Miller Electric OM-230 manual Electrical Service Guide, Input Voltage, 200 230 460 575, 127 206

.A complete Parts List is available at www.MillerWelds.com

4-12. Electrical Service Guide

Failure to follow these electrical service guide recommendations could create an electric shock or fire hazard. These recommenda- tions are for a dedicated branch circuit sized for the rated output and duty cycle of the welding power source.

Input Voltage	200	230	460	575
Input Amperes At Rated Output	48	42	21	17
Max Recommended Standard Fuse Or Circuit Breaker Rating In Amperes
Circuit Breaker 1, Time-Delay 2	60	50	25	20
Normal Operating 3	70	60	30	25
Min Input Conductor Size In AWG4	8	8	12	14
Max Recommended Input Conductor Length In Feet (Meters)	96	127	206	209
	(29)	(39)	(63)	(64)
Min Grounding Conductor Size In AWG4	8	10	12	14
Reference: 2005 National Electrical Code (NEC) (including article 630)

1Choose a circuit breaker with time-current curves comparable to a Time Delay Fuse.

2“Time-Delay” fuses are UL class “RK5” .

3“Normal Operating” (general purpose − no intentional delay) fuses are UL class “K5” (up to and including 60 amp), and UL class “H” ( 65 amp and above).

4Conductor data in this section specifies conductor size (excluding flexible cord or cable) between the panelboard and the equipment per NEC Table 310.16. If a flexible cord or cable is used, minimum conductor size may increase. See NEC Table 400.5(A) for flexible cord and cable requirements.

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