WAGO 788-313 DPDT Relay Module 48VDC

Technical Overview

48VDC DPDT relay module with 8A continuous current, DIN-rail mount, IP20, and Push-in CAGE CLAMP connections.

Key Features

Nominal input voltage: 48 VDC
2 changeover contacts (DPDT - Double Pole Double Throw)
Limiting continuous current: 8 A
Red status indicator
DIN-rail mountable (15 mm width)
Push-in CAGE CLAMP connections
Electromechanical design
Silver-Nickel (AgNi) contacts
IP20 degree of protection
Operating temperature range: -25 °C to 50 °C
Coil Current: 11 mA
Coil Power: 528 mW
Contact Voltage Rating (AC): 250 V

Technical Specification Matrix

Parameter	Value
Nominal Input Voltage	48 VDC
Number of Changeover Contacts	2 (DPDT)
Limiting Continuous Current	8 A
Contact Current Rating (AC-15)	3 A (250 VAC)
Contact Current Rating (DC-13)	2 A (24 VDC)
Contact Voltage Rating (AC)	250 V
Coil Current	11 mA
Coil Power	528 mW
Coil Resistance	4.36364 kΩ
Electrical Life	1 kcycles
Release Time	16 ms
Response Time	18 ms
Operating Temperature	-25 °C to 50 °C
Degree of Protection (IP)	IP20
Mounting Type	DIN Rail
Contact Material	Silver Nickel (AgNi)
Connection Type	Push-in CAGE CLAMP connections
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 Signal Routing

This relay can be used in industrial control panels for switching low-power control signals (e.g., 24VDC PLC outputs) to higher-power loads or different voltage domains (e.g., 230VAC motor starters, indicator lights).

Problem Solved

It provides electrical isolation and signal conversion, allowing a 48VDC control system to safely interface with different voltage levels and current requirements, protecting sensitive control equipment from load disturbances. The DPDT contacts offer flexibility for switching multiple circuits simultaneously.

Electrical isolationsignal conversionDPDT48VDC control250VAC loadindustrial automation

2. Machine Safety Interlock Systems

Integrating this relay into machine safety circuits to switch auxiliary contacts based on safety controller outputs. For instance, when a safety gate is closed, a 48VDC signal activates the relay, which then enables machine operation through its 8A, 250V AC/DC contacts.

Problem Solved

The DPDT contacts can provide redundant feedback or control signals, enhancing the reliability of safety interlock. Its compact DIN-rail mountable design (15mm width) allows for efficient use of space in crowded safety control cabinets. The IP20 rating is suitable for typical cabinet environments.

Safety interlockmachine guardingDPDT relay48VDC safety output8A switchingDIN-rail mountingIP20

3. HVAC/Building Automation System Actuator Control

Employing the relay for controlling heating elements, ventilation fans, or damper actuators within a building automation system. A 48VDC signal from the building management controller can activate the relay to switch 230VAC power to these components.

Problem Solved

It efficiently handles the interface between low-voltage DC control signals from building automation controllers and higher-voltage AC power demands of HVAC equipment. The 8A continuous current rating is sufficient for many smaller actuators and fans, and the wide operating temperature range (-25°C to 50°C) allows for use in various indoor plant room environments.

HVAC controlbuilding automation48VDC input250VAC outputactuator controlDPDTtemperature range