Phoenix Contact 2281225 - 50 Position Interface Module Terminal Block

Part Overview

The Phoenix Contact 2281225 is a 50-position interface module terminal block designed for screw connection to D-Sub female connectors. This component facilitates signal and power distribution in industrial control systems, combining process-side screw terminals with a D-Sub female control interface. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and new design implementations where inventory is unavailable.

Substiute Parts

2281225

Phoenix ContactIn Stock: 10162281225 Datasheet

Current PartRFQ

8019920000

WeidmüllerIn Stock: 8428019920000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 2281225 is determined by the following critical parameters:

• Connector Configuration: D-Sub female control interface with 50-position screw terminal process connection
• Electrical Ratings: Voltage and current capacity must meet or exceed the original specification
• Wire Gauge Compatibility: Acceptable wire gauge range must accommodate 12-24 AWG conductors
• Physical Interface: Jackscrew socket retention mechanism for D-Sub mating
• Compliance: RoHS compliance status and regulatory certifications

The Weidmüller 8019920000 qualifies as a functional substitute based on matching connector topology, position count, screw terminal process connection, D-Sub female control interface, and RoHS compliance. Variations in electrical ratings, operating temperature range, and wire gauge acceptance are documented in the parameter comparison table.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 8019920000 is an active-status substitute for the obsolete Phoenix Contact 2281225. Both components maintain RoHS compliance and identical connector topology with 50-position screw terminal to D-Sub female interface.

Selection considerations based on provided specifications:

• Current Capacity: The Weidmüller substitute carries 1.5 A per contact versus 2.5 A for the original. Applications requiring the full 2.5 A rating per contact must verify that actual circuit loads do not exceed 1.5 A.
• Wire Gauge Range: The Weidmüller part accepts 12-26 AWG, providing broader compatibility than the original 12-24 AWG specification.
• Operating Temperature: The Weidmüller part operates from 0°C to 55°C, compared to -20°C to 50°C for the original. Applications in sub-zero environments require confirmation that the substitute meets thermal requirements.
• Voltage Rating: The Weidmüller part is rated for 125VAC or 150VDC, providing DC voltage capability not explicitly stated in the original specification.
• Availability: The Weidmüller 8019920000 is in active production status, ensuring long-term supply availability.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 8019920000 directly replace the Phoenix Contact 2281225 in existing installations?

A: Physical and electrical interface compatibility is confirmed. The D-Sub female connector, 50-position screw terminal configuration, and jackscrew socket retention are identical. However, the reduced current rating (1.5 A versus 2.5 A per contact) and narrower low-temperature operating range (0°C minimum versus -20°C) must be evaluated against actual application requirements.

Q: What is the significance of the wire gauge difference (12-24 AWG versus 12-26 AWG)?

A: The Weidmüller substitute accepts a broader wire gauge range, including 25 and 26 AWG conductors. This provides greater flexibility for applications using smaller gauge wiring. Existing installations using 12-24 AWG are fully compatible.

Q: Are both parts RoHS compliant?

A: Yes. Both the Phoenix Contact 2281225 and Weidmüller 8019920000 are RoHS compliant, meeting regulatory requirements for hazardous substance restrictions.

Q: Why is the Phoenix Contact 2281225 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The Weidmüller 8019920000 remains in active production, providing a path forward for system maintenance and new designs requiring this connector topology.

Q: Does the Weidmüller part include a label holder?

A: Yes. Both components include a label holder feature for terminal identification.