NH00CM35 Equivalent & Substitute Parts

Part Overview

The NH00CM35 is a 35A square fuse rated for 500 VAC and 440 VDC operation, manufactured by Littelfuse Inc. This component is classified as obsolete, requiring identification of active equivalent parts for continued system support. The part features fast-blow response characteristics and is designed for motor protection applications with an indicating function. Due to its obsolete status, sourcing active alternatives is necessary for new designs and system maintenance.

Substiute Parts

NH00CM35

Littelfuse Inc.In Stock: 999NH00CM35 Datasheet

Current PartRFQ

35NHG000B

Eaton - Bussmann Electrical DivisionIn Stock: 315335NHG000B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 35NHG000B from Eaton - Bussmann Electrical Division qualifies as a direct substitute based on the following critical parameters:

• Current Rating: 35A (identical)
• Voltage Rating - AC: 500 VAC (identical)
• Fuse Type: Square (identical)
• Response Time: Fast Blow (identical)
• Class: NH (identical)
• Mounting Type: Requires Holder (identical)
• Approval Agency: CE, VDE (includes VDE certification)

The 35NHG000B maintains functional equivalence across all primary electrical and mechanical specifications. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The 35NHG000B is the appropriate substitute for the obsolete NH00CM35. Selection is based on:

• Active product status ensuring availability and manufacturer support
• Identical electrical ratings (35A, 500 VAC, fast-blow response)
• Matching NH class and square fuse type
• VDE certification maintained with additional CE approval
• RoHS compliance of the substitute part supports modern regulatory requirements
• Equivalent breaking capacity specifications for motor protection applications

Frequently Asked Questions (FAQ)

Q: Can the 35NHG000B directly replace the NH00CM35 in existing installations?

A: Yes. Both parts share identical current rating (35A), AC voltage rating (500 VAC), fuse type (square), response time (fast-blow), and NH class. The mounting requirement (holder-based) is identical. Physical dimensions differ slightly, but both are rectangular blade packages designed for standard NH holders.

Q: What is the significance of the DC voltage rating difference?

A: The NH00CM35 specifies 440 VDC capability, while the 35NHG000B does not list a DC rating. For applications requiring DC operation at 440V, the DC rating specification must be verified with the manufacturer before substitution.

Q: Does the RoHS compliance difference affect substitution?

A: The 35NHG000B is RoHS compliant while the NH00CM35 is not. For new designs and systems subject to RoHS regulations, the 35NHG000B is the preferred choice. For legacy systems without RoHS requirements, both parts are functionally equivalent.

Q: Are there any physical installation considerations?

A: Both parts require a holder for installation. Dimensional differences exist (NH00CM35: 2.126" L x 2.020" W x 0.787" H; 35NHG000B: 2.126" L x 0.827" W x 1.693" H). Verify that the existing holder accommodates the substitute part's dimensions before installation.

Q: What certifications apply to the substitute part?

A: The 35NHG000B carries CE and VDE approvals, meeting both European and international safety standards. The original NH00CM35 carried VDE certification only.