Wire connector PHOENIX-CONTACT 1641772 M12 4-pin straight sensor connector

PHOENIX-CONTACT 1641772 is an M12 4-pin straight wire connector designed for sensor and actuator connections in industrial automation. The connector provides a standardized A-coded 4-position M12 interface and supports reliable signal and power transmission for compact field devices. It is a straight socket version intended for universal use where a durable, space-efficient connection is required.

Advantages

The PHOENIX-CONTACT 1641772 offers an insulation displacement connection that enables time-saving assembly without stripping individual wires, reducing installation time. Its design supports on-site assembly for flexible wiring and its zinc die-cast, nickel-plated knurl provides mechanical robustness. The connector is suitable for safe use in the field due to a high degree of protection and accommodates a range of external cable diameters.

Suitable for

• Wiring sensors and actuators in factory automation
• Connecting small field devices that require a 4-pin M12 A-coded interface
• On-site cable assembly where quick insulation displacement termination is preferred
• Environments requiring compact, straight M12 connections with durable metal housing

When it may not be suitable

This straight 4-pin M12 connector is intended for A-coded sensor/actuator applications and may not be suitable where other pin counts, codings or angled connections are required. It is not intended to replace multi-conductor junction solutions or to serve as a substitute for connectors specified for hazardous-area certifications unless those certifications are explicitly provided.

Key specifications

• Connector type: M12 straight socket, A-coded, 4-position
• Connection method: Insulation displacement connection (IDC)
• Housing knurl material: Zinc die-cast, nickel-plated
• External cable diameter range: 4 mm to 8 mm
• Application: Sensor/actuator connector for signal and power transmission

How to use

Prepare the cable by ensuring the outer jacket matches the specified external diameter range. Use the insulation displacement termination method: insert wires into the designated IDC contacts according to the M12 pin assignment and secure the housing. Tighten the connector as required to achieve the specified degree of protection for field use. Follow standard installation practices for M12 A-coded connectors and verify electrical continuity and polarity after assembly.

What to consider before purchase

• Confirm that a 4-pin M12 A-coded straight socket matches your device pinout and mechanical space constraints
• Ensure the cable outer diameter falls within 4–8 mm for proper sealing and strain relief
• Verify that insulation displacement termination is acceptable for your wiring process and conductor types
• Check that any required environmental or safety certifications for your application are met

Recommendations

For reliable operation, use compatible M12 A-coded mating connectors and follow manufacturer torque and sealing instructions. After assembly, test connections for continuity and mechanical retention before deploying the device in the field.