1221491

Overview

The Phoenix Contact 1221491 is a PTFIX series Ex e-certified monoblock terminal block designed for hazardous area applications. It features a gray housing and supports a nominal wire cross-section of 2.5 mm² with a push-in connection mechanism. The unit accommodates two wires and has a rated current (In) of 20 A. Mounting options include snapping onto a DIN rail adapter, direct mounting with flange, or free-hanging installation.

Feature Summary

• Ex e certification for use in hazardous areas
• Push-in connection technology for rapid wiring
• Versatile mounting configurations including DIN rail and free-hanging

Applications

• Hazardous area electrical installations
• Industrial control panel wiring
• Power distribution blocks

Procurement Notes

Verify the specific Ex e certification requirements against your site's hazardous zone classification before procurement. Confirm that the 20 A rated current and 2.5 mm² wire capacity meet your circuit design specifications. Ensure compatibility with the intended mounting method, whether DIN rail adapter, flange, or free-hanging. Cross-reference the part number 1221491 to ensure exact model matching as distributor listings may vary.

Selection Notes

Select this component when Ex e certification is mandatory for the application environment. The push-in connection offers speed advantages over screw terminals but requires compatible wire types. Consider the 20 A current rating and 2.5 mm² capacity to ensure adequate load handling. Evaluate the physical space constraints for DIN rail or free-hanging mounting options during system design.

Part Context

This component belongs to the Phoenix Contact PTFIX series, which specializes in terminal blocks for industrial automation and hazardous area applications. The PTFIX line emphasizes secure connections and safety compliance. The 1221491 variant specifically addresses the need for certified basic terminal blocks in environments requiring explosion protection measures.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing systems if considering alternatives from other manufacturers.