Phoenix Contact 1749256 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1749256 is a 7-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 models essential for procurement and design continuity.

Substiute Parts

1749256

Phoenix ContactIn Stock: 11291749256 Datasheet

Current PartRFQ

1748914

Phoenix ContactIn Stock: 10641748914 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 1749256 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• Number of positions: 7
• Pitch: 0.300" (7.62mm)
• Current rating (IEC): 41A
• Voltage rating (IEC): 1 kV
• Current rating (UL): 35 A
• Voltage rating (UL): 600 V
• Wire gauge range: 8-24 AWG (0.2-10mm²)

Mechanical Compatibility:

• Type: Plug, Male Pins
• Plug wire entry: 180°
• Termination style: Screwless - Push-In Spring
• Mounting type: Free Hanging (In-Line)
• Housing material: Polyamide (PA), Nylon
• Insulation height: 0.780" (19.80mm)

Regulatory & Environmental:

• Material flammability rating: UL94 V-0
• RoHS compliance: Required
• Moisture sensitivity level: 1 (Unlimited)

The substitute part 1748914 maintains full equivalence across all critical parameters while offering active product status and improved feature set (locking ramp vs. mating flange).

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1748914 is a direct functional equivalent to the obsolete 1749256. Both components are manufactured by Phoenix Contact within the COMBICON ISPC series and maintain identical electrical ratings, mechanical dimensions, and regulatory compliance.

Selection Basis:

The 1748914 is recommended for new designs and procurement due to active product status. Both parts satisfy IEC and UL electrical requirements (41A IEC / 35A UL, 1 kV IEC / 600V UL) and maintain UL94 V-0 flammability certification. RoHS compliance is confirmed for both variants.

The primary distinction is the feature set: the 1749256 includes a mating flange, while the 1748914 incorporates a locking ramp. This difference does not affect electrical or mechanical compatibility in applications where either feature is acceptable. The 1748914 is available in bulk packaging, supporting production-scale procurement.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1748914 directly replace the 1749256 in existing applications?

A: Yes. Both components are electrically and mechanically equivalent across all critical parameters: 7 positions, 0.300" (7.62mm) pitch, 41A IEC / 35A UL current rating, 1 kV IEC / 600V UL voltage rating, and identical termination style (screwless push-in spring). The difference in features (mating flange vs. locking ramp) does not affect functional compatibility.

Q: What is the significance of the different features (mating flange vs. locking ramp)?

A: The mating flange on the 1749256 and the locking ramp on the 1748914 are mechanical features that enhance connector stability during mating. Both serve to secure the connection but through different mechanisms. Selection between them depends on application-specific requirements for connector retention and ease of disconnection.

Q: Why is the 1749256 classified as obsolete?

A: Product obsolescence typically reflects manufacturer discontinuation decisions. The 1748914 serves as the active replacement within the COMBICON ISPC series, maintaining full functional equivalence while offering improved feature design.

Q: Are there packaging differences between these parts?

A: The 1749256 packaging is not specified in available documentation. The 1748914 is available in bulk packaging, suitable for production-scale applications. Confirm packaging requirements with your procurement specifications.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the 1749256 and 1748914 are RoHS compliant and carry UL94 V-0 material flammability certification. Moisture sensitivity level is 1 (Unlimited) for both components, indicating no special storage or handling requirements.

Q: What wire gauges are supported by the 1748914?

A: The 1748914 supports the same wire gauge range as the 1749256: 8-24 AWG (0.2-10mm²), with a wire strip length of 15mm.