Thermal overload relay

Details Thermal overload relay Thermal overload relay

1988-07-06

1990-03-13

Broome, H.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337 45, H01H 7116

Patent

active

049085948

ABSTRACT:
A thermal overload relay comprising a change-over spring mechanism and a contact mechanism that is separated from the spring mechanism. The contact mechanism is actuated by the spring mechanism, which is driven by a bimetallic strip when an overcurrent flows through the strip. The spring mechanism has no electrically conducting portion. The change-over point of the spring mechanism varies only a little, thus enhancing the reliability. The spring mechanism is easy to assemble and adjust.

REFERENCES:
patent: 4652847 (1987-03-01), Sako

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