Allen-Bradley 440G-MZS20UNLJE Guardmaster Guardlock Switch
Guardmaster Guardlock Switch, 24V DC, power-to-lock solenoid, RFID unique coded actuator, 2 x PNP safety outputs, 2500 N holding force, escape release, 5-pin M12 QD pigtail
Lifecycle Status: Active
The Allen-Bradley 440G-MZS20UNLJE Guardmaster guardlock switch is designed for full-body access guard door applications that require monitored guard locking, high holding force, and integrated escape release capability. It supports use as a standalone OSSD safety device or as part of a GuardLink system for machine safety architectures with enhanced diagnostics.
Lifecycle Status: Active
- Guardmaster 440G-MZ guard locking safety switch
- 24V DC solenoid-operated model
- Power-to-lock configuration
- RFID unique coded actuator
- Escape release version
- 2 x PNP safety outputs, 0.2 A max, ON (+24V DC)
- 5-pin M12 quick-disconnect pigtail connection
- Holding force Fzh: 2500 N
- Maximum holding force Fmax: 3250 N
- Locking bolt alignment tolerance: X, Y, Z ±5 mm max
- Mechanical life: 500,000 cycles
- Ingress ratings: IP65, IP66, IP67, IP69, IP69K
- Operating temperature: 0…55 °C
- Operating humidity: 5…95%, noncondensing
- Supports standalone connection or GuardLink system integration
This switch is suited to perimeter guarding, packaging machinery, robotic cells, bottling equipment, and other safeguarded access points where personnel protection and controlled guard unlocking are required. Embedded GuardLink capability supports streamlined wiring and improved device-level diagnostics in connected safety systems.