Equivalent & Substitute Parts for Weidmüller 1751490000 Terminal Block Plug

Part Overview

The Weidmüller 1751490000 is a 6-position terminal block plug with female sockets, 4.6mm pitch, designed for free-hanging in-line applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new designs requiring compatible interconnection solutions.

Substiute Parts

1751490000

WeidmüllerIn Stock: 7791751490000 Datasheet

Current PartRFQ

1597400000

WeidmüllerIn Stock: 15301597400000 Datasheet

MFR RecommendedRFQ

2459090000

WeidmüllerIn Stock: 8042459090000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1751490000 is based on the following critical parameters that must remain consistent:

• Pitch and Position Count: All substitutes maintain 4.6mm pitch with 6 positions to ensure mechanical and electrical compatibility with mating connectors
• Connector Type: All alternatives are female socket plugs for free-hanging in-line mounting
• Electrical Ratings: Substitute parts must support the required voltage and current specifications for the application
• Wire Gauge Compatibility: Wire termination ranges must accommodate the conductor sizes used in the original design
• Housing Material and Flammability: All parts maintain UL94 V-0 rating and compatible housing materials
• Contact Material: Copper alloy with tin mating finish across all alternatives ensures consistent contact performance

The two identified substitutes differ in termination methodology (screw-clamping versus spring-cage) and wire entry orientation (180° versus 90°/270°), representing different design approaches within the same connector family while maintaining core electrical and mechanical compatibility parameters.

Parameter Comparison

Engineering Selection Recommendations

1597400000 Selection Criteria: This substitute is an active product with screw-clamping termination. It provides expanded wire gauge compatibility (14-28 AWG) and higher electrical ratings (17A at 320V IEC). The 180° wire entry orientation differs from the original 90°/270° configuration, requiring mechanical layout adjustment. This part is suitable for applications where screw-terminal reliability and higher current capacity are required.

2459090000 Selection Criteria: This substitute features screwless spring-cage termination with the widest wire gauge range (16-26 AWG, 0.14-1.5mm²) and highest temperature rating (-50°C to 120°C). The 180° wire entry and spring-cage design eliminate screw torque requirements. This part is suitable for applications prioritizing tool-free installation and extended temperature operation. ROHS3 compliance indicates current regulatory alignment.

Both substitutes maintain the core mechanical interface (6 positions, 4.6mm pitch, female sockets, free-hanging mounting) and electrical safety standards (UL94 V-0, IP20) of the original component. Selection between them depends on termination methodology preference and specific application requirements for wire gauge range and temperature performance.

Frequently Asked Questions (FAQ)

Q: Can 1597400000 or 2459090000 directly replace 1751490000 in existing installations? A: Mechanical compatibility is maintained through identical pitch (4.6mm), position count (6), and connector type (female socket plug). However, the wire entry orientation differs (180° versus 90°/270°), requiring physical layout assessment. Termination method changes (IDC to screw-clamping or spring-cage) necessitate installation procedure modification.

Q: What is the significance of the wire gauge range differences? A: The original 1751490000 accepts 20-22 AWG (0.35-0.5mm²). Substitute 1597400000 expands this to 14-28 AWG (0.2-1.5mm²), and 2459090000 to 16-26 AWG (0.14-1.5mm²). Wider ranges provide flexibility for different conductor sizes but do not affect compatibility if the original wire gauge falls within the substitute's range.

Q: How do termination style differences affect application suitability? A: The original IDC (Insulation Displacement Contact) termination differs fundamentally from screw-clamping (1597400000) and spring-cage (2459090000) methods. IDC requires specialized crimping tools, while screw-clamping requires torque control (0.2-0.25 Nm for 1597400000), and spring-cage requires no tools. Selection depends on available installation equipment and process requirements.

Q: Are the electrical ratings of substitutes backward compatible? A: Yes. Both substitutes exceed the original ratings: 1597400000 provides 17A at 320V (versus 6A at 250V), and 2459090000 provides 17.5A at 320V. Applications designed for the original 1751490000 specifications operate safely within substitute ratings. Higher ratings do not compromise performance in lower-demand applications.

Q: What is the impact of operating temperature range differences? A: The original part operates -50°C to 80°C. Substitute 1597400000 extends to 100°C, and 2459090000 to 120°C. For applications within the original temperature range, both substitutes are suitable. For applications requiring extended temperature performance, 2459090000 is the appropriate choice.

Q: Do packaging differences affect component selection? A: Both substitutes are supplied in bulk packaging. The original part number does not specify packaging detail. Bulk packaging is standard for terminal block components and does not affect electrical or mechanical performance.

Q: How do housing material differences impact performance? A: The original uses Polybutylene Terephthalate (PBT), while 2459090000 uses Polyamide (PA) nylon with glass filling. Both maintain UL94 V-0 flammability rating. PA glass-filled material provides enhanced mechanical strength and temperature stability, supporting the extended 120°C operating range of 2459090000.