Weidmüller 1751420000 Terminal Block Plug Equivalent & Substitute Parts

Part Overview

The Weidmüller 1751420000 is a 6-position terminal block plug with female sockets, 4.6mm pitch, designed for free-hanging in-line applications. This component features IDC termination and is part of the Omnimate BL series. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new designs requiring compatible connectivity solutions.

Substiute Parts

1751420000

WeidmüllerIn Stock: 11831751420000 Datasheet

Current PartRFQ

1597400000

WeidmüllerIn Stock: 15301597400000 Datasheet

MFR RecommendedRFQ

2459090000

WeidmüllerIn Stock: 8042459090000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1751420000 is determined by the following core parameters:

• Pitch and Position Count: All substitutes must maintain 0.138" (4.60mm) pitch with 6 positions to ensure mechanical and electrical compatibility with mating connectors.
• Type and Gender: All substitutes must be plug-type connectors with female sockets to maintain interface compatibility.
• Mounting Configuration: All substitutes must be free-hanging in-line to match the original mounting method.
• Electrical Ratings: Substitute parts must meet or exceed the IEC voltage (250 V minimum) and current (6A minimum) requirements of the original component.
• Wire Gauge Compatibility: Substitutes must support wire gauges within or overlapping the 20-22 AWG range to ensure proper termination.
• Compliance: All substitutes must maintain RoHS compliance and UL94 V-0 flammability rating.

The two substitute parts listed below satisfy these core substitution criteria while offering enhanced electrical performance and alternative termination methods.

Parameter Comparison

Engineering Selection Recommendations

1597400000 Selection Criteria: This substitute is manufacturer-recommended and maintains active product status. It provides enhanced electrical performance with 17A IEC current rating and 320V IEC voltage rating, exceeding the original 6A/250V specifications. The screw-clamping termination method offers secure wire retention with defined torque specifications (0.2-0.25 Nm). Wire gauge range expansion (14-28 AWG) accommodates broader conductor sizes. Operating temperature range extends to 100°C. This part is suitable for applications requiring higher current capacity and improved temperature performance while maintaining RoHS compliance.

2459090000 Selection Criteria: This substitute offers the highest electrical performance with 17.5A IEC current rating and 320V IEC voltage rating. The screwless spring cage termination eliminates screw torque requirements, simplifying installation. Operating temperature range extends to 120°C, the highest among all options. Wire gauge range (16-26 AWG) overlaps the original specification. Housing material differs (Polyamide with glass fill versus PBT), and ROHS3 compliance represents the latest regulatory standard. This part is suitable for applications requiring maximum temperature performance and tool-free termination.

Both substitutes maintain the critical parameters of 6-position, 4.60mm pitch, female socket plug configuration with free-hanging in-line mounting. Both are active products with current availability.

Frequently Asked Questions (FAQ)

Q: Can 1597400000 or 2459090000 directly replace 1751420000 in existing applications? A: Yes, both substitutes maintain identical pitch (4.60mm), position count (6), connector type (plug with female sockets), and mounting configuration (free-hanging in-line). Mechanical mating with existing receptacles is compatible. Electrical ratings exceed the original specifications, ensuring safe operation in applications designed for the 1751420000.

Q: What is the primary difference between the two substitute parts? A: The 1597400000 uses screw-clamping termination with defined torque specifications, while the 2459090000 uses screwless spring cage termination. The 2459090000 also offers higher current capacity (17.5A vs 17A) and extended operating temperature range (-50°C to 120°C vs -50°C to 100°C).

Q: Does the change from IDC to screw or spring cage termination affect compatibility? A: Termination style affects only the wire connection method, not the connector interface. The mating end (female sockets) remains identical. Applications must accommodate the different termination approach during assembly, but the resulting connector interface is fully compatible.

Q: Are there wire gauge limitations when substituting? A: The original 1751420000 supports 20-22 AWG (0.35-0.5mm²). Both substitutes support broader ranges: 1597400000 supports 14-28 AWG (0.2-1.5mm²) and 2459090000 supports 16-26 AWG (0.14-1.5mm²). Wire gauges within the original specification are fully compatible with both substitutes.

Q: What is the significance of the different wire entry angles? A: The original 1751420000 features 90° and 270° wire entry (right-angle entry from either side). Both substitutes feature 180° wire entry (straight-in entry). Physical space requirements and cable routing may differ. Verify that the 180° entry orientation accommodates existing cable management in your application.

Q: Are both substitutes RoHS compliant? A: Yes. The 1597400000 is RoHS Compliant. The 2459090000 is ROHS3 Compliant, representing the current regulatory standard. Both meet RoHS requirements for new designs and applications.

Q: Which substitute should be selected for high-temperature applications? A: The 2459090000 supports operating temperatures up to 120°C, compared to 100°C for the 1597400000 and 80°C for the original 1751420000. For applications exceeding 100°C, the 2459090000 is the appropriate selection.