Phoenix Contact 5438977 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 5438977 is a 2-position terminal block plug with female sockets, 0.200" (5.08mm) pitch, designed for 90° free-hanging in-line mounting. This component features screw termination, rated for 12A at 630V (IEC) and 300V (UL), and accommodates wire gauges from 12-30 AWG (0.2-2.5mm²). The part is currently obsolete, making identification of functionally equivalent alternatives essential for system maintenance and new designs requiring compatible connectivity solutions.

Substiute Parts

5438977

Phoenix ContactIn Stock: 9735438977 Datasheet

Current PartRFQ

1716009

Phoenix ContactIn Stock: 11051716009 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 5438977 is determined by strict alignment of the following critical parameters:

• Position count and pitch: Must be 2 positions at 0.200" (5.08mm) spacing to ensure mechanical and electrical compatibility with mating connectors
• Connector type and orientation: Must be a plug with female sockets and 90° wire entry to match existing in-line mounting configurations
• Electrical ratings: Current and voltage ratings must meet or exceed the application requirements (minimum 12A, 630V IEC or 300V UL)
• Termination method: Screw-based termination ensures compatibility with existing wiring practices and installation procedures
• Wire gauge accommodation: Must support the same or broader wire gauge range (12-30 AWG minimum)
• Mechanical form factor: Free-hanging in-line mounting and M3 screw specifications must be preserved

The Phoenix Contact 1716009 qualifies as a substitute based on these parameters, despite differences in termination mechanism (rising cage clamp vs. standard screw) and voltage rating variance.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1716009 is suitable as a substitute for the obsolete 5438977 in applications where the following conditions are met:

• Voltage requirement does not exceed 320V (IEC): The 1716009 has a reduced IEC voltage rating (320V vs. 630V). Applications operating at or below 320V IEC are compatible; higher-voltage systems require alternative solutions.
• UL voltage requirement is 300V or less: Both parts meet this specification identically.
• Current requirement does not exceed 12A (IEC): The 1716009 provides 15A UL rating, exceeding the original 12A specification.
• Rising cage clamp termination is acceptable: The 1716009 uses a rising cage clamp mechanism instead of standard screw termination. This provides equivalent electrical connection but may require different installation procedures.
• Wire gauge requirement is 2.5mm² or smaller: The 1716009 specifies 2.5mm² maximum, whereas the original supports 0.2-2.5mm². Applications using smaller gauges are fully compatible.
• Active product availability is required: The 1716009 is currently active in production with 1050 units in stock, ensuring supply continuity compared to the obsolete 5438977.

Both parts carry identical RoHS compliance, UL94 V-0 flammability rating, and MSL 1 moisture sensitivity classification, confirming regulatory and environmental compatibility.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1716009 directly replace the 5438977 in all applications?

A: Direct replacement is possible only when the application voltage does not exceed 320V (IEC). The 1716009 has a lower IEC voltage rating (320V vs. 630V). If your system operates above 320V IEC, the 1716009 is not suitable. UL-rated applications at 300V or below are fully compatible.

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

A: Both methods provide secure electrical connection. Screw termination (5438977) requires manual screw tightening to secure the wire. Rising cage clamp termination (1716009) uses a spring-loaded mechanism that automatically secures the wire when inserted. Installation procedures differ, but electrical performance is equivalent.

Q: Does the 1716009 support the same wire gauge range as the 5438977?

A: The 1716009 specifies 2.5mm² maximum wire gauge, while the 5438977 supports 0.2-2.5mm². For applications using wires smaller than 2.5mm², both parts are compatible. Applications requiring smaller gauge wires (0.2-2.4mm²) can use either part without restriction.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are RoHS compliant, carry UL94 V-0 flammability rating, and have MSL 1 moisture sensitivity classification. Regulatory and environmental compliance is identical.

Q: What is the current rating difference, and does it affect compatibility?

A: The 1716009 provides 15A (UL) compared to the 5438977's 12A (UL). For IEC ratings, both are 12A. If your application requires 12A or less, the 1716009 is fully compatible and provides additional current capacity margin.

Q: Is the 1716009 available in stock?

A: Yes. The 1716009 has 1050 units in stock as new original inventory, ensuring immediate availability. The 5438977 is obsolete with no new production.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical insulation height (1.024" / 26.01mm), M3 screw size, and free-hanging in-line mounting form factor. Mechanical fit and installation space requirements are identical.