May 27, 2026

B&R 2DO600.645 Relay Module

The 2DO600.645 is a 2-channel relay output module from B&R’s 2005 series I/O system, designed for reliable switching of AC/DC loads in industrial automation. It provides electrical isolation between the control system and field devices, protecting sensitive circuits while enabling direct control of solenoids, contactors, motors, and other actuators. Compact and robust, it suits standard and harsh industrial environments.

Description

B&R 2DO600.645 Relay Module

Product Introduction

Basic Information

Model: 2DO600.645
Brand: B&R (Bernecker + Rainer, ABB Group)
Series: 2005 Series I/O Module
Product Type: Digital Output Relay Module
Number of Channels: 2 (independent)
Contact Type: Normally Open (NO)
Rated Voltage: 250 VAC / 30 VDC
Rated Current: 6 A per channel (resistive load)
Isolation: Channel-to-channel and channel-to-bus electrical isolation
Operating Temperature: 0°C to +55°C
Storage Temperature: -25°C to +70°C
Protection Class: IP20
Mounting: DIN rail or 2005 series backplane
Certifications: CE, UL/cULus, EAC

Function and Positioning

The 2DO600.645 acts as an interface between the PLC/CPU and high-power field devices. It converts low-level control signals from the automation system into high-voltage/high-current switching actions. The two independent channels allow separate control of two loads, while electrical isolation suppresses noise and prevents voltage spikes from damaging the controller. It is widely used for switching loads that require higher power than standard transistor outputs can handle.

Core Performance Parameters

Switching Voltage: Max 250 VAC, 30 VDC
Switching Current: 6 A (resistive), 3 A (inductive)
Relay Life: 100,000 operations (full load), 10,000,000 operations (mechanical)
Isolation Voltage: 2,500 VAC between channels and bus
Response Time: ≤ 10 ms (on), ≤ 5 ms (off)
Status Indicators: LED per channel (ON/OFF state)
EMC Compliance: EN 61000-6-2, EN 61000-6-4
Power Consumption: 24 VDC, approx. 40 mA (per channel)

General Compatible Accessories

B&R 2005 series backplanes (2BP series)
B&R 2005 series CPU and communication modules
24 VDC industrial power supplies (0PS105.1, 0PS205.1)
Terminal blocks and wiring kits for 2005 series
Surge suppressors (RC circuits) for inductive loads
B&R Automation Studio (V4.x and above) for configuration

Applicable Equipment Fields

Factory Automation: Conveyors, packaging machines, assembly lines
Process Control: Valves, pumps, fans, and motor control
Building Automation: HVAC systems, lighting control, access gates
Machinery: Machine tools, presses, and material handling equipment
General Industrial: Any application requiring isolated high-power switching

Contact Info