Phoenix Contact 2794961 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2794961 is a feed-through terminal block connector with 3 positions, designed for wire gauges 10-26 AWG (0.2-4mm²). This component features isolated configuration with screw termination, rated for 30A at 48V UL, and includes integrated varistor protection. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system maintenance and new designs requiring similar electrical and mechanical characteristics.

Substiute Parts

2794961

Phoenix ContactIn Stock: 9312794961 Datasheet

Current PartRFQ

2906838

Phoenix ContactIn Stock: 9192906838 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Phoenix Contact 2794961 terminal block incorporates transient voltage suppression through integrated varistor technology. The identified substitute, Phoenix Contact 2906838, is a dedicated transient voltage suppressor module from the TTC series designed for circuit protection applications.

Substitution logic is based on the following critical parameters:

• Voltage Protection Capability: The main part operates at 48V UL with integrated varistor protection. The substitute (2906838) provides continuous operating voltage up to 60VDC with protection level specifications suitable for similar voltage ranges.
• Current Handling: The main part supports 30A continuous current. The substitute provides 2kA nominal discharge current (8/20µS), indicating robust transient suppression capacity.
• Mounting and Integration: Both components are designed for industrial control applications with DIN Rail mounting compatibility in the substitute, enabling integration into modular protection schemes.
• Compliance and Certification: Both parts maintain RoHS compliance and are certified by relevant approval agencies (UL, CSA).

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2906838 represents an active product alternative for applications requiring transient voltage suppression in the 48-60V DC range. Selection should be based on:

• Product Status: The 2906838 maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete 2794961.
• Certification Alignment: Both components meet RoHS compliance requirements. The 2906838 carries explicit CSA and UL certifications suitable for industrial control environments.
• Voltage and Current Specifications: The 60VDC MCOV rating of the 2906838 accommodates the 48V operating requirement of the original design with adequate margin. The 2kA discharge current specification indicates capability for transient suppression in typical industrial switching applications.
• Integration Approach: The 2906838 employs DIN Rail mounting, requiring system-level integration changes from the screw-terminal approach of the 2794961. This substitution is appropriate for modular protection architectures.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2906838 directly replace the 2794961 in existing installations?

A: Direct mechanical replacement is not possible due to different mounting methods (DIN Rail vs. screw termination). However, the 2906838 provides equivalent transient voltage suppression functionality for 48-60V DC applications. System redesign may be required to accommodate the alternative mounting approach.

Q: What are the key electrical compatibility factors?

A: The primary compatibility factors are voltage rating (48V operation supported by 60VDC MCOV rating) and transient suppression capability (2kA discharge current). Both components are RoHS compliant and certified for industrial use.

Q: Does the 2906838 require additional components for integration?

A: The 2906838 is a dedicated transient voltage suppressor module. Integration requirements depend on the specific circuit architecture and whether the system uses modular DIN Rail-based protection schemes or traditional screw-terminal configurations.

Q: Are there packaging or inventory considerations?

A: The 2794961 is available in limited quantities (917 Pcs) as obsolete stock. The 2906838 is in active production (874 Pcs available) with ongoing supply availability, making it suitable for new designs and long-term system support.

Q: What compliance standards apply to both components?

A: Both components are RoHS compliant. The 2906838 carries explicit UL and CSA certifications. Compliance verification should be performed against specific application standards and regional requirements.