Phoenix Contact 5449021 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 5449021 is a 5-position terminal block plug with female sockets, 0.138" (4.60mm) pitch, and 90° wire entry. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and system maintenance. The part operates at 8A (IEC/UL) and 320V (IEC) / 300V (UL), designed for screw termination in free-hanging inline configurations. Locating functionally equivalent active-status alternatives ensures design continuity and supply chain reliability.

Substiute Parts

5449021

Phoenix ContactIn Stock: 12455449021 Datasheet

Current PartRFQ

1863181

Phoenix ContactIn Stock: 13671863181 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5449021 is based on strict equivalence across the following critical parameters:

• Electrical Performance: Current and voltage ratings must match or exceed the original (8A IEC, 320V IEC minimum)
• Physical Configuration: 5-position count, 0.138" (4.60mm) pitch, and 90° wire entry orientation are non-negotiable
• Termination Method: Screw-based termination ensures compatibility with existing wiring practices
• Mounting Form Factor: Free-hanging inline mounting must be preserved
• Material & Compliance: UL94 V-0 flammability rating and RoHS compliance required for regulatory continuity
• Contact Interface: Female socket configuration for plug mating

The Phoenix Contact 1863181 satisfies all substitution criteria while offering active product status and enhanced wire gauge compatibility.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1863181 is the direct active equivalent for the obsolete 5449021. Selection is based on:

• Product Status Alignment: The 1863181 carries active status, ensuring long-term availability and supply chain continuity
• Electrical Equivalence: Identical current (8A) and voltage (320V IEC, 300V UL) ratings maintain system performance specifications
• Physical & Mechanical Compatibility: Matching pitch (4.60mm), wire entry angle (90°), position count (5), and mounting form factor (free-hanging inline) ensure direct mechanical fit
• Regulatory Compliance: Both parts meet UL94 V-0 flammability requirements and RoHS standards (ROHS3 for the substitute represents current compliance evolution)
• Termination Enhancement: The rising cage clamp termination in the 1863181 provides improved wire retention while maintaining M2 screw specifications and identical torque values
• Wire Gauge Compatibility: The substitute accepts the full original range (14-30 AWG) with extended lower-gauge capability (0.14mm² vs. 0.2mm²), offering greater application flexibility

Frequently Asked Questions (FAQ)

Q: Can the 1863181 directly replace the 5449021 in existing installations?

A: Yes. Both parts share identical electrical ratings (8A, 320V IEC), pitch (4.60mm), position count (5), wire entry angle (90°), and mounting configuration (free-hanging inline). The M2 screw torque specification (0.22-0.25 Nm) is identical, ensuring compatibility with existing assembly procedures.

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

A: The 1863181 uses rising cage clamp technology, which provides spring-loaded wire retention during screw tightening. This improves contact reliability and reduces the risk of wire displacement. Both termination methods operate at identical torque specifications and are compatible with the same wire gauge ranges.

Q: Are there packaging differences between these parts?

A: The 5449021 is listed with unspecified packaging, while the 1863181 is supplied in bulk packaging. This distinction affects procurement and handling but does not impact electrical or mechanical performance.

Q: Does the extended wire gauge capability of the 1863181 (0.14mm² minimum vs. 0.2mm²) affect compatibility?

A: No. The extended lower-gauge capability represents an enhancement that maintains full backward compatibility. The 1863181 accepts all wire gauges supported by the original part and extends the range to smaller gauges, providing greater application flexibility without compromising existing designs.

Q: What is the significance of ROHS3 compliance on the 1863181?

A: ROHS3 represents the current evolution of RoHS standards. The 1863181's ROHS3 compliance ensures alignment with current regulatory requirements while maintaining full compatibility with systems designed for RoHS-compliant components.

Q: Are there any operational differences in temperature or environmental performance?

A: Operating temperature specifications are not provided for either part in the available data. Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity limitations for storage or handling.