Phoenix Contact 1718478 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1718478 is a 12-position terminal block plug with female sockets, 0.300" (7.62mm) pitch, designed for 180° free-hanging in-line applications. This component features screw-rising cage clamp termination and supports wire gauges from 8-24 AWG (0.2-10mm²). The part is classified as obsolete, making identification of active equivalent models essential for procurement and system continuity.

Substiute Parts

1718478

Phoenix ContactIn Stock: 7371718478 Datasheet

Current PartRFQ

1778162

Phoenix ContactIn Stock: 8791778162 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Phoenix Contact 1718478 can be substituted with part number 1778162 based on the following critical parameters that determine functional equivalence:

• Electrical Compatibility: Both parts maintain identical current (41A IEC, 41A UL) and voltage ratings (1 kV IEC, 600V UL)
• Mechanical Compatibility: Both feature 12 positions at 0.300" (7.62mm) pitch with identical termination style (Screw - Rising Cage Clamp)
• Wire Acceptance: Both accept 8-24 AWG (0.2-10mm²) wire gauges
• Mounting Configuration: Both are free-hanging in-line plugs with 180° wire entry
• Material & Compliance: Both use Polyamide (PA) Nylon housing with UL94 V-0 flammability rating and RoHS compliance
• Series Continuity: Both belong to the COMBICON PC series from Phoenix Contact

The primary distinction is product status: 1718478 is obsolete while 1778162 is active, making 1778162 the recommended procurement choice for new designs and replacements.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using Phoenix Contact 1718478, part number 1778162 is the direct functional equivalent. The substitution is supported by:

• Electrical Equivalence: Identical current and voltage ratings across both IEC and UL standards ensure no circuit redesign is required
• Mechanical Interchangeability: Matching position count, pitch, and mounting configuration provide direct mechanical compatibility
• Compliance Continuity: Both parts maintain RoHS compliance and UL94 V-0 flammability certification
• Active Product Status: 1778162 is an active product with current manufacturing support, ensuring long-term availability and supply chain stability

The obsolete status of 1718478 necessitates transition to 1778162 for new procurements and system replacements. No functional degradation or performance loss occurs with this substitution.

Frequently Asked Questions (FAQ)

Q: Can 1778162 be used as a direct replacement for 1718478 in existing assemblies?

A: Yes. Both parts are electrically and mechanically equivalent with identical ratings (41A, 1 kV IEC; 41A, 600V UL), 12-position configuration at 0.300" pitch, and screw-rising cage clamp termination. Physical dimensions and wire acceptance ranges are identical.

Q: What is the primary reason for substitution?

A: Part 1718478 is classified as obsolete. Part 1778162 is the active equivalent from Phoenix Contact's COMBICON PC series, ensuring continued availability and manufacturing support.

Q: Are there differences in packaging between these parts?

A: Yes. 1718478 is supplied with standard packaging, while 1778162 is supplied in bulk packaging. This does not affect electrical or mechanical performance.

Q: Do both parts accept the same wire gauge range?

A: Yes. Both parts accept 8-24 AWG (0.2-10mm²) wire gauges with identical screw torque specifications (M3 screws).

Q: Are there any dimensional differences?

A: The insulation height differs slightly: 1718478 measures 0.902" (22.90mm) while 1778162 measures 0.776" (19.70mm). This dimensional variation does not affect electrical performance or standard mounting applications but should be verified for space-constrained installations.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are RoHS compliant with UL94 V-0 flammability rating and carry identical ECCN (EAR99) and HTSUS (8536.90.4000) classifications.