Overview
The Bussmann HTB 250V fuse holder is a compact, panel-mount cartridge fuse holder designed for industrial electrical protection applications. The HTB Series in-line fuse holder features high temperature/flame retardant thermoplastic construction for added durability. It is UL, CSA, and CE approved, making it suitable for a wide range of industrial control and power distribution systems.
Key Features
- High temperature/flame retardant thermoplastic construction
- UL, CSA, and CE approvals for regulatory compliance
- Rated at 250 VAC with 20 Amps UL / 16 Amps CSA
- Knob-type carrier design for easy fuse access
- 1/4-inch quick-connect terminals for fast installation
- Rear panel hex-nut mounting for secure panel installation
Technical Specifications
The HTB series operates across -55 to 85°C temperature range and features 1/4-inch quick connect in-line rear mounting with rear panel hex nut. The holder withstands 15 to 20 lb-in torque to mounting nut when mounting to panel and is constructed with tin-plated brass terminals and black polycarbonate spacer.
Typical Applications
The Bussmann HTB 250V fuse holder is commonly used in:
- Industrial control panels and switchboards
- Motor control circuits
- Power distribution systems
- Equipment protection in manufacturing facilities
- Test and measurement equipment
Compatibility & Replacements
Compatible With
- 1/4 x 1-1/4 inch cartridge fuses (HTB-26I/22I variants)
- 5 x 20mm cartridge fuses (HTB-26M/22M variants)
- Standard 250V industrial power systems
- Panel-mount applications with 250V circuits
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The HTB series has multiple variants (HTB-22I, HTB-26I, HTB-22M, HTB-26M, HTB-36I, HTB-46I) with different current ratings and fuse sizes. Ensure the specific model matches your application requirements.
Works With
- Standard 250V AC electrical systems
- IEC and UL-rated fusing standards
- Panel-mount industrial control systems
- Any circuit requiring cartridge fuse protection at 250V






