Phoenix Contact 3050303 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 3050303 is a feed-through terminal block connector designed for 3-position applications with wire gauge compatibility of 10-26 AWG (0.5-2.5 mm²). This component operates at 24 A (IEC) / 15 A (UL) and 800 V (IEC) / 600 V (UL), utilizing both IDC and screw termination styles. The part carries Last Time Buy status, indicating discontinued production. Identifying qualified substitute components is necessary to ensure continued availability and system compatibility for new designs and maintenance applications.

Key Parameters

Parameter	Value
Manufacturer	Phoenix Contact
Category	Terminal Blocks
Type	Feed Through
Number of Positions	3
Number of Levels	1
Terminal Width	6.2 mm
Wire Gauge Range (AWG)	10-26 AWG
Wire Gauge Range (mm²)	0.5-2.5 mm²
Current Rating (IEC)	24 A
Voltage Rating (IEC)	800 V
Current Rating (UL)	15 A
Voltage Rating (UL)	600 V
Termination Style	IDC, Screw
Color	Gray
Material - Insulation	Polyamide (PA), Nylon
Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 3050303 is determined by the following critical parameters:

Mandatory Matching Criteria:

Number of positions: 3
Number of levels: 1
Terminal width: 6.2 mm
Current rating (IEC): 24 A minimum
Voltage rating (IEC): 800 V minimum
Current rating (UL): 15 A minimum
Voltage rating (UL): 600 V minimum
Material insulation: Polyamide (PA), Nylon
Flammability rating: UL94 V-0
Color: Gray
Feed-through type configuration

Allowable Variation:

Wire gauge range: Subset of 10-26 AWG is acceptable if the application wire gauge falls within the substitute's supported range
Termination style: IDC-only substitutes are acceptable for applications not requiring screw termination
Series designation: Different series permitted if all electrical and mechanical parameters align

The Phoenix Contact 3206445 qualifies as a substitute based on these criteria, with the primary difference being a narrower wire gauge range (14-20 AWG versus 10-26 AWG) and IDC-only termination.

Parameter Comparison

Parameter	3050303 (Main Part)	3206445 (Substitute)
Manufacturer	Phoenix Contact	Phoenix Contact
Category	Terminal Blocks	Terminal Blocks
Type	Feed Through	Feed Through
Number of Positions	3	3
Number of Levels	1	1
Terminal Width	6.2 mm	6.2 mm
Wire Gauge Range (AWG)	10-26 AWG	14-20 AWG
Wire Gauge Range (mm²)	0.5-2.5 mm²	0.5-2.5 mm²
Current Rating (IEC)	24 A	24 A
Voltage Rating (IEC)	800 V	800 V
Current Rating (UL)	15 A	15 A
Voltage Rating (UL)	600 V	600 V
Termination Style	IDC, Screw	IDC
Color	Gray	Gray
Material - Insulation	Polyamide (PA), Nylon	Polyamide (PA), Nylon
Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
Product Status	Last Time Buy	Active
Series	CLIPLINE QTCU	CLIPLINE QTC

Engineering Selection Recommendations

The Phoenix Contact 3206445 is an active production substitute for the discontinued 3050303. Both components maintain identical electrical performance (24 A IEC / 15 A UL, 800 V IEC / 600 V UL) and mechanical compatibility (3-position, 6.2 mm terminal width, gray polyamide insulation, UL94 V-0 rating).

Selection Criteria:

Wire Gauge Compatibility: The 3206445 supports 14-20 AWG, which is a subset of the 3050303's 10-26 AWG range. Selection of the 3206445 is appropriate only when application wire gauges fall within 14-20 AWG. Applications requiring 10-12 AWG or 22-26 AWG wire compatibility cannot use the 3206445.
Termination Method: The 3050303 offers both IDC and screw termination options, while the 3206445 provides IDC termination only. Applications requiring screw termination cannot use the 3206445 as a direct substitute.
Compliance Status: The 3206445 carries ROHS3 Compliant status versus RoHS Compliant for the 3050303, representing an updated compliance designation. Both components meet current regulatory requirements.
Availability: The 3206445 is in active production status, ensuring long-term availability and supply chain continuity compared to the Last Time Buy status of the 3050303.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 3206445 replace the 3050303 in all applications?

A: No. The 3206445 is a qualified substitute only when both conditions are met: (1) application wire gauge falls within 14-20 AWG, and (2) IDC termination is acceptable. Applications requiring screw termination or wire gauges outside 14-20 AWG require alternative solutions.

Q: What is the primary difference between these two terminal blocks?

A: The 3050303 supports a broader wire gauge range (10-26 AWG) and dual termination methods (IDC and screw), while the 3206445 is limited to 14-20 AWG wire gauge and IDC termination only. Electrical ratings and mechanical dimensions are identical.

Q: Are the electrical ratings identical between the two parts?

A: Yes. Both components are rated for 24 A (IEC) / 15 A (UL) and 800 V (IEC) / 600 V (UL). Current and voltage performance is equivalent.

Q: Why is the 3050303 marked as Last Time Buy?

A: Last Time Buy status indicates Phoenix Contact has discontinued production of this model. The 3206445 represents the active production alternative within the CLIPLINE terminal block family.

Q: Are there any mechanical compatibility concerns with substitution?

A: No. Both components share identical terminal width (6.2 mm), position count (3), level count (1), and insulation material (polyamide/nylon). Physical mounting and connection interfaces are compatible.

Q: What compliance certifications apply to both parts?

A: Both components are RoHS compliant (3050303: RoHS Compliant; 3206445: ROHS3 Compliant), UL94 V-0 flammability rated, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Both are classified under ECCN EAR99 and HTSUS 8536.69.8000.

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