PVA-KL26 Digital Signal Module

PVA-KL26: KOPPEN & LETHEM Digital Signal Module / Relay Module

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).

Caratteristiche principali

Vantaggi del prodotto

1. Intuitive Status Monitoring: LED indicator displays real-time operating status, reducing the risk of misoperation
2. Circuit Protection: Built-in RC circuit effectively suppresses arcing and voltage transients, extending service life
3. Easy Installation: Plug-in design saves maintenance time and cost
4. Adattabilità ambientale: Suitable for harsh industrial and marine environments

Applicazioni tipiche

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

1. Ensure the supply voltage is within 12-24 VDC to avoid overvoltage damage
2. Observe correct polarity during installation to prevent damage to the LED indicator and internal circuits
3. The RC circuit must be matched to the load for optimal arc suppression
4. 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 / Relay Module)

The PVA-KL26 is a 12/24 VDC digital signal module / relay interface module specially designed by KOPPEN & LETHEM (Paesi Bassi) for industrial and marine environments. It integrates status indication and arc suppression functions, ideal for signal conversion and control under harsh operating conditions.

1. Parametri elettrici principali

1. Meccanico & Caratteristiche fisiche

III. Environmental & Condizioni operative

1. Pin Configuration & Wiring Definition

(Standard 6-pin terminal block)

1. Detailed Functional Features
2. Arc Suppression Technology

Built-in RC snubber circuit (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 volte.

2. 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

3. Safety Design

Polarity protection prevents damage from reverse power connection

Overcurrent protection guards against output short circuits

Surge voltage suppression protects internal electronic components

1. Application Limitations & Note

Load Type Adaptation

Carichi induttivi (motori, elettrovalvole): recommended derating to 50% di valore nominale

Capacitive loads (capacitors, lamps): current-limiting resistor required to prevent inrush current

Specifiche di installazione

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

Maintenance Guidelines

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. Modelli alternativi & Compatibilità

PVA-KL26 Standard Pin / Terminal Configuration

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 A 6 from left to right.

Note importanti

1. This model has only NO (normalmente aperto) contatti, no NC (normalmente chiuso)
2. Input with reverse polarity protection; LED lights when IN+ is active
3. Built-in RC snubber on output allows direct driving of inductive loads such as solenoids and coils
4. Terminal suitable wire cross-section: 0.5-2.5 mm²