CHM1D Equivalent & Substitute Parts

Part Overview

The CHM1D is a cartridge fuse holder manufactured by Eaton - Bussmann Electrical Division, designed for DIN rail mounting in single-circuit applications. This component is rated for 32 A at 690V and accommodates 5AG cartridge fuses with dimensions of 0.394" diameter by 1.496" length (10mm x 38mm). The CHM1D is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing system maintenance where this model is no longer readily available through standard procurement channels.

Substiute Parts

CHM1D

Eaton - Bussmann Electrical DivisionIn Stock: 1089CHM1D Datasheet

Current PartRFQ

CHM1DU

Eaton - Bussmann Electrical DivisionIn Stock: 1208CHM1DU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The CHM1DU serves as a direct substitute for the CHM1D within the constraints of application requirements. Both components share identical mechanical specifications: DIN rail mounting, single-circuit configuration, screw terminal termination, and accommodation of 5AG cartridge fuses at 10mm x 38mm dimensions.

The substitution is valid based on the following matching parameters:

• Mounting Type: DIN Rail (identical)
• Fuse Type: Cartridge (identical)
• Fuse Size: 0.394" Dia x 1.496" L (identical)
• Number of Circuits: 1 (identical)
• Termination Style: Screw Terminal (identical)
• Series: CH (identical)
• Manufacturer: Eaton - Bussmann Electrical Division (identical)

The CHM1DU differs in electrical ratings: 30 A at 600V compared to the CHM1D's 32 A at 690V. This substitution is applicable only in applications where the lower current and voltage ratings of the CHM1DU are compatible with the system design requirements.

Parameter Comparison

Engineering Selection Recommendations

The CHM1D is classified as obsolete and should be replaced with the CHM1DU in new designs and system upgrades. The CHM1DU is an active product with ROHS3 compliance, ensuring alignment with current environmental and regulatory standards.

Selection of the CHM1DU requires verification that the application operates within 30 A and 600V limits. Applications requiring the full 32 A at 690V rating of the CHM1D cannot use the CHM1DU as a direct substitute without system redesign or alternative component sourcing.

Both components maintain identical mechanical compatibility with DIN rail installations and 5AG cartridge fuses, ensuring physical interchangeability in mounting and fuse accommodation.

Frequently Asked Questions (FAQ)

Q: Can the CHM1DU replace the CHM1D in all applications?

A: The CHM1DU is mechanically compatible with the CHM1D but has lower electrical ratings (30 A at 600V versus 32 A at 690V). Substitution is valid only in applications where these lower ratings satisfy system requirements.

Q: What are the physical differences between CHM1D and CHM1DU?

A: Both components are physically identical. They share the same DIN rail mounting, single-circuit configuration, screw terminal termination, and 10mm x 38mm fuse accommodation.

Q: Why is the CHM1D obsolete?

A: The CHM1D is classified as obsolete by the manufacturer. The CHM1DU represents the active equivalent within the CH series cartridge fuse holder product line.

Q: Are there compliance differences between these components?

A: The CHM1DU is ROHS3 compliant, while the CHM1D compliance status is not specified. Both components are REACH unaffected. For new installations subject to environmental regulations, the CHM1DU is the appropriate selection.

Q: What fuse types are compatible with both holders?

A: Both the CHM1D and CHM1DU accommodate 5AG cartridge fuses with dimensions of 0.394" diameter by 1.496" length (10mm x 38mm).

Q: Can these components be used interchangeably in existing installations?

A: Physical interchangeability is confirmed. Electrical interchangeability depends on whether the application operates within the CHM1DU's 30 A and 600V ratings.