Equivalent & Substitute Parts Reference: CH143DNMS

Part Overview

The Eaton - Bussmann Electrical Division CH143DNMS is a fuse holder for cartridge fuses, designed for DIN rail mounting and supporting a maximum current rating of 40 A at 600 V across 3 circuits. This product is classified as “Obsolete,” making it necessary to identify equivalent or substitute fuse holder models that meet identical electrical and mechanical parameters to maintain continuity in designs and inventories.

Substiute Parts

CH143DNMS

Eaton - Bussmann Electrical DivisionIn Stock: 1217CH143DNMS Datasheet

Current PartRFQ

CH143BNMS

Eaton - Bussmann Electrical DivisionIn Stock: 971CH143BNMS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute fuse holder models are identified strictly by matching key parameters: mounting type (DIN Rail), fuse size (0.551" Dia x 2.008" L / 14mm x 51mm), current rating (40 A), voltage (600V), number of circuits (3), termination style (Screw Terminal), fuse type (Cartridge), and fuseholder type (Holder). Only products meeting all criteria and being available are considered valid substitutes for the CH143DNMS.

Parameter Comparison

Engineering Selection Recommendations

Selection between CH143DNMS (Obsolete) and substitute part CH143BNMS should be based mainly on product status and compliance. The CH143BNMS is listed as “Active” and is RoHS Compliant, making it suitable for new designs and replacements where compliance and continued availability are required. No additional technical criteria are considered for this substitution.

Frequently Asked Questions (FAQ)

Q1: What parameters must match when substituting CH143DNMS?
A1: Substitute fuse holders must have identical mounting type (DIN Rail), fuse size (14mm x 51mm), current rating (40 A), voltage (600V), number of circuits (3), termination style (Screw Terminal), fuse type (Cartridge), and fuseholder type (Holder).

Q2: Is packaging a concern for substitution between CH143DNMS and CH143BNMS?
A2: Both parts are supplied in bulk packaging, matching all inventory and handling requirements based on provided parameters.

Q3: Are both fuse holders compatible with the same fuse sizes and circuit configurations?
A3: Both CH143DNMS and CH143BNMS are compatible with 14mm x 51mm fuses and support 3 circuits as per the summarized parameters.

Q4: Is RoHS compliance relevant for substitution?
A4: The substitute part CH143BNMS is RoHS Compliant, addressing requirements for lead-free and hazardous substance restrictions where such compliance is mandated.

Q5: What is the significance of part status in selection?
A5: CH143DNMS is Obsolete; substitutes should have an Active part status to ensure ongoing availability for current and future designs.