Frequently asked questions
How many smoke alarms can be connected to a single 756 isolation unit?
FA285512
22 October 2025
Max of 40 smoke alarms can be connected to a single 756.Key Features
- Changeover Contacts: 1xNormally Open (N.O.), 1xNormally Closed (N.C.)
- Contact Rating: 10 A resistive and inductive, 250 V AC, 50 Hz
- Interconnection Input: 6 V to 10V DC. referenced to Neutral
- Supply Current: Alarm mode - 1mA minimum. Non-alarm mode (standby)
- Maximum number of smoke alarms interconnected to a single 756 Isolation Unit: 40
- Switching Delay: 20 seconds
- Cables Accommodated: 2 x 2.5 mmsq
Please go to the following links below and check under the Documentation Tab for more information.
Australia - https://www.clipsal.com/products/detail?CatNo=756&itemno=756&backto=/search?q=756&tab-document-1=0
New Zealand - https://www.pdl.co.nz/products/detail?CatNo=756&itemno=756&backto=/search?q=756