ABB SPAF140 C Frequency Relay Type SPAF140C-AA Revision A

The frequency relay SPAF 140 C is designed to be used for the overfrequency/underfrequency protection of generators, motors and other ac equipment. For instance, even a small deviation from the rated frequency may cause mechanical damage to a generator set.

The power supply and I/O module of the frequency relay SPAF 140 C is located behind the system panel of the relay. The module can be withdrawn after removal of the system panel.

Rated voltage Un (programmable) :- 100 V (110 V, 115 V, 120 V)

Rated voltage :- 250 V ac/dc

Terminal numbers :- 10-11, 22-23, 45-46, 47-48

External control voltage :- 18...250 V dc or 80...250 V ac

Service temperature range :- -10... +55°C

Transport and storage temperature range :- -40...+70°C

Temperature influence ±0.05%  frequency measurement in the range -10°C…+55°C

Relative humidity :- 93...95%, +55°C, 6 cycles

mounting relay case :- IP54