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"