Phoenix Contact 3003758 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 3003758 is a 2-position feed-through terminal block connector designed for wire gauges 14-26 AWG with push-in spring termination. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The CLIPLINE MZFK series connector provides 24 A current capacity (IEC) and 800 V voltage rating with polyamide insulation rated UL94 V-0.

Substiute Parts

3003758

Phoenix ContactIn Stock: 7933003758 Datasheet

Current PartRFQ

3211799

Phoenix ContactIn Stock: 10513211799 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 3003758 is determined by the following critical parameters:

• Connector Type & Configuration: 2-position feed-through terminal block with push-in spring termination
• Electrical Performance: Current capacity (IEC/UL), voltage rating (IEC/UL)
• Wire Gauge Compatibility: Acceptable AWG and mm² ranges must accommodate the original specification
• Terminal Geometry: Terminal width of 5.2 mm ensures mechanical compatibility
• Material & Compliance: Polyamide insulation with UL94 V-0 rating and RoHS compliance

The substitute part Phoenix Contact 3211799 maintains compatibility across these critical parameters while offering enhanced wire gauge range and active product status.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 3211799 is a direct substitute for the obsolete 3003758 based on the following engineering criteria:

Electrical Equivalence: Both parts maintain identical IEC ratings (24 A, 800 V) and equivalent UL ratings (15 A vs. 20 A, 600 V). The substitute's higher UL current rating provides additional margin without compromising the original design intent.

Mechanical Compatibility: Identical 2-position configuration, 5.2 mm terminal width, and push-in spring termination ensure drop-in replacement capability in existing PCB layouts and connector housings.

Wire Gauge Accommodation: The substitute's expanded wire gauge range (12-26 AWG vs. 14-26 AWG) encompasses the original specification while supporting additional conductor sizes. This expanded range does not compromise compatibility with the original 14-26 AWG requirement.

Compliance & Manufacturing Status: The 3211799 is an active product with ROHS3 compliance, ensuring long-term availability and current manufacturing standards. The original 3003758 is obsolete, making the substitute the appropriate choice for new procurements and system maintenance.

Material & Flammability: Both parts utilize identical polyamide insulation with UL94 V-0 flammability rating, maintaining fire safety performance across applications.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 3211799 replace the 3003758 in existing designs?

A: Yes. The 3211799 maintains identical electrical ratings (IEC), mechanical configuration, terminal geometry, and material specifications. The substitute is a direct replacement suitable for existing applications without design modification.

Q: What is the difference in wire gauge range between these parts?

A: The 3003758 accepts 14-26 AWG (0.14-2.5 mm²), while the 3211799 accepts 12-26 AWG (0.14-4 mm²). The substitute supports a wider range that fully encompasses the original specification. Existing wiring using 14-26 AWG remains fully compatible.

Q: Why does the 3211799 have a higher UL current rating (20 A vs. 15 A)?

A: The substitute's 20 A UL rating reflects current manufacturing and testing standards. This higher rating does not affect compatibility; it provides additional safety margin for applications operating at or below the original 15 A specification.

Q: Is the 3211799 available in the same packaging as the 3003758?

A: The 3211799 is supplied in bulk packaging, whereas the 3003758 packaging specification was not provided. Confirm packaging requirements with your procurement department for volume orders.

Q: Are there any compliance differences between these parts?

A: The 3003758 is RoHS Compliant, while the 3211799 is ROHS3 Compliant. ROHS3 represents the current regulatory standard and is fully backward compatible with RoHS requirements. Both parts maintain UL94 V-0 flammability rating and MSL 1 (Unlimited) moisture sensitivity.

Q: What is the stripping length difference?

A: The 3003758 specifies 9 mm stripping length, while the 3211799 specifies 10 mm. This 1 mm difference accommodates the substitute's expanded wire gauge range and does not affect compatibility with standard wire preparation practices.

Q: Why is the 3003758 obsolete?

A: The 3003758 belongs to the CLIPLINE MZFK series, which has been superseded by the active CLIPLINE PTS series (represented by the 3211799). Phoenix Contact has transitioned manufacturing to the newer series while maintaining electrical and mechanical compatibility.