Phoenix Contact 2959641 - 50 Position Interface Module Terminal Block

Part Overview

The Phoenix Contact 2959641 is a 50-position interface module terminal block designed for screw connection to D-Sub female connectors. This component provides the process-side connection interface for D-Sub applications requiring 12-24 AWG wire gauge compatibility. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this series is no longer available through standard distribution channels.

Substiute Parts

2959641

Phoenix ContactIn Stock: 7712959641 Datasheet

Current PartRFQ

8019920000

WeidmüllerIn Stock: 8428019920000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 2959641 is determined by the following critical parameters:

• Position Count: 50-position configuration is mandatory for direct substitution
• Connection Type: Screw connection on process side and D-Sub female on control side
• Wire Gauge Compatibility: Minimum 12 AWG support required; extended range (12-26 AWG) provides broader compatibility
• Electrical Ratings: Voltage and current ratings must meet or exceed the original specification
• Connector Interface: D-Sub female with jackscrew socket retention
• Compliance: RoHS compliance status must be maintained

The Weidmüller 8019920000 qualifies as a functional substitute based on these parameters. Both components share the same 50-position configuration, screw-to-D-Sub female interface architecture, and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 8019920000 serves as the primary substitute for the obsolete Phoenix Contact 2959641. Both components maintain RoHS compliance and share identical core interface specifications: 50-position configuration, screw-to-D-Sub female architecture, and jackscrew socket retention.

The Weidmüller part offers extended wire gauge support (12-26 AWG versus 12-24 AWG), accommodating a broader range of conductor sizes. The current rating differential (1.5 A versus 2.5 A per contact) must be evaluated against application requirements. The Weidmüller component's active product status ensures ongoing availability and supply chain continuity.

The operating temperature range of the Weidmüller part (0°C ~ 55°C) is slightly broader at the upper limit, while the Phoenix Contact part extends lower to -10°C. Application environment specifications should guide selection when temperature extremes are critical.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 8019920000 directly replace the Phoenix Contact 2959641 in existing installations?

A: Direct mechanical and electrical substitution is possible based on matching 50-position configuration and D-Sub female interface. The current rating difference (1.5 A versus 2.5 A per contact) requires verification against circuit load specifications. Wire gauge compatibility is maintained across the substitution range.

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

A: The Weidmüller part accommodates smaller conductor sizes (26 AWG) in addition to the original range. This provides flexibility for applications using finer gauge wiring. The original 12-24 AWG range remains fully supported.

Q: How do the voltage ratings compare between these components?

A: The Phoenix Contact part is rated for 125V. The Weidmüller part specifies 125VAC and 150VDC, providing dual-voltage specification clarity. Both components are suitable for 125V applications.

Q: What is the impact of the current rating difference on component selection?

A: The Phoenix Contact part supports 2.5 A per contact; the Weidmüller part supports 1.5 A per contact. Applications requiring the full 2.5 A per contact capacity must verify that the Weidmüller part meets load requirements. Lower-current applications are unaffected by this difference.

Q: Are both components RoHS compliant?

A: Yes. Both the Phoenix Contact 2959641 and Weidmüller 8019920000 are RoHS compliant, maintaining regulatory compliance across the substitution.

Q: What is the product status significance?

A: The Phoenix Contact part is obsolete, indicating discontinued manufacturing and limited availability. The Weidmüller part maintains active status, ensuring continued supply chain access and technical support availability.