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Eaton Bussmann BK1S5051R Ceramic Time-Delay Fuse

The 505 Series time-delay ceramic tube fuses are designed for high breaking capacity and reliable circuit protection in industrial applications. Available with optional axial leads, these fuses feature ceramic tube construction with silver-plated endcaps (500mA-800mA). They provide excellent electrical performance, including rated voltage of 250V AC, interrupting ratings up to 1500A, and are recognized by numerous agencies like UL, CSA, VDE, SEMKO, and BSI. These fuses are suitable for electrical systems requiring fast and reliable overload protection, featuring flexible flouropolymer sleeves and nickel-plated brass endcaps for durability.

Authorized Distributors
Source:Newark
Part No:BK1-S505-1-R
Stock:1237
Inv Date:06-12-2026
Price: Unit price: $1.94
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Source:DigiKey
Part No:BK1-S505-1-R
Stock:115
Inv Date:06-12-2026
Price: Unit price: $1.74
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Source:DigiKey
Part No:BK1/S505-1-R
Stock:115
Inv Date:06-12-2026
Price: Unit price: $1.74
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Part No:BK1/S505-1-R
Stock:1571
Inv Date:06-13-2026
Price: Unit price: $1.44
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Part No:BK1/S505-1-R
Stock:0
Inv Date:06-12-2026
Price: Unit price: $1.92
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Part No:BK1/S505-1-R
Stock:102336
Inv Date:06-12-2026
Price: Unit price: $1.21
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Part No:BK1/S505-1-R
Stock:102336
Inv Date:06-12-2026
Price: Unit price: $1.21
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Part No:BK1-S505-1-R
Stock:0
Inv Date:06-12-2026
Price: Unit price: $0.112
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Eaton Bussmann BK1S5051R Ceramic Time-Delay Fuse Specifications:

  • Voltage Rating: 250V AC
  • Interrupting Rating: up to 1500A
  • Rated Current: 500mA to 12A
  • Construction: Ceramic tube with silver-plated endcaps
  • Lead Wire Length: 19.05mm (TR2 packaging)
  • Lead Diameter: 0.81mm
  • Endcap Material: Nickel-plated brass
  • Optional Sleeve: Flexible flouropolymer (UL flammability rating W-1)
  • Agency Certifications: UL Recognized, CSA, VDE, SEMKO, BSI
  • Design Standards: IEC 60127-2, UL, CSA, VDE compliant

Buy the Cooper Bussmann BK1S5051R – Reliable Ceramic Time-Delay Fuses for Industrial Applications

Order the Cooper Bussmann BK1S5051R ceramic time-delay fuse online today and ensure your electrical systems are protected with high-quality, reliable fuses. These fuses feature ceramic tubes, silver-plated endcaps, and compliance with global standards like UL and CSA. Perfect for industrial applications, they offer excellent overload protection, rapid response, and durable construction with nickel-plated brass endcaps and a flexible flouropolymer sleeve option. Easy to install, UL recognized, and designed for high interrupting ratings, these fuses help maintain system safety and reliability.

Buy Cooper Bussmann BK1S5051R now and experience unmatched reliability and performance with high breaking capacity ceramic fuses for industrial electrical systems.

Frequently Asked Questions

Where can I buy Eaton Bussmann BK1S5051R?

You can click on the BUY or RFQ button to purchase BK1S5051R from an authorized Eaton Bussmann distributor.

How do I troubleshoot issues or seek technical support for part BK1S5051R?

You can download the BK1S5051R datasheet or visit the Eaton Bussmann website for support.

Who is the manufacturer of BK1S5051R?

Eaton Bussmann

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