Safety Monitoring Relay with Time Delay (SCR-4-TD)
The SCR-4-TD internal logic uses force guided relays to achieve cross monitoring, ensuring single faults are detected at or before the next demand upon the safety function. The SCR-4 features both standard and delayed outputs in a variety of configurations.
Configurations Available: SCR-4-TD-1 with Instant 3NC and Delayed 1NC / SCR-4-TD-2 with Instant 2NC and Delayed 2NC / SCR-4-TD-3 with Instant 1NC and Delayed 3NC
• Delayed Output Timer (0-30 secs)
• Dual Channel Safety Inputs
• Up to PLe, SIL 3, Category 4
| Relays | 180005 | SCR-4-TD1 24V – std screw terminals |
| Relays | 180005-P | SCR-4-TD1 24V – pluggable screw terminals |
| Relays | 180006 | SCR-4-TD2 24V – std screw terminals |
| Relays | 180006-P | SCR-4-TD2 24V – pluggable screw terminals |
| Relays | 180007 | SCR-4-TD3 24V – std screw terminals |
| Relays | 180007-P | SCR-4-TD3 24V – pluggable screw terminals |
