Bussmann BK/MDA-4-R — 4A Slo-Blo Ceramic Fuse, 5 per Pack
The Bussmann BK/MDA-4-R is a 4 amp Slo-Blo (time-delay) ceramic fuse supplied in a 5 per pack configuration. It provides reliable overcurrent protection for circuits that experience temporary inrush or surge currents where fast-acting fuses may nuisance-trip. Ceramic construction offers thermal stability and robust interrupting characteristics for demanding applications. Tri-Tek Electronics is an authorized distributor for Bussmann and supplies this part with full manufacturer warranty support and nationwide availability. Stock is offered for installers, OEM customers, and MRO operations needing consistent, field-proven fuse protection.
Key Features:
- Rated current: 4 A
- Slo-Blo (time-delay) performance for temporary surges and inrush currents
- Ceramic construction for thermal stability and durability
- Pack quantity: 5 per pack
Specifications:
- Manufacturer: Bussmann
- MPN: BK/MDA-4-R
- Current rating: 4 A
- Type: Slo-Blo (time-delay), ceramic fuse
- Quantity: 5 per pack
Applications: Use where time-delay overcurrent protection is required—typical for circuits subject to momentary surges or motor/transformer inrush. Commonly stocked for field installers replacing fuses, OEMs integrating fuses into equipment, and MRO teams maintaining spare inventories.






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