Specifications

37
RECTIFIERS & SEMI-CONDUCTORS
REPLACEMENT SINGLE PHASE MIG RECTIFIERS
DESCRIPTION Plate sizes No. plates D Fixing PART No
130A FULL WAVE BRIDGE 140mm x 100mm 2 40mm 1 BOLT RECT131ABR
170A FULL WAVE BRIDGE 140mm X 100mm 4 75mm 1 BOLT RECT171ABR
230A FULL WAVE BRIDGE 200mm x 100mm 4 75mm 2 BOLTS RECT231ABR
290A FULL WAVE BRIDGE 200mm x 100mm 4 75mm 2 BOLTS RECT291ABR
400A FULL WAVE BRIDGE 200mm x 100mm 8 140mm 2 BOLTS RECT401ABR
200A CENTRE TAP 200mm x 100mm 2 35mm 2 BOLTS RECT201ACT
280A CENTRE TAP 200mm x 100mm 4 95mm 2 BOLTS RECT281ACT
390A CENTRE TAP 200mm x 100mm 4 95mm 2 BOLTS RECT391ACT
REPLACEMENT THREE PHASE MIG RECTIFIERS
DESCRIPTION Plate sizes No. plates D Fixing PART No
290A 3 PHASE BRIDGE 200mm x 100mm 6 100mm 2 BOLTS RECT293ABR
300A 3 PHASE BRIDGE 250mm x 120mm 2 35mm 2 BOLTS RECT303ABR
400A 3 PHASE BRIDGE 200mm x 100mm 6 105mm 2 BOLTS RECT403ABR
450A 3 PHASE BRIDGE 200mm x 100mm 6 105mm 2 BOLTS RECT453ABR
550A 3 PHASE BRIDGE 300mm x 100mm 6 105mm 3 BOLTS RECT553ABR
600A 3 PHASE BRIDGE 300mm x 100mm 6 105mm 3 BOLTS RECT603ABR
The RECT303ABR is a 2 plate rectifier replacement for Esab / Murex 3 phase compacts LKA/LKB type.
REPLACEMENT PLASMA RECTIFIERS
DESCRIPTION Plate sizes No. plates D Fixing PART No
30A 1~ FULL WAVE BRIDGE 100mm x 100mm 2 35mm 1 BOLT RECT31ABR
60A 1~ FULL WAVE BRIDGE 200mm x 100mm 2 35mm 2 BOLTS RECT61ABR
60A 3~ BRIDGE RECTIFIER 100mm x 100mm 6 115mm 1 BOLT RECT63ABR
90A 3~ BRIDGE RECTIFIER 100mm x 100mm 6 115mm 1 BOLT RECT93ABR
120A 3~ BRIDGE RECTIFIER 100mm x 100mm 6 115mm 1 BOLT REC123ABR
Amperages for all rectifiers are at 60% duty cycle except RECT303ABR & RECT171ABR which are 35%, all ratings are with fan cooling & good airflow across all
plates. Max plate temperature is 140’C fit a thermal cut out if necessary.
The plate sizes quoted give a good indication of overall size; inputs & outputs come out on the 100mm side increasing this dimension a bit, however these can be carefully moved if required (except
plasma rectifiers). The D size quoted is the total depth of the rectifier from the first plate to the last plate, however you need to allow another 20mm each side for the ceramic insulator, washers & nut,
the mounting bolt also extends further on each side but can be cut down if needed.
STUD MOUNTED RECTIFIER DIODES
CURRENT VOLTAGE
RATING RATING POLARITY PACKAGE PART No
70A 600V STUD CATHODE DO-5 ¼-28UNF2A DI70HF60
300A 600V STUD CATHODE DO-9 ¼-16UNF2A DI300U60
300A 600V STUD ANODE DO-9 ¼-16UNF2A DI300UR60
PRESS FIT DIODES - COMPLETE WITH BRASS TAILS WITH RING TERMINAL
TYPE APPLICATION PART No.
32A 400V CASE ANODE (BLACK) ESAB, MIGATRONIC, PORTAMIG, MESSER DI35400A
32A 400V CASE CATHODE (RED) ESAB, MIGATRONIC, PORTAMIG, MESSER DI35400C
32A 1200V CASE CATHODE (RED) PLASMA RECTIFIERS DI351200C
50A 600V CASE ANODE (BLACK) DI50600A
50A 600V CASE CATHODE (RED) DI50600C
THYRISTORS NEW
THYRISTOR TYPE / PACKAGE CURRENT (AMPS ave) VOLTAGE APPLICATION PART No
STUD MOUNTED THYRISTOR (6MM STUD) 63A 800V GENSET, MOSA THY6312
STUD MOUNTED THYRISTOR (13MM STUD) 80A 800V OERLIKON, TEC ARC, ETC THY8008
STUD MOUNTED THYRISTOR 13MM STUD) 110A 800V OERLIKON, TEC ARC, ETC THY11008
STUD MOUNTED THYRISTOR (20MM STUD) 180A 800V OERLIKON, TEC ARC, ETC THY18008
STUD MOUNTED THYRISTOR (20MM STUD) 230A 800V OERLIKON, TEC ARC, ETC THY230120
CAPSULE TYPE THYRISTOR (43MM X 14MM) 410A AVE 780A RMS 600V GENSET, MOSA, LINCOLN, ETC THY23006
CAPSULE TYPE THYRISTOR (43MM X 14MM) 500A AVE 960A RMS 400V GENSET, MOSA, LINCOLN, ETC THY28004
CAPSULE TYPE THYRISTOR (TO200AB E-PUK) 720A AVE 1420A RMS 1200V GENSET, MOSA, LINCOLN, ETC THY330120
INTERNAL THYRISTOR & DIODE MODULE 90A (SKKH9208D / IRKH9106) 800V MUREX, BOC DC130 / DC135 THYTD9006
DUAL THYRISTOR MODULE 90A (SKKT91/92-12 / IRKT9112) 1200V OERLIKON, TEC ARC, HIRRANE THYTT9120
DUAL THYRISTOR MODULE (COMMON CATHODE) 132A (SKMT132-04) 400V ESAB LAW400/500, MUREX 413/513 THYTT13204
OTHER RECTIFIERS CAN BE MANUFACTURED TO SUIT MOST WELDING MACHINES ON REQUEST. WE ALSO OFFER REBUILDS AND LOAD TESTING ON MOST
DIODE AND THYRISTOR RECTIFIERS INCLUDING GENSET AND MOSA GENERATOR WELDERS.
DISCRETE SEMICONDUCTORS AND MODULES – IGBT`S MOSFETS, DIODES, RECTIFIERS, ETC.
WE STOCK AND CAN SOURCE A WIDE RANGE OF SEMICONDUCTORS TO SUIT MOST WELDING MACHINES. THESE INCLUDE I.G.B.T MODULES,
MOSFETS, DIODE MODULES, THYRISTORS AND TRIACS, ETC. DUE TO THE NUMBER OF DEVICES AVAILABLE IT IS IMPOSSIBLE TO LIST THEM ALL.
PLEASE TELEPHONE OUR TECHNICAL DEPARTMENT WITH THE DEVICE PART NUMBER AND MODEL OF MACHINE FOR PRICES. WE CAN ALSO
TEST SEMICONDUCTORS.
MODULE TYPE / PACKAGE AMPS DIMENSIONS VOLTAGE APPLICATION PART No
SINGLE PHASE INPUT RECTIFIER 35A 28mm X 28mm X 21mm 600V MOST SINGLE PHASE INVERTERS RECT35600
THREE PHASE INPUT RECTIFER 35A 28mm X 28mm X 21mm 1200V MANY 3 ~ INVERTERS RECT351200
THREE PHASE INPUT RECTIFER 110A 1200V KEMPPI, ETC. RECT1101200
For help cross referencing any semiconductors please call our technical dept
DI300UR60 & DI300U60 replace 70UR60 & 70U60 diodes
fitted to many machines such as Kemppi RA350/450,
BOC/Murex Transmig, Sterling, etc
Typical 6 plate plasma rectifier
6 plate 3 bolt fixing 3 ~ rectifier
4 plate 2 bolt fixing 1 ~ rectifier
QUANTITY DISCOUNTS APPLY FOR MIXED RECTIFIERS.