Phoenix Contact 2788210 Terminal Block Connector - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2788210 is a 4-position disconnect terminal block connector rated for 12-24 AWG wire gauges (0.2-4mm²). This component features a knife-type disconnect mechanism with feed-through configuration and is constructed from polyamide (PA) nylon material with UL94 V-0 flammability rating. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and component procurement.

Substiute Parts

2788210

Phoenix ContactIn Stock: 10102788210 Datasheet

Current PartRFQ

2906846

Phoenix ContactIn Stock: 8032906846 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Phoenix Contact 2906846 is identified as a substitute part for the 2788210. However, substitution between these components requires careful evaluation based on application requirements.

The 2788210 is a terminal block connector with disconnect functionality, while the 2906846 is classified as a transient voltage suppressor (TVS) module. These components serve fundamentally different functions within electrical systems:

2788210 Primary Function: Connection and disconnection of power distribution circuits with mechanical switching capability.

2906846 Primary Function: Transient voltage suppression and circuit protection against overvoltage events.

Substitution is valid only when the application requirement shifts from primary switching/disconnection to circuit protection, or when both functions are required in the system design. The following parameters establish the basis for this substitution relationship:

• RoHS Compliance: Both components are RoHS compliant
• Regulatory Compliance: Both carry UL/CSA approvals
• Operating Environment: Both rated for industrial temperature ranges
• Mounting Compatibility: Both support standard industrial installation methods

Parameter Comparison

Engineering Selection Recommendations

Selection between the 2788210 and 2906846 must be determined by the specific circuit protection and switching requirements of the application:

Use 2788210 (or equivalent terminal block connector) when: The application requires mechanical disconnection capability, feed-through terminal configuration, and screw-type termination for 12-24 AWG conductors. The obsolete status necessitates sourcing from inventory or identifying active-status terminal block alternatives with identical mechanical and electrical specifications.

Use 2906846 when: The application requires transient voltage suppression with 75VAC continuous operating voltage rating, 5kA discharge current capability, and 1kV protection level. This component addresses overvoltage protection requirements that the 2788210 does not provide.

Compliance Basis: Both components maintain RoHS compliance and EAR99 export classification. The 2906846 carries explicit UL/CSA approvals suitable for North American industrial applications. Component selection must align with system voltage ratings, current requirements, and regulatory certifications mandated by the end application.

Frequently Asked Questions (FAQ)

Q: Can the 2906846 directly replace the 2788210 in existing installations?

A: Direct replacement is not recommended without circuit redesign evaluation. The 2788210 provides mechanical switching and disconnection functionality, while the 2906846 provides transient voltage suppression. These serve different circuit functions. Replacement is valid only when the application requirement includes overvoltage protection at the specified voltage and current ratings.

Q: What is the significance of the 2788210 being classified as obsolete?

A: Obsolete status indicates the manufacturer no longer produces this component. Existing inventory may be available from authorized distributors, but long-term procurement cannot be guaranteed. Alternative active-status terminal block connectors with equivalent specifications (4-position, knife-type disconnect, 12-24 AWG, screw termination) should be evaluated for new designs or when inventory is depleted.

Q: Are there mechanical compatibility considerations between these parts?

A: Yes. The 2788210 features a 6.2mm terminal width and 8mm stripping length specific to its screw-termination design. The 2906846 is a DIN rail-mounted module. These components have different mounting and installation requirements and cannot be physically interchanged in the same circuit location.

Q: Do both components meet the same regulatory standards?

A: Both components are RoHS compliant and carry EAR99 export classification. The 2906846 explicitly lists cCSAus, CSA, and UL approvals. Regulatory compliance verification for the 2788210 should be confirmed through the manufacturer's technical documentation, as approval agency information is not provided in the component specification.

Q: What wire gauge compatibility exists between these components?

A: The 2788210 is rated for 12-24 AWG (0.2-4mm²) wire gauges with screw termination. The 2906846 is a module-form component without direct wire termination capability. Wire gauge compatibility is not a substitution criterion between these components due to their different functional classifications.