SPP-4F70 Equivalent & Substitute Parts

Part Overview

The SPP-4F70 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 70A at 700V operation. This component is classified as obsolete, requiring identification of functionally equivalent alternatives for continued system support and procurement planning. The part operates as a blade-mounted fuse element within a holder assembly, serving as a critical overcurrent protection device in electrical and industrial applications.

Substiute Parts

SPP-4F70

Eaton - Bussmann Electrical DivisionIn Stock: 1179SPP-4F70 Datasheet

Current PartRFQ

170M3711

Eaton - Bussmann Electrical DivisionIn Stock: 1140170M3711 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPP-4F70 is based on the following critical parameters:

• Voltage Rating: Minimum 700V AC to maintain system protection integrity
• Current Rating: Functionally equivalent amperage or higher rating to preserve circuit protection characteristics
• Mounting Configuration: Physical form factor compatibility with existing holder assemblies or system integration points
• Manufacturer Compliance: Active product status with current regulatory certifications (REACH, RoHS, ECCN classification)

The substitute part 170M3711 shares the same voltage rating (700VAC) and manufacturer source (Eaton - Bussmann Electrical Division), with a higher current rating (80A) suitable for applications requiring increased overcurrent protection capacity. Both components maintain identical ECCN and REACH compliance classifications.

Parameter Comparison

Engineering Selection Recommendations

The 170M3711 represents an active, currently manufactured alternative to the obsolete SPP-4F70. Both components are sourced from the same manufacturer and maintain identical voltage ratings at 700VAC, ensuring electrical compatibility within existing circuit protection schemes.

The 170M3711 carries active product status with confirmed RoHS compliance and CSA/UR approvals, providing regulatory assurance for new installations and system upgrades. The higher current rating (80A versus 70A) accommodates applications requiring increased fault protection capacity while maintaining the same voltage class.

Mounting configuration differences (bolt mount versus holder-based) require mechanical integration assessment within the target application. Physical dimensions of the 170M3711 (50.00mm L × 45.00mm W × 59.00mm H) should be verified against available mounting space and holder compatibility specifications.

Frequently Asked Questions (FAQ)

Q: Can the 170M3711 directly replace the SPP-4F70 in existing assemblies?

A: Electrical compatibility is confirmed at 700VAC operation. Mechanical compatibility depends on holder design and mounting interface specifications. The 170M3711 uses bolt mount configuration versus the SPP-4F70 holder requirement, necessitating mechanical integration review.

Q: What is the significance of the higher 80A rating on the 170M3711?

A: The increased current rating provides enhanced overcurrent protection capacity. Selection between 70A and 80A ratings depends on circuit load requirements and system protection coordination. Both ratings operate at identical 700VAC voltage class.

Q: Are both parts compliant with current regulatory standards?

A: The 170M3711 carries active product status with RoHS compliance and CSA/UR approvals. The SPP-4F70, being obsolete, should be replaced with the 170M3711 for new designs and system upgrades requiring current regulatory certification.

Q: What is the breaking capacity difference between these parts?

A: The 170M3711 specifies 200kA breaking capacity at rated voltage. Breaking capacity data for the SPP-4F70 is not provided in available documentation. Breaking capacity should be verified against circuit protection requirements during substitution planning.

Q: How do the melting I²t values affect substitution decisions?

A: The 170M3711 melting I²t of 185 defines thermal response characteristics during fault conditions. This parameter should be cross-referenced with system coordination requirements to ensure proper protection sequencing in multi-stage protection schemes.