CCMR01.4T Equivalent & Substitute Parts

Part Overview

The CCMR01.4T is a 1.4A cartridge fuse rated for 600 VAC and 250 VDC applications, manufactured by Littelfuse Inc. under the POWR-GARD® and POWR-PRO® CCMR series. This slow-blow fuse is designed for motor protection circuits and requires a compatible fuse holder for installation. The part is classified as obsolete, making identification of active equivalent models essential for procurement and system continuity.

Substiute Parts

CCMR01.4T

Littelfuse Inc.In Stock: 879CCMR01.4T Datasheet

Current PartRFQ

CCMR01.4TXP

Littelfuse Inc.In Stock: 1142CCMR01.4TXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CCMR01.4T is determined by strict equivalence across electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

Current Rating: 1.4A (exact match required) Voltage Ratings: 600 VAC and 250 VDC (both must be met) Fuse Class: CC (cartridge fuse classification) Response Time: Slow Blow (thermal-magnetic characteristic) Physical Dimensions: 10mm x 38mm (5AG midget cartridge form factor) Breaking Capacity: 300kA AC and 20kA DC minimum Approval Certifications: CE and UL compliance

The CCMR01.4TXP meets all these criteria and serves as a direct functional equivalent. The primary distinction is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The CCMR01.4TXP is the direct equivalent for the obsolete CCMR01.4T. Both parts are manufactured by Littelfuse Inc. and carry identical electrical and mechanical specifications. The CCMR01.4TXP maintains active product status, ensuring ongoing availability and supply chain continuity. Both parts meet CE and UL approval requirements and comply with ROHS3 standards.

Selection between these parts is determined by packaging requirements. The CCMR01.4T was supplied in standard packaging, while the CCMR01.4TXP is available in bulk packaging. For applications requiring the 1.4A, 600 VAC/250 VDC cartridge fuse specification, the CCMR01.4TXP provides the same electrical performance and mechanical compatibility with improved procurement availability.

Frequently Asked Questions (FAQ)

Q: Can the CCMR01.4TXP be used as a direct replacement for the CCMR01.4T?

A: Yes. Both parts are identical in electrical ratings (1.4A, 600 VAC, 250 VDC), response time (slow blow), fuse class (CC), physical dimensions (10mm x 38mm), and breaking capacity (300kA AC, 20kA DC). The CCMR01.4TXP is the active equivalent.

Q: What is the difference between these two part numbers?

A: The primary difference is product status and packaging. The CCMR01.4T is obsolete and was supplied in standard packaging. The CCMR01.4TXP is an active product available in bulk packaging. All functional and mechanical specifications are identical.

Q: Are there any compatibility concerns when substituting the CCMR01.4TXP for the CCMR01.4T?

A: No. Both parts use the same 5AG midget cartridge form factor (10mm x 38mm) and require the same fuse holder. Installation and electrical performance are identical.

Q: Do both parts meet the same regulatory certifications?

A: Yes. Both the CCMR01.4T and CCMR01.4TXP carry CE and UL approvals and are ROHS3 compliant.

Q: What applications are these fuses designed for?

A: These cartridge fuses are specified for motor protection circuits. The slow-blow response time accommodates motor inrush currents while providing circuit protection at sustained overcurrent conditions.