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PVA-KL26: KOPPEN & LETHEM Digital Signal Module / Modul releu
The PVA-KL26 is a 12/24 VDC digital signal module / relay module manufactured by KOPPEN & LETHEM of the Netherlands. It is widely used in industrial control and marine applications, integrating a plug-in LED status indicator and RC circuit (for arc suppression and voltage transient protection).
Caracteristici de bază
| Parametru | Caietul de sarcini |
| Producător | KOPPEN & LETHEM (sometimes associated with Doedijns) |
| Tensiune de operare | 12/24 VDC (proiectare cu tensiune largă) |
| Funcții de bază | Signal conversion, switching control, indicație de stare |
| Key Components | Plug‑in LED indicator, RC circuit (arc suppression) |
| Mounting Style | Plug‑in design for quick installation, removal and maintenance |
| Câmpuri de aplicare | Automatizare industrială, ship control systems, hydraulic equipment control |
Avantajele produsului
- Intuitive Status Monitoring: LED indicator displays real-time operating status, reducing the risk of misoperation
- Circuit Protection: Built-in RC circuit effectively suppresses arcing and voltage transients, extending service life
- Instalare ușoară: Plug-in design saves maintenance time and cost
- Adaptabilitate la mediu: Suitable for harsh industrial and marine environments
Aplicații tipice
The PVA-KL26 is commonly used for:
Signal conversion and control in marine automation systems
Remote control circuits for hydraulic machinery
Status monitoring and alarm systems for industrial equipment
Relay contact protection and signal amplification
Note
- Ensure the supply voltage is within 12-24 VDC to avoid overvoltage damage
- Observe correct polarity during installation to prevent damage to the LED indicator and internal circuits
- The RC circuit must be matched to the load for optimal arc suppression
- For use in dry, dust-free environments only; additional protection is required in humid conditions
PVA-KL26 Detailed Technical Specification Manual
(KOPPEN & LETHEM Digital Signal / Modul releu)
The PVA-KL26 is a 12/24 VDC digital signal module / relay interface module specially designed by KOPPEN & LETHEM (Olanda) for industrial and marine environments. It integrates status indication and arc suppression functions, ideal for signal conversion and control under harsh operating conditions.
- Parametrii electrici de bază
| Parametru | Valoare | Observații |
| Tensiune de operare | 12/24 VDC (wide‑voltage compatible) | Polarity protection, reverse‑connection resistant |
| Control Input Signal | 24 VDC logic level | Compatible with standard PLC digital outputs |
| Evaluarea contactului | 2 A @ 24 VDC / 1 A @ 250 VAC | Sarcină rezistivă; derate for inductive loads |
| LED Indicator | Plug‑in red LED | Lights up when powered, clear status visibility |
| RC Arc Suppression Circuit | Built‑in standard RC network | Suppresses contact arcing and voltage transients, extends contact life |
| Rezistenta de izolare | ≥ 100 MΩ (la 500 VDC) | Between input‑output‑ground |
| Dielectric Strength | 1500 VAC for 1 minut | Between input‑output‑ground |
| Consumul de energie | < 1 W | Putere redusă, potrivit pentru funcționare continuă |
- Mecanic & Caracteristici fizice
| Parametru | Valoare | Observații |
| Montare | Standard 35 mm Montare pe șină DIN | Snap‑in design for easy installation/removal |
| Module Dimensions | W 22.5 mm × H 90 mm × D 60 mm | Standard DIN rail module size |
| Greutate | Aproximativ. 80 g | Ușoare, economisește spațiu în dulap |
| Connector Type | Plug‑in terminal block | Accepts 2.5 mm² wire, tool‑free wiring |
| Protecție la intrare | IP20 | For indoor control cabinet use |
| Materialul carcasei | Flame‑retardant ABS plastic | UL94 V‑0 rated, high fire resistance |
III. de mediu & Condiții de funcționare
| Parametru | Valoare | Observații |
| Temperatura de operare | −25 °C ~ +70 °C | Wide temperature range for marine/industrial use |
| Temperatura de depozitare | −40 °C ~ +85 °C | Safe storage under extreme temperatures |
| Umiditatea relativă | 5% ~ 95% (necondens) | Adaptable to high‑humidity marine environments |
| Vibrație & Şoc | IEC 60068‑2‑6 / IEC 60068‑2‑27 | Complies with marine and industrial anti‑vibration standards |
| EMC | ÎN 55011 / EN 61000‑6‑2 | Immune to electromagnetic interference, suitable for industrial automation |
- Pin Configuration & Wiring Definition
(Standard 6-pin terminal block)
| Pin No. | Function Definition | Descrierea cablajului |
| 1 | V+ (Positive Power) | Connect to 12/24 VDC positive |
| 2 | V− (Negative Power) | Connect to 12/24 VDC negative / GND |
| 3 | ÎN (Signal Input) | Connect to control signal (24 VDC active high) |
| 4 | COM (Comun) | Relay contact common terminal |
| 5 | NU (Deschis normal) | Closed when relay is energized |
| 6 | NC (În mod normal închis) | Closed when relay is de‑energized |
- Caracteristici funcționale detaliate
- Arc Suppression Technology
Circuit snubber RC încorporat (standard: 100 Oh / 0.1 μF) absorbs back EMF from inductive loads at contact break, effectively suppressing arcing and extending contact life by 3-5 ori.
- Status Monitoring System
Red LED provides real-time module status indication
Simple fault diagnosis: LED off = power fault; LED on but no contact action = internal circuit fault
- Design de siguranță
Polarity protection prevents damage from reverse power connection
Overcurrent protection guards against output short circuits
Surge voltage suppression protects internal electronic components
- Application Limitations & Note
Load Type Adaptation
Sarcini inductive (motoare, electrovalve): recommended derating to 50% of rated value
Capacitive loads (condensatoare, lămpile): current-limiting resistor required to prevent inrush current
Specificații de instalare
Avoid installation near heat sources (> 70 °C)
Maintain at least 5 mm clearance around the module for heat dissipation
Ensure secure wire crimping during wiring to prevent poor contact
Ghid de întreținere
Regularly check LED status and terminal tightness
Insulation test recommended every 6 months in harsh environments
Replace the entire module if faulty; internal repair is not recommended
VII. Modele alternative & Compatibilitate
| Model alternativ | Marca | Descrierea compatibilităţii |
| PVA‑KL26‑EX | KOPPEN & LETHEM | Intrinsically safe version for hazardous areas |
| RM22UA02 | Schneider Electric | Compatibil funcțional, slight dimensional differences |
| DILM25‑10 | Siemens | Higher contact capacity, usable as alternative |
PVA-KL26 Standard Pin / Configurarea terminalului
This module uses a 6-pin plug-in screw terminal block.
When facing the front of the module with terminals downward, terminal numbers are 1 la 6 from left to right.
| Terminalul nr. | Marcare | Descrierea funcției |
| 1 | IN+ | Positive digital control signal input (24 VDC) |
| 2 | IN− | Negative signal input / common ground |
| 3 | V+ | Positive operating power (12/24 VDC) |
| 4 | V− | Negative operating power / GND |
| 5 | NU | Normally open relay output contact |
| 6 | COM | Relay contact common terminal |
Note importante
- This model has only NO (deschis în mod normal) contacte, no NC (în mod normal închis)
- Input with reverse polarity protection; LED lights when IN+ is active
- Built-in RC snubber on output allows direct driving of inductive loads such as solenoids and coils
- Terminal suitable wire cross-section: 0.5-2.5 mm²
