Wiring Instructions For Optional 240 Volt, Single-Phase Plug (Nema 14-50P) - Miller Electric 280 NT Owner's Manual

7-3. Wiring Instructions For Optional 240 Volt, Single-Phase Plug (NEMA 14-50P)

Current Available in Amperes
240 V Each 120 V Duplex
Receptacle* Receptacle
20 0
15 5
10 10
5 15
0 20
V x A = Watts
*One 240 V load or two 120 V loads.
OM-4430 Page 32
.
7
4
120V
120V
240V
4
240V
240 V AC
120 V AC 120 V AC
A complete Parts List is available at www.MillerWelds.com
The plug can be wired for a 240 V,
2-wire load or a 120/240V, 3-wire
load. See circuit diagram.
1 Plug Wired for 120/240 V,
3-Wire Load
When wired for 120 V loads, each
duplex receptacle shares a load
with one half of 240 V receptacle.
2 Plug Wired for 240 V, 2-Wire
Load
1
3
3 Neutral (Silver) Terminal
4 Load 1 (Brass)Terminal
5 Load 2 (Brass) Terminal
6 Ground (Green) Terminal
7 Amperes Available using
120/240 V Plug
5
6
2
3
6 5
Tools Needed:
plug1 11/03 − 120 813-D