Phoenix Contact 1946451 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1946451 is an 11-position terminal block plug with female sockets, 0.197" (5.00mm) pitch, designed for 180° free-hanging in-line applications. This component features screw-type rising cage clamp termination and is rated for 12A at 320V (IEC) and 10A at 300V (UL). The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system maintenance and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	1946451
Manufacturer	Phoenix Contact
Series	COMBICON MSTB
Category	Terminal Blocks
Type	Plug, Female Sockets
Number of Positions	11
Pitch	0.197" (5.00mm)
Plug Wire Entry	180°
Mounting Type	Free Hanging (In-Line)
Termination Style	Screw - Rising Cage Clamp
Current Rating (IEC)	12A
Voltage Rating (IEC)	320V
Wire Gauge Range	12-30 AWG (0.2-2.5mm²)
Screw Size	M3
Material Flammability Rating	UL94 V-0
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 1946451 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility: Current and voltage ratings must meet or exceed the original specification (12A IEC, 320V IEC minimum)
Physical Compatibility: 11 positions, 0.197" (5.00mm) pitch, 180° wire entry orientation, and free-hanging in-line mounting must be maintained
Termination Compatibility: Screw-type rising cage clamp termination style must be preserved
Wire Gauge Compatibility: Support for 12-30 AWG (0.2-2.5mm²) wire range must be maintained
Mechanical Specifications: M3 screw size and matching torque specifications (0.5-0.6 Nm) must be consistent

The Phoenix Contact 1786925 meets all substitution criteria as an active product within the same COMBICON MSTB series, offering enhanced electrical ratings and current product status.

Parameter Comparison

Parameter	1946451 (Main Part)	1786925 (Substitute)	Compatibility
Manufacturer	Phoenix Contact	Phoenix Contact	Identical
Series	COMBICON MSTB	COMBICON MSTB	Identical
Type	Plug, Female Sockets	Plug, Female Sockets	Identical
Number of Positions	11	11	Identical
Pitch	0.197" (5.00mm)	0.197" (5.00mm)	Identical
Plug Wire Entry	180°	180°	Identical
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Identical
Termination Style	Screw - Rising Cage Clamp	Screw - Rising Cage Clamp	Identical
Current Rating (IEC)	12A	12A	Identical
Voltage Rating (IEC)	320V	630V	Substitute exceeds specification
Current Rating (UL)	10A	15A	Substitute exceeds specification
Voltage Rating (UL)	300V	300V	Identical
Wire Gauge Range	12-30 AWG (0.2-2.5mm²)	12-30 AWG (0.2-2.5mm²)	Identical
Color	Green	Green	Identical
Contact Mating Finish	Tin	Tin	Identical
Material Flammability Rating	UL94 V-0	UL94 V-0	Identical
Screw Size	M3	M3	Identical
Torque Specification	0.5-0.6 Nm (4.4-5.3 Lb-In)	0.5-0.6 Nm (4.4-5.3 Lb-In)	Identical
Insulation Height	0.591" (15.00mm)	0.591" (15.00mm)	Identical
Wire Strip Length	7mm	7mm	Identical
Product Status	Obsolete	Active	Substitute is current production
RoHS Status	Not specified	RoHS Compliant	Substitute meets RoHS requirements

Engineering Selection Recommendations

The Phoenix Contact 1786925 is the direct functional equivalent for the obsolete 1946451 terminal block. Both components share identical mechanical and electrical specifications across all critical parameters, including pitch, position count, wire entry orientation, termination method, and wire gauge compatibility.

The 1786925 provides additional advantages: it maintains active product status within the COMBICON MSTB series, offers enhanced electrical ratings (630V IEC, 15A UL versus 320V IEC, 10A UL), and carries RoHS compliance certification. The substitute component is suitable for direct replacement in applications requiring the 1946451 specification.

Both components are manufactured by Phoenix Contact and utilize identical M3 screw termination with matching torque specifications (0.5-0.6 Nm). The housing material composition (Polyamide/Nylon) and UL94 V-0 flammability rating ensure consistent performance in equivalent operating environments.

Frequently Asked Questions (FAQ)

Q: Can the 1786925 directly replace the 1946451 in existing installations?

A: Yes. The 1786925 is mechanically and electrically compatible with the 1946451. Both components feature identical 11-position, 5.00mm pitch configuration, 180° wire entry, free-hanging mounting, and M3 screw termination. The substitute meets or exceeds all electrical ratings of the original part.

Q: What are the key differences between these two parts?

A: The primary differences are product status and electrical ratings. The 1946451 is obsolete, while the 1786925 is active production. The 1786925 provides higher voltage rating (630V IEC versus 320V IEC) and higher UL current rating (15A versus 10A). The 1786925 also carries RoHS compliance certification.

Q: Are the wire gauge specifications identical?

A: Yes. Both the 1946451 and 1786925 accept wire gauges of 12-30 AWG (0.2-2.5mm²) and require identical 7mm wire strip length for proper termination.

Q: Do these components use the same screw size and torque specifications?

A: Yes. Both components use M3 screws with identical torque specifications of 0.5-0.6 Nm (4.4-5.3 Lb-In). Installation procedures and tooling requirements are equivalent.

Q: Is the 1786925 available in the same packaging as the 1946451?

A: The 1946451 was supplied in standard packaging, while the 1786925 is available in bulk packaging. Both are in current or recent inventory stock.

Q: What is the significance of the RoHS compliance on the 1786925?

A: RoHS compliance indicates the 1786925 meets Restriction of Hazardous Substances requirements, restricting lead, cadmium, mercury, and other hazardous materials. This is relevant for applications subject to environmental regulations or customer specifications requiring RoHS-compliant components.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message