0LS13003Z Power Splicer Terminal Block Equivalent & Substitute Parts

Part Overview

The 0LS13003Z is a 3-pole power splicer terminal block manufactured by Littelfuse Inc., rated for 115 A at 600 V with screw connections on both line and load sides. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new designs. The part belongs to the POWR-BLOKS® LS series and is RoHS non-compliant. Due to its obsolete status, equivalent active alternatives are available from the same manufacturer to ensure supply chain continuity.

Substiute Parts

0LS13003Z

Littelfuse Inc.In Stock: 12530LS13003Z Datasheet

Current PartRFQ

0LS13303Z

Littelfuse Inc.In Stock: 7190LS13303Z Datasheet

DirectRFQ

LFS13003Z

Littelfuse Inc.In Stock: 1090LFS13003Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 0LS13003Z is determined by the following critical parameters that must remain constant across equivalent parts:

• Voltage rating: 600 V
• Current rating: 115 A
• Number of poles: 3
• Connection type: Screw connections on both line and load sides
• Wire/stud size: 2 - #14 CU/AL
• Connections per pole: 1 line side, 1 load side

Two substitute parts meet these criteria. The LFS13003Z is the manufacturer-recommended direct replacement, belonging to the active POWR-BLOKS® LF series with identical electrical and mechanical specifications. The 0LS13303Z is an alternative from the same manufacturer with matching voltage and current ratings, though it is classified as a power distribution block rather than a power splicer block.

Parameter Comparison

Engineering Selection Recommendations

The LFS13003Z is the primary substitute for the obsolete 0LS13003Z. Both parts share identical electrical specifications (600 V, 115 A, 3-pole configuration) and mechanical characteristics (screw connections, #14 CU/AL wire/stud size). The LFS13003Z offers the advantage of active product status and ROHS3 compliance, making it suitable for new designs and systems requiring regulatory adherence. The transition from the POWR-BLOKS® LS series to the POWR-BLOKS® LF series represents a product line evolution while maintaining functional equivalence.

The 0LS13303Z is available as an alternative option with matching voltage and current ratings. However, limited specification data is provided for this part, and it is classified as a power distribution block rather than a power splicer block. Selection of this alternative should be based on specific application requirements and mechanical form factor compatibility.

For applications currently using the 0LS13003Z, the LFS13003Z provides direct functional replacement with improved compliance status. Inventory availability is adequate for both substitute options.

Frequently Asked Questions (FAQ)

Q: Can the LFS13003Z directly replace the 0LS13003Z in existing installations?

A: Yes. The LFS13003Z maintains identical electrical ratings (600 V, 115 A), pole configuration (3-pole), connection type (screw connections), and wire/stud size specifications (2 - #14 CU/AL). Both parts feature 1 line-side and 1 load-side connection per pole, ensuring mechanical and electrical compatibility.

Q: What is the difference between the 0LS13003Z and LFS13003Z?

A: The primary differences are product status and compliance. The 0LS13003Z is obsolete and RoHS non-compliant, while the LFS13003Z is active and ROHS3 compliant. Both belong to the Littelfuse POWR-BLOKS® terminal block family and share identical functional specifications. The LFS13003Z represents the current active equivalent.

Q: Is the 0LS13303Z a suitable substitute?

A: The 0LS13303Z shares the same manufacturer (Littelfuse Inc.), voltage rating (600 V), and current rating (115 A). However, it is classified as a power distribution block rather than a power splicer block, and complete specification data for pole configuration and connection details is not provided. Compatibility should be verified against specific application requirements before selection.

Q: What does RoHS compliance mean for terminal block selection?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances regulations, restricting lead, cadmium, mercury, and other hazardous materials. The LFS13003Z and 0LS13303Z are ROHS3 compliant, while the obsolete 0LS13003Z is not. For new designs and regulated applications, ROHS3-compliant substitutes are required.

Q: Are there packaging differences between substitute parts?

A: Yes. The LFS13003Z is supplied in Box packaging, while the 0LS13303Z is supplied in Bulk packaging. Packaging selection may affect procurement, storage, and handling procedures but does not impact electrical or mechanical performance.

Q: What is the Moisture Sensitivity Level (MSL) rating?

A: Both the main part and substitutes carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or installation. Standard storage conditions are acceptable.