Service
Manual
Description
Each relay consists of:
• A casing in two halves, containing six normally-
open and/or normally-closed contacts. The two
halves are held together by spring clips.
• A moving contact carrier containing moving
contacts.
• A soleniod, with coil and core.
• (Optionally) an auxiliary contact block, for
increasing the number of contacts.
The magnetic core is split, with the upper part, which
carries the moving contact block, being spring-
secured.
The fixed, lower portion of the core carries shading
windings which modify the phase of the flux trough
the core, so that it never reduces to zero, eliminating
50/60 Hz hum.
Moving contact
Spring clip
9406
25. Relay
Shading winding
Auxiliary contact block
Moving contact block
Fixed contact
Coil
Magnetic core
25
Spring clip
G016
1