WAGO 788-315 DPDT Relay Module 110VDC

Technical Overview

DIN-rail mountable DPDT relay module with 110 VDC coil, 8 A continuous current, and Push-in CAGE CLAMP® terminals.

Key Features

DPDT relay with 2 changeover contacts.
110 VDC nominal input voltage (coil voltage).
Limiting continuous current: 8 A.
Maximum switching voltage: 250 VAC.
Maximum switching power: 2000 VA.
Red LED status indicator.
DIN-rail mountable 15 mm wide housing.
Push-in CAGE CLAMP® spring terminal connections for tool-free wiring.
Operating temperature range: -40°C to +70°C.
IP20 enclosure protection.
Mechanical life: 30 x 10^6 operations.
Integrated test ports for simple troubleshooting.
RoHS compliant.

Technical Specification Matrix

Parameter	Value
Nominal Input Voltage	110 VDC
Limiting Continuous Current	8 A
Contact Configuration	DPDT (2 Changeover Contacts)
Maximum Switching Voltage	250 VAC
Maximum Switching Power	2000 VA
Operating Temperature	-40°C to +70°C
IP Rating	IP20
Mounting Type	DIN-rail
Module Width	15 mm
Connection Technology	Push-in CAGE CLAMP®
Terminal Capacity	0.34 - 2.5 mm² (AWG 22 - 14)
Operate Time	8 ms
Release Time	13 ms
Physical Weight (kg)	0.05
Dimensions L x W x H (cm)	5.4 x 1.5 x 8.6

Industrial Applications

1. Industrial Machine Control

This relay module is ideal for industrial control panels, interfacing low-power control signals from a PLC or controller to switch higher-power loads such as motor starters or solenoid valves. Its compact DIN-rail mountable design fits well into crowded control cabinets.

Problem Solved

Provides electrical isolation and signal amplification, allowing a 110 VDC control signal to safely switch higher current (8 A) and voltage (250 VAC) loads, protecting sensitive control electronics.

PLC interfacemotor controlsolenoid valvesignal amplificationelectrical isolationDIN-rail mounting110VDC control250VAC switching

2. Building Automation Systems (Lighting/HVAC)

Suitable for building automation systems where a central building management system generates 110 VDC control signals to manage lighting circuits, HVAC dampers, or other facility equipment. The DPDT contacts enable flexible control over multiple aspects.

Problem Solved

Enables reliable switching of moderate AC loads (up to 2000 VA, 8A at 250VAC) in response to DC control inputs from building management systems, contributing to efficient energy management and environmental control.

Lighting controlHVAC controlbuilding management systemDPDT switching2000VA load110VDC inputfacility automation

3. Process Control and Instrumentation (Signal Interfacing)

Can be used in process control environments for signal interfacing, routing, or controlling auxiliary equipment based on 110 VDC logic from various instruments or safety systems. Its fast response times are crucial for timely operations.

Problem Solved

Offers robust and fast switching (8ms operate, 13ms release time) for critical signal routing and control in process automation, operating reliably across a wide ambient temperature range (-40°C to +70°C).

Process controlinstrumentationsignal routingactuator controlsafety systemsfast switchingwide temperature rangeauxiliary equipment control