NH0G10 Square Fuse 10A 500VAC/440VDC Equivalent & Substitute Parts

Part Overview

The NH0G10 is a square fuse rated for 10A at 500VAC/440VDC, manufactured by Littelfuse Inc. This component is classified as obsolete, indicating it is no longer in active production. The fast-blow response time and indicating feature make it suitable for motor protection applications. Due to its obsolete status, identifying compatible substitute parts is essential for system maintenance and component replacement in existing installations.

Substiute Parts

NH0G10

Littelfuse Inc.In Stock: 819NH0G10 Datasheet

Current PartRFQ

10NHG000B

Eaton - Bussmann Electrical DivisionIn Stock: 79610NHG000B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NH0G10 is determined by the following critical parameters:

• Current Rating: Must be 10A
• Voltage Rating - AC: Must be 500VAC or higher
• Fuse Type: Must be Square
• Class: Must be NH
• Mounting Type: Must require holder
• Package/Case: Must be Rectangular, Blade configuration

The substitute part 10NHG000B meets these core electrical and mechanical requirements. While the DC voltage rating differs (250VDC versus 440VDC), the AC rating remains at 500VAC, and all other functional parameters align with the substitution criteria for this fuse category.

Parameter Comparison

Engineering Selection Recommendations

The 10NHG000B from Eaton - Bussmann Electrical Division is an active product suitable for replacing the obsolete NH0G10. Both components share identical current ratings, AC voltage ratings, fuse class, and mechanical mounting requirements. Both carry VDE approval and feature indicating functionality.

The primary difference is the DC voltage rating: the substitute is rated for 250VDC compared to the original 440VDC. Selection should be based on the actual DC voltage present in the application circuit. If the application operates at or below 250VDC, the 10NHG000B is electrically compatible. If the application requires 440VDC DC protection, this substitute may not be suitable.

The 10NHG000B offers improved compliance status (ROHS3 Compliant versus RoHS non-compliant), which may be advantageous for new installations or systems with environmental compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the 10NHG000B directly replace the NH0G10 in all applications?

A: Direct replacement is possible only if the application circuit operates at DC voltages of 250V or below. The substitute part is rated for 250VDC, whereas the original is rated for 440VDC. Verify the actual DC voltage in your circuit before substitution.

Q: Are the physical dimensions compatible?

A: Both parts use Rectangular, Blade package configuration and require a holder for mounting. However, the physical dimensions differ: NH0G10 measures 2.760" L x 2.100" W x 1.181" H, while 10NHG000B measures 2.126" L x 0.827" W x 1.693" H. Verify that the holder accommodates the substitute part's dimensions.

Q: What is the significance of the response time difference?

A: The NH0G10 specifies Fast Blow response time. The 10NHG000B does not specify response time in the provided data. Confirm the response time requirement for your motor protection application before substitution.

Q: Does the RoHS compliance difference affect compatibility?

A: RoHS compliance is a regulatory and environmental consideration rather than an electrical compatibility factor. The 10NHG000B's ROHS3 compliance may be required for certain markets or applications but does not affect electrical performance in the circuit.

Q: Are both parts VDE approved?

A: Yes, both the NH0G10 and 10NHG000B carry VDE approval, confirming compliance with relevant safety standards for this fuse category.