Phoenix Contact 3003790 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 3003790 is a 2-position terminal block from the CLIPLINE MZB series, designed for direct mount applications with 5.2mm terminal width and push-in spring termination. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations. The part operates at IEC ratings of 17.5 A and 800 V, with UL ratings of 15 A and 600 V, accommodating wire gauges from 14-26 AWG (0.14-2.5mm²).

Substiute Parts

3003790

Phoenix ContactIn Stock: 7813003790 Datasheet

Current PartRFQ

3244070

Phoenix ContactIn Stock: 13133244070 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the Phoenix Contact 3003790 is determined by the following critical parameters:

• Mechanical compatibility: 2-position configuration, 5.2mm terminal width, direct mount type, and middle position designation
• Electrical compatibility: Operating voltage of 800 V (IEC) and 600 V (UL), with current ratings meeting or exceeding the original 17.5 A (IEC) and 15 A (UL)
• Termination interface: Spring-based connection technology compatible with the original push-in spring design
• Wire accommodation: Wire gauge range that encompasses or exceeds the original 14-26 AWG specification
• Environmental compliance: RoHS and REACH compliance status, UL94 V-0 flammability rating, and polyamide insulation material

The Phoenix Contact 3244070 qualifies as a direct substitute based on these parameters. While it represents a different series (CLIPLINE MSB) and employs spring cage termination rather than push-in spring, it maintains identical mechanical dimensions, equivalent voltage ratings, superior current capacity, and expanded wire gauge accommodation.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 3244070 is suitable for applications currently specified with the 3003790. The substitute part maintains identical mechanical form factor and voltage specifications while providing increased current capacity (24 A IEC / 20 A UL versus 17.5 A IEC / 15 A UL) and expanded wire gauge accommodation (12-28 AWG versus 14-26 AWG). Both components meet UL94 V-0 flammability requirements and maintain polyamide insulation material specifications.

The 3244070 carries ROHS3 compliance status, representing current regulatory alignment, whereas the original 3003790 holds RoHS Compliant status. Both parts maintain REACH Unaffected designation. The substitute's Last Time Buy status indicates limited future availability, necessitating timely procurement decisions for long-term supply chain planning.

The primary design consideration involves termination methodology: the original employs push-in spring termination, while the substitute utilizes spring cage technology. Both employ spring-based connection principles and accommodate the same wire gauge ranges within their respective specifications, ensuring functional compatibility in direct mount applications.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 3244070 directly replace the 3003790 in existing assemblies?

A: Yes. Both components share identical mechanical dimensions (32.00mm length, 22.00mm maximum height), 5.2mm terminal width, 2-position configuration, and direct mount type. Voltage ratings are equivalent at 800 V (IEC) and 600 V (UL). The 3244070 provides superior current capacity and expanded wire gauge range, making it functionally compatible for the original application.

Q: What is the difference between push-in spring and spring cage termination?

A: Both termination methods employ spring-based connection technology. Push-in spring (3003790) and spring cage (3244070) represent different mechanical implementations of spring-loaded wire retention. Both are suitable for direct mount terminal block applications and accommodate comparable wire gauges within their specified ranges.

Q: Are there wire gauge compatibility considerations when substituting?

A: The 3244070 accommodates a broader wire gauge range (12-28 AWG / 0.08-4mm²) compared to the original 3003790 (14-26 AWG / 0.14-2.5mm²). Applications using wire gauges within the original specification remain fully compatible. Applications requiring wire gauges outside the original range (12-13 AWG or 27-28 AWG) benefit from the expanded accommodation of the substitute.

Q: What is the significance of the product status change from Obsolete to Last Time Buy?

A: The 3003790 is classified as obsolete, indicating discontinued production and limited availability. The 3244070 carries Last Time Buy status, signifying a defined final production window before discontinuation. For applications requiring long-term component availability, procurement planning should account for the limited supply window of the substitute part.

Q: Do both parts meet current regulatory compliance requirements?

A: Both components maintain REACH Unaffected status and UL94 V-0 flammability ratings. The 3244070 carries ROHS3 Compliant designation, representing alignment with current regulatory standards, while the 3003790 holds RoHS Compliant status. Both are suitable for applications requiring these compliance certifications.

Q: What current rating should be used for circuit design when substituting?

A: Design specifications should reference the lower of the two ratings to ensure conservative operation. The 3003790 is rated at 17.5 A (IEC) and 15 A (UL). The 3244070 is rated at 24 A (IEC) and 20 A (UL). For applications originally designed to the 3003790 specifications, the substitute's higher ratings provide additional design margin without requiring circuit modification.