Hypertherm HPR260 User Manual

6 HPR260XD Field Service Bulletin 808270
HPR260XD Transformer Wiring
3. From the old transformer, discard the wires that connect C1 to B1 and B1 to A1. See Figure 2.
Figure 2
4. Reuse the wires that connect C2 and C3, B2 and B3, and A2 and A3 as shown in Figure 3.
 Use one piece of 75 mm (3 inch) heatshrink tubing (104423) on connections C2, B2, and A2.
 Use 2 pieces of 75 mm (3 inch) heatshrink tubing (104423) on connections: C3, B3, A3.
A4
A3
A2
A1
B4
B3
B2
B1
C4
C3
C2
C1
Discard C1 to B1 and B1 to A1 from
old transformer
From main contactor
From main contactor.
Old transformer
From main contactor

Hypertherm HPR260 Specifications

General

Input Frequency	50/60 Hz
Open Circuit Voltage (OCV)	300 VDC
Output Current	260A
Duty Cycle	100%
Cooling Method	Air-cooled
Protection Features	Overload, overvoltage, undervoltage