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ALLEN-BRADLEY

SINGLE-FUNCTION SAFETY RELAY A-B/ GUARDMASTER

440R-B23020
2065381

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The ALLEN-BRADLEY 440R-B23020 is a safety relay that provides monitored safety switching for machinery control applications. Designed for 24V AC/DC systems, this MSR5T fixed relay features automatic and manual modes in a compact 22.5 mm housing, with a 0.5 second timing element to manage safe stop sequencing. It accepts one 2 N.C. input and delivers three safety outputs plus one N.C. relay output, enabling separation of safety contacts and control circuits. CAT 3 rated for safety integrity, it suits control panels and machine safety circuits where a compact, certified safety relay is required for risk reduction and reliable start/stop sequencing.
allen-bradley-440R-B23020
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Product Overview

Product ID:
2065381
Manufacturer Part Number:
440R-B23020
EAN:
10611320169246
Brand/Manufacturer
ALLEN-BRADLEY
Unit of Measure:
PCS

Specification

Depth:
99 mm
Evaluation inputs:
1-channel
Height:
75 mm
Model:
Basic device
Number of outputs, safety related, delayed, semiconductors:
0
Number of outputs, safety related, delayed, with contact:
0
Number of outputs, safety related, undelayed, semiconductors:
0
Number of outputs, safety related, undelayed, with contact:
4
Number of outputs, signalling function, delayed, semiconductors:
0
Number of outputs, signalling function, delayed, with contact:
0
Number of outputs, signalling function, undelayed, semiconductors:
0
Number of outputs, signalling function, undelayed, with contact:
1
Performance level according to EN ISO 13849-1:
Level e
SIL according to IEC 61508:
3
Stop category according to IEC 60204:
1
Suitable for monitoring of emergency-stop circuits:
yes
Suitable for monitoring of magnetic switches:
no
Suitable for monitoring of optoelectronic protection equipment:
no
Suitable for monitoring of position switches:
no
Suitable for monitoring of proximity switches:
no
Suitable for monitoring of tactile sensors:
no
Suitable for monitoring of valves:
no
Suitable for rail mounting:
yes
Supply voltage AC 50 Hz:
24...24 V
Supply voltage AC 60 Hz:
24...24 V
Supply voltage DC:
24...24 V
Type of electric connection:
Screw connection
Voltage type (supply voltage):
AC/DC
Width:
22.5 mm
With approval according to UL:
yes
With detachable clamps:
no
With feedback circuit:
yes
With muting function:
no
With start input:
yes

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SINGLE-FUNCTION SAFETY RELAY A-B/ GUARDMASTER product photo
ALLEN-BRADLEY
SINGLE-FUNCTION SAFETY RELAY A-B/ GUARDMASTER
MPN Part #: 440R-B23020
Product ID: 2065381
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