Phoenix Contact 1749243 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1749243 is a 6-position terminal block plug with male pins, 0.300" (7.62mm) pitch, designed for 180° free-hanging in-line applications. This component features screwless push-in spring termination and supports wire gauges from 8-24 AWG (0.2-10mm²). The part is classified as obsolete, making identification of active equivalent components essential for ongoing system maintenance and new design implementations.

Substiute Parts

1749243

Phoenix ContactIn Stock: 11641749243 Datasheet

Current PartRFQ

1748901

Phoenix ContactIn Stock: 9131748901 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of terminal block plugs is determined by strict equivalence across electrical and mechanical parameters. The Phoenix Contact 1748901 qualifies as a direct substitute for the 1749243 based on the following criteria:

Critical Matching Parameters:

• Identical position count (6 positions)
• Identical pitch specification (0.300" / 7.62mm)
• Identical connector type (Plug, Male Pins)
• Identical mounting configuration (Free Hanging, In-Line)
• Identical termination method (Screwless - Push-In Spring)
• Identical wire gauge compatibility (8-24 AWG / 0.2-10mm²)
• Identical electrical ratings (41A IEC / 35A UL; 1kV IEC / 600V UL)
• Identical housing material (Polyamide/Nylon)
• Identical flammability rating (UL94 V-0)
• Identical RoHS compliance status

The primary distinction between these parts is product status: the 1749243 is obsolete, while the 1748901 is active. Both components belong to the COMBICON ISPC series and maintain full functional and dimensional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1748901 is the direct active equivalent for the obsolete 1749243 terminal block plug. Selection of the 1748901 is supported by:

• Full electrical parameter equivalence across both IEC and UL standards
• Identical mechanical and dimensional specifications
• Maintained RoHS compliance certification
• Active product status ensuring ongoing availability and supply chain continuity
• Identical flammability rating (UL94 V-0) for safety-critical applications
• Same series designation (COMBICON ISPC) confirming design compatibility

No functional or performance degradation occurs when transitioning from the 1749243 to the 1748901. Both components are suitable for identical applications within the specified electrical and environmental parameters.

Frequently Asked Questions (FAQ)

Q: Can the 1748901 be used as a direct replacement for the 1749243?

A: Yes. The 1748901 is a direct substitute. All electrical ratings, mechanical dimensions, termination methods, and material specifications are identical. The primary difference is product status: 1749243 is obsolete while 1748901 is active.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both parts share identical pitch (7.62mm), position count (6), wire gauge range (8-24 AWG), and mounting configuration (free-hanging in-line). Mating connectors and PCB layouts designed for the 1749243 will function identically with the 1748901.

Q: What is the significance of the different features listed (Mating Flange vs. Locking Ramp)?

A: The features listed represent design enhancements in the active 1748901 variant. The locking ramp feature provides improved mechanical retention. This enhancement does not affect electrical performance or basic dimensional compatibility. Both parts maintain the same pitch, position count, and electrical ratings.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1749243 and 1748901 are RoHS compliant, meeting environmental and regulatory requirements for electronic component manufacturing.

Q: What wire gauges are supported by these terminal blocks?

A: Both parts support wire gauges from 8-24 AWG, equivalent to 0.2-10mm² cross-sectional area. This range accommodates standard industrial wiring applications.

Q: What is the current and voltage rating for these components?

A: IEC ratings are 41A at 1kV. UL ratings are 35A at 600V. Both the 1749243 and 1748901 maintain identical electrical specifications across both standards.