ECSR1 Equivalent & Substitute Parts Reference

Part Overview

The ECSR1 is a 1A 600VAC cartridge fuse manufactured by Eaton - Bussmann Electrical Division. This slow-blow fuse cartridge requires a compatible holder for installation and is designed for electrical and industrial applications. The part is currently active in production with 981 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when application requirements permit use of functionally equivalent components.

Substiute Parts

ECSR1

Eaton - Bussmann Electrical DivisionIn Stock: 1055ECSR1 Datasheet

Current PartRFQ

FRS-R-1

Eaton - Bussmann Electrical DivisionIn Stock: 790FRS-R-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ECSR1 are identified based on the following critical parameters that determine functional equivalence:

• Current Rating: 1A (exact match required)
• Voltage Rating - AC: 600 VAC (exact match required)
• Fuse Type: Cartridge (exact match required)
• Response Time: Slow Blow (exact match required)
• Class: RK5 (exact match required)
• Approval Agency: CE, CSA, UL (all certifications present)
• Breaking Capacity @ Rated Voltage: 200kA (exact match required)

The FRS-R-1 qualifies as a substitute because it meets all critical electrical parameters for AC operation at the specified current and voltage ratings. The FRS-R-1 provides additional DC voltage capability (300 VDC) and a shorter physical length (3.00" vs 5.00"), which does not disqualify it from substitution in applications requiring only AC operation.

Parameter Comparison

Engineering Selection Recommendations

Both the ECSR1 and FRS-R-1 are active products manufactured by Eaton - Bussmann Electrical Division with identical certifications (CE, CSA, UL) and RoHS compliance. Selection between these parts should be based on physical space constraints and application voltage requirements. The FRS-R-1 offers a shorter cartridge length (3.00" vs 5.00"), which may be advantageous in space-limited installations. The FRS-R-1 also provides DC voltage capability, making it suitable for dual-voltage applications. Both parts maintain the same current rating, voltage rating for AC operation, response time, and breaking capacity, ensuring equivalent performance in standard AC electrical circuits.

Frequently Asked Questions (FAQ)

Q: Can the FRS-R-1 be used as a direct replacement for the ECSR1?

A: Yes, the FRS-R-1 qualifies as a substitute for AC applications at 1A 600VAC. Both parts share identical current ratings, AC voltage ratings, response time characteristics, and breaking capacity. The primary difference is physical length and the addition of DC voltage capability in the FRS-R-1.

Q: What is the significance of the physical dimension difference between these parts?

A: The ECSR1 measures 5.00" in length while the FRS-R-1 measures 3.00" in length. Both maintain the same 0.810" diameter. The shorter FRS-R-1 may be preferred in applications with space constraints, provided the fuse holder accommodates the shorter cartridge length.

Q: Are both parts suitable for industrial electrical applications?

A: Yes, both the ECSR1 and FRS-R-1 are rated for electrical and industrial applications with RK5 class designation and identical approval agencies (CE, CSA, UL).

Q: Does the additional DC voltage rating of the FRS-R-1 affect its AC performance?

A: No, the additional 300 VDC rating does not affect AC performance. The FRS-R-1 maintains the same 600 VAC rating and 200kA breaking capacity as the ECSR1 for AC circuits.

Q: What holder compatibility should be verified when substituting these parts?

A: Both parts require a compatible fuse holder. Verify that the holder accommodates the cartridge diameter (0.810") and the specific length of the selected fuse. The FRS-R-1's shorter 3.00" length must be confirmed compatible with the intended holder before substitution.