TENS DGK-04F Digital Adjustable 3-Phase Over&Under Voltage & Phase Sequence Control Relay
- Model Positioning & Funcții de bază
TENS DGK-04F is a digitally adjustable 3-phase over&under voltage+phase sequence control relay manufactured by TENSE Electronic (Curcan). It belongs to the DGK series protection and control products, designed specifically for industrial three-phase equipment. It monitors voltage anomalies (overvoltage/undervoltage) and phase sequence errors simultaneously to prevent equipment damage caused by grid fluctuations or wiring mistakes.
Reguli de codificare a modelelor (DGK-XXX)
| Secțiune | Sens | Exemplu |
| DGK | Prefix fix (digital adjustable 3-phase voltage control relay) | DGK |
| 4 | Codul funcției (04=over&under voltage + phase sequence control, 03=over&under voltage control, 01=single-phase control) | 4 |
| F | Version indicator (F=digital display/enhanced type, no suffix=basic type, PF=with phase failure protection) | F |
- Specificații tehnice de bază
| Categoria parametrilor | Specificații detaliate |
| Funcții de protecție | 3-phase overvoltage protection, 3-phase undervoltage protection, phase sequence error protection, non-phase-sequence control (switchable) |
| Voltage Setting Range | Supratensiune: 400V – 460V AC (reglabil); Subtensiune: 230V – 360V AC (reglabil) |
| Timp de răspuns | Fault waiting time: 0.1s – 10s (reglabil), fast response to grid anomalies |
| Evaluarea contactului | 5A/250V AC (sarcină rezistivă), 1 NU + 1 NC contact configuration |
| Tensiune de alimentare | 3-faza AC 380V (no neutral wire required), wide voltage design for global power grids |
| Frecvența de operare | 50/60Hz (auto-adaptive) |
| Temperatura de operare | -10°C până la +55°C (industrial standard wide temperature range) |
| Montare | Montare pe șină DIN (standard de 35 mm) or front panel mounting, flexible for control cabinet layout |
| Dimensiuni | Design compact, economisește spațiu în dulap |
| Certificari | CE, UL, CSA (compliant with international safety standards) |
| Grad de protectie | IP20 (trebuie instalat în dulapul de comandă) |
| Consumul de energie | Consum redus de energie, energy-saving and eco-friendly |
- Caracteristici cheie & Avantaje
- Three-in-one protection: Integrează supratensiune, subtensiune, and phase sequence protection; one device solves multiple grid risks.
- Digital precise adjustment: Higher accuracy (±1V) than analog relays, with more intuitive settings.
- Non-phase-sequence control mode: Switchable via DIP switch, suitable for special applications without phase sequence protection.
- No neutral wire required: Direct 3-phase power supply, simplifies wiring and reduces installation cost.
- Stable wide-temperature operation: Adapts to harsh industrial environments and maintains reliable performance at high/low temperatures.
- Dual mounting methods: DIN rail or panel mounting to meet different cabinet design requirements.
- Clear fault indication: LED indicators intuitively show operating status and fault types for quick troubleshooting.
- DGK Series Full Model Comparison
| Model | Funcții de protecție | Voltage Setting Range | Caracteristici speciale | Aplicație |
| DGK-01 | Single-phase over&under voltage protection | Supratensiune: 230V–260V; Subtensiune:170V–220V | Single-phase dedicated, dimensiune mai mică | Lighting systems, small single-phase equipment |
| DGK-03 | 3-phase over&under voltage protection | Supratensiune:400V–460V; Subtensiune:230V–360V | Tip de bază, cost-optimized | General 3-phase motors, pompe |
| DGK-04 | 3-phase over&under voltage + protecția secvenței fazelor | Supratensiune:400V–460V; Subtensiune:230V–360V | No digital display, funcții de bază | General industrial equipment, proiecte cu buget limitat |
| DGK-04F | 3-phase over&under voltage + protecția secvenței fazelor | Supratensiune:400V–460V; Subtensiune:230V–360V | Digital display, adjustable parameters | Echipamente de precizie, key production lines, automation systems |
| DGK-04PF | 3-phase over&under voltage + secvența fazelor + protecție împotriva defecțiunii de fază | Supratensiune:400V–460V; Subtensiune:230V–360V | Full-function protection, including phase loss detection | Critical equipment, continuous production systems |
- Scenarii tipice de aplicare
- Industrial motor protection: 3-phase asynchronous motors, compresoare, pompe; prevents winding burnout from abnormal voltage or mechanical damage from reverse rotation due to phase sequence error.
- Linii de producție automatizate: Sisteme de control PLC, posturi de lucru robot, Mașini CNC; ensures stable operation of precision equipment and avoids production interruptions caused by grid fluctuations.
- Constructii sisteme electrice: Aer conditionat central, lifturi, pump rooms; protects key building equipment and improves power supply reliability.
- Renewable energy: PV inverters, wind power equipment; adapts to unstable new energy output and protects grid-connected devices.
- Petrochemical industry: Auxiliary equipment outside hazardous areas; wide-temperature design adapts to high-temperature refinery environments.
- Mining machinery: Concasoare, transportoare; withstands harsh grid conditions and prevents frequent equipment failures.
- Alternative Products & Order Codes from Other Brands
6.1 Alternative de brand internațional (Equivalent Function)
| TENSE Model | Marca | Model alternativ | Cod de comandă | Puncte cheie de potrivire |
| DGK-04F | Siemens | 3UG4632-1AW30 | 3UG4632-1AW30 | 3-phase over&under voltage + protecția secvenței fazelor, digital display, adjustable parameters |
| DGK-04F | Schneider | RM22TG20 | RM22TG20 | 3-phase voltage monitoring, peste&under voltage + protecția secvenței fazelor, 5A contacte |
| DGK-04F | ABB | CM-PVS.41S | 1SVR730820R1200 | 3-phase over&under voltage + secvența fazelor + protecție împotriva pierderii de fază, full grid monitoring |
| DGK-04F | Omron | K8DS-PH3 | K8DS-PH3 | Digital 3-phase voltage & phase sequence relay, adjustable response time |
6.2 Chinese Brand Alternatives (Cost-Eficient)
| TENSE Model | Marca | Model alternativ | Cod de comandă | Puncte cheie de potrivire |
| DGK-04F | CHINT | NJD-8 | NJD-8 | 3-phase over&under voltage + protecția secvenței fazelor, accesibile, suitable for domestic grids |
| DGK-04F | Delicios | CDJS1 | CDJS1 | Digital display, comprehensive 3-phase voltage & protecția secvenței fazelor, 5A contact rating |
| DGK-04F | Comutator Changshu | CK3-32 | CK3-32 | Triple protection: peste&under voltage + secvența fazelor + pierdere de fază, industrial-grade reliability |
- Key Points for Selection & Înlocuire
7.1 Dimensiuni de potrivire a miezului (Trebuie să verificați pentru înlocuire)
| Dimensiune | Standard de potrivire | Note |
| Funcții de protecție | Fully consistent (supratensiune + subtensiune + secvența fazelor) | Avoid insufficient protection due to missing functions |
| Evaluarea contactului | ≥5A/250V AC | Ensure it can drive control circuit loads |
| Tensiune de alimentare | 3-phase 380V (no neutral wire) | Match original system power to avoid complex wiring |
| Timp de răspuns | 0.1–10s adjustable | Short-delay models required for fast-response equipment |
| Montare | Montare pe șină DIN | Maintain consistent control cabinet layout |
7.2 Recomandări de implementare a înlocuirii
- Parameter migration: Record overvoltage/undervoltage thresholds, response time and other parameters of the original DGK-04F, and set identical parameters on the new device after replacement.
- Wiring verification: 3-phase power wiring must be consistent with the original system; phase sequence errors cause false protection.
- Test de funcționare: După înlocuire, perform simulated overvoltage, undervoltage and phase sequence error tests to verify normal protection functions.
- Redundant configuration: Paired configuration is recommended for critical equipment to improve system reliability.
- Ghid de selecție rapidă
| Aplicație | Model preferat | Alternative Suggestion | Budget Reference |
| Key production lines / echipamente de precizie | DGK-04PF (protectie cu functionalitate completa) | Siemens 3UG4632-1AW30 | Medium–high budget |
| General industrial motors / pompe | DGK-04F | Schneider RM22TG20 | Medium budget |
| Proiecte sensibile la costuri / civil buildings | DGK-04 | CHINT NJD-8 / Delixi CDJS1 | Low budget |
Complete Manual of TENSE Relay Product Series Codes
- Voltage Control Relays (Core Protection Series)
1.1 Classic Analog Type (GK Series)
| Model | Descrierea funcției | Aplicație |
| GKE-40 | Single-phase over&under voltage control relay | Residential/commercial single-phase equipment protection |
| GKV-12 | Single-phase over&under voltage control relay | Small single-phase motors, controlul pompei |
| GKV-12F | Single-phase over&under voltage control relay (sporit) | Precision single-phase equipment requiring digital display |
| GK-03 | 3-phase over&under voltage control relay | Basic voltage protection for 3-phase motors |
| GK-04 | 3-phase over&under voltage + phase sequence control relay | 3-phase equipment protection against wiring errors + voltage anomalies |
| GK-04F | 3-phase over&under voltage + phase sequence control relay (digital display) | 3-phase equipment requiring status indication |
| GK-04S | 3-phase over&under voltage + phase sequence control relay (special version) | Custom for specific industrial scenarios |
| GKM-11 | Single-phase over&under voltage control relay (high sensitivity) | Voltage fluctuation-sensitive equipment |
| GKM-02 | Single-phase over&under voltage control relay (compact) | Installation in narrow control cabinets |
| GKM-02F | Single-phase over&under voltage control relay (compact + display) | Echipament mic + monitorizarea stării |
| GKT-03 | 3-phase over&under voltage control relay (gamă largă) | Special voltage-class 3-phase systems |
| GKT-03F | 3-phase over&under voltage control relay (gamă largă + display) | Gamă largă de tensiune + status display |
1.2 Digital Adjustable Type (DGK Series)
| Model | Descrierea funcției | Aplicație |
| DGK-01 | Digital adjustable single-phase over&under voltage control relay | Precision single-phase equipment with precise parameter adjustment |
| DGK-03 | Digital adjustable 3-phase over&under voltage control relay | 3-phase motors requiring accurate voltage protection |
| DGK-04 | Digital adjustable 3-phase over&under voltage + phase sequence control relay | Comprehensive protection for standard 3-phase equipment |
| DGK-04F | Digital adjustable 3-phase over&under voltage + phase sequence control relay (digital display) | Industrial automation production lines requiring status monitoring |
| DGK-04PF | Digital adjustable 3-phase over&under voltage + secvența fazelor + phase failure protection relay (full-function) | Critical equipment requiring complete grid monitoring |
- Current Protection Relays (Supraîncărcare / Protecție împotriva pierderii de fază)
| Model | Descrierea funcției | Aplicație |
| TRM-100 | Digital 3-phase overload protection relay | Supraîncărcare, rotor blocat, phase loss protection for 3-phase motors |
| TRM-200 | Digital 3-phase overload protection relay (extended) | Large 3-phase motors with multi-parameter adjustment |
| DR-01 | Single-phase current protection relay | Overload protection for single-phase motors |
| DR-02 | 3-phase current protection relay | Basic current protection for small 3-phase motors |
- Time Relays (Delay Control Series)
3.1 Digital Programmable Type
| Model | Descrierea funcției | Interval de timp |
| TTR-10 | Digital programmable multi-function time relay | 0.01s – 9999h, multiple modes |
| TTR-20 | Digital programmable time relay (ieșire dublă) | Complex control logic requiring two delay groups |
3.2 Analog Timing Type
| Model | Descrierea funcției | Interval de întârziere |
| TT-01 | Single delay time relay | 0.1s – 10s |
| TT-02 | Dual delay time relay | 0.1s – 60s |
| TT-03 | Long delay time relay | 1s – 10min |
- Temperature Control Relays (Monitorizarea temperaturii & Protecţie)
| Model | Descrierea funcției | Interval de temperatură |
| DT-96Y | Digital temperature control relay (96mm panel) | -50°C ~ +150°C |
| DT-72Y | Digital temperature control relay (72mm panel) | -50°C ~ +150°C |
| DT-48Y | Digital temperature control relay (48mm panel) | -50°C ~ +150°C |
| DT-36Y | Digital temperature control relay (36mm panel) | -50°C ~ +150°C |
| DT-72EM | Digital temperature control relay (sporit, with communication) | -50°C ~ +200°C, for remote monitoring |
| DT-Y | Universal digital temperature control relay | -50°C ~ +150°C, compact |
| DT-96E/DT-72E/DT-48E/DT-36E | Digital temperature control relay (funcții extinse) | -50°C ~ +200°C, multiple output modes |
| DT-322 | Dual-channel temperature control relay | Simultaneous monitoring of two temperature points |
| DTZ-96/DTZ-72/DTZ-48 | Intelligent temperature control relay (with PID regulation) | Precision temperature control systems (cuptoare, furnaces) |
| TK-1/TK-1.5/TK-2/TK-2.5/TK-3/TK-4/TK-5 | Releu termic de suprasarcina | Motor winding temperature protection, used with contactors |
| PT-1/PT-3 | Temperature probe dedicated relay | Temperature sensor signal conversion & controla |
- Submersible Pump Control Relays (Special Control Series)
| Model | Descrierea funcției | Metoda de control |
| TDK-96 | Intelligent 3-phase submersible pump control relay (2.9″ graphic LCD) | Electrode-less well control, 1A–250A current range |
| TDK-02 | 3-phase submersible pump control relay (de bază) | Ordinary well submersible pumps, basic protection |
| MDK-02 | Single-phase submersible pump control relay | Small single-phase submersible pumps, household/farm use |
| TDK-97 | 3-phase submersible pump control relay (sporit) | Large submersible pumps with fault recording |
- Power Factor Controllers (Reactive Power Compensation Series)
6.1 Three-Phase Series (RGT Series)
| Model | Descrierea funcției | Compensation Stages |
| RGT-08 | 3-phase power factor controller | 8-stage compensation |
| RGT-12 | 3-phase power factor controller | 12-stage compensation, graphic LCD |
| RGT-12M | 3-phase power factor controller (memory) | 12-etapă, power-off memory |
| RGT-12H | 3-phase power factor controller (with communication) | 12-etapă, Comunicare Modbus |
| RGT-12TH | 3-phase power factor controller (thyristor trigger) | 12-etapă, contactless switching |
| RGT-18 | 3-phase power factor controller | 18-stage compensation |
| RGT-18H | 3-phase power factor controller (with communication) | 18-etapă, Comunicare Modbus |
| RGT-18TH | 3-phase power factor controller (thyristor trigger + comunicare) | 18-etapă, contactless + comunicare |
| RGT-24H | 3-phase power factor controller (with communication) | 24-stage compensation, Comunicare Modbus |
| RGT-MT18 | 3-phase digital power factor controller (advanced) | 18-etapă, multi-parameter adjustable |
| RGT-12SVC/RGT-18SVC/RGT-MT18 SVC | 3-phase static var compensator controller | Dynamic reactive power compensation, răspuns rapid |
6.2 Single-Phase Series (RGM Series)
| Model | Descrierea funcției | Compensation Stages |
| RGM-07E | Single-phase power factor controller | 7-stage compensation |
| RGM-12E | Single-phase power factor controller | 12-stage compensation |
| RGM-12ER | Single-phase power factor controller (with communication) | 12-etapă, Comunicare Modbus |
| RGM-12S | Single-phase power factor controller (simple) | 12-etapă, funcții de bază |
- Special Function Relays (Customized Applications)
| Model | Descrierea funcției | Aplicație |
| DGR-01 | Earth fault protection relay | Equipment earth fault detection, prevenirea șocurilor electrice |
| DGT-02 | Digital earth fault protection relay | Precision equipment requiring earth current digital display |
| TKR-01 | Star-delta starting relay | Star-delta reduced-voltage starting control for 3-phase motors |
| TSR-02 | Auto-transformer starting relay | Auto reduced-voltage starting control for large motors |
| PSR-03 | Phase sequence protection relay (independent) | 3-phase equipment requiring only phase sequence protection |
- Model Coding Rule Analysis
8.1 Voltage Control Relays (GK/DGK Series)
| Segment de cod | Sens | Exemplu |
| G | Prefix fix (voltage control) | GK-04F |
| K | Tipul funcției (K=control) | DGK-04PF |
| X | Fază / caracteristici (E=single-phase, 03=3-phase over&under voltage, 04=3-phase over&under voltage + secvența fazelor) | GKE-40 |
| Suffix F | Enhanced type (digital display / funcții extinse) | GK-04F |
| Prefix D | Digital adjustable type | DGK-01 |
| Suffix PF | With phase failure protection | DGK-04PF |
8.2 Power Factor Controllers (RGT/RGM Series)
| Segment de cod | Sens | Exemplu |
| RG | Prefix fix (reactive power control) | RGT-12 |
| T/M | Fază (T=3-phase, M=single-phase) | RGM-12E |
| Număr | Compensation stages (08=8, 12=12, 18=18) | RGT-18 |
| Suffix H | With communication function | RGT-12H |
| Suffix TH | Thyristor trigger output | RGT-12TH |
| Suffix SVC | Static var compensation | RGT-12SVC |
- Series Quick Reference Guide
| Categoria de produs | Seria de bază | Model reprezentativ | Funcții principale |
| Voltage Protection | GK/DGK | DGK-04F | Peste&under voltage + protecția secvenței fazelor, digital adjustable |
| Current Protection | TRM/DR | TRM-100 | Supraîncărcare + pierdere de fază + locked rotor protection |
| Time Control | TTR/TT | TTR-10 | Multi-function programmable delay |
| Controlul temperaturii | DT/DTZ | DT-96Y | Digital temperature monitoring & controla |
| Pump Control | TDK/MDK | TDK-96 | Comprehensive submersible pump protection & controla |
| Reactive Power Compensation | RGT/RGM | RGT-12H | Power factor optimization, economisirea energiei |
Complete Analysis of TENSE ERV Series Time Relays (Including Models, Specificații, Aplicații & Alternative)
- Poziționarea în serie & Funcții de bază
TENSE ERV series is the economy time relay product line of TENSE Electronic (Curcan), focusing on delay control and sequential logic in industrial automation. It covers basic on-delay, multi-function cycle, star-delta starting and other special applications. With compact design, wide voltage adaptability and high cost performance as core advantages, it is widely used in motor control, production line automation, building electrical and other fields.
Core Features of the Series
- Design modular: Standard 22.5mm DIN rail mounting, economisește spațiu în dulap.
- Wide voltage supply: 150–260V AC / 24V AC/DC auto-adaptive, suitable for global power grids.
- Fiabilitate ridicată: IP40 protective shell, V-0 flame retardant material, adapts to harsh industrial environments.
- Configurație flexibilă: Buton / DIP / button adjustment methods to meet different accuracy requirements.
- Protecție cuprinzătoare: Supraîncărcare, scurtcircuit, overvoltage protection to extend service life.
- Reguli de codificare a modelelor (ERV-XX[D/F/M/YU/STER])
| Segment de cod | Sens | Exemplu |
| ERV | Prefix fix (economy time relay) | ERV-12, ERV-09D |
| XX | Basic time range (03=0.1–3min, 09=0.1–9min, 12=0.1–12sec, 30=0.1–30min, 60=0.1–60min, 08=0.1sec–100h) | ERV-30, ERV-08 |
| D | Multi-function type (includes on-delay, întârziere la oprire, ciclu, etc.) | ERV-03D, ERV-60D |
| F | Flashing type (dual time setting: run time + stop time) | ERV-09F |
| M | Memory type (retains settings after power failure) | ERV-08M |
| YU/STER | Star-delta dedicated (built-in Y-Δ conversion logic, fixed short delay) | ERV-YU, ERV-STER |
- ERV Series Complete Model List (By Function)
3.1 Basic On-Delay Type (No Suffix D)
| Model | Interval de întârziere | Configurare contact | Aplicație |
| ERV-12 | 0.1s – 12s (reglabil) | 1 NU + 1 NC | Short delay control (electrovalve, cylinder fast action) |
| ERV-03 | 0.1s – 3min (reglabil) | 1 NU + 1 NC | Medium delay (fani, pump start delay) |
| ERV-09 | 0.1s – 9min (reglabil) | 1 NU + 1 NC | Long delay (încălzitoare, lighting system delay) |
| ERV-30 | 0.1s – 30min (reglabil) | 1 NU + 1 NC | Extra-long delay (equipment preheating, cooling delay) |
| ERV-60 | 0.1s – 60min (reglabil) | 1 NU + 1 NC | Ultra-long delay (intermittent production, timed shutdown) |
| ERV-08 | 0.1s – 100h (reglabil) | 1 NU + 1 NC | Very long delay (periodic maintenance reminder, backup equipment switching) |
3.2 Multi-Function Delay Type (Suffix D)
| Model | Interval de întârziere | Modes | Funcții speciale | Aplicație |
| ERV-03D | 0.1s – 3min (reglabil) | 5+ | Întârziere la pornire, întârziere la oprire, single pulse, interval pulse | Small automation equipment, multi-logic control |
| ERV-09D | 0.1s – 9min (reglabil) | 5+ | Cycle control (run-stop alternating), flashing mode | Warning lights, intermittent pumps, advertising light boxes |
| ERV-30D | 0.1s – 30min (reglabil) | 5+ | Extended delay range for medium-long cycle control | Production line segment control, material conveying delay |
| ERV-60D | 0.1s – 60min (reglabil) | 5+ | Dual delay setting for complex sequential logic | Large equipment startup process, multi-level safety interlock |
3.3 Special Function Type (Special Suffix)
| Model | Tipul funcției | Parametrii de bază | Aplicație |
| ERV-09F | Flashing relay | Run:0.1sec–99min, Stop:0.1sec–99min | Warning lights, alarme, signal indication |
| ERV-08M | Memory delay relay | 0.1sec–100h, power-off parameter retention | Unattended equipment, emergency systems |
| ERV-YU | Star-delta starting relay | Y delay:0.1–30sec, Y-Δ switch:10–500msec (reglabil) | Star-delta reduced-voltage starting for 3-phase asynchronous motors |
| ERV-STER | Star-delta starting relay (sporit) | Y delay:0.1–30sec, Y-Δ switch:15msec (fix), Stare LED | Precision motor control (compresoare, pompe) |
| ERV-09DD | Dual-output delay relay | Two independent delay controls, 0.1–9min | Sequential control of two independent devices |
- Core Technical Specifications Comparison (Full Series)
| Categoria parametrilor | Tip de bază (ERV-XX) | Multi-Function Type (ERV-XXD) | Star-Delta Dedicated (ERV-YU/STER) | Flashing Type (ERV-09F) |
| Evaluarea contactului | 5A/250V AC (resistive) | 5A/250V AC (resistive) | 5A/250V AC (resistive) | 5A/250V AC (resistive) |
| Configurare contact | 1 NU + 1 NC | 1 NU + 1 NC | 2 NU + 1 NC (star-delta dedicated) | 1 NU + 1 NC |
| Tensiune de alimentare | 150–260V AC/24V AC/DC | 150–260V AC/24V AC/DC | 150–260V AC/24V AC/DC | 150–260V AC/24V AC/DC |
| Frecvența de operare | 50/60Hz (auto-adaptive) | 50/60Hz (auto-adaptive) | 50/60Hz (auto-adaptive) | 50/60Hz (auto-adaptive) |
| Temperatura de operare | -10°C până la +55°C | -10°C până la +55°C | -10°C până la +55°C | -10°C până la +55°C |
| Consumul de energie | <4VA | <4VA | <4VA | <4VA |
| Montare | DIN rail (35mm) | DIN rail (35mm) | DIN rail (35mm) | DIN rail (35mm) |
| Dimensiuni | 22.5×67×76mm | 22.5×67×76mm | 22.5×67×76mm | 22.5×67×76mm |
| Certificari | CE, UL, CSA | CE, UL, CSA | CE, UL, CSA | CE, UL, CSA |
- Scenarii tipice de aplicare
- Controlul motorului
ERV-YU/STER: Star-delta starting for 3-phase motors (7.5kW–90kW)
ERV-30D: Motor overload protection delay to prevent frequent starting
ERV-03: Delayed start of motor auxiliary equipment (fani, pompe de ulei)
- Linii de producție automatizate
ERV-12: Short-cycle action control (cylinder extension, material pushing)
ERV-60D: Inter-process delay to ensure material in place and temperature compliance
ERV-08: Long-cycle equipment maintenance reminders (filter replacement, lubrication)
- Sisteme electrice de clădire
ERV-09F: Emergency lighting flashing control, exit indication
ERV-30: Delayed start of air conditioning and ventilation to balance grid load
ERV-60: Timed control of public area lighting for energy saving
- Special Industrial Applications
ERV-09DD: Dual-station switching control for welding equipment
ERV-08M: Delayed closing of cold storage doors to prevent cold air loss
ERV-60D: Chemical dosing and backwash sequence control in water treatment systems
- Alternative Products & Order Codes from Other Brands
6.1 Alternative de brand internațional (Equivalent Function)
| TENSE Model | Marca | Model alternativ | Cod de comandă | Puncte cheie de potrivire |
| ERV-03D | Siemens | 3RP1505-1BQ30 | 3RP1505-1BQ30 | 0.1–3min delay, multifuncțional, DIN rail |
| ERV-60D | Schneider | RE17R12MW | RE17R12MW | 0.1–60min delay, multiple modes, tensiune largă |
| ERV-YU | ABB | CT-MPS.21 | 1SVR730820R1200 | Pornire stea-delta, 0.1–30sec delay, ieșire dublă |
| ERV-09F | Omron | H3CR-F8 | H3CR-F8 | Flashing control, dual time setting, 5A contacte |
6.2 Chinese Brand Alternatives (Cost-Eficient)
| TENSE Model | Marca | Model alternativ | Cod de comandă | Puncte cheie de potrivire |
| ERV-03D | CHINT | JSZ3A-A | JSZ3A-A | Întârziere la pornire, 0.1–3min, 1 NU + 1 NC |
| ERV-60D | Delicios | CDJS1-60 | CDJS1-60 | Multi-function delay, 0.1–60min, tensiune largă |
| ERV-YU | Comutator Changshu | CK3-YD | CK3-YD | Pornire stea-delta, 0.1–30sec, Indicatie LED |
| ERV-08M | Tianshui 213 | JSZ8-08M | JSZ8-08M | Memory delay, 0.1sec–100h, retenție la oprire |
- Key Points for Selection & Înlocuire
7.1 Dimensiuni de potrivire a miezului (Trebuie să verificați pentru înlocuire)
| Dimensiune | Standard de potrivire | Note |
| Interval de întârziere | Covers original equipment requirements (de ex., 0.1–30sec → ERV-YU) | Avoid insufficient or redundant time range |
| Configurare contact | Same quantity & tip (e.g.,1 NO+1 NC →1 NO+1 NC) | Star-delta applications require 2 NU+1 NC |
| Tensiune de alimentare | Adapt to original system (150–260V AC/24V DC) | Avoid damage due to voltage mismatch |
| Montare | Montare pe șină DIN (22.5mm standard size) | Maintain consistent cabinet layout |
| Function Mode | Same core function (flashing→flashing, star-delta→star-delta) | Multi-function type can replace basic type |
7.2 Recomandări de selecție
- Basic delay control: Prioritize ERV-XX series (ERV-12 for 0.1–12sec, ERV-03 for 0.1–3min)
- Complex sequential control: Choose ERV-XXD multi-function type (supports multiple delay modes)
- Motor starting applications: Star-delta starting must use ERV-YU/STER dedicated models for accurate switching timing
- Long-cycle control: Choose ERV-08/08M (0.1sec–100h) for unattended scenarios
- Budget-sensitive projects: Chinese brand alternatives (CHINT, Delicios) reduce cost by 30%–50%
- Ghid de selecție rapidă
| Aplicație | Preferred TENSE Model | Alternative Suggestion | Budget Reference |
| 3-phase motor star-delta starting | ERV-YU/STER | ABB CT-MPS.21 / CHINT CK3-YD | Medium–low budget |
| Short-cycle control (<1min) | ERV-03/ERV-03D | Siemens 3RP1505 / Delixi CDJS1-03 | Low budget |
| Long-cycle control (>1min) | ERV-30/ERV-60D | Schneider RE17R12MW / CHINT JSZ3C | Medium budget |
| Intermitent / alarm control | ERV-09F | Omron H3CR-F8 / CHINT JSZ3F | Low budget |
| Memory control | ERV-08M | Tianshui 213 JSZ8-08M | Medium budget |
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