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Power Assemblies and Controllers

Circuit Protection

Square Body Fuses

Bussmann’s Square Body DC Fuses are high speed fuses that provide superior protection in light and harsh DC traction applications as 1200Vdc and below circuits, and as DC link/power converters. 

The square body DC fuses feature excellent DC performance and low arc voltage and low energy let-through. The fuses also feature low watts loss and superior cycling capability.

Typical applications for Bussmann’s square body DC fuses include: DC common bus, DC drives, power converters/rectifiers and reduced voltage starters.

Square body fuses are a reliable solution for high power applications which require a compact design with superior performance. 

Bussmann Square Body Fuses Available at GD Rectifiers

Bussmann’s square body fuses are available with a selection of different end fittings: DIN 43 653, DIN 43 620, Flush End (Metric/US), French Style and US Style. The square body fuses are available with three different open fuse indicator systems and the Bussmann offers a custom designed service to their customers.

All Bussmann square body fuses are tested to IEC 60269: Part 4, which requires a test voltage 5% higher than the rated voltage.

View Bussmann's High Speed Fuse Catalogue

 

Square Body DC Fuses

1200Vdc: 160-420A

Fuse Type         Part Number         Amps    Watts Loss  
2SKN/140 170F8230 160 75
170F8231 200 85
170F8232 250 94
170F8233 315 104
170F8234 400 120
170F8235 420 122

 

4000Vdc: 20-450A

Fuse Type         Part Number       Rated Voltage (Vdc)    Rated Current RMS-Amp    Watts Loss (W)  
t*SKN/394 170E3914 4000 20 23
170E3915 25 28
170E3916 32 34
170E3917 40 45
170E3918 50 57
170E3919 63 72
170E3984 80 91
170E3933 100 114
170E3922 125 143
2 SKN/394 170E8882 160 182
170E8883 200 228
170E8884 250 285
2/2SKN 170E8885 315 360
170E8886 350 400
170E8887 400 455
170E8888 450 515

 

750Vdc: 63-500A

Fuse Size      -BK/130  -EK/-      Rated Voltage (Vdc)    Rated Current RMS-Amp    Watt Loss (W) 
1* 170E3577    170E3583    750 63 10.0
170E3578 170E3584 80 13.0
170E3579 170E3585 100 16.0
170E3580 170E3586 125 21.0
170E3581 170E3587 160 26.0
1 170E5417 170E5420 200 37.0
170E5418 170E5421 250 46.0
2 170E8335 170E8345 250 47.0
170E8336 170E8346 315 57.0
170E8337 170E8347 400 73.0
170E9681 170E9685 500 91.0

 

2000Vdc: 10-125A

Fuse Size     -SKN/246 Type K Indicator  Rated Voltage (Vdc)    Rated Current RMS-Amp    Watt Loss (W)  
1*SKN/246 170E3976 2000 10 7
170E3970 16 11
170E3950 20 13
170E3951 25 17
170E3952 32 22
170E3953 40 27
170E3954 50 34
170E3955 63 43
170E3956 80 50

 

Square Body DIN Fuses 

Fuse Type                   Voltage        Current        Interrupting Rating   
DIN 43 620
690 (IEC): 10-800A 690Vac (IEC)    10-800A 300kA RMS Sym.
690V (IEC/UL): 10-315A   690Vac 10-315A 200kA RMS Sym.
690/700V (IEC/UL): 40-1000A   

690Vac (IEC) 

700Vac (UL)

40-1000A 200kA RMS Sym.
DIN 43 653
1000V (IEC): 20-315A

1000Vac

900Vac

20-250A

315A

150kA RMS Sym.

150kA RMS Sym.

1000V (IEC):50-1400A 1000Vac 50-1400A 150kA RMS Sym.
1250/1300V (IEC/UL): 50-1400A    

1250Vac (IEC)

1300Vac (UL)

50-1400A

 

100kA RMS Sym.

 

690/700V (IEC/UL): 10-400A

690Vac (IEC)

700Vac (UL)

10-400A

 

200kA RMS Sym.

 

690/700V (IEC/UL):40-2000A

690Vac (IEC)

700Vac (UL)

40-2000A

 

200kA RMS Sym.

 

 

Square Body Flush End Fuses

Fuse Type          Contact Size        Voltage         Current        Interrupting Rating   
660V (IEC):1000-7500A       23, 24 660Vac 1000-4000A    300kA RMS Sym. 
1250V (IEC/UL):630-2800A    23 1250V (IEC) 630-2800A 125kA RMS Sym.
1000V (IEC): 2000-5000A 24 1000Vac 2000-5000A 300kA RMS Sym.
1000V (IEC): 1000-2700A 4 1000Vac 1000-2700A 125kA RMS Sym.
1250V (IEC): 1400-2500A 4 1250Vac 1400-2500A 125kA RMS Sym.
1000-2000V: 1800-5000A 5 1000-2000Vac (IEC)   1800-5000A 300kA RMS Sym. 197kA tested  
1000V (IEC): 50-1400A - 100Vac 50-1400A 150kA RMS Sym.
1250/1300V (IEC/UL): 50-1400A    - 1300Vac (UL) 1400A 100kA RMS Sym.
690/700V (IEC/UL): 1000-4000A   - 690Vac 100-4000A 200kA RMS Sym.
690/700V (IEC/UL): 40-1500A -

690Vac (IEC)

700Vac (UL)

40-1500A 200kA RMS Sym.

 

Square Body French Style Fuses

Fuse Type                  Voltage           Current            Interrupting Current     
690/700V (IEC/UL): 40-1500A    

690Vac (IEC)

700Vac (UL)

40-1500A 200kA RMS Sym.

 

Square Body US Style Fuses

Fuse Type                   Voltage            Current             Interrupting Rating        
1250/1300V (IEC/UL): 50-1400A      

1250Vac (IEC)

1300Vac (UL)

50-1400A 100kA RMS Sym.
690/700V (IEC): 40-2000A

690Vac (IEC)

700Vac (UL)

40-200A 200kA RMS Sym.
1000V (IEC): 50-1400A  1000Vac 50-1400A 150kA RMS Sym.
 

For further information on Bussmann's range of Square Body Fuses, please call our team on: 01444 243 452 or email: .(JavaScript must be enabled to view this email address)

Eaton Bussmann

Eaton Bussmann are a division of Cooper Industries and are a leading Manufacturer of Circuit Protection Solutions. They manufacture a wide range of Circuit Protection Fuses, Microswitches and Trip Indicators.

Further information:

You can find further information on Eaton Bussmann using the following links:

Tel: 01444 243 452

Fax: 01444 870 722

Email: enquiries@gdrectifiers.co.uk