Phoenix Contact 5437787 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 5437787 is a 5-position terminal block plug with female sockets, 0.150" (3.81mm) pitch, designed for 90° free-hanging in-line applications. This component features screw termination, rated for 8A at 320V (IEC) and 300V (UL), and accommodates wire gauges from 14-30 AWG (0.2-1.5mm²). The part is currently obsolete, making identification of compatible substitutes essential for ongoing system maintenance and new designs requiring equivalent functionality.

Key Parameters

Parameter	Value
Number of Positions	5
Pitch	0.150" (3.81mm)
Plug Wire Entry	90°
Mounting Type	Free Hanging (In-Line)
Current Rating (IEC)	8A
Voltage Rating (IEC)	320V
Wire Gauge Range	14-30 AWG (0.2-1.5mm²)
Termination Style	Screw
Insulation Height	0.752" (19.10mm)
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 5437787 is determined by strict alignment of the following critical parameters:

Position count and pitch: Must be 5 positions at 0.150" (3.81mm) spacing to ensure mechanical and electrical compatibility with mating connectors
Plug configuration: Must be female socket type with 90° wire entry for in-line free-hanging mounting
Electrical ratings: Current and voltage ratings must meet or exceed the original specification (minimum 8A, 320V IEC)
Wire gauge compatibility: Must accommodate 14-30 AWG (0.2-1.5mm²) wire sizes
Termination method: Screw-based termination systems, including rising cage clamp variants, are functionally equivalent
Compliance: RoHS compliance status must be maintained

The Phoenix Contact 1708700 qualifies as a substitute based on these parameters.

Parameter Comparison

Parameter	5437787 (Main Part)	1708700 (Substitute)	Compatibility
Manufacturer	Phoenix Contact	Phoenix Contact	Same
Number of Positions	5	5	Match
Pitch	0.150" (3.81mm)	0.150" (3.81mm)	Match
Type	Plug, Female Sockets	Plug, Female Sockets	Match
Plug Wire Entry	90°	90°	Match
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Match
Current - IEC	8A	8A	Match
Voltage - IEC	320V	160V	Substitute rated lower; acceptable for applications ≤160V IEC
Current - UL	8A	8A	Match
Voltage - UL	300V	300V	Match
Wire Gauge - AWG	14-30 AWG	14-30 AWG	Match
Wire Gauge - mm²	0.2-1.5mm²	0.14-1.5mm²	Substitute supports extended lower range
Color	Gray	Gray	Match
Termination Style	Screw	Screw - Rising Cage Clamp	Functionally equivalent
Insulation Height	0.752" (19.10mm)	0.752" (19.10mm)	Match
RoHS Status	RoHS Compliant	RoHS Compliant	Match
Product Status	Obsolete	Active	Substitute is currently manufactured

Engineering Selection Recommendations

The Phoenix Contact 1708700 is a direct substitute for the obsolete 5437787 in applications operating at or below 160V IEC. Both components maintain RoHS compliance and are manufactured by Phoenix Contact, ensuring consistent quality and reliability standards.

For applications requiring the full 320V IEC rating of the original part, the voltage differential must be evaluated against system requirements. The 1708700 meets UL voltage specifications (300V) identically to the original, making it suitable for North American applications within those parameters.

The rising cage clamp termination in the 1708700 provides equivalent screw-based connection reliability while offering improved wire retention characteristics. Both components support identical wire gauge ranges and current ratings, ensuring electrical performance parity in compatible voltage applications.

Frequently Asked Questions (FAQ)

Q: Can the 1708700 directly replace the 5437787 in all applications?

A: The 1708700 is a direct mechanical and electrical substitute for applications operating at 160V IEC or below. If your system operates above 160V IEC but within 300V UL specifications, the 1708700 remains compatible. Verify your system voltage rating against the substitute's IEC specification before implementation.

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

A: Both are screw-based termination methods. The rising cage clamp variant in the 1708700 provides enhanced wire retention through a spring-loaded mechanism that rises as the screw is tightened, improving contact pressure and reducing the risk of wire displacement. Functionally, both achieve equivalent electrical connections.

Q: Are the wire gauge ranges compatible between these parts?

A: Yes. Both components accept 14-30 AWG wire. The 1708700 additionally supports 0.14mm² wire, extending the lower range slightly. Standard applications using 0.2-1.5mm² wire are fully compatible with both parts.

Q: Does the packaging difference affect compatibility?

A: No. The 5437787 was supplied in standard packaging, while the 1708700 is available in bulk packaging. The component itself is identical; packaging affects only logistics and inventory management, not electrical or mechanical performance.

Q: Is the 1708700 currently available?

A: Yes. The 1708700 is listed as active product status with 781 pieces in stock, making it readily available for new designs and replacement applications where the obsolete 5437787 is no longer obtainable.

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