Weidmüller 27476 Equivalent & Substitute Parts

Part Overview

The Weidmüller 27476 is an 11-circuit barrier block connector with screw termination, rated for 20A at 300V. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new designs requiring compatible barrier block functionality. The part accommodates wire gauges from 12-22 AWG and features an enclosed barrier design with dual-row configuration across 22 wire entry points.

Substiute Parts

27476

WeidmüllerIn Stock: 77727476 Datasheet

Current PartRFQ

1-1546306-1

TE Connectivity AMP ConnectorsIn Stock: 8791-1546306-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Weidmüller 27476 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Core Substitution Criteria:

• Terminal block type: Barrier block configuration
• Circuit count: 11 circuits minimum
• Wire entry points: 22 entries
• Row configuration: 2 rows
• Current rating: 20A minimum
• Voltage rating: 300V minimum
• Wire gauge compatibility: 12-22 AWG
• Termination method: Screw-based top termination with closed bottom
• Mounting compatibility: Chassis and panel mounting capability

The TE Connectivity AMP Connectors part 1-1546306-1 meets all core substitution criteria while offering enhanced specifications including defined operating temperature range, improved flammability rating, and active product status.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 1-1546306-1 is the qualified substitute for the obsolete Weidmüller 27476. Selection is based on:

Product Status: The substitute part maintains active product status, ensuring continued availability and manufacturing support, whereas the original part is obsolete.

Compliance & Certifications: The TE Connectivity part carries RoHS compliance and UL94 V-0 flammability rating, providing enhanced regulatory alignment for modern applications. Both parts maintain identical electrical ratings and moisture sensitivity classification.

Electrical & Mechanical Compatibility: All critical parameters—circuit count, wire entries, current and voltage ratings, wire gauge range, and termination methods—are identical between the main part and substitute. The defined operating temperature range (-40°C ~ 120°C) for the substitute part provides explicit thermal performance specification.

Physical Integration: Both parts support identical mounting configurations (chassis and panel) and maintain the same row and circuit architecture, enabling direct mechanical substitution in existing designs.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1-1546306-1 directly replace the Weidmüller 27476?

A: Yes. Both parts share identical electrical ratings (20A, 300V), circuit configuration (11 circuits, 22 wire entries), wire gauge compatibility (12-22 AWG), and mounting methods (chassis and panel). The substitute part meets all functional and mechanical requirements for direct replacement.

Q: What is the pitch specification for these barrier blocks?

A: The Weidmüller 27476 does not specify pitch in the provided data. The TE Connectivity substitute part specifies 0.374" (9.50mm) pitch. Pitch compatibility must be verified against your specific application requirements and PCB or mounting surface design.

Q: Are there differences in barrier design between these parts?

A: The Weidmüller 27476 features an enclosed barrier type. The TE Connectivity 1-1546306-1 specifies a 2-wall (dual) barrier design with flange features, providing enhanced electrical isolation and mechanical stability.

Q: What is the significance of the RoHS compliance status?

A: The TE Connectivity substitute part is RoHS compliant, meeting Restriction of Hazardous Substances regulations. The Weidmüller part's RoHS status is not specified in the provided data. For applications requiring RoHS compliance, the TE Connectivity part is the appropriate selection.

Q: How do the operating temperature ranges compare?

A: The Weidmüller 27476 does not specify an operating temperature range. The TE Connectivity 1-1546306-1 operates from -40°C to 120°C, providing explicit thermal performance specification for temperature-sensitive applications.

Q: Are the screw materials and finishes identical?

A: The Weidmüller 27476 does not specify terminal screw material or finish. The TE Connectivity substitute part uses steel screws with nickel finish, providing defined corrosion resistance and electrical conductivity characteristics.