MEDIUM VOLTAGE BS AIR FUSE 12AKGHF

Product Description

The 12AKGHF (often written as 12AKGHF series, including variants like 12AKGHFxx) is a medium voltage British Standard (BS) air fuse-link designed for primary protection of transformers and medium-voltage distribution systems. The full code 12AKGHF generally belongs to Eaton Bussmann’s 12 kV fuse family used in industrial power networks for reliable fault interruption.

The specific variant 12AKGHF is part of the AKGH family, which is engineered for high rupturing capacity and fast fault clearance in medium voltage switchgear assemblies.

Key Features

• Medium voltage BS air fuse-link (12 kV class)
• High rupturing capacity (HRC) current-limiting protection
• Designed for transformer and feeder protection
• Striker pin mechanism for trip indication
• British Standard compliant (BS 2692 / IEC 60282-1 family)
• Sand-filled body for arc quenching
• Cylindrical ceramic housing for high insulation strength
• Reliable operation under high fault currents
• Suitable for indoor/outdoor MV switchgear systems
• Clip-in mounting for fuse switch disconnector units
• Stable performance in harsh electrical environments
• Fast-acting protection against short-circuit faults

Specifications

• Product Type: Medium Voltage Air Fuse-Link
• Model: 12AKGHF (series family)
• Rated Voltage: 12 kV AC
• Rated Current: (varies by suffix, typically 20A–125A depending on variant)
• Breaking Capacity: Up to 40 kA (typical BS HRC class)
• Standard: BS 2692-1 / IEC 60282-1
• Construction: Ceramic / sand-filled HRC fuse body
• Diameter: ~50–76 mm (variant dependent)
• Length: ~359–461 mm (variant dependent)
• Mounting Type: Clip-in fuse base
• Indicator: Striker pin type (mechanical trip indicator)
• Application: Transformer primary protection, MV switchgear, distribution feeders
• Voltage Type: AC
• Operating Principle: Current-limiting HRC fuse operation