Medium Voltage Transformer Fuse Links
Medium Voltage Transformer Fuse Links
Dimensions (mm):
A B D
Fuse link reference
(mm) (mm) (mm)
NBUN 86 17.5 25.4
Ferrule fuse links tag type ‘A’ shown in full lines and ‘22’: tag shown in dotted lines
Part Numbers
* The last letter of the ordering code on these items is normally either “A” or “22”, please refer to how to order page 7 and 8.
Specifications
Ratings:
Rated Voltage: 3.6kV Features and Benefits
Rated Current: 3.15 - 10A Cool running, low watts loss and power dissipation
Breaking Capacity: 50kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with BS 2692-1 and Silver elements ensuring high conductivity and low
IEC 60282-1 power (revenue) loss
100% X-ray, all our Medium Voltage fuse links are
Time-Current Curves and Cut-Off Curves: see list page X-rayed ensuring the highest possible standards are
120 and data on CD at the back of the catalogue. maintained
Ferrule fuse links tag type ‘A’ shown in full lines and ‘22’: tag shown in dotted lines
Part Numbers
* The last letter of the ordering code on these items is normally either “A” or “22”, please refer to how to order page 7 and 8.
Specifications
Ratings:
Rated Voltage: 5.5kV Features and Benefits
Rated Current: 0.5 - 5A Cool running, low watts loss and power dissipation
Breaking Capacity: 50kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with BS 2692-1 and Silver elements ensuring high conductivity and low
IEC 60282-1 power (revenue) loss
100% X-ray, all our Medium Voltage fuse links are
Time-Current Curves and Cut-Off Curves: see list page X-rayed ensuring the highest possible standards are
120 and data on CD at the back of the catalogue. maintained
Ferrule fuse links tag type ‘A’ shown in full lines and ‘22’: tag shown in dotted lines
Part Numbers
Specifications
Ratings:
Rated Voltage: 7.2kV Features and Benefits
Rated Current: 3.15 - 6.3A Cool running, low watts loss and power dissipation
Breaking Capacity: 45kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with BS 2692-1 and Silver elements ensuring high conductivity and low
IEC 60282-1 power (revenue) loss
100% X-ray, all our Medium Voltage fuse links are
Time-Current Curves and Cut-Off Curves: see list page X-rayed ensuring the highest possible standards are
120 and data on CD at the back of the catalogue. maintained
Ferrule fuse links tag type ‘A’ shown in full lines and ‘22’: tag shown in dotted lines
Part Numbers
Joule Integral (I2t)
Breaking
Rated Current Capacity Minimum Maximum
Cold Resistance Length Diameter Weight
In (A) I1 (kA) Pre-Arcing Operating
Part Number mΩ mm mm kg
7.2ABWN*3.15 3.15 45 0.614 6.3 x 100 4 x 101 142 25.4 0.19
7.2ABWN*6.3 6.3 45 0.24 4.8 x 101 3.1 x 102 142 25.4 0.19
7.2ABCN*3.15 3.15 45 0.614 6.3 x 100 4 x 101 195 25.4 0.245
7.2ABCN*6.3 6.3 45 0.24 4.8 x 101 3.1 x 102 195 25.4 0.245
7.2AMWNA0.5E 0.5 50 47.5 0.2 x100 1 x 100 142 20.6 0.19
7.2AMWNA1.0E 1 50 23.3 1.2 x 100 4.8 x 100 142 20.6 0.19
7.2AMWNA2.0E 2 50 1.37 1.7 x 100 8.8 x 100 142 20.6 0.19
7.2AMWNA3.0E 3 50 0.77 4 x 100 2.7 x 101 142 20.6 0.19
7.2AMWNA4.0E 4 50 0.428 1.2 x 101 5.1 x 101 142 20.6 0.19
7.2AMWNA5.0E 5 50 0.274 2.8 x 101 1.4 x 102 142 20.6 0.19
7.2OBCN*3.15 3.15 45 0.614 6.3 x 100 4 x 101 195 25.4 0.245
7.2OBCN*6.3 6.3 45 0.24 4.8 x 101 3.1 x 102 195 25.4 0.245
7.2OBWN*3.15 3.15 45 0.614 6.3 x 100 4 x 101 142 25.4 0.19
7.2OBWN*6.3 6.3 45 0.24 4.8 x 101 3.1 x 102 142 25.4 0.19
* The last letter of the ordering code on these items is normally either “A” or “22”, please refer to how to order page 7 and 8.
Specifications
Ratings:
Rated Voltage: 12kV Features and Benefits
Rated Current: 3.15A Cool running, low watts loss and power dissipation
Breaking Capacity: 45kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with BS 2692-1 and Silver elements ensuring high conductivity and low
IEC 60282-1 power (revenue) loss
100% X-ray, all our Medium Voltage fuse links are
Time-Current Curves and Cut-Off Curves: see list page X-rayed ensuring the highest possible standards are
120 and data on CD at the back of the catalogue. maintained
Ferrule fuse links tag type ‘A’ shown in full lines and ‘22’: tag shown in dotted lines
Part Numbers
Joule Integral (I2t)
Breaking
Rated Current Capacity Minimum Maximum
Cold Resistance Length Diameter Weight
In (A) I1 (kA) Pre-Arcing Operating
Part Number mΩ mm mm kg
12ABCN*3.15 3.15 45 1.21 6.3 x 100 1.8 x 101 195 25.4 0.245
12OBCN*3.15 3.15 45 1.21 6.3 x 100 1.8 x 101 195 25.4 0.245
* The last letter of the ordering code on these items is normally either “A” or “22”, please refer to how to order page 7 and 8.
Specifications
Ratings:
Rated Voltage: 15.5kV Features and Benefits
Rated Current: 3.15A Cool running, low watts loss and power dissipation
Breaking Capacity: 32kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with BS 2692 and Silver elements ensuring high conductivity and low
IEC 60282-1 power (revenue) loss
100% X-ray, all our Medium Voltage fuse links are
Time-Current Curves and Cut-Off Curves: see list page X-rayed ensuring the highest possible standards are
120 and data on CD at the back of the catalogue. maintained
Ferrule fuse links tag type ‘A’ shown in full lines and ‘22’: tag shown in dotted lines
Part Numbers
Joule Integral (I2t)
Breaking
Rated Current Capacity Minimum Maximum
Cold Resistance Length Diameter Weight
In (A) I1 (kA) Pre-Arcing Operating
Part Number mΩ mm mm kg
15.5ABFN*3.15 3.15 32 1.24 6.3 x 100 4.0 x 101 254 25.4 0.31
15.5OBFN*3.15 3.15 32 1.24 6.3 x 100 4.0 x 101 254 25.4 0.31
* The last letter of the ordering code on these items is normally either “A” or “22”, please refer to how to order page 7 and 8.
Specifications
Ratings:
Rated Voltage: 17.5kV Features and Benefits
Rated Current: 3.15A Cool running, low watts loss and power dissipation
Breaking Capacity: 35kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with BS 2692 and Silver elements ensuring high conductivity and low
IEC 60282-1 power (revenue) loss
100% X-ray, all our Medium Voltage fuse links are
Time-Current Curves and Cut-Off Curves: see list page X-rayed ensuring the highest possible standards are
120 and data on CD at the back of the catalogue. maintained
Ferrule fuse links tag type ‘A’ shown in full lines and ‘22’: tag shown in dotted lines
Part Numbers
Joule Integral (I2t)
Breaking
Rated Current Capacity Minimum Maximum
Cold Resistance Length Diameter Weight
In (A) I1 (kA) Pre-Arcing Operating
Part Number mΩ mm mm kg
17.5ABGN*3.15 3.15 35 1.45 6.3 x 100 4.0 x 101 359 25.4 0.43
17.5OBGN*3.15 3.15 35 1.45 6.3 x 100 4.0 x 101 359 25.4 0.43
* The last letter of the ordering code on these items is normally either “A” or “22”, please refer to how to order page 7 and 8.
Specifications
Ratings:
Rated Voltage: 24kV Features and Benefits
Rated Current: 3.15A Cool running, low watts loss and power dissipation
Breaking Capacity: 25kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with BS 2692 and Silver elements ensuring high conductivity and low
IEC 60282-1 power (revenue) loss
100% X-ray, all our Medium Voltage fuse links are
Time-Current Curves and Cut-Off Curves: see list page X-rayed ensuring the highest possible standards are
120 and data on CD at the back of the catalogue. maintained
Ferrule fuse links tag type ‘A’ shown in full lines and ‘22’: tag shown in dotted lines
Part Numbers
Joule Integral (I2t)
Breaking
Rated Current Capacity Minimum Maximum
Cold Resistance Length Diameter Weight
In (A) I1 (kA) Pre-Arcing Operating
Part Number mΩ mm mm kg
24ABGN*3.15 3.15 25 2 6.3 x 100 4.0 x 101 359 25.4 0.43
24OBGN*3.15 3.15 25 2 6.3 x 100 4.0 x 101 359 25.4 0.43
* The last letter of the ordering code on these items is normally either “A” or “22”, please refer to how to order page 7 and 8.
Specifications
Ferrule fuse links tag type ‘A’ shown in full lines and ‘22’: tag shown in dotted lines
Part Numbers
Joule Integral (I2t)
Breaking
Rated Current Capacity Minimum Maximum
Cold Resistance Length Diameter Weight
In (A) I1 (kA) Pre-Arcing Operating
Part Number mΩ mm mm kg
36OBGN*3.15 3.15 31.5 2.05 1.2 x 101 7.7 x 101 359 25.4 0.43
* The last letter of the ordering code on these items is normally either “A” or “22”, please refer to how to order page 7 and 8.
Specifications
Ratings:
Rated Voltage: 3.6kV Features and Benefits
Rated Current: 2A Cool running, low watts loss and power dissipation
Breaking Capacity: 50kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with IEC 60282-1 Silver elements ensuring high conductivity and low
power (revenue) loss
Time-Current Curves and Cut-Off Curves: see list page 100% X-ray, all our Medium Voltage fuse links are
120 and data on CD at the back of the catalogue. X-rayed ensuring the highest possible standards are
maintained
Dimensions (mm):
Typical Applications
Fuse link Length A Protection of auxiliary transformers
reference mm
3.6CAV 220
Part Numbers
Joule Integral (I2t)
Breaking
Rated Current Capacity Minimum Maximum
Cold Resistance Length Diameter Weight
In (A) I1 (kA) Pre-Arcing Operating
Part Number mΩ mm mm kg
3.6CAV2 2 50 0.492 6.2 x 100 1.8 x 101 220 41.3 0.7
Specifications
Ratings:
Rated Voltage: 5.5kV Features and Benefits
Rated Current: 0.5 - 15A Cool running, low watts loss and power dissipation
Breaking Capacity: 50kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with IEC 60282-1 Silver elements ensuring high conductivity and low
power (revenue) loss
Time-Current Curves and Cut-Off Curves: see list page 100% X-ray, all our Medium Voltage fuse links are
120 and data on CD at the back of the catalogue. X-rayed ensuring the highest possible standards are
maintained
Dimensions (mm):
Typical Applications
Fuse link Length A Protection of auxiliary transformers
reference mm
CAV and CAVH 187
Part Numbers
CAV fuse links are suitable for indoor use in air only. Type CAVH fuse links are fitted with striker pins which may be used for indication purposes.
Specifications
Ratings:
Rated Voltage: 7.2kV Features and Benefits
Rated Current: 2 - 10A Cool running, low watts loss and power dissipation
Breaking Capacity: 40kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with IEC 60282-1 Silver elements ensuring high conductivity and low
power (revenue) loss
Time-Current Curves and Cut-Off Curves: see list page 100% X-ray, all our Medium Voltage fuse links are
120 and data on CD at the back of the catalogue. X-rayed ensuring the highest possible standards are
maintained
Dimensions (mm):
Typical Applications
Fuse link Length A Protection of auxiliary transformers
reference mm
CAV 220
Part Numbers
Joule Integral (I2t)
Breaking
Rated Current Capacity Minimum Maximum
Cold Resistance Length Diameter Weight
In (A) I1 (kA) Pre-Arcing Operating
Part Number mΩ mm mm kg
7.2CAV2 2 40 0.893 6.2 x 100 1.8 x 101 220 41.3 0.7
7.2CAV4 4 40 0.503 2.0 x 101 5.7 x 101 220 41.3 0.7
7.2CAV6 6 40 0.321 4.8 x 101 1.4 x 102 220 41.3 0.7
7.2CAV10 10 40 0.215 1.1 x 102 3.2 x 102 220 41.3 0.7
Specifications
Ratings:
Rated Voltage: 12kV Features and Benefits
Rated Current: 2A Cool running, low watts loss and power dissipation
Breaking Capacity: 40kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with IEC 60282-1 Silver elements ensuring high conductivity and low
power (revenue) loss
Time-Current Curves and Cut-Off Curves: see list page 100% X-ray, all our Medium Voltage fuse links are
120 and data on CD at the back of the catalogue. X-rayed ensuring the highest possible standards are
maintained
Dimensions (mm):
Fuse link Length A Typical Applications
reference mm Protection of auxiliary transformers
CAV 220
Part Numbers
Specifications
Ratings:
Rated Voltage: 15.5kV Features and Benefits
Rated Current: 0.5 - 7A Cool running, low watts loss and power dissipation
Breaking Capacity: 80kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with IEC 60282-1 Silver elements ensuring high conductivity and low
power (revenue) loss
Time-Current Curves and Cut-Off Curves: see list page 100% X-ray, all our Medium Voltage fuse links are
120 and data on CD at the back of the catalogue. X-rayed ensuring the highest possible standards are
maintained
Dimensions (mm):
Fuse link Length A
Typical Applications
reference mm Protection of auxiliary transformers
CAV and CAVH 327
Part Numbers
CAV fuse links are suitable for indoor use in air only. Type CAVH fuse links are fitted with striker pins which may be used for indication purposes.
Specifications
Ratings:
Rated Voltage: 17.5kV Features and Benefits
Rated Current: 2 - 10A Cool running, low watts loss and power dissipation
Breaking Capacity: 40kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with IEC 60282-1 Silver elements ensuring high conductivity and low
power (revenue) loss
Time-Current Curves and Cut-Off Curves: see list page 100% X-ray, all our Medium Voltage fuse links are
120 and data on CD at the back of the catalogue. X-rayed ensuring the highest possible standards are
maintained
Dimensions (mm):
Fuse link Length A Typical Applications
reference mm Protection of auxiliary transformers
CAV 220
Part Numbers
Specifications
Ratings:
Rated Voltage: 24kV Features and Benefits
Rated Current: 2 - 4A Cool running, low watts loss and power dissipation
Breaking Capacity: 40kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with IEC 60282-1 Silver elements ensuring high conductivity and low
power (revenue) loss
Time-Current Curves and Cut-Off Curves: see list page 100% X-ray, all our Medium Voltage fuse links are
120 and data on CD at the back of the catalogue. X-rayed ensuring the highest possible standards are
maintained
Dimensions (mm):
Fuse link Length A Typical Applications
reference mm Protection of auxiliary transformers
CAV 340
Part Numbers
Specifications
Ratings:
Rated Voltage: 36kV Features and Benefits
Rated Current: 2 - 4A Cool running, low watts loss and power dissipation
Breaking Capacity: 40kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with IEC 60282-1 Silver elements ensuring high conductivity and low
power (revenue) loss
Time-Current Curves and Cut-Off Curves: see list page 100% X-ray, all our Medium Voltage fuse links are
120 and data on CD at the back of the catalogue. X-rayed ensuring the highest possible standards are
maintained
Dimensions (mm):
Fuse link Length A Typical Applications
reference mm Protection of auxiliary transformers
CAV 440
Part Numbers
Specifications
Ratings:
Rated Voltage: 38kV Features and Benefits
Rated Current: 0.5 - 4A Cool running, low watts loss and power dissipation
Breaking Capacity: 40kA thanks to the M-effect ensuring high levels of substation
utilisation
Agency Information: Comply with IEC 60282-1 Silver elements ensuring high conductivity and low
power (revenue) loss
Time-Current Curves and Cut-Off Curves: see list page 100% X-ray, all our Medium Voltage fuse links are
120 and data on CD at the back of the catalogue. X-rayed ensuring the highest possible standards are
maintained
Dimensions (mm):
Fuse link Length A Typical Applications
reference mm Protection of auxiliary transformers
CAV and CAVH 440
Part Numbers
CAV fuse links are suitable for indoor use in air only. Type CAVH fuse links are fitted with striker pins which may be used for indication purposes.