Phoenix Contact 5451271 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 5451271 is a 10-position terminal block plug with female sockets, 0.200" (5.08mm) pitch, designed for 90° free-hanging in-line applications. This component features screw termination, rated for 12A at 630V (IEC) and 12A at 300V (UL), and accommodates wire gauges from 12-30 AWG (0.2-2.5mm²). The part is currently obsolete, making substitute components necessary for ongoing maintenance and new designs requiring equivalent functionality.

Substiute Parts

5451271

Phoenix ContactIn Stock: 12325451271 Datasheet

Current PartRFQ

1835177

Phoenix ContactIn Stock: 11101835177 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Phoenix Contact 5451271 is based on strict electrical and mechanical compatibility criteria. The substitute part must maintain:

• Identical number of positions (10)
• Identical pitch spacing (0.200" / 5.08mm)
• Identical connector type (Plug, Female Sockets)
• Identical wire entry angle (90°)
• Identical mounting configuration (Free Hanging In-Line)
• Compatible current and voltage ratings (minimum 12A IEC, 630V IEC)
• Compatible wire gauge acceptance (12-30 AWG / 0.2-2.5mm²)
• Identical screw size (M3)
• Equivalent housing material and flammability rating

The Phoenix Contact 1835177 meets all these criteria as a direct functional equivalent, with enhanced UL current rating (15A vs. 12A) and active product status.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1835177 is a direct substitute for the obsolete 5451271. Both components share identical mechanical and electrical specifications for IEC ratings, wire gauge compatibility, and physical dimensions. The 1835177 offers the following advantages:

• Active product status ensures ongoing availability and supply chain continuity
• Enhanced UL current rating (15A vs. 12A) provides additional margin for UL-compliant applications
• Rising cage clamp termination technology improves wire retention reliability compared to standard screw termination
• ROHS3 compliance supersedes the RoHS compliance of the original part
• REACH unaffected status provides additional regulatory clarity

The 1835177 maintains full backward compatibility with applications designed for the 5451271, with no modifications to connector interfaces, mounting, or electrical performance required.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1835177 directly replace the 5451271 in existing installations?

A: Yes. Both components feature identical 10-position, 5.08mm pitch configurations, 90° wire entry, free-hanging mounting, M3 screw termination, and wire gauge acceptance (12-30 AWG). No mechanical or electrical modifications are required.

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

A: The 5451271 uses standard screw termination. The 1835177 uses rising cage clamp technology, which provides enhanced wire retention and simplified insertion procedures while maintaining identical screw torque specifications (0.5-0.6 Nm).

Q: Are the current and voltage ratings compatible?

A: Yes. Both parts meet IEC ratings of 12A at 630V. The 1835177 provides an enhanced UL rating of 15A (compared to 12A on the 5451271), while maintaining identical 300V UL voltage rating. This makes the 1835177 suitable for all applications rated for the original part.

Q: What is the packaging difference between these parts?

A: The 5451271 was supplied with unspecified packaging. The 1835177 is supplied in bulk packaging, which is standard for active production components.

Q: Are both parts RoHS compliant?

A: Yes. The 5451271 is RoHS compliant. The 1835177 is ROHS3 compliant, which represents the current regulatory standard and supersedes earlier RoHS requirements.