Safety Monitoring Relays with Time Delay. Various output configurations (see below)
IDEM’s SCR-4-TD range are all purpose safety monitoring relays that combine time delayed and non time delayed contacts in a compact 22.5mm housing.
This permits dangerous components of a system to be switched off quickly and safely, whilst at the same time other circuits are still supplied with voltage for up to 30 seconds (adjusted on the SCR-4-TD by a potentiometer).
If the application requires time delayed opening of a safety circuit following activation of the stop signal then the SCR-4-TD range will provide combination of instant and variable delayed contacts.
This may be useful for applications that rely on PLC control to provide an initial controlled shutdown but ultimately requires a delayed opening of safety circuit.
| Featuring | |
| Force Guided Safety output Contacts: | |
| Standards: EN60204-1, EN954-1, ISO13849-1, EN62061. | |
| Stop Category: 0 (non time delayed) 1 (time delayed). | |
| Up to Category 4 to EN954-1. | |
| Up to PLe to ISO13849-1. | |
| SILCL 3 EN62061. | |
| Single or Dual Channel input with LED indication of input status. | |
| Redundancy cycle monitoring. | |
| Feedback loop for monitoring contactors or expansion modules. | |
| Short circuit and earth fault monitoring. | |
| 22mm Din Rail Mounting. | |
| FOR PRODUCT DATA SHEET, CATALOGUE PAGE FOR FURTHER INFORMATION AND SALES/PART NUMBER OR TO REQUEST CAD DRAWING PLEASE CLICK ON THE RELEVANT DOWNLOAD BUTTON. | |
| Variants 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 | |