Allen Bradley Guardmaster 440K Safety Interlock Switch, 2NC/1NO, Tongue Actuator Included, Metal
TF:
004035-HW-ALLEN-O35
Overview
Designed to provide a time delay after machine switch off prior to the guard being able to be opened When the thumb wheel is manually rotated the interlock shaft is withdrawn, isolating the positive break safety contacts, removing the power to machinery
| Lock Style | Tongue |
| Normal State Configuration | 2NC/1NO |
| Lock Type | Interlock |
| Actuator Included | Yes |
| Safety Contacts | 2NC |
| Maximum AC Voltage | 600V |
| Maximum DC Voltage | 600V |
| Connection Type | M20 |
| Housing Material | Metal |
| Range | Centurion |
| IP Rating | IP66 |
| Number of Head Directions | 1 |
| Series | 440K |
| Depth | 98mm |
| Maximum Current | 6A |
| Length | 64mm |
| Maximum Operating Temperature | +80°C |
| Width | 40.5mm |
| Minimum Operating Temperature | -25°C |
| Auxiliary Contacts | 1NO |
This 440K-B04026 guard locking switch is positive mode and thumbwheel operated, and is ideally suited for use with simple machines which have short, constant run-down times due to the 20 second delay before the guard door can be opened. It is important that the unit is installed and operated correctly to ensure that the retractable shaft is not extended when the guard is open.