EJM Series
Enclosed Manual Motor Controllers
EJM30BSx, EJM60Bxx, EJM80BPx
Document no. 34EJM30-80-A
Installation instructions
WARNING
Applications
To avoid hazard of electric
shock, turn off and lock out all
power sources before installing
or performing maintenance on
this equipment.
The EJM series of enclosed manual motor controllers are rotary operated, 3
or 4 pole, up to 600V HP rated switches, housed in thermoplastic enclosures
suitable for humid and corrosive environments. Rated NEMA 4X may be used
for both indoor and outdoor applications. Products are properly installed on the
load side of a branch circuit protective device and are suitable for use as motor
disconnects.
Disconnecting means
Short circuit protective device
Controller
Overload protection
Motor disconnection
M
Ratings
P/N
EJM30BSx
EJM60Bxx
EJM80BPx
AMPS
40A
60A
80A
Enclosure size
Size 1
Size 2
Size 3
VAC
HP
HP
HP
200V
10
15
20
208V
10
15
20
240V
10
15
20
480V
20
30
40
600V
25
30
40
Wire connections
Optional Power Poles
EJM30BSx:
4P40
NP40
4th pole
Solid neutral pole
EJM60-80Sx:
4P80
4th pole
NP80
Solid neutral pole
Optional Auxiliary contacts
OA1G10 (1 N.O.)
Install on right side of switch. Max. 2 pcs on 3-pole
switch, 1 pcs on 4-pole switch (EJM30BSx).
OA1G01 (1 N.C.)
Install on left side of switch. Max. 2 pcs.
OA2G11 (1 N.O. + 1 N.C.) Install on right side of switch.
I ON
O OFF
EJM30BSx:
Switch wire range:
#18-8 AWG, 60-75 °C, Cu only, solid or stranded
Torque:
7 lb.in, use Pozi-drive #2 or flat blade screwdriver
EJM60-80BSx:
Switch wire range:
#14-4 AWG, 60-75 °C, Cu only, solid or stranded
Torque:
18 lb.in, use Pozi-drive #2 or flat blade screwdriver
Auxiliary contacts, 10A, 600V, A600-R300
Switch wire range:
#18-14 AWG, 60-75 °C, Cu only, solid or stranded
Torque:
7 lb.in, use Pozi-drive #2 or flat blade screwdriver
EJM Series
Enclosed Manual Motor Controllers
Installation
Operate switch to the OFF position and loosen the cover
screws, remove the cover.
EJM30BSx
Two concentric 1/2" & 3/4" K.O.s are provided in the top
and bottom of the enclosure (size 1).
EJM60Bxx
Two concentric 3/4" & 1" K.O.s are provided in the top
and bottom of the enclosure (size 2).
EJM80BPx
Two concentric 1" & 1 1/4" K.O.s are provided in the top
and bottom of the enclosure (size 3).
An internal metallic plate bonds together all conduit
hubs installed, without the need for additional bonding
jumpers.
• Drill proper holes for conduit hubs or use K.O.s
• Install conduit hubs
• Install enclosure size 1 and 2 using (2) #8 or M4 screws
• Install enclosure size 3 using (4) 1/4" or M6 screws
Wiring
For ease of wiring, it is recommended to remove the
switch from the enclosure before pulling the wire. A
small flat blade screwdriver may be used to release the
DIN rail clip at the bottom of the switch, allowing it to be
removed.
EJM30BSx:
9-10 mm
0.35 - 0.39 in
EJM60Bxx:
10 - 12 mm
0.39 - 0.47 in
A07199
Connect power wires to switch terminal and attach
ground wire to the ground terminal block inside the
enclosure. Reinstall the switch in the enclosure.
Reference the National Electric Code and all local codes
for appropriate wire size and grounding requirements.
EJM30BSx:
0.75...10mm2
18...8 AWG
EJM60Bxx:
1.5...25 mm2
14...4 AWG
Pozi-drive #2 or flat blade screw
EJM30BSx: Torque 7 lbs/in
EJM60-80Bxx: Torque 18 lbs/in
Auxiliary contacts: Torque 7 lbs
Ground terminal block:
Torque 7 lbs/in
EJM Series
Enclosed Manual Motor Controllers
Reinstall enclosure cover, note that both the switch and
the operating handle on the cover must be in the OFFposition. Tighten the cover screws.
Operating handle
Operating handle may be padlocked in the OFF-position
with up to three padlocks. When locked, the enclosure
cover is interlocked and can not be removed. All padlocks
must be opened to gain entry to the enclosure.
A00323A
Ø 5...8 mm / 0.20...0.32 in
A00322A
O OFF
I ON
Ø 5...10 mm / 0.20...0.39 in
!
EJM Series
Enclosed Manual Motor Controllers
EJM30BSx
(enclosure size 1)
mm
in
4.5
0.18
19
0.75
7.40
0.29
30
1.8
30
1.18
I ON
3/4 "
1/2 "
M25
100
3.94
Metric M20
(0.79 dia)
115.5
4.55
34.5
1.36
Metric M20
(0.79 dia)
Selector type handle
EJM60BSx
152
5.98
36
1.42
O OFF
76
2.99
140
5.51
152
5.98
161.4
50
6.35
1.97
20
0.79
20
0.79
R2.5
0.09
45
1.77
126
4.96
24
0.94
50
1.97
25
0.98
Pistol type handle
EJM60BPx
(enclosure size 2)
(enclosure size 2)
EJM80BPx (enclosure size 3)
mm
in
210
8.27
189
7.44
20.5
0.81
189
7.44
20
0.79
238
9.37
60
2.36
300
11.81
150
5.91
238
9.37
1"
1 1/4"
Ø6.6
0.26
105
4.13
45
1.77
136
5.35
181
7.12
ep.mersen.com
1"
1 1/4"