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Five glass tube fuses with silver metal end caps

Bussmann

Bussmann GMD-150-R Glass Fuse 150mA 250V AC 5 Pack

SKU CH-7AEQ-6C2E5

Pack of five 20 mm glass time-delay fuses rated 150 mA at 250 V AC with 100 A interrupt capacity

  • Time-delay characteristic prevents nuisance trips on inrush current
  • 150 mA rating at 250 V AC protects low-power circuits
  • High interrupt rating of 100 A at 250 V AC and 10 kA at 125 V AC
  • Compact 20 mm by 5 mm cylindrical glass body fits standard holders
  • Pack of five provides ready spares for maintenance

GMD-Series 150mA Glass Fuses

These 5 mm by 20 mm cylindrical glass fuses carry a 150 mA rating at 250 V AC with a time-delay characteristic. They suit low-current protection in instrumentation, control circuits and similar equipment where nuisance tripping must be avoided.

Interrupt Ratings and Equivalents

Each fuse interrupts 100 A at 250 V AC and 10 kA at 125 V AC, matching the GMD, Littelfuse 239 and Mersen GSC series. The pack of five provides direct replacements for those part numbers without circuit redesign.

Fuse-Block Compatibility and Installation

The non-rejection body fits HTB-series fuse blocks and standard 5 mm clips; no special tool is required. Verify the holder voltage rating matches 250 V AC and ensure the time-delay curve suits the load, otherwise the fuse may open too slowly or too quickly for the application.

How it compares

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Price $19.99
Cheaper than about 79% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameEATON BUSSMANN

Questions about this item

Will the glass body of the GMD-150-R fuse need periodic inspection or replacement?

The glass body is a single-use element; once it interrupts a fault at 100 A or 10 kA it must be replaced with another fuse from the 5-pack.

What interrupt rating limits the GMD-150-R during a sustained over-current event?

The fuse opens at 100 A when rated at 250 V AC and at 10 kA when rated at 125 V AC.

Does the GMD-150-R generate noticeable heat when carrying its 150 mA rating continuously?

At 150 mA and 250 V AC the fuse runs cool; measurable warmth only appears as current approaches the 100 A interrupt threshold.

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