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Cylindrical 20 amp 250VAC Class H fuse with melamine body

GEM

GEM 20 Amp 250VAC Low Voltage Renewable Class H Fuse

SKU CH-1JBQ-3SVCN

20 amp Class H renewable fuse rated 250 VAC with 10 kA interrupt capacity

  • Selling UnitEach
  • 20 Amp rating protects circuits up to 250VAC
  • 10kA interrupt rating handles high fault currents safely
  • Renewable Class H design allows element replacement after operation
  • Melamine body material resists heat and electrical tracking
  • Cylindrical non-rejection body fits standard fuse holders

20 A 250 VAC Renewable Class H Fuse

This renewable Class H fuse is rated 20 A at 250 VAC for low-voltage circuits. It uses a melamine body in a cylindrical non-rejection style. The interrupt rating is 10 kA at 250 VAC. It is functionally equal to Ferraz RF, Littelfuse RLN and Bussmann REN-20 types.

Capacity and headroom

The fuse carries 20 A continuously and opens on sustained overcurrent. It has no time-delay or dual-element construction so it reacts quickly to faults. Headroom ends at the rated current; prolonged loads above 20 A will cause opening. The 10 kA interrupt rating limits use to circuits where prospective short-circuit current stays below that value.

Practical limits of the Class H interface

Class H fuses fit standard low-voltage fuse blocks but lack a rejection feature. This prevents physical blocking of higher-rated fuses in the same holder. The 250 VAC rating restricts application to circuits at or below that voltage. The 10 kA interrupt rating means the fuse cannot safely clear faults on systems capable of delivering more short-circuit current.

Highlights

  • 20 Amp rating protects circuits up to 250VAC
  • 10kA interrupt rating handles high fault currents safely
  • Renewable Class H design allows element replacement after operation
  • Melamine body material resists heat and electrical tracking
  • Cylindrical non-rejection body fits standard fuse holders

Specifications

Selling UnitEach

Questions about this item

Will the 250VAC 20A Class H fuse fit the same holder as my existing Bussmann REN-20?

Yes, it is functionally equal to the Bussmann REN-20 with identical cylindrical non-rejection body style and 2 inch length

How do I verify the 10kA interrupt rating is intact after installation?

The melamine body shows no discolouration or cracking when the fuse has operated correctly within its 250VAC rating

Does the single fuse include any spare renewable elements or links?

The package quantity is one complete fuse; renewable link replacements are sold separately

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