TENSE DGK-04F Control Relay

TENSE DGK-04F Digital Adjustable 3-Phase Over&Under Voltage & Phase Sequence Control Relay

1. Modellpositionierung & Kernfunktionen

TENSE DGK-04F is a digitally adjustable 3-phase over&under voltage+phase sequence control relay manufactured by TENSE Electronic (Truthahn). 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.

Model Coding Rules (DGK-XXX)

2. Core Technical Specifications

3. Hauptmerkmale & Vorteile
4. Three-in-one protection: Integrates overvoltage, Unterspannung, and phase sequence protection; one device solves multiple grid risks.
5. Digital precise adjustment: Higher accuracy (±1V) than analog relays, with more intuitive settings.
6. Non-phase-sequence control mode: Switchable via DIP switch, suitable for special applications without phase sequence protection.
7. No neutral wire required: Direct 3-phase power supply, simplifies wiring and reduces installation cost.
8. Stable wide-temperature operation: Adapts to harsh industrial environments and maintains reliable performance at high/low temperatures.
9. Dual mounting methods: DIN rail or panel mounting to meet different cabinet design requirements.
10. Clear fault indication: LED indicators intuitively show operating status and fault types for quick troubleshooting.
11. DGK Series Full Model Comparison

5. Typische Anwendungsszenarien
6. Industrial motor protection: 3-phase asynchronous motors, Kompressoren, Pumps; prevents winding burnout from abnormal voltage or mechanical damage from reverse rotation due to phase sequence error.
7. Automated production lines: SPS-Steuerungssysteme, robot workstations, CNC machines; ensures stable operation of precision equipment and avoids production interruptions caused by grid fluctuations.
8. Building electrical systems: Central air conditioning, Aufzüge, pump rooms; protects key building equipment and improves power supply reliability.
9. Erneuerbare Energie: PV inverters, wind power equipment; adapts to unstable new energy output and protects grid-connected devices.
10. Petrochemical industry: Auxiliary equipment outside hazardous areas; wide-temperature design adapts to high-temperature refinery environments.
11. Mining machinery: Crushers, Förderer; withstands harsh grid conditions and prevents frequent equipment failures.
12. Alternative Products & Order Codes from Other Brands

6.1 International Brand Alternatives (Equivalent Function)

6.2 Chinese Brand Alternatives (Kostengünstig)

7. Key Points for Selection & Ersatz

7.1 Core Matching Dimensions (Must Check for Replacement)

7.2 Replacement Implementation Recommendations

1. 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.
2. Wiring verification: 3-phase power wiring must be consistent with the original system; phase sequence errors cause false protection.
3. Function test: After replacement, perform simulated overvoltage, undervoltage and phase sequence error tests to verify normal protection functions.
4. Redundant configuration: Paired configuration is recommended for critical equipment to improve system reliability.
5. Quick Selection Guide

Complete Manual of TENSE Relay Product Series Codes

1. Voltage Control Relays (Core Protection Series)

1.1 Classic Analog Type (GK Series)

1.2 Digital Adjustable Type (DGK Series)

2. Current Protection Relays (Überlast / Phase Loss Protection)

3. Time Relays (Delay Control Series)

3.1 Digital Programmable Type

3.2 Analog Timing Type

4. Temperature Control Relays (Temperature Monitoring & Protection)

5. Submersible Pump Control Relays (Special Control Series)

6. Power Factor Controllers (Reactive Power Compensation Series)

6.1 Three-Phase Series (RGT Series)

6.2 Single-Phase Series (RGM Series)

7. Special Function Relays (Customized Applications)

8. Model Coding Rule Analysis

8.1 Voltage Control Relays (GK/DGK Series)

8.2 Power Factor Controllers (RGT/RGM Series)

9. Series Quick Reference Guide

Complete Analysis of TENSE ERV Series Time Relays (Including Models, Specifications, Anwendungen & Alternativen)

1. Series Positioning & Kernfunktionen

TENSE ERV series is the economy time relay product line of TENSE Electronic (Truthahn), 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

1. Modular design: Standard 22.5mm DIN rail mounting, saves cabinet space.
2. Wide voltage supply: 150–260V AC / 24V AC/DC auto-adaptive, suitable for global power grids.
3. High reliability: IP40 protective shell, V-0 flame retardant material, adapts to harsh industrial environments.
4. Flexible configuration: Knob / DIP / button adjustment methods to meet different accuracy requirements.
5. Comprehensive protection: Überlast, Kurzschluss, overvoltage protection to extend service life.
6. Model Coding Rules (ERV-XX[D/F/M/YU/STER])

3. ERV Series Complete Model List (By Function)

3.1 Basic On-Delay Type (No Suffix D)

3.2 Multi-Function Delay Type (Suffix D)

3.3 Special Function Type (Special Suffix)

4. Core Technical Specifications Comparison (Vollständige Serie)

5. Typische Anwendungsszenarien
6. Motorsteuerung

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 (Fans, oil pumps)

2. Automatisierte Produktionslinien

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)

3. Building Electrical Systems

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

4. 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

6. Alternative Products & Order Codes from Other Brands

6.1 International Brand Alternatives (Equivalent Function)

6.2 Chinese Brand Alternatives (Kostengünstig)

7. Key Points for Selection & Ersatz

7.1 Core Matching Dimensions (Must Check for Replacement)

7.2 Auswahlempfehlungen

1. Basic delay control: Prioritize ERV-XX series (ERV-12 for 0.1–12sec, ERV-03 for 0.1–3min)
2. Complex sequential control: Choose ERV-XXD multi-function type (supports multiple delay modes)
3. Motor starting applications: Star-delta starting must use ERV-YU/STER dedicated models for accurate switching timing
4. Long-cycle control: Choose ERV-08/08M (0.1sec–100h) for unattended scenarios
5. Budget-sensitive projects: Chinese brand alternatives (CHINT, Lecker) reduce cost by 30%–50%
6. Quick Selection Guide