Details
The S451 is an interface relay that sits between a detector and an intruder alarm control panel to filter off occasional trips caused by the environment such as wildlife, and provide a momentary output when the alarm criteria are met. eg. 3 trips in a 30 second window.
The S451 can monitor either a normally closed, (open to alarm), or normally open, (close to alarm), contact. The momentary output is fixed at 2 seconds so it can be detected by most alarm equipment. As the S451 doesn't latch, it never requires resetting.
- Screw terminals for easy connection
- Six mounting holes provided for more permanent fixing
Dimensions - L80mm x W74mm x D16mm
Delivery Information
We offer UK Next Day and UK 2-3 Day shipping options on all stock products with Free UK Shipping on orders over 100 GBP before tax.
International delivery rates vary by country.
Please visit our Delivery Information
page for a full explanation of our shipping arrangements.
