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Isolating Base, Xpert Style – 45681-284IMC (UL Listed)
The Isolating Base senses and detects short-circuit faults on the addressable loops and spurs.
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Overview
Product Details
The Isolating Base, Xpert Style – 45681-284IMC (UL Listed) is part of the Analogue Addressable Fire Detectors range from Context Plus, supplied and supported by SPS. The Isolating Base senses and detects short-circuit faults on the addressable loops and spurs.
Specifications & features
- The Isolating Base senses and detects short-circuit faults on the addressable loops and spurs.
- Designed to sense and isolate short-circuits on Context Plus addressable loops, the Context Plus Negative Switching Isolating base can be used in place of standard bases.
- Under normal operating conditions the isolating circuit provides a low resistance of 0.2 ohm in either direction.
- If the loop voltage falls to 14±0.4V the isolator will switch from the closed state to the open state in order to isolate the loop ‘in’ and ‘out’ lines.
- The isolated section is tested every four seconds and is automatically re- connected when the load resistance is 175 or greater.
- Up to 20 detectors or the equivalent load may be connected between two isolating circuits.
- Interfaces and sounders are counted as one detector for every milliampere of switch-on surge current.
- A Yellow LED illuminates if a short-circuit is detected either side of the isolator.
- When the short-circuit is removed, the power will automatically be restored.
