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Eaton Bussmann BK1S5064R Time-Delay Fuse

This is a slow blow, time lag fuse rated at 250 VAC and 4 Amps. It features a cylindrical package with dimensions of 5.20mm by 20.00mm and is designed for use with a holder mounting type. The fuse has a glass tube construction with nickel-plated brass endcaps, complying with IEC standards and various agency approvals. It offers reliable overcurrent protection in electronic and electrical applications, with UL recognition, CSA, VDE, BSI, SEMKO, IMQ, and PSE approvals. Suitable for circuit protection where fast response is not necessary, providing safety and durability.

Authorized Distributors
Source:Newark
Part No:BK1-S506-4-R
Stock:1357
Inv Date:06-11-2026
Price: Unit price: $1.07
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Source:DigiKey
Part No:BK1-S506-4-R
Stock:503
Inv Date:06-11-2026
Price: Unit price: $1.29
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Source:DigiKey
Part No:BK1/S506-4-R
Stock:503
Inv Date:06-11-2026
Price: Unit price: $1.29
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Part No:BK1/S506-4-R
Stock:1504
Inv Date:06-12-2026
Price: Unit price: $1.08
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Part No:BK1/S506-4-R
Stock:0
Inv Date:06-11-2026
Price: Unit price: $1.06
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Part No:BK1/S506-4-R
Stock:8285
Inv Date:06-11-2026
Price: Unit price: $0.7552
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Part No:BK1/S506-4-R
Stock:8285
Inv Date:06-11-2026
Price: Unit price: $0.7552
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Part No:BK1-S506-4-R
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.0905
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Eaton Bussmann BK1S5064R Time-Delay Fuse Specifications:

  • Voltage Rating: 250 VAC
  • Current Rating: 4 Amps
  • Physical Size: 5 x 20mm
  • Construction: Glass tube, nickel-plated brass endcaps
  • Mounting Type: Holder
  • Standards: IEC 60127-2/3
  • Agency Approvals: UL Recognized, CSA, VDE, BSI, SEMKO, IMQ, PSE
  • Rated Voltage: 250 V
  • Rated Current: 4 A
  • Breaking Capacity: Low (Time delay characteristic)
  • Pre-Arcing Time: 2 min at 21.0A, 600 ms at 13.90A, 2 min at 9.24A, etc.
  • Temperature Range: Designed for typical electrical environments
  • Durability: Designed for multiple operation cycles
  • Compliance: Meets international safety standards

Buy the Bussmann BK1S5064R – Reliable 4A Fuse for Industrial Applications

Secure your electrical systems with the Bussmann BK1S5064R fuse, a reliable 4-amp, 250-volt device designed to protect circuits from overcurrent. Its cylindrical glass tube with nickel-plated brass endcaps ensures durability and safety, conforming to IEC 60127-2/3 standards. Perfect for industrial, commercial, and electronic equipment, this fuse features a 5x20mm size for easy replacement and installation. Its extensive agency approvals include UL, CSA, VDE, BSI, SEMKO, IMQ, and PSE, ensuring trusted performance in various safety applications. Choose this dependable fuse for comprehensive circuit protection and peace of mind.

Buy Bussmann BK1S5064R fuse now and experience unmatched reliability and performance in circuit protection for industrial and electronic applications.

Frequently Asked Questions

Where can I buy Eaton Bussmann BK1S5064R?

You can click on the BUY or RFQ button to purchase BK1S5064R from an authorized Eaton Bussmann distributor.

How do I troubleshoot issues or seek technical support for part BK1S5064R?

You can download the BK1S5064R datasheet or visit the Eaton Bussmann website for support.

Who is the manufacturer of BK1S5064R?

Eaton Bussmann

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