Phoenix Contact 1646421 Heavy Duty Connector - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1646421 is a base-mount, side-entry heavy duty connector in the HEAVYCON® B series, designed for box mounting applications with M32 thread size and B10 connector size. This connector provides IP65 ingress protection (dust tight, water resistant) and operates across a wide temperature range of -40°C to 125°C. The part is currently obsolete, making identification of suitable substitute components essential for system maintenance, repair, and new design implementations where equivalent functionality is required.

Substiute Parts

1646421

Phoenix ContactIn Stock: 8341646421 Datasheet

Current PartRFQ

1082579

Phoenix ContactIn Stock: 8401082579 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 1646421 is determined by strict alignment of the following critical parameters:

• Connector Type & Mounting: Must be base-mount, box-mount configuration
• Entry Style: Side entry orientation required
• Size Designation: B10 connector size
• Thread Interface: M32 thread size for mechanical compatibility
• Operating Temperature: -40°C to 125°C range
• Housing Material & Construction: Aluminum die-cast housing
• Lock Mechanism: Locking clip on base bottom

The substitute part Phoenix Contact 1082579 maintains these core parameters while providing enhanced ingress protection (IP66/IP67 versus IP65) and additional features such as dual entry capability and salt water resistance. Both parts share identical operating temperature ranges, housing materials, and mechanical mounting interfaces, establishing direct substitution compatibility.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1082579 is the direct substitute for the obsolete 1646421. Selection is based on the following engineering criteria:

• Mechanical Compatibility: Both parts share identical connector type, size designation (B10), thread interface (M32), and mounting configuration (base-mount, side entry)
• Environmental Performance: The substitute provides enhanced ingress protection (IP66/IP67 versus IP65), offering superior dust and water resistance without compromising the original operating temperature range (-40°C to 125°C)
• Regulatory Compliance: The 1082579 maintains RoHS compliance (ROHS3 standard) and is REACH unaffected, meeting current regulatory requirements
• Product Availability: The 1082579 is active in production with confirmed inventory availability, whereas the 1646421 is obsolete
• Functional Enhancement: The dual entry capability and salt water resistance of the 1082579 provide additional design flexibility for applications requiring enhanced environmental protection

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1082579 directly replace the 1646421 in existing installations?

A: Yes. Both connectors share identical mechanical interfaces (M32 thread, B10 size, side-entry configuration, base-mount design) and operating temperature ranges (-40°C to 125°C). The 1082579 provides enhanced ingress protection (IP66/IP67 versus IP65) and is fully compatible with existing mounting hardware and mating components.

Q: What is the primary difference between these two connectors?

A: The 1082579 provides superior ingress protection (IP66/IP67 waterproof rating versus IP65 water-resistant rating) and includes dual entry capability and salt water resistance. Both maintain identical mechanical mounting and thermal specifications.

Q: Why is the 1646421 listed as obsolete?

A: The 1646421 has been discontinued by Phoenix Contact. The 1082579 represents the current active production equivalent, offering improved environmental protection and enhanced features while maintaining full mechanical and thermal compatibility.

Q: Are there any packaging differences between these parts?

A: The 1646421 was supplied with standard packaging, while the 1082579 is supplied in bulk packaging. This does not affect connector functionality or compatibility.

Q: Does the enhanced IP rating of the 1082579 affect installation procedures?

A: No. Both connectors use identical locking mechanisms (locking clip on base bottom) and M32 thread interfaces. Installation procedures remain unchanged.