169 Drawout Relay - GE 169 Instruction Manual

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GE Power Management
2 INSTALLATION

2.22 169 Drawout Relay

The model 169 and 169 Plus relays are available in a drawout case option. The operation of the relay is the same
as described elsewhere in this manual except for the differences noted in this section. The physical dimensions of
the drawout relay are as shown in Figure 2-10. The relay should be mounted as shown in Figure 2-11.
The drawout 169 relay can be removed from service without causing motor shut-down. This can be useful for
replacing, calibrating, or testing units.
RELAY MOUNTING - Make cutout as shown and drill six 7/32" holes on mounting panel. Approximately 2-1/2"
should be clear at the top and bottom of the cutout in the panel for the hinged door. Ensure that the five #6-32 nuts
are removed from the threaded studs in the mounting flange and that the drawout chassis has been removed from
the drawout case. Install the case from the rear of the mounting panel by aligning the five #6-32 threaded case
studs to the previously drilled holes. With the studs protruding through the holes secure the case on the right hand
side with two #6-32 nuts provided. Install the hinged door on the front of the mounting panel using three #6-32 nuts
provided. There must be at least 1/2" clearance on the hinged side of the drawout relay to allow the door to open.
RELAY REMOVAL - Open the hinged door. Next remove the two ten finger connecting plugs making sure the top
one is removed first. Swivel the cradle-to-case hinged levers at each end of the 169 cradle assembly and slide the
assembly out of the case.
RELAY INSTALLATION - Slide the 169 cradle assembly completely into the case. Swivel the hinged levers in to lock
the 169 cradle assembly into the drawout case. Install the two ten finger connecting plugs making sure the bottom
plug is installed first. Close the hinged door and secure with the captive screw.
IMPORTANT NOTE: When removing the drawout relay cradle assembly the top ten finger connecting plug must be
withdrawn first. This isolates the 169 output relay contacts before power is removed from the relay. When installing
the drawout relay cradle assembly the bottom ten finger connecting plug must be installed first. This causes power
to be applied to the 169 relay before the output relay contacts are placed in the circuit.
After a 169 relay cradle assembly has been removed from the drawout case it is recommended that the hinged door
be closed in order to reduce the risk of electric shock.
Due to the hardware configuration of the drawout relay shorting bars, the RELAY FAILSAFE CODE (SETPOINTS,
page 5) should not be changed without consulting the factory. Wiring for the 169 Plus drawout is shown in Figure 2-
12. If it is required that any of the output relay configurations in Figure 2-12 be different than shown, this information
must be stated when the relay is ordered.
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