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Open Fuse Lockout Device
This device automatically trips the fuse breaker if one of the fuses opens. When this happens,
the breaker is locked open until the reset button of the phase involved is pushed. The breaker
should not be reclosed, of course, until the opened fuse is replaced.
1. Six UL recognized #18 awg, 150 degree C minimum, 600V control wires. One is connected
at each end of the Class "L" fuse mounting busbars. Each wire is attached to a ring terminal
which is attached with a screw to the busbar.
2. This accessory is meant to work with a pin-wheel style Blown Fuse Detector equipped with
3 trigger fuses. Wiring of the Retrofill Breakers with UL recognized high temperature control
wire is provided with the kit.
3. All these wirings are installed at factory.
Refer manual 2TSE432409P1000 , 2TSE432408P1000 , 2TSA1028P0000.
4. For Fused breakers Above 1600a(2000A-5000A) fuses are mounted ina separate fuse roll-out
element. Breakers can be used in series with the fuse roll out element when OFLO (Open Fuse
Lock Out) is installed on breaker.
Figure 77
BOLTSWITCH
BLOWN FUSE DETECTOR
75
C
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