Overload relay to be combined with contactors

Details Overload relay to be combined with contactors Overload relay to be combined with contactors

1993-10-14

1996-01-09

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Multiple contact type

335202, H01H 6702

Patent

active

054832128

ABSTRACT:
An overload relay comprising three modules, each enclosed in molded housings: the basic unit, the contactor-side terminal block and the load-side terminal block. Both terminal blocks have phase connectors which can be the same or different in terms of their type of connection and/or their clearance between phases and/or their phase height. The terminal blocks can be mechanically and electrically detachably connected to the basic unit. At least the basic unit or the terminal blocks have means for fastening to a mounting plate. In an additional solution, the terminal blocks are part of a series which is compatible with at least two different contactors. A typical field of application for the invention is the protection of electric motors.

REFERENCES:
patent: 4006440 (1977-02-01), Burton et al.
patent: 5159304 (1992-10-01), Yamagata et al.
Siemens Katalog NS 2, Schalten & Uberwachen, Niederspannungs-Schaltgerate und Systeme, pp. 4/2, 13 and 11/7, 8, 23.
Klockner-Moeller-Post, No. 89, Apr. 1976, pp. 27-32.

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