The 250A-MET power monitor is a replacement sensing module for older Metron M-series electric fire pump controllers. It features adjustable voltage settings covering 208 through 480 volts, so a single part serves the full range of service voltages found across M-series installations.
On these legacy controllers the power monitor supervises the incoming supply voltage; a failed monitor can leave the controller reporting false power-failure alarms or no longer registering line conditions correctly. Because the M series is an older product line, sourcing this one module can keep an otherwise healthy controller in service instead of forcing a full controller replacement.
Fits Metron M-series electric fire pump controllers — set the adjustable range to match your service voltage at installation. Veteran-owned Cybertronic Controls in Hammond, Louisiana keeps the 250A-MET in stock; call 985-351-5681 to confirm it matches your controller before ordering.