Weidmüller 1561660000 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1561660000 is a 22-position terminal block plug with female sockets, 0.200" (5.08mm) pitch, and 270° free-hanging wire entry configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations. The plug utilizes screw-clamping termination with retention latches and operates across industrial temperature ranges with IEC and UL voltage/current ratings.

Substiute Parts

1561660000

WeidmüllerIn Stock: 11541561660000 Datasheet

Current PartRFQ

OSTVM225551

On Shore Technology Inc.In Stock: 939OSTVM225551 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 1561660000 is determined by the following critical parameters:

• Position Count & Pitch: Both main and substitute parts must maintain 22 positions at 0.200" (5.08mm) pitch to ensure mechanical and electrical compatibility with mating connectors.
• Connector Type: Female socket plugs with free-hanging (in-line) mounting configuration.
• Termination Method: Screw-based clamping systems (including tension sleeve and pressure clip variants) are functionally equivalent for wire termination.
• Wire Entry Orientation: While the main part specifies 270° entry, alternative orientations (180°) may be acceptable depending on installation geometry constraints.
• Electrical Ratings: Substitute parts must meet or exceed the application's voltage and current requirements. The main part operates at IEC 400V/15A or UL 300V/10A; substitutes must support these or higher ratings.
• Wire Gauge Compatibility: Acceptable wire ranges must overlap with or encompass the main part's 12-26 AWG (0.2-2.5mm²) specification.
• Temperature Range: Operating temperature must accommodate the application environment; the main part supports -50°C ~ 100°C.
• Flammability & Compliance: UL94 V-0 rating and REACH compliance are standard requirements.

The On Shore Technology Inc. OSTVM225551 qualifies as a substitute based on matching position count, pitch, connector type, mounting configuration, termination method, screw size (M2.5), and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The On Shore Technology Inc. OSTVM225551 is an active-status substitute for the obsolete Weidmüller 1561660000. Selection should be based on the following factors:

Compatibility Factors:

• Both parts maintain identical 22-position, 0.200" (5.08mm) pitch configurations, ensuring mechanical interchangeability with existing mating connectors.
• M2.5 screw termination is common to both parts, supporting equivalent wire clamping procedures.
• UL94 V-0 flammability ratings and REACH compliance are matched across both components.

Electrical Considerations:

• The OSTVM225551 provides higher UL current rating (20A vs. 10A), exceeding the main part's electrical capacity.
• UL voltage rating (300V) is identical; IEC ratings are not specified for the substitute.
• Wire gauge range for the substitute (12-22 AWG) is narrower than the main part (12-26 AWG), excluding the finest gauge options.

Environmental & Operational Factors:

• The OSTVM225551 operates across -30°C ~ 105°C, compared to the main part's -50°C ~ 100°C. Applications requiring sub-zero operation below -30°C may require the original part or alternative sourcing.
• Wire entry orientation differs (180° vs. 270°), requiring verification of installation geometry and cable routing constraints.

Compliance & Availability:

• The OSTVM225551 is active-status with documented inventory availability, supporting long-term supply chain continuity.
• Both parts share identical ECCN (EAR99) and REACH compliance classifications.

Frequently Asked Questions (FAQ)

Q: Can the On Shore OSTVM225551 directly replace the Weidmüller 1561660000 in existing installations?

A: Mechanical and electrical compatibility is confirmed for the 22-position, 0.200" (5.08mm) pitch configuration. However, the 180° wire entry orientation of the OSTVM225551 differs from the 270° entry of the main part. Installation feasibility depends on cable routing geometry and available space. Verify wire entry angle compatibility before implementation.

Q: What is the significance of the narrower wire gauge range in the OSTVM225551?

A: The OSTVM225551 accepts 12-22 AWG wire, while the Weidmüller 1561660000 accepts 12-26 AWG. Applications using 24-26 AWG conductors cannot use the substitute without alternative termination solutions. Confirm wire gauge specifications for your application before selection.

Q: Are the screw termination methods equivalent between these parts?

A: Both parts use M2.5 screw-based clamping, but the main part employs a tension sleeve mechanism while the substitute uses a pressure clip. Both methods achieve equivalent wire retention and electrical contact. Torque specifications are comparable (0.4-0.5 Nm vs. 0.4 Nm), supporting standard termination procedures.

Q: Does the higher UL current rating of the OSTVM225551 affect compatibility?

A: No. The substitute's 20A UL rating exceeds the main part's 10A rating, providing additional electrical capacity margin. Applications designed for 10A operation remain fully compatible. The higher rating does not introduce incompatibility concerns.

Q: What are the temperature range implications for substitution?

A: The OSTVM225551 operates from -30°C ~ 105°C, while the main part supports -50°C ~ 100°C. Applications requiring operation below -30°C cannot use the substitute. Verify minimum operating temperature requirements for your system before selection.

Q: Are contact finish differences (tin vs. zinc) significant for substitution?

A: Both tin and zinc finishes provide adequate corrosion resistance and electrical conductivity for standard industrial applications. Contact finish selection depends on specific environmental exposure and corrosion resistance requirements. Consult application-specific environmental specifications if corrosion resistance is critical.

Q: What is the inventory status for each part?

A: The Weidmüller 1561660000 (obsolete) has 1135 pieces in stock. The On Shore OSTVM225551 (active) has 911 pieces in stock. For long-term supply assurance, the active-status substitute is recommended.