TRS250R Equivalent & Substitute Parts

Part Overview

The TRS250R is a 600V 250A fuse cartridge manufactured by Mersen USA Newburyport-MA L.L.C., currently in active product status with ROHS3 compliance. This component is essential for electrical protection in industrial and commercial applications requiring high-current interruption at 600VAC. Substitute parts may be required due to supply chain considerations, packaging preferences, or specific application requirements while maintaining equivalent electrical and mechanical performance.

Substiute Parts

TRS250R

Mersen USA Newburyport-MA L.L.C.In Stock: 1180TRS250R Datasheet

Current PartRFQ

FRS-R-250

Eaton - Bussmann Electrical DivisionIn Stock: 1101FRS-R-250 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The FRS-R-250 qualifies as an equivalent substitute based on the following critical parameters:

• Current Rating: Both parts are rated for 250A operation
• Voltage Rating - AC: Both parts are rated for 600VAC
• Fuse Type: Both are cartridge-style fuses
• Regulatory Compliance: Both maintain active product status and appropriate compliance certifications
• Tariff Classification: Both share the same HTSUS code (8536.10.0040), confirming functional equivalence

The primary difference is packaging format (Box vs. Bulk) and manufacturer, which does not affect electrical or mechanical compatibility for applications requiring 250A at 600VAC protection.

Parameter Comparison

Engineering Selection Recommendations

Both the TRS250R and FRS-R-250 are active products with appropriate regulatory compliance for 250A, 600VAC applications. Selection between these parts should be based on:

• Supply Availability: Both parts maintain active inventory status
• Packaging Requirements: TRS250R is supplied in Box packaging; FRS-R-250 is supplied in Bulk packaging
• Compliance Certifications: FRS-R-250 carries additional approval agencies (CE, CSA, UL) and specifies RK5 class rating with defined breaking capacity
• Application Voltage Requirements: FRS-R-250 includes 300VDC rating; TRS250R specification does not include DC rating information

Frequently Asked Questions (FAQ)

Q: Can FRS-R-250 directly replace TRS250R in existing installations?

A: Yes, for 600VAC, 250A applications. Both parts are cartridge-style fuses with identical current and AC voltage ratings. Physical dimensions are equivalent (11.630" L x 2.340" Dia). Verify that the fuse holder is compatible with cartridge-style fuses.

Q: What is the difference between Box and Bulk packaging?

A: Box packaging (TRS250R) typically includes individual packaging per unit suitable for smaller orders or specific inventory management. Bulk packaging (FRS-R-250) is supplied without individual packaging, suitable for larger quantity orders and industrial procurement.

Q: Does the FRS-R-250 RK5 class rating affect compatibility?

A: RK5 class designation indicates the fuse's interrupting rating and time-current characteristics. This is a specification advantage of the FRS-R-250, providing defined breaking capacity (200kA AC, 20kA DC) and slow-blow response time. It does not prevent substitution but confirms suitability for industrial electrical protection applications.

Q: Are there any compliance differences between these parts?

A: Both parts comply with ROHS3/RoHS standards and share the same ECCN and HTSUS classifications. FRS-R-250 specifies additional approval agencies (CE, CSA, UL), which may be required for certain regional or application-specific installations.

Q: What mounting considerations apply to these fuses?

A: Both parts are cartridge-style fuses requiring a compatible fuse holder for installation. Verify holder specifications match the cartridge dimensions (approximately 11.63" length, 2.34" diameter) before installation.