Phoenix Contact 5437949 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 5437949 is a 2-position terminal block plug with female sockets, 0.197" (5.00mm) pitch, and 90° free-hanging (in-line) configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The part features screw termination, tin contact mating finish, and compliance with UL94 V-0 flammability standards.

Substiute Parts

5437949

Phoenix ContactIn Stock: 11275437949 Datasheet

Current PartRFQ

1726088

Phoenix ContactIn Stock: 10611726088 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 5437949 is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Number of positions: 2
• Pitch: 0.197" (5.00mm)
• Plug wire entry orientation: 90°
• Mounting type: Free Hanging (In-Line)
• Type: Plug with female sockets
• Wire gauge compatibility: 12-30 AWG (0.2-2.5mm²)
• Contact mating finish: Tin
• Insulation height: 1.024" (26.01mm)

Acceptable Variation Parameters:

• Termination style: Screw or screw-based variants (rising cage clamp acceptable)
• Current rating: Equal to or greater than 12A (IEC)
• Voltage rating: Equal to or greater than 630V (IEC) or 300V (UL)
• RoHS compliance status

The Phoenix Contact 1726088 qualifies as a substitute based on these criteria. Both components share identical position count, pitch, wire entry angle, mounting configuration, wire gauge range, contact finish, and insulation height. The 1726088 employs a rising cage clamp termination variant while maintaining screw-based connection methodology.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1726088 serves as the primary substitute for the obsolete 5437949 model. Both components maintain identical mechanical and electrical compatibility across all critical interface parameters. The 1726088 offers the advantage of active product status, ensuring continued availability and supply chain reliability.

The 1726088 employs a rising cage clamp termination mechanism in place of standard screw termination. This represents a functional enhancement within the screw-based connection family, providing equivalent or improved connection reliability.

Voltage rating consideration: The 1726088 specifies 250V IEC versus the 5437949's 630V IEC rating. For applications operating at or below 250V IEC, this substitution is directly applicable. Applications requiring the full 630V IEC rating of the original component require verification that the 1726088's 250V IEC specification meets system requirements.

Both components maintain RoHS compliance and identical wire gauge accommodation (12-30 AWG / 0.2-2.5mm²), ensuring compatibility with existing wiring infrastructure.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1726088 directly replace the 5437949 in existing installations?

A: Direct mechanical and electrical compatibility exists for all interface parameters. The primary consideration is voltage rating: the 1726088 is rated 250V IEC compared to the 5437949's 630V IEC. Substitution is valid for applications operating within the 1726088's voltage specification.

Q: What is the difference between screw termination and rising cage clamp termination?

A: Both are screw-based connection methods. The rising cage clamp variant in the 1726088 provides an alternative mechanical implementation of screw-based wire termination while maintaining functional equivalence for the specified wire gauge range (12-30 AWG / 0.2-2.5mm²).

Q: Are the physical dimensions identical between these two parts?

A: Both components share identical insulation height (1.024" / 26.01mm), pitch (0.197" / 5.00mm), and mounting configuration (free hanging, in-line). The rising cage clamp termination may present minor dimensional variations in the wire entry region, though both maintain the 90° wire entry orientation.

Q: Does the 1726088 support the same wire gauge range as the 5437949?

A: Yes. Both components accommodate 12-30 AWG wire gauge (0.2-2.5mm²), ensuring compatibility with existing wiring specifications.

Q: What is the significance of the 5437949 being classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 1726088, classified as active, represents the current production equivalent, ensuring ongoing availability for new designs and system maintenance.

Q: Are both components RoHS compliant?

A: Yes. Both the 5437949 and 1726088 maintain RoHS compliance status.