Weidmüller 1554810000 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1554810000 is a 23-position terminal block plug with female sockets, 0.200" (5.08mm) pitch, and 90° wire entry configuration. 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 400V/15A and UL 300V/10A specifications, supporting wire gauges from 12-26 AWG (0.2-2.5mm²).

Substiute Parts

1554810000

WeidmüllerIn Stock: 9551554810000 Datasheet

Current PartRFQ

1948450000

WeidmüllerIn Stock: 8871948450000 Datasheet

DirectRFQ

OSTVM235551

On Shore Technology Inc.In Stock: 788OSTVM235551 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 1554810000 is determined by the following critical parameters:

Primary Compatibility Criteria:

• 23-position configuration with 0.200" (5.08mm) pitch spacing
• Female socket plug type with screw termination
• Free hanging (in-line) mounting orientation
• Voltage rating minimum 300V UL / 400V IEC
• Current rating minimum 10A UL / 15A IEC
• Wire gauge support minimum 12-26 AWG (0.2-2.5mm²)
• Operating temperature range encompassing -50°C to 100°C
• UL94 V-0 flammability rating
• RoHS compliance

Substitute Classification:

Direct Substitute (1948450000): Weidmüller manufacturer part with identical pitch, position count, and wire entry angle (90°). Exceeds electrical specifications with 20A UL / 23A IEC ratings and expanded wire gauge support (12-30 AWG, 0.2-4mm²). Active product status ensures availability. Identical screw size (M2.5) and torque specifications (0.4-0.5 Nm) confirm mechanical compatibility.

Similar Substitute (OSTVM235551): On Shore Technology Inc. part with matching 23-position, 5.08mm pitch configuration and female socket type. Wire entry differs at 180° (straight) versus 90° (angled), requiring mechanical layout verification. Termination uses pressure clip instead of clamping yoke. Acceptable for applications where wire entry orientation and termination method do not conflict with system design. UL 20A rating meets minimum requirements; wire gauge support (12-22 AWG) is narrower than original specification.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): Select Weidmüller 1948450000. This part maintains identical mechanical and electrical interface characteristics with the obsolete 1554810000, including 90° wire entry angle, clamping yoke termination, and M2.5 screw specifications. Active product status ensures supply chain availability. Enhanced electrical ratings (20A UL / 23A IEC) and expanded wire gauge support (12-30 AWG) provide design margin without requiring system modifications. RoHS compliance and UL94 V-0 flammability rating match original specifications.

For Layout-Flexible Applications: Select On Shore Technology Inc. OSTVM235551 when system design permits 180° straight wire entry instead of 90° angled entry. This part meets minimum electrical requirements (20A UL, 300V) and maintains 23-position, 5.08mm pitch compatibility. Verify that pressure clip termination method is compatible with existing wire preparation and installation procedures. Wire gauge support (12-22 AWG) is narrower; confirm all connected wires fall within this range. Active product status and ROHS3 compliance support long-term availability.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1948450000 directly replace the obsolete 1554810000 without system modifications?

A: Yes. The 1948450000 maintains identical pitch (5.08mm), position count (23), wire entry angle (90°), and termination method (screw clamping yoke). Mechanical and electrical interfaces are fully compatible. No system redesign is required.

Q: What is the primary difference between the direct substitute (1948450000) and the similar substitute (OSTVM235551)?

A: The 1948450000 retains the 90° wire entry angle and clamping yoke termination of the original part. The OSTVM235551 uses 180° straight wire entry and pressure clip termination. Select based on your system's wire routing and termination requirements.

Q: Does the OSTVM235551 support the same wire gauge range as the original 1554810000?

A: No. The OSTVM235551 supports 12-22 AWG, while the original supports 12-26 AWG. Verify all wires in your application fall within the 12-22 AWG range before selecting this substitute.

Q: Are all three parts RoHS compliant?

A: Yes. The 1554810000 and 1948450000 are RoHS Compliant. The OSTVM235551 is ROHS3 Compliant. All meet RoHS requirements for new designs.

Q: What is the minimum current rating I should use for system design?

A: For the original 1554810000, use 10A (UL) or 15A (IEC) as the limiting specification. Both substitutes exceed these ratings (20A UL / 23A IEC for 1948450000; 20A UL for OSTVM235551), allowing higher current capacity if needed.

Q: Can I use the OSTVM235551 if my system requires -50°C operation?

A: No. The OSTVM235551 operates from -30°C to 105°C, which does not cover the -50°C lower limit of the original part. Use the Weidmüller 1948450000 for applications requiring -50°C operation.

Q: What torque specification should I use when installing these parts?

A: For the 1554810000 and 1948450000, apply 0.4-0.5 Nm (4.6-4.4 Lb-In). For the OSTVM235551, apply 0.4 Nm (4.6 Lb-In). Do not exceed these values to prevent contact damage.