Precision Calibration: Factory-set trip points offer accurate response times compared to generic universal alternatives

and circulator blower

or emergency operation during power loss

It indicates that the electrical contacts will close (connecting the circuit) when the negative pressure (vacuum) reaches the specified setpoint of -

Can this be used on oil-fired equipment

Copeland 998-0520-00 Motor Protector 30067439-890 Precision Calibration: Factory-set trip pointsThe Copeland 998 0520 00 Motor Protector is a critical 120V electronic safety module designed to safeguard high performance compressors from thermal overload and electrical faults. As a veteran grade HVAC compressor protection device, this unit effectively monitors motor winding temperatures and interrupts the control circuit during excessive current or short circuit events. This specific Copeland 120V motor protector is the designated replacement for