Weidmüller 1751400000 Terminal Block Plug Equivalent & Substitute Parts

Part Overview

The Weidmüller 1751400000 is a 4-position terminal block plug with female sockets, 0.138" (4.60mm) pitch, designed for 90° and 270° free-hanging in-line applications. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new designs requiring compatible connectivity solutions.

Substiute Parts

1751400000

WeidmüllerIn Stock: 9161751400000 Datasheet

Current PartRFQ

1597380000

WeidmüllerIn Stock: 19581597380000 Datasheet

MFR RecommendedRFQ

2459070000

WeidmüllerIn Stock: 12032459070000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 1751400000 is determined by the following core parameters that must remain consistent:

• Pitch (4.60mm): All substitute parts maintain the 0.138" (4.60mm) pitch for mechanical and electrical compatibility
• Number of Positions (4): All substitutes provide 4-position configuration
• Type (Plug, Female Sockets): All substitutes are plug-type connectors with female sockets
• Mounting Type (Free Hanging In-Line): All substitutes support free-hanging in-line mounting
• Series (Omnimate BL): All substitutes belong to the Omnimate BL product family
• Housing Material: All substitutes use either Polybutylene Terephthalate (PBT) or Polyamide (PA) with glass fill
• Contact Material: All substitutes use Copper Alloy contacts with tin mating finish
• Ingress Protection (IP20): All substitutes maintain IP20 rating
• Flammability (UL94 V-0): All substitutes meet UL94 V-0 material flammability requirements

The primary differences among substitutes relate to wire entry angle, termination style, and electrical ratings, which are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products within the Omnimate BL series and maintain full RoHS and REACH compliance. Selection between 1597380000 and 2459070000 depends on application-specific requirements:

1597380000 is recommended for applications requiring screw-based termination with clamping yoke tension sleeve technology. This part supports a broader wire gauge range (14-28 AWG, 0.2-1.5mm²) and higher IEC current rating (17A). The 180° wire entry orientation requires straight-in connector alignment. Operating temperature range extends to 100°C.

2459070000 is recommended for applications requiring screwless spring cage termination with push-button actuation. This part supports the widest wire gauge range (16-26 AWG, 0.14-1.5mm²) and highest IEC current rating (17.5A). The 180° wire entry orientation requires straight-in connector alignment. Operating temperature range extends to 120°C, providing the highest thermal capability.

Both substitutes provide superior electrical ratings compared to the obsolete 1751400000. The primary design consideration is termination method: screw-based (1597380000) versus screwless spring cage (2459070000). Wire entry angle changes from 90°/270° (original) to 180° (both substitutes) require mechanical layout verification.

Frequently Asked Questions (FAQ)

Q: Can 1597380000 or 2459070000 directly replace 1751400000 in existing designs?

A: Mechanical compatibility requires verification. The original 1751400000 supports 90° and 270° wire entry angles, while both substitutes support only 180° wire entry. Connector orientation and PCB layout must be assessed. Electrical compatibility is confirmed: both substitutes exceed the original part's current and voltage ratings.

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

A: Termination technology differs. The 1597380000 uses screw-based clamping yoke termination with M2 screw specification (0.2-0.25 Nm torque). The 2459070000 uses screwless spring cage termination with push-button actuation. Both maintain 4-position, 4.60mm pitch configuration and free-hanging in-line mounting.

Q: Are there wire gauge compatibility considerations?

A: Yes. The original 1751400000 accepts 20-22 AWG (0.35-0.5mm²). The 1597380000 accepts 14-28 AWG (0.2-1.5mm²), and the 2459070000 accepts 16-26 AWG (0.14-1.5mm²). Both substitutes accommodate the original wire gauge range and extend capability to finer and heavier gauges.

Q: What are the operating temperature differences?

A: The original 1751400000 operates -50°C to 80°C. The 1597380000 extends to 100°C. The 2459070000 provides the highest thermal range at -50°C to 120°C. Application thermal requirements determine which substitute is appropriate.

Q: Do both substitutes maintain the same ingress protection and flammability ratings?

A: Yes. Both substitutes maintain IP20 ingress protection and UL94 V-0 material flammability rating, matching the original part's environmental and safety specifications.

Q: What packaging is available for these substitute parts?

A: Both 1597380000 and 2459070000 are supplied in bulk packaging, with 1874 and 1141 pieces respectively available in current inventory.