Bussmann - 3-6WKFHO355 BRITISH STANDARD MOTOR FUSE LINK, 355A, 3.6KV, 50KA, BS2692, TAG MOUNT, MOTOR STARTING, DOL, 254 x 76 MM

British Standard Motor Fuse Link, 355 Amps, 3.6KV, Tag Mount

This British Standard Motor Fuse Link has been designed to meet the specific requirements necessary for motor protection. Rated at 355 A, 3.6 kV with tag type mounting, complies with BS2692. During the starting cycle of direct on-line motors, the fuse elements will reach a higher temperature than during normal operation. This results in expansion and contraction of the fuse elements and could cause premature operation of the fuse and this motor fuse link minimises the effect. This negates the need to over specify the fuse rating due to high values of motor starting current.

Bussmann motor fuse links operate very quickly under heavy fault currents and low power dissipation ensures low temperature rise, important in multi-tier starters. Motor fuse Links provide short circuit protection in motor circuits to both the motor starter and cables. Overload protection is provided by the motor starter, generally by an overload relay and contactor. Combination striker tripping may also form part of associated equipment which houses the fuse links and motor starters.

For any motor the fuse current rating is determined by magnitude and duration of starting current, except where the starting currents are very light. For Direct-on-line Starting the starting current can usually be taken to be six times the motor’s full load current.

In the case of Assisted Starting the rating of fuse chosen will need to be appreciably greater than the motor running current to allow for restricted cooling inside control gear cubicles, particularly where multi-tier starters are involved.

British Standard Motor Fuse Link Features

• Current rating 355 Amps
• Voltage rating 3.6 kV
• Breaking capacity 50 kA
• Minimum breaking current 820 Amps
• Dimensions Length x Diameter – 254 x 76 mm
• Weight 3.2 kg
• Tag type ‘0’ - BS 2692 Standard