WAGO 788-312 DPDT Power Relay Module 24VDC 8A

Technical Overview

Compact 24VDC DPDT power relay module with 8A continuous current, Push-in CAGE CLAMP® terminals, and DIN-rail mounting for industrial control. IP20 rated.

Key Features

2 changeover contacts (DPDT)
Nominal input voltage: 24 VDC
Limiting continuous current: 8 A
Red status indicator
DIN-35 rail mounting
Push-in CAGE CLAMP® connection technology
Safe electrical isolation in accordance with DIN VDE 0140 part 1
Silver nickel contacts (AgNi 90/10)
IP20 protection rating
Compact module width of 15 mm

Technical Specification Matrix

Parameter	Value
Contact Configuration	DPDT (2 Changeover Contacts)
Nominal Input Voltage	24 VDC
Limiting Continuous Current	8 A
Max. Make Current (4s)	15 A (AC)
Contact Voltage VAC	250 V
Relay Mounting	DIN Rail (DIN 35)
Coil Type	Non Latching
Relay Terminals	Push-in CAGE CLAMP®
Contact Material	Silver Nickel (AgNi 90/10)
IP Rating	IP20
Solid Conductor Size	0.34 … 2.5 mm² / 22 … 14 AWG
Fine-stranded Conductor Size	0.34 … 2.5 mm² / 22 … 14 AWG
Strip Length	9 … 10 mm / 0.35 … 0.39 inches
Nominal Input Current	19.1 mA
Operating Power (typ.)	400 mW
Pull-in Time (typ.)	8 ms
Drop-out Time (typ.)	6 ms
Mechanical Life	30 x 10^6 switching operations
Dielectric Strength, Contact-Coil (AC, 1 min)	5 kVrms
Dielectric Strength, Open Contact (AC, 1 min)	1 kVrms
Physical Weight (kg)	0.05
Dimensions L x W x H (cm)	5.4 x 1.5 x 8.6

Industrial Applications

1. Industrial Control Panel Interfacing

The WAGO 788-312 provides a robust interface for industrial control panels, enabling reliable switching and electrical isolation between low-voltage control signals from PLCs or sensors and higher-power field devices or actuators. Its compact design saves valuable panel space.

Problem Solved

Ensures safe and reliable operation by isolating sensitive control electronics from power circuits and managing diverse voltage/current requirements, simplifying complex wiring within control cabinets.

PLC interfacingSignal isolationControl panelDIN-rail mounting24VDC controlDPDT switching

2. Small Motor and Solenoid Control in Automated Machinery

Ideal for controlling small DC motors or solenoids in automated machinery, this relay module offers a durable switching solution. Its DPDT contacts and 8A continuous current rating, combined with a high mechanical life, ensure consistent performance in repetitive automation tasks.

Problem Solved

Provides precise and reliable control over small inductive loads like motors and solenoids, crucial for repeatable machine movements and process automation, while offering extended operational lifespan.

Automated machinerySolenoid controlSmall motor switching24VDCDPDT contactsHigh-cycle operations

3. Building Automation System for Lighting and HVAC Actuators

Suitable for building automation systems, the 788-312 can switch various low-to-medium power loads such as lighting circuits, small fans, or HVAC damper actuators. Its 24 VDC control voltage and 250 VAC contact rating align with typical building management system requirements, with an IP20 rating for enclosed cabinet installation.

Problem Solved

Facilitates reliable switching of building infrastructure components by interfacing 24VDC control signals with AC or DC loads, ensuring energy efficiency and occupant comfort through automated control.

Building automationHVAC controlLighting control24VDC250VAC switchingElectrical isolation