Phoenix Contact 1521261 Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1521261 is a 4-position circular connector plug with male pins, screw termination, and M12-4 shell size. This connector is designed for industrial applications requiring IP67 ingress protection, shielded construction, and gold-plated mating contacts. The part is currently active in production with 1071 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when design requirements permit alternative manufacturers.

Substiute Parts

1521261

Phoenix ContactIn Stock: 10861521261 Datasheet

Current PartRFQ

21033891402

HARTINGIn Stock: 114821033891402 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1521261 is determined by strict alignment with the following critical parameters:

• Connector type must be plug with male pins
• Position count must be exactly 4
• Shell size must be M12-4
• Termination method must be screw-based
• Fastening type must be threaded
• Orientation must be D
• Contact finish at mating surface must be gold
• Ingress protection rating must be IP67 or higher
• Shielding must be present
• Current rating must support minimum 4A
• Mounting configuration must be free hanging (in-line)
• RoHS3 compliance is required

The HARTING 21033891402 meets all substitution criteria. Both parts share identical mechanical interfaces, electrical performance specifications within rated parameters, and regulatory compliance status. The parts are mechanically and electrically interchangeable within the specified operating conditions.

Parameter Comparison

Engineering Selection Recommendations

Both the Phoenix Contact 1521261 and HARTING 21033891402 are active production parts with ROHS3 compliance and EAR99 export classification. Selection between these parts should be based on:

• Availability and lead time requirements
• Voltage rating tolerance: The HARTING part supports 250V versus the Phoenix Contact part's 48VAC/60VDC specification. Applications operating at the Phoenix Contact rated voltage are fully compatible with the HARTING substitute.
• Operating temperature range: The Phoenix Contact part extends to -40°C, providing a 10°C lower minimum operating temperature than the HARTING part. Applications requiring operation below -30°C must use the Phoenix Contact part.
• Cable opening range: The HARTING part accommodates cable diameters from 4.00mm, providing greater flexibility for smaller cable installations compared to the Phoenix Contact part's 6.00mm minimum.
• Regulatory compliance: Both parts meet identical compliance requirements for RoHS3, REACH, and export control classifications.

Frequently Asked Questions (FAQ)

Q: Can the HARTING 21033891402 be used as a direct replacement for the Phoenix Contact 1521261?

A: Yes, for applications operating within the Phoenix Contact part's specified voltage range (48VAC, 60VDC) and temperature range (-40°C to 85°C). Both parts share identical mechanical interfaces, pin configurations, and electrical performance at rated specifications. The HARTING part supports higher voltage (250V) and accommodates a wider cable opening range (4.00mm to 8.00mm).

Q: What are the mechanical compatibility requirements?

A: Both parts are M12-4 connectors with D orientation, screw termination, and threaded fastening. They are mechanically interchangeable in any application designed for M12-4 circular connectors with these specifications.

Q: Are there any temperature-related limitations when substituting?

A: The Phoenix Contact 1521261 operates from -40°C to 85°C, while the HARTING 21033891402 operates from -30°C to 85°C. Applications requiring operation below -30°C must use the Phoenix Contact part. For applications within -30°C to 85°C, both parts are suitable.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both parts are ROHS3 compliant, classified as EAR99 for export control, and share the same HTSUS code (8536.69.4020). Moisture sensitivity level is identical at MSL 1 (Unlimited) for both parts.

Q: What is the difference in contact material between these parts?

A: The Phoenix Contact part uses Copper Zinc contacts, while the HARTING part uses Brass contacts. Both materials are suitable substrates for gold plating and provide equivalent electrical performance and corrosion resistance in the specified operating environment.

Q: Can cable diameter affect substitution compatibility?

A: The Phoenix Contact part accepts cables from 6.00mm to 8.00mm, while the HARTING part accepts cables from 4.00mm to 8.00mm. For cables between 4.00mm and 6.00mm, only the HARTING part is suitable. For cables between 6.00mm and 8.00mm, both parts are compatible.