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What are Medium voltage fuse size and types?
Medium voltage fuse,
What’s the Test standard for 3.6kV , 7.2 kV , 12 kV medium voltage fuse?
Motor protection fuses are based on BS 2691-1 Standard, IEC 60282-1, VDE 0670 part 4 and DIN Dimension standard DIN 43625.
Fuses example: XRNM-7.2/80-50, 3.6WFOH6200, 7.2WKNHO224,
Transformer protection fuses are according to DIN Dimensional standard DIN 43625, VDE 0670 part4, VDE 0670 part 402 and with IEC 60282-1 (2005).
Fuses such as: 12TDLEJ50 .
What's the medium voltage fuse sizes and fuse installation types? Base on fuse installation way, there are：
DIN type fuse
Important Note： The length is pointed to dimension "A".
Fuse Installation Size | Fuse dimension(Diameter x Length)mm | Fuse Voltage | Protection Device | Fuse Part # example | Fuse Application Device voltage |
DIN Type fuse | D51x192 | 3.6KV, 6KV, 7.2KV, 12KV | Transformer fuse PT fuse( Potential Transformer fuse) Switchgear fuse | XRNP-3.6/2-50-2 SDODJ-7.2kV/6.3A XRNP-6/3.15-50-2(DJ) | 6KV, 11KV switchgear |
D51x292 | 3KV, 3.6KV, 6.3KV, 7.2KV, 10KV, 12KV, 24KV | Transformer fuse Motor fuse PT fuse Switchgear fuse | 12TDLEJ63; SDLDJ-7.2KV/10A; WDLDJ-12kV/40A; | 3KV, 6KV, 11KV switchgear and motor | |
D51x360 | 24KV | PT fuse | XRNP-24/2-31.5(φ51×360) | 20KV, 22KV, 24KV potential transformer | |
D51x403 | 12KV | Switch fuse | SDNDJ-12kV/31.5A | 11KV switchgear | |
D51x442 | 3.6KV, 7.2KV, 12KV, 13.8KV, 15KV, 24KV | PT fuse Switch fuse | SDMDJ-12kV/16A; SDMDJ-13.8kV/50A; XRNP-24/0.5(φ51×442) | 3KV, 6KV, 10KV transformer and switchgear | |
D51x537 | 12KV, 40.5KV | Switch fuse | SDQDJ-40.5kV/3.15A; SDQAJ-12kV/40A(tableland type) | 11KV, 36KV switchgear | |
D64 x292 | 12KV | Switchgear fuse | 12THLEJ100 | 11KV switchgear | |
D76 x292 | 3.6KV, 7.2KV, 10KV, 12KV, 15.5KV | Motor fuse; Switch fuse | 12TKLEJ125; WFLDJ-12kV/100A; FFLDJ-12kV/63A; SFLAJ-15.5kV/30A | 3KV, 6KV, 10KV switchgear | |
D76 x362 | 12KV | Switchgear fuse | XRNT□-12kV/125A(φ76×362 AJ) | 10KV Switch | |
D76 x403 | 7.2KV, 12KV | Switchgear fuse; Motor fuse | WKNDJ-7.2kV/315A; SKNDJ-7.2kV/160A; SKNDJ-12kV/160A | 10KV Motor; 11KV Switchgear | |
D76 x442 and D76 x 424 | 3.6KV, 7.2KV, 12KV, 13.8KV, 15KV | Motor fuse; Switch fuse | SKMDJ-7.2kV/200A; SFMDJ-15kV/63A; WKMDJ-7.2kV/224A; WKMDJ-3.6kV/400A(adapter) | 3KV, 6KV, 12KV motor and switchgear | |
D76 x537 and D76 x 650 | 40.5KV | Transformer fuse | SXQAJ-40.5kV/63A; XRNT□-40.5kV/50A(φ76×650 AJ) | 36KV transformer | |
D88 x292 | 3.6KV, 7.2KV, 12KV | Motor protection fuse; Transformer fuse | SXLDJ-12kV/200A; WXLDJ-7.2kV/160A | 3KV, 6KV, 10KV motor and transformer | |
D88 x442， D88 x 537， D88 x 557 | 12KV, 40.5KV | Motor fuse; Transformer protection device | XRNT□-40.5kV/63A(φ88×577 DIN); WXMDJ-12kV/200A | 10KV, 36KV motor and switchgear |
BS type fuse
Fuse Installation Size | Fuse dimension(Diameter x Length）mm | Fuse Voltage | Protection Device | Fuse Part # example | Fuse Application Device voltage |
BS Busbar type fuse | D51 x 292; D76 x 292 | 3.6KV, 7.2KV, 12KV | motor protection fuse | WFFHO-3.6kV/125A(M); WFNHO-7.2kV/80A(M); WKFNO-3.6kV/250A(M) | 3KV, 6KV, 10KV motor |
D76 x 403; D76 x 600 | 7.2KV, 12KV | Motor fuse | WFNHO-7.2kV/63A(M); WKNHO-7.2kV/315A(M) | 6KV, 10KV motor |
BS type tube fuse
Fuse Installation Size | Fuse dimension(Diameter x Length）mm | Fuse Voltage | Protection Device | Fuse Part # example | Fuse Application Device voltage |
BS type tube fuse | D51x 254 | 3.6KV | Motor protection fuse | WDFNO-3.6kV/100A(-C) | 3KV motor |
D76x 254 | 3.6KV | Motor fuse | WKFNO-3.6kV/250A(-C) | 3KV motor | |
D76 x 403 | 3.6KV, 7.2KV, 12KV | Motor protection fuse | WFNHO-7.2kV/80A(-C); WFNHO-12kV/100A(-C) | 3KV, 6KV, 10KV high voltage motor | |
D76 x 442 | 7.2KV | High voltage motor fuse | WFMHO-7.2kV/160A(-C) | 6KV high voltage motor | |
D76 x 600 | 12KV | Motor fuse | XRNM□-12kV/100A(φ76×600-H-C) | 10KV motor |
M6 screw connection type fuse
Fuse Installation Size | Fuse dimension(Diameter x Length）mm | Fuse Voltage | Protection Device | Fuse Part # example | Fuse Application Device voltage |
Fuse with M6 screw | D25 x 194 | 12KV | PT fuse | XRNP1-12/3.15-50-1(M6 nut) | 10KV Potential transformer |
D53.5 x 258 D53.5 x 328 D53.5 x 314 | 7.2KV, 12KV | Transformer fuse | XRNT6-12kV/31.5A; XRNT6-7.2kV/100A | 6KV, 11KV switchgear |
One end plug - one end busbar type fuse
Fuse Installation Size | Fuse dimension(Diameter x Length）mm | Fuse Voltage | Protection Device | Fuse Part # example | Fuse Application Device voltage |
One end plug - in one end busbar type | D76 x 403 | 3.6KV, 7.2KV, 12KV | Switchgear fuse; Motor protection fuse | XRNT□-7.2kV/250A-50D; XRNM□-7.2kV/160A-50D; XRNM-3.6kV/125A-50D | 3KV, 6KV, 11KV switchgear and motor |
New industry Technology regarding to Bussmann fuse, ABB breakers, Amphenol connectors, HPS transformers, etc.
TAG: motor protection fuse transformer protection fuse medium voltage fuse