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Phoenix Contact 1604789 Heavy Duty Connector Base - Equivalent & Substitute Parts
Part Overview
The Phoenix Contact 1604789 is a Heavy Duty Connector base unit designed for box mount, side entry applications with M32 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 product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new installations where legacy components are no longer available.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 1604789 |
| Manufacturer | Phoenix Contact |
| Category | Heavy Duty Connectors |
| Connector Type | Base - Box Mount |
| Style | Side Entry |
| Size | B16 |
| Thread Size | M32 |
| Ingress Protection | IP65 |
| Operating Temperature | -40°C to 125°C |
| Housing Material | Aluminum, Die Cast |
| RoHS Status | RoHS Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the Phoenix Contact 1604789 is determined by the following critical parameters that must remain constant or be enhanced:
- Connector Type & Style: Base - Box Mount, Side Entry configuration
- Size Designation: B16 form factor
- Thread Size: M32 mechanical interface
- Operating Temperature Range: -40°C to 125°C minimum
- Housing Material: Aluminum, Die Cast construction
- RoHS Compliance: Required for regulatory alignment
- Ingress Protection: IP65 minimum (higher ratings acceptable)
The substitute part 1412856 maintains all mandatory mechanical and electrical parameters while offering enhanced ingress protection (IP66/IP67/IP69K) and additional environmental features. Both parts share identical connector type, size, thread size, temperature range, housing material, and RoHS compliance status.
Parameter Comparison
| Parameter | 1604789 (Main Part) | 1412856 (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 | B16 | B16 |
| Thread Size | M32 | M32 |
| Lock Location | Locking Clip (2) on Base Bottom | Locking Clip (2) on Base Bottom |
| Ingress Protection | IP65 | IP66/IP67/IP69K |
| Housing Material | Aluminum, Die Cast | Aluminum, Die Cast |
| Operating Temperature | -40°C to 125°C | -40°C to 125°C |
| RoHS Status | RoHS Compliant | RoHS Compliant |
| Product Status | Obsolete | Active |
| Series | HEAVYCON® B | HEAVYCON® EVO |
Engineering Selection Recommendations
The Phoenix Contact 1412856 serves as a direct functional substitute for the obsolete 1604789. Both connectors maintain identical mechanical interfaces (M32 thread, B16 size, side entry configuration) and thermal operating specifications (-40°C to 125°C). The substitute part is manufactured by the same OEM and carries active product status with current inventory availability.
The 1412856 provides enhanced ingress protection (IP66/IP67/IP69K versus IP65) and includes salt water resistance features, representing a specification improvement over the original part. Both parts maintain RoHS compliance and identical housing material specifications. The dimensional variance is minimal (1.0mm height difference), presenting no mechanical incompatibility for standard box mount applications.
Selection of the 1412856 is supported by its active product status, enhanced environmental protection ratings, and continued OEM support within the HEAVYCON® EVO series.
Frequently Asked Questions (FAQ)
Q: Can the 1412856 directly replace the 1604789 in existing installations?
A: Yes. Both connectors share identical connector type (Base - Box Mount), style (Side Entry), size (B16), thread size (M32), locking mechanism, and operating temperature range. The mechanical interface and mounting footprint are compatible for standard box mount applications.
Q: What is the primary difference between these two parts?
A: The 1412856 offers enhanced ingress protection (IP66/IP67/IP69K) compared to the 1604789 (IP65) and includes salt water resistance. Both maintain identical electrical and mechanical specifications for the B16 M32 connector interface.
Q: Why is the 1604789 listed as obsolete?
A: The 1604789 belongs to the HEAVYCON® B series, which has been superseded by the HEAVYCON® EVO series (represented by the 1412856). Phoenix Contact has transitioned product lines to the newer EVO generation.
Q: Are there any temperature or compliance differences?
A: No. Both parts operate across -40°C to 125°C and maintain RoHS compliance. There are no thermal or regulatory compliance differences between the two connectors.
Q: What packaging options are available?
A: The 1604789 is supplied in standard packaging, while the 1412856 is available in bulk packaging. Both formats support equivalent quantities for procurement purposes.
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