65A7320H01
2 of 41
PLEASE READ
These instructions are provided so that an OEM can officially convert a
W-VACiMB Mining Breaker to an approved secondary variation. This
variation is required for some OEM’s for them to be in compliance with
end customer needs. The OEM is authorized to do the conversion per
this process and to still have the proper warranty protection.
This procedure is intended to show the necessary steps to remove the
standard secondary connector and replace it with a Push-On type
terminal block that contains the following connections (Refer to Figure
29):
o Spring Charging Circuit
Uses secondary connector pins 25 & 35.
o (1) Shunt Open Circuit (Trip Coil)
Uses secondary connector pins 31& 30.
o (1) Shunt Close Circuit
Uses secondary connector pins 4 & 14.
o Control Under Voltage Release (UVR) Circuit
Uses secondary connector pins 2 & 44.
This requires the UVR option to be installed.
o (2) Normally Open Relays
Relays are open when breaker is open.
1
st
Relay uses secondary connector pins 7 & 17.
2
nd
Relay uses secondary connector pins 9 & 19.
o (1) Normally Closed Relay
Relay is closed when breaker is open.
Uses secondary connector pins 23 & 33.