ECSR15 Equivalent & Substitute Parts

Part Overview

The ECSR15 is a 15A 600VAC cartridge fuse manufactured by Eaton - Bussmann Electrical Division. This slow-blow fuse is designed for electrical and industrial applications requiring a cartridge-style fuse that operates in a dedicated holder. The part is currently active in production with 828 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameters.

Substiute Parts

ECSR15

Eaton - Bussmann Electrical DivisionIn Stock: 922ECSR15 Datasheet

Current PartRFQ

FRS-R-15

Eaton - Bussmann Electrical DivisionIn Stock: 984FRS-R-15 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ECSR15 are qualified based on the following criteria:

• Current rating must match: 15A
• AC voltage rating must match or exceed: 600 VAC
• Response time classification must match: Slow Blow
• Fuse class must match: RK5
• Breaking capacity must meet or exceed: 200kA at rated voltage
• Physical form factor must be cartridge type requiring a holder
• Approval agencies must include: CE, CSA, UL
• RoHS compliance status must match: RoHS Compliant

The FRS-R-15 qualifies as a substitute because it maintains all critical electrical parameters for AC operation at the specified current and voltage ratings, shares the same fuse class and response time, and holds equivalent certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the ECSR15 and FRS-R-15 are active products from the same manufacturer with identical certifications (CE, CSA, UL) and RoHS compliance status. Selection between these parts should be based on:

• Physical space constraints: The FRS-R-15 has a shorter length (3.00" vs 5.00"), which may be advantageous in compact installations where the ECSR15's longer form factor cannot be accommodated.
• DC voltage capability: The FRS-R-15 provides additional DC voltage rating (300 VDC) not specified for the ECSR15, making it suitable for applications requiring dual AC/DC operation.
• Electrical performance: Both parts maintain identical AC electrical specifications (15A, 600 VAC, RK5 class, 200kA breaking capacity, slow-blow response).

Frequently Asked Questions (FAQ)

Q: Can the FRS-R-15 be used as a direct replacement for the ECSR15?

A: The FRS-R-15 is electrically equivalent for AC applications at 15A and 600 VAC. However, the physical length differs (3.00" vs 5.00"). Verify that the shorter cartridge length is compatible with your fuse holder before substitution.

Q: What is the significance of the RK5 fuse class?

A: RK5 is a fuse class designation indicating a cartridge fuse with specific current-limiting characteristics and breaking capacity. Both parts share this classification, ensuring equivalent protective performance in the circuit.

Q: Does the FRS-R-15's DC voltage rating affect AC-only applications?

A: No. The FRS-R-15 is fully rated for 600 VAC operation identical to the ECSR15. The additional 300 VDC rating does not impact AC performance and provides flexibility for mixed-voltage applications.

Q: Are both parts suitable for industrial electrical applications?

A: Yes. Both the ECSR15 and FRS-R-15 are approved for electrical and industrial applications with CE, CSA, and UL certifications, confirming compliance with applicable safety standards.

Q: What is the physical compatibility concern between these parts?

A: The primary consideration is cartridge length. The ECSR15 measures 5.00" in length while the FRS-R-15 measures 3.00". Both share the same 0.810" diameter. Ensure your fuse holder accommodates the specific length of the cartridge you select.