33- Akd-8, Kirk Key Interlock Oc Essessssssssesserssssensensenssnssnesententense - ABB AKR30S-800A Installation And Maintenance Manual

Retrofill circuit breakers
Table of Contents

Advertisement

Figure 78
AKD-8 (AKR75/100/125)—Door Interlocking Components
Figure below shows the components that make up the AKD-8 Retrofill door interlocking
assembly.
Figure below shows the Door Interlock Actuator mounted on Retrofill Breaker for AKR-
75/10
Door Interlock Actuator
(Screw Head)
33-
AKD-8,
Kirk Key Interlock
Emax
2
Retrofill
circuit
breakers
(AKR-30/50/T50
and
all
3200-5000A)
provided
as
replacements for AKR 800-5000A frame circuit breakers have a trip interlock feature which
will function using the AKD-8 compartment mounted Key Interlock. A label is provided with
full instructions on how to operate the Legacy Key Interlock.
It is suggested to apply the
label on the inside of the compartment door.
Following is a brief summary of how the Key
Interlock system is operated.
To activate the key interlock:
1.
OPEN the breaker.
2.
Rotate the screw on the lower front panel of the breaker which normally allows access
to the racking screw. This will hold the breaker trip free.
3.
While the screw is held rotated Clockwise, the Key Interlock slide in the switchgear is
pushed inward, elevating a pin on the left side of the breaker.
4.
Turn the key to the key removal position, extending the bolt and locking the breaker in
the OPEN position.
68] © 2020 Emax 2 Retrofill Circuit Breakers 800-5000A
2TSA451009P0000 Rev-B

Advertisement

Table of Contents
loading

Table of Contents