Phoenix Contact 1973042 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1973042 is a 3-position terminal block plug with female sockets, 0.400" (10.16mm) pitch, designed for 180° free-hanging in-line applications. This component features screw-type rising cage clamp termination and is rated for 41A (IEC) / 50A (UL) operation at 1 kV (IEC) / 600V (UL). The part is currently classified as obsolete, making identification of suitable substitutes essential for ongoing system maintenance and new designs requiring compatible connectivity solutions.

Substiute Parts

1973042

Phoenix ContactIn Stock: 8081973042 Datasheet

Current PartRFQ

1737530

Phoenix ContactIn Stock: 11421737530 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Phoenix Contact 1737530 qualifies as a direct substitute for the 1973042 based on the following critical parameters that determine functional compatibility:

• Identical pitch specification (0.400" / 10.16mm) ensures mechanical mating with corresponding receptacles
• Matching connector type (3-position plug with female sockets) maintains electrical interface compatibility
• Identical mounting configuration (free-hanging, in-line, 180° wire entry) preserves installation geometry
• Equivalent termination method (screw-type rising cage clamp) allows identical wire connection procedures
• Same housing material and flammability rating (Polyamide PA, UL94 V-0) maintains environmental and safety performance
• Identical screw size (M4) ensures tool and torque specification compatibility
• Same series designation (COMBICON PC) confirms design family compatibility

The 1737530 represents an active product with enhanced electrical performance characteristics (higher current and voltage ratings, expanded wire gauge acceptance) while maintaining all mechanical and interface parameters required for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1737530 is the appropriate substitute for the obsolete 1973042 based on the following engineering criteria:

Product Status & Availability: The 1973042 is classified as obsolete, while the 1737530 maintains active product status with confirmed inventory availability (1051 pcs in stock). This ensures long-term supply chain continuity and future component availability.

Compliance & Certification: Both parts maintain identical safety certifications (UL94 V-0 flammability rating) and voltage/frequency ratings (1 kV IEC, 600V UL). The 1737530 carries ROHS3 compliance, representing current regulatory alignment compared to the legacy RoHS designation of the 1973042.

Mechanical & Electrical Interface: The 1737530 preserves all critical mechanical parameters (pitch, mounting configuration, wire entry angle, screw size) ensuring direct physical and electrical compatibility with existing mating receptacles and installation geometries.

Performance Enhancement: The 1737530 provides superior electrical performance with increased current capacity (76A IEC vs. 41A IEC) and expanded wire gauge acceptance (6-20 AWG vs. 8-20 AWG), enabling broader application flexibility without compromising backward compatibility.

Installation Considerations: Torque specification adjustment is required (1.7-1.8 Nm for 1737530 vs. 1.2-1.5 Nm for 1973042). This represents a minor procedural change with no impact on connector reliability or performance.

Frequently Asked Questions (FAQ)

Q: Can the 1737530 directly replace the 1973042 in existing installations?

A: Yes. The 1737530 maintains identical pitch (10.16mm), connector type (3-position female socket plug), mounting configuration (free-hanging in-line), and termination method (screw rising cage clamp). Physical and electrical compatibility with existing mating receptacles is preserved.

Q: What are the key differences between these parts?

A: The primary differences are product status (1973042 is obsolete; 1737530 is active), current ratings (76A IEC for 1737530 vs. 41A IEC for 1973042), wire gauge acceptance (6-20 AWG for 1737530 vs. 8-20 AWG for 1973042), and screw torque specification (1.7-1.8 Nm for 1737530 vs. 1.2-1.5 Nm for 1973042).

Q: Are there packaging differences between these parts?

A: The 1973042 was supplied with unspecified packaging, while the 1737530 is supplied in bulk packaging. This distinction affects procurement and inventory management but does not impact component performance or compatibility.

Q: Do both parts meet current regulatory requirements?

A: Both parts meet UL94 V-0 flammability standards and voltage/frequency ratings. The 1737530 carries ROHS3 compliance, representing alignment with current regulatory frameworks, while the 1973042 carries legacy RoHS designation.

Q: Is torque specification adjustment necessary when installing the 1737530?

A: Yes. The 1737530 requires screw torque of 1.7-1.8 Nm compared to 1.2-1.5 Nm for the 1973042. This adjustment must be applied during wire termination to ensure proper contact pressure and electrical performance.

Q: Can the 1737530 accept larger wire gauges than the 1973042?

A: Yes. The 1737530 accepts wire gauges from 6-20 AWG (0.75-16mm²) compared to 8-20 AWG (0.5-10mm²) for the 1973042, providing expanded application flexibility for higher current circuits.