1
INSTA LL ATION INSTRUC TIONS
Retrofit of Spectra K-frame with ABB Tmax XT7 breaker
Single Mount (Bolt-On kits)
General
These instructions are applicable to retrofit of Spectra K-frame with ABB Tmax XT7 breaker.
Table 1 lists the parts included in the bolt-on circuit breaker kits for single branch configurations.
WARNING
Danger of electrical shock or injury. Turn OFF power ahead of the panel board or switchboard before working inside the equipment
or removing any component. Equipment is to be installed and maintained by properly trained and qualified personnel only.
Installation
Numbers in brackets in the following instructions and figures refer to the item numbers in table below.
Item
Part
Description
Qty.
1
1/4 - 20 x 1.50” carriage bolt
6
2
1/4 - Belleville Washer
6
3
1/4 - 20 Nut
6
4
Breaker mounting bracket
1
5
Thread-forming screw #10-32
6
6
Flange Nut - Thread size 3/8-16
6
7
Socket Head Screw # 10-32 UNF x 4 IN
2
8
L-Shaped Barrier
1
9
Filler plate
1
10
Busbar Link assembly - C phase
1
Item
Part
Description
Qty.
11
Busbar Link assembly - B phase
1
12
Busbar Link assembly - A phase
1
13
Kit-Foldable Handle, XT7 (for panel
application)
1
14
Terminal Cover, XT7 (HTC)
1
Item
Part
Description
1
Torque wrench
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Retrofit Kit
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Required Tools
Below listed tools are required for installation
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Table 1. Retrofit kit
