Specifications

Presence Sensing Safety Devices
PAC Type 4 Safety Light Curtains
2-65
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Publication S117-CA001A-EN-P
GuardShield Safe 4 PAC
GeneralPrinciples
2-Opto-electronics
Safety SwitchesOperator
Interface
LogicPower
R
Product Selection
Safety Light Curtain—Standard PAC System
Required Logic Interfaces
Protected Height [mm (in.)] Number of Beams Beam Spacing Pair Weight [kg (lbs)] Cat. No.
600 (23.6) 2 500 mm 4.0 (8.8)
445L-P4S2500YD
840 (33.0) 3 400 mm 4.5 (9.9) 445L-P4S3400YD
Note: The cat. nos. listed above are pair cat. nos. designated by the "P" in the cat. no. To specify a transmitter or receiver, replace the "P" with a "T" for
transmitter and "R" for a receiver. The GuardShield Safe 4 PAC requires a 5-pin M12 cordset for the transmitter and the receiver.
Description Safety Outputs Auxiliary Outputs Terminals Reset Type Power Supply Cat. Page No. Cat. No.
Single-Function Safety Relays for 2 N.C. Contact Switch
MSR127RP 3 N.O. 1 N.C.
Removable
(Screw)
Monitored Manual 24V AC/DC 5-26
440R-N23135
MSR127TP 3 N.O. 1 N.C.
Removable
(Screw)
Auto./Manual 24V AC/DC 5-26
440R-N23132
MSR126 2 N.O. None Fixed Auto./Manual 24V AC/DC 5-24
440R-N23117
Modular Safety Relays
MSR210P Base
2 N.C. only
2 N.O.
1 N.C. and 2 PNP
Solid State
Removable
Auto./Manual or
Monitored Manual
24V DC from the
base unit
5-82
440R-H23176
MSR220P Input
Module
— — Removable — 24V DC 5-86
440R-H23178
MSR310P Base
MSR300 Series
Output Modules
3 PNP Solid State Removable
Auto./Manual
Monitored Manual
24V DC 5-102
440R-W23219
MSR320P Input
Module
— 2 PNP Solid State Removable —
24V DC from the
base unit
5-106
440R-W23218
Muting Modules
MSR22LM 2 N.O. 1 N.C. Removable Auto./Manual 24V DC 5-48
440R-P23071
MSR42 (requires
optical interface to
configure
445L-AF6150
2 PNP
2 PNP,
configurable
Removable
Auto./manual or
manual monitored
24V DC 5-52
440R-P226AGS-NNR
Note: The use of a category 4 safety relay module does not improve the category rating of the safety system beyond the Category 2 rating of the Type 2 light
curtain in use.
The Allen-Bradley Guardmaster GuardShield Safe 4 PAC safety light curtains are offered with two or three modules with various spacing for
whole body detection. These are ordered as pairs (transmitter and receiver) and are shipped under one catalog number. Each GuardShield
Safe 4 PAC pair is shipped with mounting brackets. After selecting the appropriate Safe 4 PAC, ensure that the appropriate cordsets,
interfaces and accessories are ordered.