Molex 0391701034 Terminal Block Interface Module - Equivalent & Substitute Parts

Part Overview

The Molex 0391701034 is a 34-position interface module terminal block featuring screw connection on the process side and rectangular male connector on the control side. This component is designed for applications requiring 12-26 AWG wire gauge connectivity with a rated voltage of 300V and 15A per-contact current capacity. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

0391701034

MolexIn Stock: 10480391701034 Datasheet

Current PartRFQ

2315065

Phoenix ContactIn Stock: 10792315065 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0391701034 is based on the following critical parameters that must align between the main part and substitute components:

Primary Matching Criteria:

• Positions / Poles: 34 (exact match required)
• Process Side Connection: Terminal Blocks - Screw Connection (exact match required)
• Control Side Connection: Rectangular, Male (exact match required)
• Control Side Cable Retainer: Latches (exact match required)

Secondary Compatibility Parameters:

• Wire Gauge: 12-26 AWG (substitute must support this range or a subset thereof)
• Voltage - Rated: 300V (substitute must meet or exceed this specification)
• Current Rating (Per Contact): 15 A (substitute must meet or exceed this specification)
• Operating Temperature: 110°C (substitute must support this maximum operating point)

The Phoenix Contact 2315065 qualifies as a substitute based on matching the primary criteria of 34-position configuration, screw connection process side, rectangular male control side connection, and latch-type cable retainer. Wire gauge compatibility exists within the 12-24 AWG range, which is a subset of the original 12-26 AWG specification.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2315065 provides functional equivalence in terms of mechanical interface configuration (34-position screw-to-rectangular male connector with latches). However, electrical performance differs significantly across three critical parameters:

Voltage Rating: The substitute is rated for 60V maximum, compared to the original 300V rating. Applications operating above 60V cannot use this substitute.

Current Capacity: The substitute provides 1A per-contact rating versus the original 15A specification. Applications requiring current delivery above 1A per contact cannot use this substitute.

Operating Temperature: The substitute operates within -20°C to 50°C, whereas the original supports 110°C. Applications requiring operation at temperatures above 50°C cannot use this substitute.

Wire Gauge: The substitute supports 12-24 AWG, which excludes 26 AWG wiring. Applications using 26 AWG conductors cannot use this substitute.

Selection of the Phoenix Contact 2315065 is appropriate only for applications where all of the following conditions are met: system voltage does not exceed 60V, per-contact current does not exceed 1A, operating temperature remains below 50°C, and wire gauge is limited to 12-24 AWG. Both components maintain ROHS3 compliance and are suitable for applications with equivalent regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2315065 directly replace the Molex 0391701034 in all applications?

A: No. While both components share identical mechanical interface specifications (34 positions, screw connection, rectangular male connector, latches), the Phoenix Contact substitute has significantly reduced electrical ratings. Substitution is only valid when application requirements are within the lower electrical specifications of the Phoenix Contact part.

Q: What is the primary limitation when using the Phoenix Contact 2315065 as a substitute?

A: The substitute has three major electrical limitations: 60V maximum voltage (versus 300V), 1A per-contact current (versus 15A), and 50°C maximum operating temperature (versus 110°C). Any application exceeding these parameters cannot use this substitute.

Q: Does the wire gauge difference affect substitution compatibility?

A: The Phoenix Contact 2315065 supports 12-24 AWG, which is a subset of the original 12-26 AWG range. Applications using 26 AWG conductors cannot use this substitute. Applications limited to 12-24 AWG are compatible.

Q: Are there packaging differences between these components?

A: The Molex 0391701034 is supplied without specified packaging, while the Phoenix Contact 2315065 is supplied in box packaging. This difference does not affect functional compatibility but may impact inventory and handling procedures.

Q: Why is the Molex part listed as obsolete?

A: The Molex 0391701034 is classified as obsolete, indicating it is no longer in active production. The Phoenix Contact 2315065 is an active product currently manufactured, making it available for new designs and ongoing system support where electrical specifications align with application requirements.

Q: Are both components RoHS compliant?

A: Yes. Both the Molex 0391701034 and Phoenix Contact 2315065 are ROHS3 compliant, meeting equivalent environmental and regulatory standards for restricted substance use.