Nema 3 Phase Contactor Wiring

Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2 l2 l3 gnd h1 h3 h2 h4 f u 3 x1a f u 4 f u 5 x2a r power on optional x1 x2115 v 230 v h1 h3 h2 h4 optional connection.

Nema 3 phase contactor wiring. Nema contactor overview. Timer and contactor wiring diagram pdf. It uses two contactors two auxiliary contact blocks an overload relay a mechanical interlock two normally open start pushbuttons a normally closed stop pushbutton and a power supply with a fuse. From nema standard ics 2 321a 60 1 phase 2 phase 4 wire 3 phase line.

Typical wiring diagrams three phase and single phase applications nema size wire size cu only power terminals line 00 0 1 2. Start stop 3 phase motor starter wiring thomas shue s world. This diagram is for 3 phase reversing motor control with 24 vdc control voltage. How to wire a contactor and overload.

3 nema sizes 00 and 0 only. Motor control wiring diagram. Line terminals are at the top of the device and load terminals at the bottom. You can use these contactors to switch ac motor loads where overload protection is not required or is provided separately.

Contactor wiring diagram contactor wiring diagram contactor wiring diagram 3 phase contactor wiring diagram ac unit every electrical arrangement consists of various distinct components. Sizes 00 and 0 to 8 awg and sizes 1 2 to 2 awg. 2 only available on an56 reversing starters. Control wiring 3 wire control start stop circuit the most common use of 3 wire control is a start stop control.

Wiring diagrams figure 33 24. See image below for an example of 3 wire control being used to pull in a contactor to start a 3 phase motor. 4 nema sizes 00 and 0 only. 5 nema size 5 requires the use of cts with 1 5a ol relay.

Start stop 3 phase motor control wiring diagrams. A n 1 9 a n 0 a 5e 005 device type a starter c contactor contactor. Full voltage reversing 3 phase motors. Contactor breakers limit switch n o.

Wire 75 c sizes awg or kcmil nema sizes 3 8 open and enclosed minimum per nec. Sizes 1 8 are 24 60 only. How to wire 3 phase magnetic starters or contactors for single phase use and save. Nema contactor and starter specifications ac coil data auxiliary contacts nema a600 and p300 bulletin 595 596 nema size operating volt amperes burden va heat dissipation w coil operating limits 60 hz coils inrush sealed 00 70 8 2 7 85 110 0 192 29 5 9 1 1p 192 29 5 9 2 2 3 poles 240 29 5 9 2 4 5 poles 315 38 5 9.