0LD35533Z Power Distribution Block - Equivalent & Substitute Parts

Part Overview

The 0LD35533Z is a 3-pole power distribution block manufactured by Littelfuse Inc., rated for 335 A at 600 V. This component is classified as obsolete, making identification of suitable substitute parts essential for system maintenance and component replacement in existing installations. The part belongs to the POWR-BLOKS® LD series and features screw connections on both line and load sides, with capacity for multiple load-side connections per pole.

Substiute Parts

0LD35533Z

Littelfuse Inc.In Stock: 8570LD35533Z Datasheet

Current PartRFQ

LFD35533Z

Littelfuse Inc.In Stock: 1036LFD35533Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 0LD35533Z is determined by the following critical parameters:

• Electrical Compatibility: Voltage rating (600 V), current capacity, and pole configuration (3-pole)
• Connection Architecture: Line side connections per pole (1), load side connections per pole (6), and connection type (screw)
• Wire/Stud Sizing: Line side capacity (400MCM minimum) and load side capacity (2 - #14CU/AL)
• Regulatory Compliance: RoHS3 compliance and MSL rating

The LFD35533Z qualifies as a manufacturer-recommended substitute based on matching electrical specifications, connection topology, and regulatory requirements. While the LFD35533Z exhibits a higher current rating (380 A vs. 335 A) and increased line-side wire capacity (500MCM vs. 400MCM), these represent enhanced capabilities within the same functional category and do not preclude substitution in applications designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

The LFD35533Z is the manufacturer-recommended substitute for the obsolete 0LD35533Z. Both components maintain ROHS3 compliance and identical MSL ratings, ensuring regulatory continuity. The LFD35533Z carries active product status with confirmed inventory availability (957 pcs), whereas the original part is obsolete. The substitute maintains identical connection architecture and load-side wire sizing while providing increased current capacity and line-side wire capacity, representing a direct functional upgrade suitable for replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the LFD35533Z directly replace the 0LD35533Z in existing installations?

A: Yes. Both components share identical pole configuration (3-pole), voltage rating (600 V), connection types (screw), and load-side wire sizing (2 - #14CU/AL). The LFD35533Z provides equal or greater electrical capacity across all parameters.

Q: What is the significance of the increased current rating in the LFD35533Z?

A: The LFD35533Z is rated for 380 A compared to the original 335 A. This represents enhanced current-handling capability and does not create incompatibility with applications designed for the lower-rated original part.

Q: Are there packaging differences between these parts?

A: The 0LD35533Z packaging specification is not provided. The LFD35533Z is supplied in box packaging.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the 0LD35533Z and LFD35533Z are ROHS3 compliant with MSL rating of 1 (Unlimited), ensuring equivalent regulatory status.

Q: Why is the LFD35533Z classified as the manufacturer-recommended substitute?

A: Littelfuse Inc. designates the LFD35533Z as the recommended replacement for the obsolete 0LD35533Z based on functional equivalence, regulatory compliance, and active product availability.