Phoenix Contact 1645121 Heavy Duty Connector - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1645121 is a hood-style side entry heavy duty connector with M32 thread size, designed for IP65-rated applications requiring dust-tight and water-resistant sealing. This connector is part of the HEAVYCON® B series and features a B24 size configuration with dual locking clips on the base bottom.

The 1645121 has reached obsolete product status, making it necessary to identify functionally equivalent substitute components for ongoing system maintenance and new installations. Substitute parts must maintain compatibility across critical electrical and mechanical parameters including connector type, style, size designation, thread size, ingress protection rating, and environmental operating specifications.

Substiute Parts

1645121

Phoenix ContactIn Stock: 8431645121 Datasheet

Current PartRFQ

19300240527

HARTINGIn Stock: 74219300240527 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1645121 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Hood configuration
• Style: Side Entry orientation
• Thread Size: M32
• Ingress Protection: IP65 minimum
• Operating Temperature Range: -40°C to 125°C minimum
• Housing Material: Aluminum, Die Cast
• Lock Mechanism: Locking Clip (2) on Base Bottom

Size Designation Compatibility: The B24 size designation of the 1645121 corresponds to a 24-contact configuration. Substitute parts must maintain this contact count or equivalent size class to ensure mechanical and electrical compatibility within the connector interface.

The HARTING 19300240527 (Han® B series, size 24B) meets all mandatory parameters and represents a direct functional equivalent. The 24B designation is equivalent to the B24 configuration, maintaining the same contact arrangement and mechanical interface specifications.

Parameter Comparison

Engineering Selection Recommendations

The HARTING 19300240527 is the qualified substitute for the obsolete Phoenix Contact 1645121 based on the following engineering criteria:

Compliance and Certification Alignment: Both components maintain RoHS compliance, with the HARTING part meeting the more recent ROHS3 standard. Both are REACH Unaffected and carry identical ECCN (EAR99) and HTSUS (8538.90.8180) classifications, ensuring regulatory equivalence for procurement and export purposes.

Product Status Consideration: The HARTING 19300240527 maintains Active product status with confirmed inventory availability (701 pieces), whereas the Phoenix Contact 1645121 is Obsolete. Selection of the active substitute ensures long-term supply chain continuity and access to technical support.

Mechanical and Environmental Equivalence: Both connectors share identical thread size (M32), locking mechanism configuration, ingress protection rating (IP65), and operating temperature range (-40°C to 125°C). Dimensional variations are minimal (width difference of 2mm: 45mm versus 43mm), with length and height remaining constant at 120mm and 76mm respectively.

Series Compatibility: The HARTING Han® B series represents the direct equivalent to the Phoenix Contact HEAVYCON® B series within the heavy duty connector market segment, maintaining functional and mechanical compatibility standards.

Frequently Asked Questions (FAQ)

Q: Can the HARTING 19300240527 be used as a direct replacement for the Phoenix Contact 1645121?

A: Yes. Both connectors meet all critical substitution parameters: identical connector type (Hood), style (Side Entry), thread size (M32), ingress protection (IP65), operating temperature range (-40°C to 125°C), housing material (Aluminum, Die Cast), and locking mechanism configuration. The size designations B24 and 24B are equivalent contact configurations.

Q: What is the significance of the size designation change from B24 to 24B?

A: Both designations represent a 24-contact connector configuration. The notation difference reflects manufacturer-specific naming conventions between Phoenix Contact and HARTING but does not indicate a functional or mechanical difference in contact count or interface compatibility.

Q: Are there any dimensional differences that would affect installation?

A: The HARTING 19300240527 is 2mm narrower (43mm versus 45mm width) while maintaining identical length (120mm) and height (76mm). This minor dimensional variation does not affect mechanical mounting or electrical interface compatibility, as the critical M32 thread size and locking clip configuration remain unchanged.

Q: What compliance certifications apply to both parts?

A: Both components are RoHS Compliant (HARTING meets ROHS3), REACH Unaffected, and carry identical ECCN (EAR99) and HTSUS (8538.90.8180) classifications. These certifications ensure regulatory equivalence for procurement, installation, and export purposes.

Q: Why is product status relevant to the substitution decision?

A: The Phoenix Contact 1645121 is Obsolete, meaning Phoenix Contact no longer manufactures or supports this component. The HARTING 19300240527 maintains Active status with confirmed inventory availability, ensuring supply chain continuity and access to technical documentation and support resources.

Q: Are the packaging formats compatible?

A: The Phoenix Contact 1645121 is supplied in standard packaging, while the HARTING 19300240527 is supplied in Bulk packaging. Both formats contain the same connector component; packaging format selection depends on procurement volume and logistics requirements.