Specifications

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Publication S117-CA001A-EN-P
Presence Sensing Safety Devices
Safety Light Curtain Interfaces
2-79
120V AC Power Supply and Safety Relay
GeneralPrinciples
2-Opto-electronics
Safety SwitchesOperator
Interface
LogicPower
R
Description
Specifications
Safety Ratings
Safety Classification Nonsafety Rated
Power Supply
Input Power, Max. 120/230V AC
Power Consumption 2 W/4 W
Outputs
Safety Outputs 2 N.O. or 4 N.O.
Auxiliary Outputs 1 N.C. or 2 N.C. Nonsafety
Switching Current @ Voltage,
Min.
10 mA @ 10V
Operating Characteristics
Response Time 15 ms
Status Indicators
Power = Green
K1 = Green if Closed.
K2 = Green if Closed.
Recovery Time 100 ms
Electrical Life
222V AC/4 A/880V A cosφ = 0.35 - 100,000
operations
Mechanical Life 2,000,000 operations
Operating Frequency 1200 cycles/hour, max.
Environmental
Enclosure Type Rating IP65 (NEMA 4)
Relative Humidity 90%
Operating Temperature [C (F)] -5…55° (23…131°)
Vibration 0.35 mm, 10…55 Hz
Shock 10 g, 16 ms, 100 shocks
Physical Characteristics
Weight [kg (lb)]
440L-M8400: 4.87 (10.75)
440L-M8500: /5.1 (11.25)
Product Selection
Safety Outputs Auxiliary Outputs
Power Supply
Output Cat. No.
2 N.O. 1 N.C. nonsafety 120V AC/230V DC
440L-M8400
4 N.O. 2 N.C. nonsafety 120V AC/230V DC
440L-M8500
200.0 (7.87)
161.9 (6.37)
63.5 (2.5)
22.2 (0.87)
1.77
(0.07)
3.17
(0.12)
104.7
(4.12)
301.6
(11.87)
The Allen-Bradley Guardmaster 120V AC interface box consists of a
NEMA 4 rated lockable metal enclosure, a DIN mount 3 A, 24V DC
power supply and either a single or dual 22.5 mm safety relay(s).
The single safety relay module provides three N.O. safety and one
N.C. auxiliary (nonsafety) “potential free” relay outputs. The dual
safety relay configuration allows two pairs of safety light curtains to
independently control one or two machines.
The safety relay(s) can be configured for manual reset or automatic
reset. The resetting function can be through the key switch mounted
on the front cover of the interface box.
Pre-punched holes located on the bottom of the enclosure allow for
easy wiring of the system.
Dimensions are shown in mm (in.). Dimensions are not intended to
be used for installation purposes.
Approximate Dimensions