Bender LifeGuard Series - Backplate Only Models; Mounting Instructions

LifeGuard® Series
LG_D00393_00_Q_XXEN / 05.2019 5
Figure W3 -
Three-Phase, Four-Wire
Congurations (L1, L2,
L3, N)
7L4
5L3
3L2
1L1
8T4
6T3
4T2
2T1
L1
L2
L3
N
Line
Load
GND
Note 1
L1
L3
N
L2
GN
D
CT
Figure W4 - Single-Phase
120/240 V Congurations
(L1, L2, N)
7L4
5L3
3L2
1L1
8T4
6T3
4T2
2T1
L1
L2
N
Line
Load
GND
Note 1
Note 1
L1
L2
N
GND
CT
Note 1: Disconnect switch, branch circuit protection and/or overload relay to be provided by installer.
Note 2: Three-phase three-wire supplies can be solidly, or resistance grounded.
Additional Requirements - Backplate Only Models
This section only applies to LifeGuard models purchased without an enclosure and on
a backplate only. Refer to instructions below for additional requirements for installation
and wiring. Backplate-only models must be installed in a suitable enclosure.
Mounting - Backplate Only
Refer to Figure 3 below for dimensions. The unit must be mounted in a location sufficient
to protect live electrical equipment. Use four (4) #10 screws for mounting. It should be
placed X inches away from other equipment. This vertical clearance X (minimum depth of
enclosure, measured from the installed backplate) of the backplate is:
7L4 5L3 3L2 1L1
8T4 6T3 4T2 2T1
Note 1 Note 1
B
D
A
C
CT
Type A x B C x D
< 100 A
8.75“ x 10.75
(222 x 273)
8.25“ x 10.25“
(210 x 260)
100 A
12.75“ x 14.75“
(324 x 375)
12.25“ x 14.25“
(311 x 362)
• 6” (152 mm) for models less than 100 A
• 8” (203 mm) for 100 A models.
The mounting hole diameter is 3/8“ (9.5 mm).