INSTALLATION
The distribution style M3 disconnect switch is made for mounting to either a single or double crossarm in an inverted (Figure 3) or vertical position (Figure 4).
NOTE: Four bolts must be used to mount on a double crossarm. Two bolts in center only may cause over bending of backstrap or base.
Position the M3 switch on the crossarms using the backstrap. Adjust the bolt heads in the switch base slots as needed to closely fit the crossarms as in Figures
Deadend conductors using your utility’s normal practices.
Wire brush terminal pads and apply a coating of oxidation inhibitor such as Chance z.l.n. (100 or 200).
If your switch is equipped with
Wire brush connector mounting surfaces and attach to terminal pads as shown in Figure 5 with hardware facing away from insulators. Wire brush electrical conductors and apply a coating of oxidation inhibitor such as Chance z.l.n. (100 or
200)before inserting into connector. Tighten connector hardware to about 30
(STANDARD) | NUTS & WASHERS | |
THIS SIDE ONLY | ||
|
(STANDARD)
NUTS &
WASHERS
THIS SIDE
ONLY
Figure 4
Vertical Mount
TERMINAL PAD
BY PASS
STUD
TERMINAL
Figure 5
Figure 3 Inverted-Underhung
2
Part No.