Phoenix Contact 1755651 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1755651 is a 9-position terminal block plug designed for unshrouded headers with 5.00mm pitch spacing and 90° wire entry orientation. This COMBICON PT series component features screw-based rising cage clamp termination and is rated for 10A at 630V (IEC) or 300V (UL). The part is active in production with 978 units currently in stock. Equivalent and substitute parts are identified to support procurement flexibility, design revisions, or supply chain continuity when the primary part becomes unavailable.

Substiute Parts

1755651

Phoenix ContactIn Stock: 10291755651 Datasheet

Current PartRFQ

0395300109

MolexIn Stock: 22820395300109 Datasheet

SimilarRFQ

0395305009

MolexIn Stock: 20660395305009 Datasheet

SimilarRFQ

1282460000

WeidmüllerIn Stock: 10101282460000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1755651 is determined by the following critical parameters:

• Position Count: Must be 9 positions
• Pitch Tolerance: 5.00mm (0.197") to 5.08mm (0.200") are mechanically compatible within industry standards for terminal block connectors
• Termination Method: Screw-based cage clamp systems (rising cage clamp or clamping yoke) are functionally equivalent
• Mounting Type: Free hanging (in-line) configuration required
• Wire Gauge Compatibility: Minimum overlap of 14-28 AWG range
• Voltage/Current: Substitute must meet or exceed IEC 630V / 10A or UL 300V / 10A ratings
• Housing Material: Polyamide or equivalent thermoplastic materials acceptable
• Compliance: RoHS compliance required for modern procurement

Three substitute parts meet these criteria: Molex 0395300109, Molex 0395305009, and Weidmüller 1282460000. All maintain 9-position configuration, screw termination, free-hanging mounting, and acceptable pitch variance within connector mating tolerances.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are active products with current RoHS compliance certifications, supporting long-term design viability.

Molex 0395300109 and 0395305009 (Eurostyle ESE 39530 series) provide direct functional equivalence with identical rising cage clamp termination and higher UL current rating (15A vs. 10A). The primary design difference is wire entry angle (180° vs. 90°), which requires mechanical layout verification. Both parts are available in high inventory (2195 and 2034 units respectively). Selection between these two Molex variants depends on color requirement: 0395300109 is black, 0395305009 is green.

Weidmüller 1282460000 (Unimate BLA series) offers the widest operating temperature range (-50°C to 120°C) and uses glass-filled PBT housing for enhanced mechanical durability. Termination employs clamping yoke technology rather than rising cage clamp, which is functionally equivalent for screw-based wire retention. IEC current rating is higher (17.5A), and wire strip length is 7mm versus 6mm on the Phoenix Contact part. This variant is suitable for applications requiring extended temperature performance or enhanced housing material properties.

Frequently Asked Questions (FAQ)

Q: Can Molex 0395300109 or 0395305009 be used as direct replacements for Phoenix Contact 1755651?

A: Functionally yes, with mechanical layout verification required. The 0.08mm pitch difference (5.08mm vs. 5.00mm) is within industry tolerance for terminal block mating. The critical difference is wire entry angle: Molex parts feature 180° (straight) entry versus 90° (right-angle) on the Phoenix Contact. PCB layout and wire routing must accommodate this orientation change.

Q: What is the difference between Molex 0395300109 and 0395305009?

A: Both are identical Eurostyle ESE 39530 series plugs with the same electrical and mechanical specifications. The only difference is housing color: 0395300109 is black, 0395305009 is green. Selection is based on color-coding requirements in the application.

Q: Is the Weidmüller 1282460000 suitable for high-temperature applications?

A: Yes. The Weidmüller part operates from -50°C to 120°C, exceeding the temperature range of the Phoenix Contact part (not specified). The glass-filled PBT housing provides enhanced thermal stability compared to standard polyamide. This variant is recommended for applications with extended temperature requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. Phoenix Contact 1755651, Molex 0395300109, Molex 0395305009, and Weidmüller 1282460000 all carry active RoHS compliance certifications (RoHS Compliant or ROHS3 Compliant), meeting current procurement standards.

Q: What wire gauge compatibility should be verified when substituting?

A: The Phoenix Contact part accepts 14-28 AWG wire. All three substitutes accept 12-26 AWG. The overlap range is 14-26 AWG, which is fully compatible. If your design uses 12 AWG or 27-28 AWG wire, verify compatibility with the specific substitute selected.

Q: Can the screw torque specifications differ between parts?

A: Yes. Phoenix Contact 1755651 specifies 0.35-0.4 Nm torque. Molex parts specify 0.56 Nm, and Weidmüller specifies 0.4-0.5 Nm. Technicians must apply the correct torque for each part to ensure proper wire retention and avoid over-tightening or under-tightening.