WAGO 750-517 2-Channel Relay Output Module

Technical Overview

2-channel potential-free relay output module for WAGO I/O System 750, switching 250 VAC/1 A.

Key Features

2 digital outputs (channels) with 2 changeover contacts.
Potential-free output characteristic for isolated switching.
LED status indication for each relay.
CAGE CLAMP® wire connection technology.
RoHS Compliant.
IP20 protection type.
Wide operating temperature range of -40 to +70 °C.
Vibration resistance up to 5g per IEC 60068-2-6.
Shock resistance up to 15g per IEC 60068-2-27.

Technical Specification Matrix

Parameter	Value
Number of digital outputs	2
Output circuit design	2 changeover contacts
Output characteristic	Potential-free
Max. switching voltage	250 VAC / 300 VDC
Max. switching current	1 A AC; 1 A at 40 VDC; 0.15 A at 300 VDC
Min. switching current	100 mA / 12 VDC
Max. internal current consumption	90 mA
Protection type	IP20
Surrounding air temperature (operation)	-40 … 70 °C
Surrounding air temperature (storage)	-40 … 85 °C
Relative humidity	95 %, short-term condensation acc. to class 3K7 / IEC EN 60721-3-3
Vibration resistance	5g per IEC 60068-2-6
Shock resistance	15g per IEC 60068-2-27
Contact material	Silver alloy
Mechanical life (min.)	5 x 10^6 switching operations
Electrical life (min.)	1 x 10^6 (1 A AC/250 V) (resistive load)
Isolation (supply/DIN rail)	Rated Insulation Voltage: 2.5 kV AC or 3.5 kV DC; Rated impulse voltage: 5 kV; Overvoltage category: III
Physical Weight (kg)	0.05
Dimensions L x W x H (cm)	10 x 1.2 x 6.4

Industrial Applications

1. Industrial Lighting System Control

This module can precisely control two independent industrial lighting circuits, providing reliable switching for LED luminaires or contactors for larger loads in factory environments or warehouses.

Problem Solved

Provides isolated switching for lighting circuits, protecting the control system from potential electrical interference and ensuring compatibility with various load types and independent power sources. The 1A switching current is suitable for control signals to contactors.

Isolated switchingAC 250 V1 APotential-free2 changeover contactsControl signals

2. Low-Power Motor Control Interface

Used as an interface between a PLC or automation controller and low-power motor starters or small motor contactors in process control applications.

Problem Solved

Enables safe and isolated switching for small motors, protecting the control logic from electrical noise feedback and power surges from motor circuits. The potential-free contacts are crucial for electrical separation and safety.

Relay output2 changeover contactsPotential-free250 VAC1AIsolatedMotor control signals

3. HVAC System Actuator and Valve Control

Ideal for directly controlling small HVAC actuators such as dampers, solenoid valves, or for providing signaling to larger HVAC control panels within commercial buildings or industrial facilities.

Problem Solved

Offers precise, isolated two-channel switching for HVAC components, based on automation logic. The 250V AC, 1A rating is adequate for many solenoid valves or small actuator motors, and the potential-free outputs prevent interference with sensitive HVAC control electronics. The IP20 rating is suitable for indoor panel installations.

Digital output module2-channelRelay250 VAC1 APotential-freeHVAC controlActuator control