Weidmüller 1751450000 Terminal Block Plug Equivalent & Substitute Parts

Part Overview

The Weidmüller 1751450000 is a 2-position terminal block plug with female sockets, 4.6mm pitch, designed for free-hanging in-line applications. This component features IDC termination and is rated for 6A at 250V (IEC) or 7A at 300V (UL). The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new designs requiring compatible interconnection solutions.

Substiute Parts

1751450000

WeidmüllerIn Stock: 10911751450000 Datasheet

Current PartRFQ

1597360000

WeidmüllerIn Stock: 82251597360000 Datasheet

MFR RecommendedRFQ

2458950000

WeidmüllerIn Stock: 12712458950000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1751450000 is determined by the following critical parameters:

Core Compatibility Requirements:

• Manufacturer: Weidmüller (same family)
• Series: Omnimate BL (same connector family)
• Type: Plug, Female Sockets (same connector gender and socket type)
• Number of Positions: 2 (same circuit count)
• Pitch: 0.138" (4.60mm) (same spacing for mating compatibility)
• Mounting Type: Free Hanging (In-Line) (same installation method)
• Housing Material: PBT or equivalent (same material class)
• Contact Material: Copper Alloy (same base material)
• Flammability Rating: UL94 V-0 (same safety classification)

Electrical Performance Considerations: Substitute parts must meet or exceed the original electrical ratings. The 1751450000 operates at 6A (IEC) / 7A (UL) and 250V (IEC) / 300V (UL). Substitutes with higher current and voltage ratings remain compatible for this application.

Termination Style Variation: The original part uses IDC termination. Substitute parts may employ alternative termination methods (screw-clamping or push-in spring) provided they maintain mechanical and electrical compatibility with the mating header.

Wire Entry Orientation: The original part supports 90° and 270° wire entry. Substitutes with 180° wire entry (straight entry) are functionally equivalent for applications where wire routing permits straight-in connection.

Parameter Comparison

Engineering Selection Recommendations

1597360000 Selection Criteria: This substitute is recommended when screw-clamping termination is acceptable and wire entry orientation can be adapted to 180° straight configuration. The part offers higher current capacity (17A IEC) and voltage rating (320V IEC), providing margin above the original 6A/250V specification. Extended operating temperature range (-50°C to 100°C) accommodates broader environmental conditions. Active product status ensures ongoing availability and supply chain continuity. RoHS compliance is maintained. Wire gauge range (14-28 AWG) encompasses the original 20-22 AWG specification.

2458950000 Selection Criteria: This substitute is recommended for applications requiring push-in spring termination without screw adjustment. The part delivers the highest current rating (17.5A IEC) and widest operating temperature range (-50°C to 120°C). Active product status guarantees supply availability. ROHS3 compliance exceeds RoHS requirements. Wire gauge range (16-26 AWG) covers the original specification. Housing material differs (glass-filled nylon instead of PBT), suitable for applications where nylon properties are acceptable. Insulation height is reduced (9.00mm vs. 12.50mm original), requiring mechanical clearance verification.

Compliance and Certification: Both substitutes maintain UL94 V-0 flammability rating, IP20 ingress protection, and copper alloy contact material. Both are REACH unaffected and carry EAR99 ECCN classification, matching the original part's regulatory status.

Frequently Asked Questions (FAQ)

Q: Can 1597360000 or 2458950000 directly replace 1751450000 without modification?

A: Mechanical compatibility is confirmed for mating with Omnimate BL headers due to identical pitch (4.60mm), position count (2), and connector type (female sockets). Wire entry orientation differs: the original supports 90°/270° entry, while substitutes require 180° straight entry. System design must accommodate this wire routing change. Termination method differs (IDC vs. screw-clamping or push-in), requiring corresponding wire preparation technique adjustment.

Q: What are the electrical compatibility limits?

A: Both substitutes exceed the original electrical ratings. The 1751450000 operates at 6A/250V (IEC). Substitute 1597360000 is rated 17A/320V (IEC), and 2458950000 is rated 17.5A/320V (IEC). Applications drawing 6A at 250V operate well within substitute capacity. No derating is required.

Q: How do termination methods affect installation?

A: The original 1751450000 uses IDC (insulation displacement contact) termination, requiring specialized IDC tooling. Substitute 1597360000 uses screw-clamping, requiring wire stripping to 6mm and torque application (0.2-0.25 Nm). Substitute 2458950000 uses push-in spring termination, requiring wire stripping to 8mm with no torque specification. Installation labor and tooling requirements differ accordingly.

Q: Are there housing material differences?

A: The original and 1597360000 use PBT (polybutylene terephthalate). Substitute 2458950000 uses glass-filled nylon (polyamide). Both materials meet UL94 V-0 flammability requirements. Nylon offers improved impact resistance; PBT provides superior chemical resistance. Application environment determines material suitability.

Q: What is the wire gauge compatibility range?

A: The original 1751450000 accepts 20-22 AWG (0.35-0.5mm²). Substitute 1597360000 accepts 14-28 AWG (0.2-1.5mm²), and 2458950000 accepts 16-26 AWG (0.14-1.5mm²). Both substitutes accommodate the original wire gauge specification with additional range flexibility.

Q: Why is the original part obsolete?

A: Product status reflects Weidmüller's discontinuation of the 1751450000 model. Both recommended substitutes are active products with confirmed ongoing manufacturing and supply availability.

Q: Are packaging differences significant?

A: The original lists packaging as unspecified. Substitute 1597360000 is supplied in bulk packaging, and 2458950000 in box packaging. Packaging affects order quantities and storage but does not impact electrical or mechanical function.