Phoenix Contact 1644643 Hood Connector Side Entry M25 B16 Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1644643 is a heavy-duty hood connector with side entry configuration, M25 thread size, and B16 contact arrangement. This connector provides IP65/IP68/IP69K ingress protection for dust-tight and waterproof applications across industrial environments. The part is classified as obsolete, making identification of active equivalent models essential for procurement and system continuity.

Substiute Parts

1644643

Phoenix ContactIn Stock: 7511644643 Datasheet

Current PartRFQ

1414978

Phoenix ContactIn Stock: 11861414978 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Phoenix Contact 1414978 qualifies as a direct substitute for the 1644643 based on the following critical parameters:

• Connector Type & Style: Both are hood connectors with side entry configuration
• Contact Arrangement: Both feature B16 contact size
• Thread Size: Both use M25 thread specification
• Series: Both belong to the HEAVYCON-ADVANCE® series
• Housing Material: Both utilize aluminum die-cast construction
• Operating Temperature: Both support -40°C to 125°C range
• RoHS Compliance: Both are RoHS compliant
• Ingress Protection: Both meet or exceed IP65/IP68/IP69K standards

The 1414978 represents an active product status alternative, making it suitable for new designs and replacement applications where the obsolete 1644643 is no longer available.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1414978 is the appropriate substitute for the obsolete 1644643. Both connectors maintain identical mechanical and electrical specifications within the HEAVYCON-ADVANCE® series, including connector type, contact arrangement, thread size, and operating temperature range. The 1414978 provides enhanced ingress protection at IP66 minimum (compared to IP65 minimum on the 1644643) while maintaining full compliance with IP68/IP69K standards. Both parts are RoHS compliant and constructed from aluminum die-cast housing, ensuring compatibility in existing installations and new system designs. The active product status of the 1414978 ensures long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 1414978 directly replace the 1644643 in existing installations?

A: Yes. Both connectors share identical connector type, style, contact arrangement (B16), thread size (M25), and operating temperature specifications. The 1414978 provides equivalent or superior ingress protection and maintains the same mechanical interface.

Q: What is the difference in ingress protection between these parts?

A: The 1644643 specifies IP65/IP68/IP69K, while the 1414978 specifies IP66/IP68/IP69K. Both meet the same maximum protection levels (IP68/IP69K). The difference at minimum protection is IP65 versus IP66, with IP66 providing enhanced dust protection.

Q: Are there packaging differences between these parts?

A: The 1644643 is supplied with unspecified packaging, while the 1414978 is supplied in bulk packaging. This does not affect connector functionality or compatibility.

Q: Do both parts meet RoHS compliance requirements?

A: Yes. Both the 1644643 and 1414978 are RoHS compliant, meeting environmental and regulatory standards for industrial applications.

Q: What is the temperature operating range for these connectors?

A: Both connectors operate across -40°C to 125°C, supporting applications in extreme thermal environments.