Weidmüller 1751110000 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1751110000 is a 4-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 substitute parts necessary for ongoing system maintenance and new designs requiring compatible connectivity solutions.

Substiute Parts

1751110000

WeidmüllerIn Stock: 11411751110000 Datasheet

Current PartRFQ

1606660000

WeidmüllerIn Stock: 8721606660000 Datasheet

MFR RecommendedRFQ

2459410000

WeidmüllerIn Stock: 8532459410000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 1751110000 is based on the following critical parameters that must remain consistent:

• 4-position configuration with 0.138" (4.60mm) pitch spacing
• Female socket type with 180° wire entry orientation
• Free-hanging in-line mounting configuration
• Orange housing color
• Copper alloy contacts with tin mating finish
• Polybutylene Terephthalate (PBT) or compatible housing material
• UL94 V-0 flammability rating
• RoHS compliance

The two substitute parts listed below maintain these core electrical and mechanical parameters while offering improvements in termination technology, current/voltage ratings, and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products from Weidmüller's Omnimate BL series and maintain full compatibility with the 1751110000 in terms of physical mating geometry, pitch spacing, and connector orientation.

1606660000 offers screw-clamping termination with enhanced current capacity (17A IEC) and expanded wire gauge compatibility (14-28 AWG). This part provides a direct upgrade path for applications requiring higher current handling and broader wire size accommodation.

2459410000 features screwless spring-cage termination with the highest current rating (17.5A IEC) and extended operating temperature range (-50°C to 120°C). The push-button actuated design and glass-filled nylon housing provide additional mechanical robustness. The reduced insulation height (8.43mm) should be evaluated for space-constrained applications.

Both substitutes are RoHS compliant and maintain UL94 V-0 flammability ratings. Selection between them depends on termination method preference, wire gauge requirements, and thermal operating conditions of the target application.

Frequently Asked Questions (FAQ)

Q: Can 1606660000 and 2459410000 be used interchangeably with 1751110000?

A: Both parts maintain the same 4-position, 4.60mm pitch configuration and 180° wire entry orientation required for mechanical compatibility. However, termination methods differ: the original uses IDC, while substitutes use screw-clamping and spring-cage respectively. Connector compatibility with mating headers depends on the header design accepting these termination styles.

Q: What is the primary difference between the two substitute parts?

A: 1606660000 uses screw-clamping termination with M2 screws and supports wire gauges 14-28 AWG. 2459410000 uses screwless spring-cage termination with push-button actuation and supports wire gauges 16-26 AWG. The 2459410000 offers higher current capacity (17.5A vs 17A IEC) and extended temperature range (-50°C to 120°C vs -50°C to 100°C).

Q: Are there wire gauge compatibility considerations?

A: The original 1751110000 accepts 20-22 AWG (0.35-0.5mm²). The 1606660000 expands this to 14-28 AWG (0.2-1.5mm²), while 2459410000 supports 16-26 AWG (0.14-1.5mm²). Both substitutes accommodate the original wire gauge range and extend it, providing flexibility for system redesigns.

Q: Do the substitute parts have different physical dimensions?

A: Insulation heights differ: 1751110000 is 0.492" (12.50mm), 1606660000 is 0.512" (13.00mm), and 2459410000 is 0.332" (8.43mm). The 2459410000's reduced height may be advantageous in space-limited enclosures but should be verified against mating connector specifications.

Q: What certifications and compliance standards apply?

A: All three parts are RoHS compliant, UL94 V-0 rated, and classified as EAR99 for export control. The 1606660000 and 2459410000 provide IP20 ingress protection, while the original specification does not list this rating. REACH status is unaffected for all parts.

Q: Which substitute is recommended for new designs?

A: Selection depends on application requirements. For screw-terminal preference with broad wire gauge support, use 1606660000. For tool-free assembly and maximum current capacity with extended temperature range, use 2459410000. Both are active products with established supply chains.