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6
1397 150HP AC Line Disconnect
Installation
(continued)
1397-5.21
July, 1997
6 a Mount the AC line disconnect to the disconnect panel using
the (4) M5 fasteners included with 250A kits, or the (4) M6
fasteners included with 400A kits.
b Connect the bus bars installed in Step 3 to the disconnect's
load terminals using 1/4" fasteners with 250A kits or 3/8"
fasteners with 400A kits.
Torque all fasteners on the bus bars to the following values. Use
a hex wrench and an open end wrench to tighten the M8 or M10
fasteners.
Fastener Size
Maximum Torque
1/4"
7.46 N-m (66 lb.-in.)
3/8"
26.66 N-m (236lb.-in.)
M8
11.29 N-m (100lb.-in.)
M10
22.59 N-m (200lb.-in.)
a
a
Hex Wrench Size
—
—
4mm
5mm
a
a
b
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