Smart electronic board for wired power off call sensor

First, the product features:

The power-off sensor outputs a normally open, normally closed switch signal when any phase of phase A, phase B, or phase C in the three-phase alternating current is detected to be powered off or the utility grid is powered off. Applicable to communications machine rooms, hospitals, power supply, customs, banks, government agencies, factories and mines and other industries. Customized smart phone or GSM SMS remote notification of the caller's power failure alarm.

Second, technical performance:

1. Alarm mode: When the power-off sensor detects that any one of the A phase, B phase and C phase in the three-phase AC power is cut off or the 220V power grid is cut off, the normally open and normally closed switching signals are output respectively.

2. Monitoring voltage: AC380V ± 20%, AC220V ± 20%, 380V three-phase three-wire system needs to be customized.

3. High voltage isolation: The insulation voltage between the detection terminal and the trigger terminal is greater than 1500V.

4. Flame-retardant and explosion-proof: It is made of semiconductor non-contact switch components. When the switch is turned on and off, there will be no sparking phenomenon of the relay switch. It can be used in the occasion of flame retardant and explosion-proof.

4. Safe and reliable: no heating elements, long-term high temperature, high voltage work will not appear temperature rise phenomenon, there will be no danger of the shell of the relay switch feeling hot.

5. working environment: temperature -30 ° C ~ +90 ° C, relative humidity ≤ 90% RH.

7. Volume: 86*36*58mm.