HFT300 frequency test relay is widely used in marine genset field and land genset field.

The corresponding over/under frequency relay outputs and alarm protection activates when the frequency has exceeded/fallen below the set value.

1. Suitable for 3-phase 4-wire, 3-phase 3-wire, single phase 2-wire, and 2-phase 3-wire systems with frequency 50/60/400Hz;
2. Over/under frequency protection function;
3. Adjustable potentiometer allows for set value adjusting and delay value setting;
relay output;
4. One test button, test the over/under frequency relay and indicator;
5. Widely power supply range DC(8~35)V, suitable to different starting battery voltage environment;
6. 35mm guide rail mounting;
7. Modular design, pluggable terminal, compact structure with easy installation.

Why SmartGen?

  • More than 200,000 units yearly
  •  19 years of successful business
  • More than 50 offices worldwide
  • Almost 200 technology patents
  • ISO, GM and CCSR certificates
  • High quality and low prices
  •  Wide variety of generator parts