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MELTRIC MOTOR CONNECTION GUIDE Meltric Decontactor Series Motor Plugs are a combination plug & receptacle and disconnect switch in the same device. With their UL and CSA switch ratings, Decontactors provide users with a cost effective and convenient means of providing the NEC required ‘line of sight’ disconnect. They also help to significantly reduce motor change-out downtime by combining plug and play simplicity with the safety of a dead-front switch. Motors that are pre-wired with a plug or inlet can be connected simply by being plugged in, and because there is no access to live parts, the need for NFPA 70E required arc-flash hazard analysis and associated PPE is eliminated. Decontactors can be installed in a number of ways, making it easy to accommodate the requirements of the application and preferences of the user. Examples of common installation practices are shown below. TYPICAL MOUNTING CONFIGURATIONS DIRECT MOUNTED INLET WALL MOUNTED CONNECTION Threaded Handle Female Connector Female Receptacle Flexible Conduit Junction Box with 30° Angle Male Plug & Nylon Handle with integral Cable Grommet Male Inlet Mounted on Motor OVERHEAD CORD CONNECTION HARD PIPED CONNECTION Female Connector (shown disconnected) Plug and Connector with Wire Mesh Strain Relief Threaded Handle Male Inlet Liquid Tight Flexible Conduit SELECTING THE RIGHT DECONTACTOR™ SERIES TESTS PASSED Per UL Subject 2682 Switch-Rated Plugs and Receptacles Electrical Endurance (With Load) 6000 Cycles @ Rated Current & Voltage (p.f. = .75 -.80) DSN Series Choose DSN Series for its… u Compact, lightweight design u Automatic Type 4X watertightness Common Applications u Wet or washdown environments u Plug & play electrical connections Overload - Locked Rotor (Horsepower Rated Devices) 50 Operations @ 600% of Full Load Motor Current (p.f. = .40 - .50) Overload (General Use Devices)1 50 Operations @ 150% of Rated Current (p.f. = .75 - .80) Short Circuit Withstand ≥ 10 kA* (600V and ≤ .50 power factor) Short Circuit Make DS Series Choose DS Series for its... u High amperage range (up to 200A) u Poly or metal casing materials (60A and above) u Larger conductor capacities Common Applications u Heavy industry u High amperage equipment ≥ 10 kA* (600V and ≤ .50 power factor) Voltage Withstand 1000V + 200% of Device Rating Temperature Rise < 30°C 1 DS100 and DS200 models. * Minimum 65kA ratings were achieved by all DSN, DS and DB Series plugs and receptacles. DB Series Choose DB Series for its... u High HP ratings (up to 60 hp) u Robust, heavy duty construction Common Applications u Motors with frequent make and break requirements u Harsh environments ©2014 Meltric Corporation. All rights reserved. MTRCONNECTION F meltric.com 4640 Ironwood Drive • Franklin, WI 53132 800.433.7642 • Fax 414.817.6161