Phoenix Contact 1646337 Heavy Duty Connector Base - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1646337 is a Heavy Duty Connector base unit designed for box mount, side entry applications with M25 thread size in the HEAVYCON® B series. This connector provides IP65 ingress protection (dust tight, water resistant) and operates across a temperature range of -40°C to 125°C. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this connector type is specified.

Substiute Parts

1646337

Phoenix ContactIn Stock: 8381646337 Datasheet

Current PartRFQ

1412877

Phoenix ContactIn Stock: 12471412877 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1646337 is determined by the following critical parameters that must remain constant or be enhanced:

• Connector Type & Style: Must be Base - Box Mount, Side Entry configuration
• Size Designation: Must be B24
• Thread Size: Must be M25
• Physical Dimensions: Must match 144.00mm L x 57.00mm W x 68.00mm H
• Lock Location: Must feature Locking Clip (1) on Base Bottom
• Housing Material: Must be Aluminum, Die Cast
• Operating Temperature Range: Must support -40°C ~ 125°C minimum
• RoHS Compliance: Must maintain RoHS Compliant status
• Ingress Protection: Must meet or exceed IP65 specification

The substitute part 1412877 satisfies all mandatory parameters while providing enhanced ingress protection (IP66/IP67/IP69K) and additional features including feed-through capability and salt water resistance.

Parameter Comparison

Engineering Selection Recommendations

The 1412877 serves as a direct functional substitute for the obsolete 1646337. Both connectors maintain identical mechanical interfaces (B24 size, M25 thread, side entry configuration) and physical envelope dimensions, ensuring drop-in compatibility in existing mounting applications.

The 1412877 is classified as Active product status, providing supply chain continuity and long-term availability. Both parts maintain RoHS compliance and identical operating temperature specifications.

The 1412877 provides enhanced ingress protection at IP66/IP67/IP69K compared to the IP65 rating of the 1646337, representing a performance upgrade suitable for applications requiring higher environmental sealing standards. The addition of feed-through capability and salt water resistance in the 1412877 extends application flexibility without compromising the core connector interface.

Frequently Asked Questions (FAQ)

Q: Can the 1412877 be used as a direct replacement for the 1646337?

A: Yes. Both connectors share identical connector type (Base - Box Mount), style (Side Entry), size (B24), thread size (M25), physical dimensions, and lock mechanism. The 1412877 maintains all mechanical and electrical interface requirements of the 1646337.

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

A: The 1412877 provides enhanced ingress protection (IP66/IP67/IP69K versus IP65) and includes feed-through and salt water resistance features. Both operate across -40°C to 125°C and use identical aluminum die-cast housing.

Q: Why is the 1646337 listed as obsolete?

A: The 1646337 belongs to the HEAVYCON® B series, which has been superseded by the HEAVYCON® EVO series (represented by the 1412877). Phoenix Contact has transitioned product lines to the newer EVO generation.

Q: Are there any compatibility concerns when substituting the 1412877 for the 1646337?

A: No compatibility concerns exist. Identical physical dimensions, thread specifications, and mounting interfaces ensure mechanical compatibility. The enhanced IP rating of the 1412877 represents a performance improvement with no degradation of existing functionality.

Q: What packaging is available for the 1412877?

A: The 1412877 is supplied in Bulk packaging, with 1162 pieces available in current inventory.