Thermal overload relays can be used in the circuit of 50Hz or 60Hz, rated insulation voltage 660V, rated current 0.1-93A for protecting the phase brick when the electric motor is overload. The relay has a different mechanism and temperature compensation. It is the most advanced thermal relay in the nineties in the world. The products comply with IEC60947-4.

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1.The fundamental parameter of the main circuit

(a)Rated insulation voltage 660V

(b)Rated working current 25、35、93A separately

(c)The regulator seal of rated setting current

(d)Current of the thermal component

2.Auxiliary Circuit

(a)There is one pair of N/O and N/C contact with electric insulation

(b)Rated insulation voltage 550V

(C)Rated frequency 50-60Hz


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