Miller Electric UPC 838 manual Connecting Work Clamp And Gas/Air Supply, Electrical Service Guide

4-5. Connecting Work Clamp And Gas/Air Supply

1

2

5

3

4

From Gas/Air Supply

Rear of

Unit

1Work Clamp

2Workpiece

Connect work clamp to a clean, paint-free location on workpiece, as close to cutting area as possible.

.Use only clean, dry air with 90 to 150 psi pressure.

3Gas/Air Inlet Opening

4Hose

5Teflon Tape

Obtain hose with 3/8 in (9.5 mm) or larger diameter and 1/4 NPT right- hand thread fitting. Wrap threads with teflon tape (optional) or apply pipe sealant, and install fitting in opening. Route hose to gas/air supply.

Adjust gas/air pressure according to Section 5-2.

Tools Needed:

5/8, 1-1/8 in

Ref. 803 640-A / 802 803-A

4-6. Electrical Service Guide

		UPC 838
Input Voltage	380		440
Input Amperes At Rated Cutting Capacity	21.6		19.3
Max Recommended Standard Fuse Rating In Amperes
Circuit Breaker 1, Time-Delay 2	30		30
Normal Operating 3	35		35
Min Input/Grounding Conductor Size In mm2	4	6	10
Max Recommended Input Conductor Length In Meters	50	100	150
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).

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