Weidmüller 1638000000 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1638000000 is a 21-position terminal block plug with female sockets, 5.00mm pitch, and 270° wire entry orientation. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new designs requiring compatible connectivity solutions. The part operates within IEC and UL electrical standards and is suitable for industrial control and power distribution applications.

Substiute Parts

1638000000

WeidmüllerIn Stock: 6961638000000 Datasheet

Current PartRFQ

1958910000

WeidmüllerIn Stock: 10191958910000 Datasheet

DirectRFQ

OSTVM215551

On Shore Technology Inc.In Stock: 832OSTVM215551 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Weidmüller 1638000000 are classified based on the following critical parameters that determine functional compatibility:

Direct Substitute (1958910000): This Weidmüller part maintains identical mechanical and electrical specifications with the main part, including 21 positions, 5.00mm pitch, 270° wire entry, screw-clamping termination, and free-hanging mounting. The substitute is an active product with enhanced current ratings (23A IEC, 20A UL) and expanded wire gauge compatibility (12-30 AWG, 0.2-4mm²). Electrical performance meets or exceeds the original specification.

Similar Substitute (OSTVM215551): This On Shore Technology Inc. part provides functional equivalence with notable parameter variations. It maintains 21 positions and free-hanging mounting but differs in pitch (5.08mm vs. 5.00mm), wire entry angle (180° vs. 270°), and termination method (pressure clip vs. clamping yoke). Wire gauge compatibility is narrower (12-22 AWG). This part is suitable only when mechanical orientation and termination method differences are acceptable in the application.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: Select Weidmüller 1958910000 when the original 1638000000 is no longer available. This part is an active product with identical mechanical interface and superior electrical ratings. It maintains the same 5.00mm pitch, 270° wire entry, and screw-clamping termination, ensuring drop-in compatibility. Both parts carry RoHS compliance and UL94 V-0 flammability certification.

For Alternative Applications: Select On Shore Technology Inc. OSTVM215551 only when mechanical orientation flexibility exists. The 180° wire entry and pressure-clip termination represent functional differences that may require connector redesign or repositioning within the assembly. The narrower wire gauge range (12-22 AWG) limits applicability to smaller conductor sizes. This part is suitable for new designs where the different mechanical interface is accommodated.

Compliance Considerations: All three parts meet RoHS requirements and UL94 V-0 flammability standards. The 1958910000 maintains identical compliance posture to the obsolete original. The OSTVM215551 carries ROHS3 compliance, indicating current regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1958910000 replace the 1638000000 without modification?

A: Yes. The 1958910000 maintains identical pitch (5.00mm), wire entry angle (270°), termination method (screw-clamping yoke), and mounting type (free-hanging in-line). Mechanical and electrical interfaces are fully compatible. The substitute provides enhanced current ratings and expanded wire gauge range.

Q: What are the key differences between the Weidmüller 1958910000 and the On Shore OSTVM215551?

A: The primary differences are pitch (5.00mm vs. 5.08mm), wire entry angle (270° vs. 180°), and termination method (clamping yoke vs. pressure clip). The OSTVM215551 also uses steel contacts with zinc finish instead of copper alloy with tin finish, and supports a narrower wire gauge range (12-22 AWG vs. 12-30 AWG).

Q: Is the On Shore OSTVM215551 a direct replacement?

A: No. While it maintains 21 positions and free-hanging mounting, the different pitch, wire entry angle, and termination method require mechanical redesign or repositioning. Use this part only when the application can accommodate these differences.

Q: What wire gauges are supported by each part?

A: The 1638000000 supports 12-26 AWG (0.5-2.5mm²). The 1958910000 supports 12-30 AWG (0.2-4mm²). The OSTVM215551 supports 12-22 AWG only.

Q: Are all three parts RoHS compliant?

A: Yes. The 1638000000 and 1958910000 are RoHS Compliant. The OSTVM215551 is ROHS3 Compliant, indicating current regulatory status.

Q: What is the current rating difference between the main part and its direct substitute?

A: The 1638000000 is rated 15A IEC and 10A UL. The 1958910000 is rated 23A IEC and 20A UL. Both operate at 400V IEC and 300V UL. The substitute provides higher current capacity.

Q: Can the OSTVM215551 be used in applications requiring 270° wire entry?

A: No. The OSTVM215551 has 180° wire entry, which is mechanically incompatible with designs requiring 270° orientation. Connector repositioning or redesign would be necessary.