Siemens G31930-W2228-B230 Relay Output Module

The G31930-W2228-B230 switches AC and DC loads through isolated relay contacts. This module provides robust output switching for Siemens control systems. You can rely on it for motor starters, valves, and lighting applications.

Key Technical Parameters

The table below lists all essential technical specifications for this relay output module.

Specification	Details
Part Number	G31930-W2228-B230
Product Type	Relay Output Module
Compatibility	Siemens SIMATIC S5 series
Number of Outputs	8 relay outputs
Output Type	Form A (normally open)
Switching Voltage (AC)	250V AC maximum
Switching Voltage (DC)	30V DC maximum
Output Current (AC)	2 A per channel (resistive)
Output Current (DC)	2 A per channel (resistive)
Inrush Current	5 A for 10 ms
Coil Voltage	24V DC (internal)
Dimensions (W x H x D)	250 mm x 25 mm x 210 mm
Weight	Approx. 0.65 kg
Terminal Type	Screw terminal block
Power Supply	5V DC from backplane + 24V DC external
Current Consumption	150 mA (logic) + 240 mA (relay coils)
Operating Temperature	0°C to 55°C

Physical Characteristics and Installation

This relay output module weighs approximately 0.65 kg for standard rack mounting. Its dimensions measure 250 mm x 25 mm x 210 mm for S5 single-width slots. First, slide the G31930-W2228-B230 into a free I/O rack position. Then, connect your loads to the screw terminals. Finally, secure the module using the top and bottom locking screws. LED indicators on the front show the status of every relay channel.

Relay Specifications and Switching Ratings

The G31930-W2228-B230 provides 8 form A (normally open) relays for load control. Each relay switches 250V AC or 30V DC maximum. The continuous current rating reaches 2 A per channel for resistive loads. Inrush current handling goes up to 5 A for 10 milliseconds. Mechanical life exceeds 10 million operations. Electrical life reaches 100,000 operations at rated load.

Power Requirements and Isolation

This module draws 150 mA from the 5V DC backplane for logic circuits. The relay coils require an external 24V DC supply drawing 240 mA when fully active. Coil-to-contact isolation exceeds 1500V AC for safety. Channel-to-channel isolation prevents cross-talk between outputs. The G31930-W2228-B230 suits mixed AC/DC load applications.