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Eaton Bussmann S500400R Glass Tube Fuses

The S500 series glass tube fuses are fast-acting, low breaking capacity protection devices with physical size of 5 x 20mm. They feature glass tubes with silver-plated or nickel-plated endcaps, suitable for low-current applications from 32.5mA to 10A. These fuses are designed according to IEC 60127-2 standards and are approved by multiple international agencies such as UL, SEMKO, VDE, BSI, IMQ, and PSE. They offer reliable circuit protection with a typical melting time ranging from 50ms to 2 seconds, depending on rated current.

Authorized Distributors
Source:Newark
Part No:S500-400-R
Stock:371
Inv Date:06-11-2026
Price: Unit price: $2.58
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Source:DigiKey
Part No:S500-400-R
Stock:100
Inv Date:06-11-2026
Price: Unit price: $3.488
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Part No:S500-400-R
Stock:83
Inv Date:06-12-2026
Price: Unit price: $7.74
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Part No:S500-400-R
Stock:10
Inv Date:06-11-2026
Price: Unit price: $2.53
Buy/RFQ:
Part No:S500-400-R
Stock:325
Inv Date:06-11-2026
Price: Unit price: $3.84
Buy/RFQ:
Part No:S500-400-R
Stock:325
Inv Date:06-11-2026
Price: Unit price: $3.84
Buy/RFQ:

Eaton Bussmann S500400R Glass Tube Fuses Specifications:

  • Physical Size: 5 x 20mm
  • Endcap Material: Silver-plated or Nickel-plated
  • Rated Voltage: 250V AC
  • Interrupting Ratings: 35A at 250V AC
  • Typical Melting Time: 50ms to 2 seconds
  • Resistance: 0.00014 to 0.005 ohms depending on model
  • Physical Material: Glass tube with endcaps
  • Lead Diameter: 0.8mm (above 6.3A), 1.2mm (up to 6.3A)
  • Approval Agencies: UL, SEMKO, VDE, BSI, IMQ, PSE
  • Lead Wire Length: 19.05mm (TR2 packaging)
  • Applicable Standards: IEC 60127-2
  • Rated Current Range: 32.5mA to 10A
  • Packaging: Reel, carton, or poly bag options
  • Maximum Voltage Drop: 3200mV at rated current
  • Cold Resistance: Approximate 0.014 - 0.28 ohms depending on model

Buy the Buy Cooper S500 Series Part Number 400R Online

Enhance your electrical protection with the high-quality Cooper Glass Tube Fuses from the S500 series. These fast-acting fuses provide low breaking capacity circuit protection, ideal for low-current applications from 32.5mA to 10A. Designed with durable glass tubes and silver or nickel-plated endcaps, they meet IEC standards and carry approvals from UL, VDE, SEMKO, BSI, IMQ, and PSE. Available in various packaging options, these fuses are perfect for electronics, industrial equipment, and safety-critical systems, offering reliable performance when you need it most.

Order your Cooper Series S500 PartNumber 400R today and ensure reliable circuit protection with fast-acting glass tube fuses for your electrical projects.

Frequently Asked Questions

Where can I buy Eaton Bussmann S500400R?

You can click on the BUY or RFQ button to purchase S500400R from an authorized Eaton Bussmann distributor.

How do I troubleshoot issues or seek technical support for part S500400R?

You can download the S500400R datasheet or visit the Eaton Bussmann website for support.

Who is the manufacturer of S500400R?

Eaton Bussmann

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