Hobart Welding Products 652, 302, 452 manual Electrical Service Guide

3-11. Electrical Service Guide

60 Hertz Models		300 Amp Model				450 Amp Model			650 Amp Model
Input Voltage	200	230	460	575	200	230	460	575	230	460	575
Input Amperes At Rated Output	70	61	31	25	102	89	45	36	124	62	50
Max Recommended Standard Fuse
Rating In Amperes 1
Time-Delay 2	80	70	35	30	125	110	50	45	150	70	60
Normal Operating 3	110	90	45	35	150	125	70	50	175	90	70
Min Input Conductor Size In AWG/	6	8	10	12	4	4	8	10	3	8	8
Kcmil
Max Recommended Input Conductor	149	131	356	342	136	180	319	335	144	210	328
Length In Feet (Meters)	(45)	(40)	(108)	(104)	(41)	(55)	(97)	(102)	(44)	(64)	(100)
Min Grounding Conductor Size In	6	8	10	12	6	6	8	10	6	8	8
AWG/Kcmil
Reference: 1999 National Electrical Code (NEC)

1Consult factory for circuit breaker applications.

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).

50 Hertz Models		300 Amp Model				450 Amp Model				650 Amp Model
Input Voltage	380		400	440	380		400	440	380		400	440
Input Amperes At Rated Output	35		33	31	54		51	47	75		71	65
Max Recommended Standard Fuse Rating In
Amperes 1
Time-Delay 2	40		40	35	60		60	50	90		80	80
Normal Operating 3	60		50	50	80		80	70	125		110	100
Min Input Conductor Size In AWG/Kcmil	10		10	10	8		8	8	6		6	6
Max Recommended Input Conductor Length	243		269	326	218		241	292	219		242	293
In Feet (Meters)	(74)		(82)	(99)	(66)		(73)	(89)	(67)		(74)	(89)
Min Grounding Conductor Size In AWG/Kcmil	10		10	10	8		8	8	6		6	8
Reference: 1999 National Electrical Code (NEC)

1Consult factory for circuit breaker applications.

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).

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