Power Fail Monitor

$95.00 Add to Cart

*** The PFM is being redesigned and this version is currently out of stock. ***
The new version of the PFM features a smaller form factor, can be used in both domestic and international applications, and will be ready to ship in November 2019.

Contact RLE directly at sales@rletech.com to reserve your PFM and receive it from our first available shipment.

The Power Fail Monitor (PFM) is a power failure sensor that detects the loss of utility power.  It provides early warning that power has been lost and that reserve power needs to be activated, and sends an alarm signal via its Form C output relay.

The unit plugs directly into a standard (USA) 120V power outlet and screws securely into the outlet to ensure that it is not accidentally disconnected.

Key Features

  • Provides early warning of power loss
  • Plugs into any standard (USA) 120V outlet
  • Provides Form C output relay upon loss of power
  • Cost-effective, reliable power fail monitor


Power Fail Monitor – Domestic (PFM)

Power: 120VAC @ 15mA

Relay Output: 1 Dry Contact, Form C; 10A @ 120VAC; 5A @ 30VDC)

Operating Environment

  • Temperature: 32°F to 122°F (0°C to 50°C)
  • Humidity: 5% to 95% RH, non-condensing
  • Altitude: 15,000ft (4,572m) max.

Storage Environment: -4°F to 158°F (-20°C to 70°C)

Dimensions: 2.375″W x 3.5″H x 2.25″D (60mmW x 89mmH x 57mmD)

Weight: 0.21 lbs. (0.01kg)

$95.00 Add to Cart