Phoenix Contact 1604728 Heavy Duty Connector - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1604728 is a base-mount side entry heavy duty connector in the HEAVYCON® B series, designed for M25 thread applications with IP65 ingress protection. This connector features a B6 size configuration with a locking clip mechanism and is rated for operating temperatures from -40°C to 125°C.

The 1604728 is classified as obsolete. Identifying suitable substitute parts is essential for maintaining system compatibility in applications where this connector is specified or currently deployed.

Substiute Parts

1604728
Phoenix ContactIn Stock: 9191604728 Datasheet
1604728
Current Part
1412826
Phoenix ContactIn Stock: 11581412826 Datasheet
1412826
Direct

Key Parameters

Parameter Value
Manufacturer Part Number 1604728
Manufacturer Phoenix Contact
Category Heavy Duty Connectors
Series HEAVYCON® B
Connector Type Base - Box Mount
Style Side Entry
Size B6
Thread Size M25
Lock Location Locking Clip (1) on Base Bottom
Ingress Protection IP65 - Dust Tight, Water Resistant
Operating Temperature Range -40°C to 125°C
Housing Material Aluminum, Die Cast
RoHS Status ROHS3 Compliant
Product Status Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1604728 is determined by the following critical parameters:

  • Connector Type & Style: Must be base-mount, side entry configuration
  • Size Designation: B6 size class
  • Thread Interface: M25 thread size
  • Lock Mechanism: Locking clip on base bottom
  • Ingress Protection: Minimum IP65 rating (equal or higher protection class acceptable)
  • Operating Temperature: -40°C to 125°C range
  • Compliance: ROHS3 compliant, REACH unaffected
  • Housing Material: Aluminum die cast construction

The substitute part 1604728 meets all these criteria while offering enhanced ingress protection (IP66/IP67/IP69K) and additional features including salt water resistance and feed-through capability.

Parameter Comparison

Parameter 1604728 (Main Part) 1412826 (Substitute)
Manufacturer Phoenix Contact Phoenix Contact
Category Heavy Duty Connectors Heavy Duty Connectors
Connector Type Base - Box Mount Base - Box Mount
Style Side Entry Side Entry
Size B6 B6
Thread Size M25 M25
Lock Location Locking Clip (1) on Base Bottom Locking Clip (1) on Base Bottom
Ingress Protection IP65 IP66/IP67/IP69K
Operating Temperature -40°C to 125°C -40°C to 125°C
Housing Material Aluminum, Die Cast Aluminum, Die Cast
RoHS Status ROHS3 Compliant ROHS3 Compliant
Product Status Obsolete Active
Series HEAVYCON® B HEAVYCON® EVO

Engineering Selection Recommendations

The Phoenix Contact 1412826 is a direct functional substitute for the 1604728. Both connectors share identical core specifications: B6 size, M25 thread interface, side entry configuration, and base-mount design with identical locking mechanisms.

The 1412826 offers superior ingress protection (IP66/IP67/IP69K versus IP65) and includes salt water resistance, making it suitable for applications requiring enhanced environmental sealing. Both parts maintain identical operating temperature ranges and comply with ROHS3 and REACH requirements.

The 1412826 is currently in active production status, ensuring long-term availability and supply chain continuity compared to the obsolete 1604728.

Frequently Asked Questions (FAQ)

Q: Can the 1412826 directly replace the 1604728 in existing installations?

A: Yes. Both connectors share identical mechanical interfaces (M25 thread, B6 size, side entry, locking clip mechanism) and electrical operating parameters (-40°C to 125°C). The 1412826 provides equal or superior performance in all specified parameters.

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

A: The 1604728 provides IP65 protection (dust tight, water resistant). The 1412826 provides IP66/IP67/IP69K protection (dust tight, water resistant, and waterproof). IP66/IP67/IP69K represents a higher protection class suitable for more demanding environmental conditions.

Q: Are there any dimensional differences?

A: The 1604728 measures 3.307" L x 2.047" W x 2.047" H (84.00mm x 52.00mm x 52.00mm). The 1412826 measures 3.307" L x 2.047" W x 2.150" H (84.00mm x 52.00mm x 54.60mm). The height difference is 2.6mm, which may require verification in space-constrained applications.

Q: Do both parts comply with current regulatory standards?

A: Yes. Both the 1604728 and 1412826 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What packaging options are available?

A: The 1604728 is available in standard packaging. The 1412826 is supplied in bulk packaging.

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