The Low Voltage Alarm Relay measures DC battery or power supply voltage and de-energises the internal relay (used to switch warning leds or buzzers and provide remote signalling) if it falls below a pre-set (adjustable) level.

The Alarm Relay draws less than 2 watts and it's primary duty is to provide a warning in the event of partial or complete battery discharge or a low voltage output on a power supply.

On-board healthy and failure leds illuminate through windows in the rear printed 3M product label. The alarm includes a double pole double throw volt free relay rated at 3A @ 230VAC or 30VDC. Connections and installation requires an 11 pin octal base which is supplied with the relay. The base can be panel or din rail mounted.

A small removable plug in the side of the enclosure (not shown in picture) provides easy access for adjustment of the low voltage alarm setting using a small flat bladed screwdriver.

Low Voltage Alarm Relay is available in 6, 12, 24, 30, 48, 60 or 110VDC versions, just message us with the voltage version and preferred setting you require when you order. Higher voltage models can be manufactured to order.

A digital 60 second relay de-energisation delay time (adjustable up to 3 minutes as standard) is included so you can monitor batteries without getting a false alarm during engine cranking or switch tripping conditions which cause short term voltage drops. Longer delays from minutes to hours can be accommodated if requested.