Weidmüller 1751140000 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1751140000 is a 7-position terminal block plug with female sockets, 0.138" (4.60mm) pitch, designed for 180° free-hanging in-line applications. This component features IDC termination and is part of the Omnimate BL series. The part is currently obsolete, making equivalent substitutes necessary for ongoing system maintenance and new designs requiring compatible connectivity solutions.

Substiute Parts

1751140000

WeidmüllerIn Stock: 8531751140000 Datasheet

Current PartRFQ

1606690000

WeidmüllerIn Stock: 10731606690000 Datasheet

MFR RecommendedRFQ

2459440000

WeidmüllerIn Stock: 8132459440000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1751140000 is determined by the following core parameters that must remain consistent:

• 7-position configuration with 0.138" (4.60mm) pitch spacing
• Female socket connector type
• 180° free-hanging in-line mounting orientation
• Copper alloy contacts with tin mating finish
• Orange housing color
• UL94 V-0 flammability rating
• RoHS compliance

The substitute parts 1606690000 and 2459440000 maintain these core mechanical and electrical compatibility requirements. However, they differ in termination methodology, current/voltage ratings, wire gauge acceptance ranges, and operating temperature specifications. These differences represent functional enhancements while preserving physical and electrical interface compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain active product status with full RoHS compliance and UL94 V-0 flammability certification, ensuring regulatory continuity for applications currently using the obsolete 1751140000.

1606690000 provides screw-clamping termination with expanded wire gauge acceptance (14-28 AWG / 0.2-1.5mm²) and enhanced current ratings (17A IEC, 10A UL). This part accommodates a broader range of conductor sizes while maintaining the same housing material (PBT) as the original.

2459440000 offers screwless spring-cage termination with the widest wire gauge range (16-26 AWG / 0.14-1.5mm²) and the highest current rating (17.5A IEC, 10A UL). This part features glass-filled polyamide housing and the highest operating temperature specification (-50°C ~ 120°C), providing enhanced thermal performance. The push-button actuated design eliminates screw-based assembly requirements.

Both substitutes provide IP20 ingress protection and expanded operating temperature ranges not specified in the original part. Selection between them depends on termination methodology preference and wire gauge requirements for the specific application.

Frequently Asked Questions (FAQ)

Q: Can 1606690000 or 2459440000 directly replace 1751140000 in existing assemblies?

A: Physical and electrical interface compatibility is maintained. The 7-position, 4.60mm pitch, 180° free-hanging configuration is identical. However, termination methodology differs: the original uses IDC, while substitutes use screw-clamping (1606690000) or screwless spring-cage (2459440000) termination. Mating connector compatibility must be verified for the specific application.

Q: What are the wire gauge limitations for each part?

A: The original 1751140000 accepts 20-22 AWG (0.35-0.5mm²). Substitute 1606690000 accepts 14-28 AWG (0.2-1.5mm²), and 2459440000 accepts 16-26 AWG (0.14-1.5mm²). Both substitutes accommodate wider conductor ranges, providing flexibility for applications with varying wire specifications.

Q: Are there differences in current-carrying capacity?

A: Yes. The original 1751140000 is rated for 6A (IEC) and 7A (UL). Both substitutes provide higher ratings: 1606690000 at 17A (IEC) and 10A (UL), and 2459440000 at 17.5A (IEC) and 10A (UL). Applications operating near the original current limits benefit from the enhanced capacity of the substitutes.

Q: What is the difference between screw-clamping and screwless termination?

A: 1606690000 uses screw-clamping yoke (tension sleeve) termination requiring manual screw tightening to specified torque (0.2-0.25 Nm). 2459440000 uses screwless spring-cage tension clamp with push-button actuation, eliminating torque specification requirements and reducing assembly time.

Q: Do the substitutes maintain the same housing color and material properties?

A: Both maintain orange color. 1606690000 retains the original PBT housing material. 2459440000 uses glass-filled polyamide (PA/nylon), which provides enhanced thermal performance (operating to 120°C versus 100°C for 1606690000) and improved mechanical strength.

Q: Are all parts RoHS compliant and UL94 V-0 rated?

A: Yes. All three parts—the original 1751140000 and both substitutes 1606690000 and 2459440000—are RoHS compliant and carry UL94 V-0 flammability certification, ensuring regulatory compliance across applications.