aM NH fuse links

Intended for short circuit protection in motors and transformers

Date: April 1, 2014 Category: ,

aM NH fuse-links

Knife type (NH) fuse-links aM class for motor protection, with top indicator. These high breaking capacity fuse-links are intended for short circuit protection in motors, transformer and other load with high inrush currents, with rated voltages up to 500V AC (+10%) and 690V AC (+5%). The rated breaking capacity is 80 kA at 690V or 120 kA at 500V. Excellent protection of switchgear (contactor, thermal switch) due to the good current limiting capability and low I2t values. These fuse links must be associated to an overload device protection (thermal switch). The range comprises fuse-links from size NH000 up to NH4, with rated currents from 6A up to 1250A. Compact versions in low rated currents of every size. Manufactured with ceramic body with high withstand to internal pressure and thermal shock, that allows a high breaking capacity. Melting elements are silver plated in order to avoid the aging and thus keep unalterable the electric characteristics. Knife contacts are made of silver plated copper or brass. They are manufactured according to IEC/EN60269 and VDE0636 Standards and comply with RoHS directive.

SIZES

NH000

690V

RATED VOLTAGE
690V

BREAKING CAPACITY
80kA

NH00

500V
690V

RATED VOLTAGE
690V
500V (125-160A)

BREAKING CAPACITY
80kA@690V
120kA@500V

NH0

500V
690V

RATED VOLTAGE
690V
500V (125-160A)

BREAKING CAPACITY
80kA@690V
120kA@500V

NH0S

500V
690V
WITH STRIKER

RATED VOLTAGE
690V
500V (200A)

BREAKING CAPACITY
80kA@690V
120kA@500V

NHC1

690V

RATED VOLTAGE
690V

BREAKING CAPACITY
80kA

NH1

500V
690V
WITH STRIKER

RATED VOLTAGE
690V
500V (224-250A)

BREAKING CAPACITY
80kA@690V
120kA@500V

NHC2

690V

RATED VOLTAGE
690V

BREAKING CAPACITY
80kA

NH2

500V
690V
WITH STRIKER

RATED VOLTAGE
690V
500V (400A)

BREAKING CAPACITY
80kA@690V
120kA@500V

NHC3

690V

RATED VOLTAGE
690V

BREAKING CAPACITY
80kA

NH3

500V
690V
WITH STRIKER

RATED VOLTAGE
690V
500V (630A)

BREAKING CAPACITY
80kA@690V
120kA@500V

NH4

500V
690V
WITH STRIKER

RATED VOLTAGE
690V (400A up to 800A)
500V (315A up to 1250A)

BREAKING CAPACITY
80kA@690V
120kA@500V

RATED CURRENT

 

The range comprises fuse-links from size NH000 up to NH4, with rated currents from 6A up to 1250A. Compact versions in low rated currents of every size.

NH000 6-40A
NH00 50-160A
NH0 6-160A
NH0S 125-200A
NHC1 63-100A
NH1 125-250A
NHC2 125-200A
NH2 224-400A
NHC3 315-355A
NH3 400-630A
NH4 400-1250A

 

STANDARDS

 

IEC/EN 60269-1
IEC/EN 60269-2
VDE0636
DIN43620
2002/95/EC RoHS Directive

 

For further information about aM NH fuse links

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