Weidmüller 1645440000 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1645440000 is a 23-position terminal block plug with male pins, 0.200" (5.08mm) pitch, designed for 180° free-hanging in-line applications. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The part operates within IEC ratings of 12A at 250V and UL ratings of 15A at 300V, with screw-clamping termination suitable for wire gauges 12-28 AWG.

Substiute Parts

1645440000

WeidmüllerIn Stock: 11281645440000 Datasheet

Current PartRFQ

1645210000

WeidmüllerIn Stock: 9471645210000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Weidmüller 1645440000 is evaluated based on the following critical parameters that must align for functional compatibility:

Primary Matching Criteria:

• Number of positions: 23
• Pitch: 0.200" (5.08mm)
• Type: Plug with male pins
• Mounting type: Free hanging (in-line)
• Termination style: Screw-clamping mechanism
• Series compatibility: Omnimate SL

Secondary Compatibility Parameters:

• Screw size: M2.5
• Torque specification: 0.4-0.5 Nm
• Wire strip length: 7mm
• Contact material: Copper alloy
• Housing material: Polybutylene terephthalate (PBT)
• Flammability rating: UL94 V-0

The substitute part 1645210000 maintains all primary matching criteria and secondary compatibility parameters, confirming functional interchangeability within the Omnimate SL series.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 1645210000 is the designated substitute for the obsolete 1645440000 terminal block plug. Selection of this substitute is supported by the following engineering factors:

Product Status: The 1645210000 maintains active product status, ensuring continued availability and manufacturer support, whereas the 1645440000 is classified as obsolete.

Regulatory Compliance: Both components maintain identical REACH unaffected status and EAR99 export classification, confirming equivalent regulatory standing.

Electrical Performance: The 1645210000 meets or exceeds all electrical specifications of the main part. IEC ratings increase to 21.5A at 400V, and UL ratings remain within acceptable parameters at 14A at 300V, both suitable for applications originally specified for the 1645440000.

Mechanical Compatibility: All mechanical parameters including pitch, position count, screw size, torque specification, and mounting configuration remain identical, ensuring direct mechanical interchangeability.

Material and Safety Specifications: Both components utilize identical housing material (PBT), contact material (copper alloy), and flammability rating (UL94 V-0), confirming equivalent safety and environmental performance.

Temperature Range: The 1645210000 extends the lower operating temperature limit to -50°C, providing enhanced thermal performance compared to the -20°C minimum of the main part.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1645210000 be used as a direct replacement for the 1645440000?

A: Yes. Both components share identical mechanical configuration (23 positions, 5.08mm pitch), termination method (screw-clamping), mounting type (free hanging in-line), and material specifications. The 1645210000 meets or exceeds all electrical ratings of the 1645440000.

Q: What is the difference in wire gauge compatibility between these parts?

A: The 1645440000 accepts 12-28 AWG (2.5mm²), while the 1645210000 accepts 12-26 AWG (0.2-2.5mm²). The substitute part does not accommodate 28 AWG wire. Applications using 28 AWG conductors require evaluation of alternative solutions.

Q: Why does the 1645210000 have higher current and voltage ratings?

A: The 1645210000 is rated for 21.5A at 400V (IEC) compared to 12A at 250V (IEC) for the 1645440000. These enhanced ratings reflect design improvements in the active product line and do not affect compatibility. Applications may operate at the lower original specifications without issue.

Q: Are there packaging differences between these parts?

A: The 1645440000 is supplied in unspecified packaging, while the 1645210000 is supplied in bulk packaging. This difference affects procurement and inventory management but does not impact functional performance.

Q: What is the significance of the product status difference?

A: The 1645440000 is classified as obsolete, indicating discontinued manufacture and limited availability. The 1645210000 maintains active status, ensuring ongoing production, technical support, and supply chain reliability.

Q: Do both parts require identical screw torque specifications?

A: Yes. Both the 1645440000 and 1645210000 require M2.5 screws torqued to 0.4-0.5 Nm (4.6-4.4 Lb-In), ensuring identical installation procedures and mechanical integrity.

Q: Are there any compliance or certification differences?

A: No. Both components maintain identical REACH unaffected status, EAR99 export classification, and UL94 V-0 flammability rating. Regulatory and safety compliance is equivalent.