The Siemens ─ Fire Safety dual-contact zone module (Model ZN-31U) is designed to provide two (2) detector line circuits that incorporate contact-type devices. These devices may be manual boxes, waterflow switches, thermal detectors, relay contacts, etc. Each circuit provides ‘Class B’ supervision. Model ZN-31U also contains two (2) red LED Alarm lamps and two (2) yellow LED Trouble lamps ─ one of each for each circuit.
The Siemens ─ Fire Safety dual-contact zone module (Model ZN-31U) is designed to provide two (2) detector line circuits that incorporate contact-type devices. These devices may be manual boxes, waterflow switches, thermal detectors, relay contacts, etc. Each circuit provides ‘Class B’ supervision. Model ZN-31U also contains two (2) red LED Alarm lamps and two (2) yellow LED Trouble lamps ─ one of each for each circuit.
| Weight | 0.2 lbs |
|---|---|
| Manufacturer | Siemens Industry, Inc. |
| Brand | |
| Condition | New |
| Unit of Measurement | EA (Each) |
| Production Status | Discontinued |
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| Weight | 0.2 lbs |
|---|---|
| Manufacturer | Siemens Industry, Inc. |
| Brand | |
| Condition | New |
| Unit of Measurement | EA (Each) |
| Production Status | Discontinued |
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