Phoenix Contact 1678156 Heavy Duty Connector Base - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1678156 is a Heavy Duty Connector base unit designed for box mount applications with side entry configuration. This connector operates within the HEAVYCON® B series and provides IP65 ingress protection suitable for dust-tight and water-resistant environments. The product is currently classified as obsolete, making identification of functionally equivalent substitute parts essential for system maintenance, repair, and new design implementations where this connector type is specified.

Substiute Parts

1678156

Phoenix ContactIn Stock: 11421678156 Datasheet

Current PartRFQ

1082576

Phoenix ContactIn Stock: 11041082576 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1678156 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Connector type classification (Base - Box Mount)
• Configuration style (Side Entry)
• Size designation (B6)
• Series family (HEAVYCON® B)
• Operating temperature range (-40°C to 125°C)
• Housing material (Aluminum, Die Cast)
• RoHS compliance status

Secondary Consideration:

• Ingress protection rating (IP65 minimum)
• Thread size compatibility (PG21 or equivalent M32 dual configuration)

The substitute part 1082576 maintains compatibility across all primary criteria while offering enhanced ingress protection (IP66/IP67) and dual M32 thread configuration. Both parts share identical size dimensions in height (2.913"), operate within the same temperature range, utilize equivalent housing materials, and maintain RoHS compliance.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1082576 serves as the active production equivalent for the obsolete 1678156 model. Both connectors maintain identical core specifications within the HEAVYCON® B series and share the same B6 size classification and operating temperature envelope.

Compliance Considerations:

• The 1678156 carries RoHS Compliant certification
• The 1082576 carries ROHS3 Compliant certification, representing current regulatory alignment
• Both parts maintain EAR99 ECCN classification and identical HTSUS codes (8538.90.8180)

Functional Differences:

• The 1082576 provides enhanced ingress protection (IP66/IP67) compared to the 1678156 (IP65), suitable for applications requiring waterproof performance
• The 1082576 incorporates dual M32 thread configuration versus single PG21 threading on the 1678156
• The 1082576 includes salt water resistance features and feed-through capability
• Dimensional variance exists in length (4mm increase) and width (14mm increase), with identical height retention

For applications where the original PG21 thread specification is mandatory, mechanical adaptation may be required. For applications where enhanced environmental protection is beneficial, the 1082576 provides superior ingress protection without thermal or material composition changes.

Frequently Asked Questions (FAQ)

Q: Can the 1082576 directly replace the 1678156 in existing installations?

A: Direct mechanical replacement is possible due to identical height dimensions and shared B6 size classification. However, the 1082576 features increased length and width dimensions and dual M32 threading versus single PG21 threading. Mounting footprint and thread adapter compatibility must be evaluated for specific installations.

Q: What is the significance of the IP66/IP67 rating upgrade on the 1082576?

A: The 1678156 provides IP65 protection (dust-tight, water-resistant). The 1082576 provides IP66/IP67 protection (dust-tight, water-resistant, and waterproof). This upgrade extends environmental sealing capability for applications exposed to direct water jets or temporary submersion conditions.

Q: Are both connectors RoHS compliant?

A: Yes. The 1678156 carries RoHS Compliant certification. The 1082576 carries ROHS3 Compliant certification, which represents alignment with current regulatory requirements. Both meet RoHS substance restriction standards.

Q: What is the difference between PG21 and M32 threading?

A: PG21 is a metric pipe thread designation. M32 is a metric coarse thread designation. The 1082576 incorporates dual M32 configuration, providing two connection points versus the single PG21 point on the 1678156. Thread adapter compatibility depends on the specific cable gland or connector interface requirements.

Q: Why is the 1678156 classified as obsolete?

A: The 1678156 has been superseded by the 1082576 within Phoenix Contact's product portfolio. The 1082576 provides enhanced environmental protection, dual connectivity options, and current regulatory compliance, making it the active production standard for this connector class.

Q: Are the operating temperature ranges identical?

A: Yes. Both the 1678156 and 1082576 operate across the identical temperature range of -40°C to 125°C, ensuring thermal performance equivalence for industrial applications.

Q: What housing material is used in both connectors?

A: Both connectors utilize aluminum die-cast housing with powder coating finish, providing equivalent structural integrity and corrosion resistance characteristics.