User's Manual
Table Of Contents
- Table of Contents
 - Preface
 - Product Overview
 - Safety Concept
 - Installation
 - Wiring and System Integration
 - Commission the Safety Switch
 - Device Status and Troubleshooting
 - Application Examples
 - Specifications
 - Index
 
Rockwell Automation Publication 440G-UM004C-EN-P - August 2020 51
Appendix A
Specifications
This appendix provides the specifications and safety ratings for the 440G-MZ 
safety switch.
Safety Ratings
Operating Characteristics
Attribute Value
Standards  IEC 60947-5-3, IEC 61508, ISO 13849-1, IEC 62061, ISO 14119, UL 508
Safety classification
Type 4 interlocking device with guard locking per ISO 14119 with low (standard) and high (unique) 
coding per ISO 14119
Suitable for use in applications up to and including PLe Cat 4 per ISO 13849-1, SIL CL 3 per IEC 62061, 
and SIL 3 per IEC 61508
Functional safety
• OSSD mode 
(1)
Proof test interval = 20 years
PFHd = 3.17E-09
PFD = 3.67E-04
• GuardLink® mode
(2)
Proof test interval = 20 years
PFHd = 2.93E-09
PFD = 3.59E-04
(1) This data is given for the 440G-MZ safety switch when used in OSSD mode (connected to a safety I/O or safety logic device).
(2) This data is given for the 440G-MZ safety switch when used in a GuardLink safety system.
Certifications  CE Marked for all applicable EU directives, c-UL-us, TÜV
Attribute Value
Torque for M5 mounting of switch and actuator 
mounting bracket
2 N•m (17.7 lb•in) max
Locking bolt alignment tolerance X, Y, Z ±5 mm (0.2 in.) max
Holding force F
max 
(ISO 14119)
3250 N
Holding force F
zh
 (ISO 14119) 
2500 N
Output current, max (each output)  200 mA
Quiescent power consumption, locked or unlocked 1.5 W
Lock signal current 1 mA
Peak current and duration, at turn on or after lock/
unlock operation
150 mA for approximately 800 ms following lock/unlock operation.
Steady state current, max
•OSSD mode: 40 mA
• GuardLink mode: 50 mA
Operating voltage Ue 24V DC +10% / -15% Class 2 PELV 
Operating cycle frequency, max 0.2 Hz 
Dwell time between subsequent locking/unlocking  2.5 s
Response time (Off) (IEC 60947-5-3) 275 ms
Start up time (availability) 8 s
Utilization category (IEC 60947-5-2) DC-13 24V 200 mA
Insulation voltage U
i
 (IEC 60947-5-1)
75V
Impulse withstand voltage U
imp
 (IEC 60947-5-1)
1 kV
Pollution degree (IEC 60947-5-1) 3
Auxiliary release Built in
Protection class (IEC 61140) Class II
Mechanical life 500,000 cycles










