Technical Overview

230 VAC, 8A DIN-rail relay module with 2 CO contacts and 5 kVrms isolation, featuring Push-in CAGE CLAMP®.

Key Features

Push-in CAGE CLAMP® connection for fast, tool-free wiring of solid and fine-stranded conductors (0.34 ... 2.5 mm²).
Slim 15 mm module width enables space-saving DIN rail arrangements in high-density control panels.
Red LED status indicator provides immediate visual confirmation of the relay's energized state.
Certified to EN 61373 for railway applications; also approved to UL 508 and DNV for marine installations.
Offers good overview, fast diagnostics, and flexible contact assignment.

Technical Specification Matrix

Parameter	Value
Nominal Input Voltage	230 VAC (±10%)
Nominal Input Current at UN	4 mA
Number of Changeover Contacts	2 (DPDT)
Contact Material	AgNi 90/10
Limiting Continuous Current	8 A
Inrush Current (resistive, AC)	15 A / 4 s
Max Switching Voltage	250 VAC
Max Switching Power (resistive AC)	2000 VA
Switching Capacity (AC-15)	3 A / 250 VAC
Switching Capacity (DC-13)	2 A / 24 VDC
Pull-in Time (typical)	10 ms
Drop-out Time (typical)	35 ms
Electrical Life (resistive load)	10 × 10⁶ switching operations
Mechanical Life	30 × 10⁶ switching operations
Rated Impulse Withstand Voltage	4 kV
Dielectric Strength (control/load circuit, AC 1 min)	5 kVrms
Dielectric Strength (load/load circuit, AC 1 min)	2.5 kVrms
Pollution Degree	3
IP Rating	IP20
Connection Technology	Push-in CAGE CLAMP®
Conductor Range (solid/fine-stranded)	0.34 ... 2.5 mm² / 22 ... 14 AWG
Strip Length	9 ... 10 mm
Mounting Type	DIN-35 rail
Color	gray
Ambient Operating Temperature	-40 ... +70 °C
Physical Weight (kg)	0.05
Dimensions L x W x H (cm)	5.4 x 1.5 x 8.6

Industrial Applications

1. Industrial Process Control

This relay module is ideal for interfacing 230 VAC industrial controllers (e.g., PLCs) with various AC loads such as small motors, solenoids, or indicator lamps in manufacturing and process control systems.

Problem Solved

It provides robust electrical isolation (5 kVrms dielectric strength) between the control logic and higher voltage/current loads, protecting sensitive control circuits from voltage spikes and ensuring reliable operation of 230 VAC equipment with its 8A continuous current rating.

PLC interface230 VAC load switchingelectrical isolationprocess automationmotor controlsolenoid valve

2. Building Automation Systems

The Wago 788-516 can be used in building automation systems to switch 230 VAC lighting circuits, fan coil units, or other HVAC components, where remote control and status indication are beneficial.

Problem Solved

Its 230 VAC coil and 8A switching capacity perfectly match common building electrical systems, allowing centralized control of multiple 230 VAC loads while providing safety isolation and visual status feedback via the integrated LED. Its narrow width saves space in distribution boards.

Smart buildinglighting controlHVAC control230 VAC circuitsenergy managementremote switching

3. Railway and Marine Auxiliary Circuits

With certifications like EN 61373 (railway) and DNV (marine), this module is well-suited for switching auxiliary circuits, signaling devices, or safety interlocks in demanding transportation environments.

Problem Solved

The robust design, wide operating temperature range (-40 to +70 °C), and strong dielectric strength ensure reliable performance and safety in environments prone to vibrations, temperature extremes, and electrical noise, which are typical in railway rolling stock or marine vessels.

EN 61373DNVrailway signalingmarine auxiliary systemsvibration resistanceelectrical safetycritical control

WAGO 788-516 230VAC 8A DPDT Relay Module

WAGO 788-516 230VAC 8A DPDT Relay Module

Technical Overview

Key Features

Technical Specification Matrix

Industrial Applications

1. Industrial Process Control

2. Building Automation Systems

3. Railway and Marine Auxiliary Circuits