Miller Electric 255 Electrical Service Guide, Selecting a Location And Connecting Input Power

2-11. Electrical Service Guide

Input Voltage	200	230	460	575
Input Amperes At Rated Output	46	40	20	16
Max Recommended Standard Fuse Or Circuit Breaker Rating In Amperes
Circuit Breaker 1, Time-Delay Fuse 2	50	50	25	20
Normal Operating Fuse 3	70	60	30	25
Min Input Conductor Size In AWG/Kcmil	10	10	14	14
Max Recommended Input Conductor Length In Feet (Meters)	59	77	122	190
	(18)	(24)	(37)	(58)
Min Grounding Conductor Size In AWG/Kcmil	10	10	14	14

Reference: 1999 National Electrical Code (NEC)

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).

YCaution: Failure to follow these fuse and circuit breaker recommendations could create an electric shock or fire hazard.

2-12. Selecting A Location And Connecting Input Power

18 in (457 mm) of space for airflow

YDo not move or operate unit where it could tip.

YAlways connect grounding conductor first.

= GND/PE

4

L1

L2

1 Rating Label

Supply correct input power.

2Plug

3Receptacle

Connect plug to receptacle.

4Line Disconnect Device See Section 2-11.

YSpecial installation may be required where gasoline or volatile liquids are present – see NEC Article 511 or CEC Section 20.

2

1

3

L2L1

230 VAC, 1

ST-800 923-A

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