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Eaton Bussmann BKS5054R circuit protection fuse

This 4-amp, 250V slow blow fuse features a cylindrical ceramic tube measuring 5 x 20mm, suitable for circuit protection in industrial and electronic applications. It offers high breaking capacity, time-delay characteristics, and flexible optional axial leads for versatile mounting. Constructed with nickel-plated brass endcaps and UL, CSA, VDE, SEMKO, and other certifications, it ensures reliable performance and safety compliance. Ideal for protecting circuits against overcurrent surges, this fuse is designed to meet IEC 60127-2 standards with various current ratings, sizes, and encasing options for different electrical environments.

Authorized Distributors
Source:Newark
Part No:BK/S505-4-R
Stock:704
Inv Date:06-11-2026
Price: Unit price: $5.77
Buy/RFQ:
Source:DigiKey
Part No:BK-S505-4-R
Stock:893
Inv Date:06-11-2026
Price: Unit price: $2.49
Buy/RFQ:
Source:DigiKey
Part No:BK/S505-4-R
Stock:893
Inv Date:06-11-2026
Price: Unit price: $2.49
Buy/RFQ:
Part No:BK/S505-4-R
Stock:151
Inv Date:06-12-2026
Price: Unit price: $4.5
Buy/RFQ:
Part No:BK/S505-4-R
Stock:554
Inv Date:06-11-2026
Price: Unit price: $5.34
Buy/RFQ:
Part No:BK/S505-4-R
Stock:1172
Inv Date:06-11-2026
Price: Unit price: $7.38
Buy/RFQ:
Part No:BK/S505-4-R
Stock:1172
Inv Date:06-11-2026
Price: Unit price: $7.38
Buy/RFQ:

Eaton Bussmann BKS5054R circuit protection fuse Specifications:

  • Physical Size: 5 x 20mm cylindrical ceramic tube
  • Rated Voltage: 250 VAC
  • Rated Current: 4 Amps
  • Construction: Ceramic tube with silver-plated endcaps and nickel-plated brass endcaps
  • Time-Delay: Yes, high breaking capacity
  • Optional Leads: Axial copper tinned wire with nickel-plated brass overcaps
  • Certifications: UL Recognized, CSA, VDE, SEMKO, BSI, IMQ, PESWET, CCC
  • Rated Resistance: 0.0185Ω at 4A, typical pre-arching and voltage drop specified
  • Standards: Designed according to IEC 60127-2 (500mA-10A)
  • Packaging Options: BK (carton), BK1 (poly bag), TR2 (reel, 19.05mm lead wire length)

Buy the Cooper Bussmann BKS5054R – Reliable Slow Blow Fuse for Industrial Applications

Secure your electrical systems with the Cooper Bussmann BKS5054R fuse, designed for high capacity industrial circuit protection. This durable 4-amp, 250V fuse features a cylindrical ceramic tube measuring 5 x 20mm, with high breaking capacity, time-delay function, and optional axial leads for flexible mounting. Crafted with quality materials and certifications such as UL and VDE, it ensures safety, reliability, and compliance in demanding environments. Order online today and safeguard your circuits with trusted performance and fast delivery.

Buy Cooper Bussmann BKS5054R fuse now and experience unmatched reliability and performance in circuit protection and overcurrent safeguarding.

Frequently Asked Questions

Where can I buy Eaton Bussmann BKS5054R?

You can click on the BUY or RFQ button to purchase BKS5054R from an authorized Eaton Bussmann distributor.

How do I troubleshoot issues or seek technical support for part BKS5054R?

You can download the BKS5054R datasheet or visit the Eaton Bussmann website for support.

Who is the manufacturer of BKS5054R?

Eaton Bussmann

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