F520STLED110-GY Equivalent & Substitute Parts

Part Overview

The F520STLED110-GY is a 2-position disconnect terminal block connector manufactured by Eaton - Bussmann Electrical Division from the Magnum® F520 series. This component is designed for applications requiring fused disconnect capability with lever operation and integrated LED indication. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

F520STLED110-GY

Eaton - Bussmann Electrical DivisionIn Stock: 852F520STLED110-GY Datasheet

Current PartRFQ

41078.2

On Shore Technology Inc.In Stock: 109541078.2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the F520STLED110-GY is determined by strict alignment of the following critical parameters:

Core Functional Requirements:

• Number of positions: 2
• Number of levels: 1
• Type: Disconnect with fuse and lever operation
• Termination style: Screw
• Terminal width: 8.0mm
• Fuse type: 5mm x 20mm

Electrical Compatibility Parameters:

• Current rating: 6.3 A (both IEC and UL)
• Voltage rating: Minimum 300V (IEC and UL)
• Wire gauge compatibility: Must accommodate 12-24 AWG range or equivalent mm² range

Material and Compliance Requirements:

• Insulation material: Polyamide (PA66), Nylon 6/6
• Flammability rating: UL94 V-0 or equivalent
• RoHS compliance status

The substitute part 41078.2 from On Shore Technology Inc. meets these core substitution criteria with documented compatibility across all mandatory electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The 41078.2 terminal block connector from On Shore Technology Inc. serves as a functional equivalent for the obsolete F520STLED110-GY. Selection of this substitute is supported by the following engineering factors:

Electrical Equivalence: Both components maintain identical current ratings (6.3 A) and UL voltage ratings (300V). The substitute's higher IEC voltage rating (400V versus 300V) provides additional safety margin without introducing incompatibility.

Mechanical Compatibility: Core mechanical parameters align precisely: 2-position configuration, 8.0mm terminal width, screw termination, and 5mm x 20mm fuse accommodation. The 1mm difference in stripping length (10mm versus 9mm) falls within acceptable installation tolerances for screw-terminated connections.

Wire Gauge Consideration: The substitute accommodates 12-22 AWG, which covers the majority of the original part's 12-24 AWG range. Applications requiring 23-24 AWG termination should be evaluated against the substitute's lower limit before selection.

Compliance Status: Both components utilize identical insulation materials (Polyamide PA66, Nylon 6/6) and maintain equivalent moisture sensitivity ratings (MSL 1). The substitute's active product status ensures ongoing availability and supply chain continuity compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can 41078.2 directly replace F520STLED110-GY in existing applications?

A: Yes, for applications using wire gauges within the 12-22 AWG range. The substitute maintains electrical ratings, mechanical form factor, and material specifications required for functional equivalence. Applications utilizing 23-24 AWG wire should be individually assessed.

Q: What is the significance of the wire gauge range difference?

A: The F520STLED110-GY accommodates 12-24 AWG (0.5-4mm²), while 41078.2 accommodates 12-22 AWG (0.2-4mm²). For most industrial applications operating within the 12-22 AWG range, this difference is not limiting. Designs specifically requiring 23-24 AWG termination capability should retain the original specification or identify alternative substitutes.

Q: Are there differences in LED functionality between these parts?

A: The F520STLED110-GY includes integrated LED features. The provided specification for 41078.2 does not document LED functionality. Applications dependent on LED indication should confirm feature availability with the substitute part's detailed technical documentation before implementation.

Q: How do the voltage ratings compare?

A: Both parts meet the 300V UL requirement. The substitute's 400V IEC rating exceeds the original 300V IEC rating, providing additional voltage margin. This difference does not create incompatibility and may offer enhanced performance in applications approaching voltage limits.

Q: What packaging differences exist between these parts?

A: F520STLED110-GY is supplied in standard packaging, while 41078.2 is supplied in bulk packaging. Procurement and inventory management processes should account for this packaging difference when transitioning between components.

Q: Are both parts RoHS compliant?

A: Yes. F520STLED110-GY is RoHS Compliant, and 41078.2 is ROHS3 Compliant. Both meet current RoHS requirements for new designs and applications.