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Hitachi

Hitachi Industrial Components & Equipment

Air Circuit Breakers : Internal configuration

Terms
(1) Arc chute (10) Trip coil
(2) Aux. switch control terminal (11) Closing coil
(3) Control power supply terminal (12) Motor Ass'y
(4) Trip relay control terminal (13) Aux. switch
(5) Carrying grip (14) ON button
(6) Trip coil or UVT coil (15) OFF button
(7) Mechanism (16) MTD base
(8) Main body (17) Trip relay
(9) Counter (18) Front cover

Air Circuit Breakers : Internal configuration

Terms
(1) Control circuit terminal block (11) Draw-in/out device
(2) Control terminal (12) Arc extinguishing part
(3) Auxiliary switches (13) Moving contact
(4) Closing, Trip, UVT coil (14) Fixed contact
(5) Trip relay (15) Conductor on line side
(6) Front cover (16) Cradle nger
(7) Mechanism (17) Cradle
(8) Charge handle (18) Connecting conductor
(9) Trip spring (19) Power supply CT
(10) Closing spring (20) Conductor on load side

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