SCHURTER 8020.5083 Ceramic Fuse Cartridge - Equivalent & Substitute Parts

Part Overview

The SCHURTER 8020.5083 is a 32A ceramic fuse cartridge rated for 440V AC and 63V DC operation. This fast-blow cartridge fuse requires a compatible holder for installation and is designed for circuit protection in industrial and commercial applications. The part maintains active product status with 830 units in current inventory. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when system requirements permit substitution based on electrical and mechanical compatibility.

Substiute Parts

8020.5083

SCHURTER Inc.In Stock: 8938020.5083 Datasheet

Current PartRFQ

BK-ADC-30-R

Eaton - Electronics DivisionIn Stock: 1296BK-ADC-30-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 8020.5083 with the Eaton BK-ADC-30-R is permissible based on the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Both parts are ceramic cartridge fuses with fast-blow response characteristics
• Both are rated for 500V AC minimum, which exceeds the 440V AC requirement of the main part
• Both provide 20 kA DC breaking capacity, meeting the DC protection requirement
• Current rating differential: The substitute is rated 30A versus the main part's 32A. This represents a 6.25% reduction in current capacity and must be evaluated against circuit requirements

Mechanical Compatibility Criteria:

• Both fuses use cartridge form factor requiring a holder for installation
• Physical dimensions are nearly identical: 0.252" Dia x 1.252" L (6.40mm x 31.80mm) for the substitute versus 0.250" Dia x 1.252" L (6.35mm x 31.80mm) for the main part
• Diameter tolerance of 0.002" (0.05mm) is within standard mechanical clearance for cartridge fuse holders

Compliance and Certification:

• Both parts hold cURus approval
• The substitute additionally carries UL certification
• Both are ROHS3 compliant and REACH unaffected

Parameter Comparison

Engineering Selection Recommendations

The Eaton BK-ADC-30-R serves as a functional substitute for the SCHURTER 8020.5083 when circuit design permits operation at the lower 30A current rating. The substitute provides enhanced electrical performance through higher AC breaking capacity (30 kA versus 1.5 kA) and significantly higher DC voltage rating (500V versus 63V), making it suitable for applications requiring greater fault protection margins.

Selection of the substitute should be contingent upon verification that the protected circuit operates at or below 30A nominal current. The 2A reduction in current rating represents the primary electrical constraint for substitution. Both parts maintain identical fast-blow response characteristics and DC breaking capacity, ensuring equivalent protection speed and fault interruption capability.

Both parts hold active product status with current manufacturing support and inventory availability. The substitute carries dual certification (cURus and UL) compared to the main part's cURus certification alone, providing additional regulatory compliance documentation for applications requiring UL-listed components.

Frequently Asked Questions (FAQ)

Q: Can the Eaton BK-ADC-30-R directly replace the SCHURTER 8020.5083 in all applications?

A: Direct replacement is permissible only when the circuit is designed for 30A operation or lower. The 2A current rating reduction is the limiting factor. If the circuit requires the full 32A capacity of the original part, substitution is not appropriate.

Q: Are the physical dimensions compatible with existing fuse holders?

A: Yes. The diameter difference of 0.002 inches (0.05mm) between the two cartridges falls within standard mechanical tolerance for ceramic cartridge fuse holders. The length dimension is identical at 1.252 inches (31.80mm). Both parts require a compatible cartridge fuse holder for installation.

Q: What is the significance of the voltage rating differences?

A: The Eaton substitute is rated for 500V AC and 500V DC, compared to the SCHURTER part's 440V AC and 63V DC ratings. The substitute's higher ratings provide additional safety margin in applications operating at the original part's rated voltages. However, the substitute must not be used in circuits exceeding its rated voltage specifications.

Q: Do both parts have equivalent breaking capacity?

A: No. The DC breaking capacity is identical at 20 kA for both parts. However, the AC breaking capacity differs significantly: the SCHURTER part is rated 1.5 kA AC, while the Eaton substitute is rated 30 kA AC. The substitute provides substantially higher fault interruption capability for AC circuits.

Q: Are there compliance or certification differences between the two parts?

A: Both parts are ROHS3 compliant and hold cURus approval. The Eaton substitute additionally carries UL certification. Both are REACH unaffected. The additional UL listing on the substitute may be advantageous for applications requiring dual-agency certification documentation.

Q: What is the melting I²t difference, and does it affect substitution?

A: The SCHURTER part specifies 4750 melting I²t, while the Eaton substitute specifies 270 melting I²t. This indicates the substitute will melt at a lower thermal energy level, resulting in faster response to overcurrent conditions. This characteristic is consistent with the substitute's lower current rating and does not prevent substitution when circuit current is 30A or below.