Phoenix Contact 2826473 Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2826473 is a general purpose relay with SPST-NO (1 Form A) contact configuration, designed for 220VDC coil operation with 500 mA contact rating. This socketable relay is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, redesign, and procurement planning. The part's discontinuation necessitates evaluation of substitute components that maintain compatibility with existing circuit requirements while meeting current availability and compliance standards.

Substiute Parts

2826473

Phoenix ContactIn Stock: 10012826473 Datasheet

Current PartRFQ

2900311

Phoenix ContactIn Stock: 10112900311 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 2826473 is constrained by the following critical parameters:

Coil Voltage Compatibility: The 220VDC coil voltage is the primary selection criterion. Substitute parts must operate at or near this voltage to function within existing circuit designs without modification.

Contact Configuration: The SPST-NO (1 Form A) contact form defines the switching logic. Substitutes with different contact configurations (such as SPDT) introduce functional differences and require circuit redesign.

Contact Rating: The 500 mA current rating establishes the maximum load capacity. Substitutes with lower ratings (such as 50 mA) are not electrically equivalent and cannot handle the same load conditions.

Mounting Type: The socketable mounting type is specific to the original design. Substitutes with different mounting methods (such as DIN Rail) require mechanical redesign and are not direct replacements.

Coil Type: Non-latching operation ensures the relay returns to its de-energized state when power is removed. This functional characteristic must be preserved in substitutes.

Based on these constraints, the provided substitute part (Phoenix Contact 2900311) does not meet the critical substitution criteria due to differences in coil voltage (230VAC/DC vs. 220VDC), contact form (SPDT vs. SPST-NO), contact rating (50 mA vs. 500 mA), and mounting type (DIN Rail vs. Socketable).

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2900311 is not a direct electrical or mechanical substitute for the 2826473 due to fundamental incompatibilities in contact form, contact rating, mounting type, and coil voltage specification.

For applications requiring the 2826473, component selection must prioritize:

Electrical Equivalence: Substitute relays must maintain the SPST-NO contact configuration and 500 mA contact rating to preserve circuit function and load capacity.

Coil Voltage Matching: The 220VDC coil voltage is non-negotiable without circuit redesign. Substitutes operating at different voltages (such as 230VAC/DC) will not function correctly in existing designs.

Mechanical Compatibility: The socketable mounting type is integral to the original design. DIN Rail or other mounting methods require mechanical redesign and are not considered direct substitutes.

Compliance Status: Both the main part and the listed substitute maintain RoHS compliance and MSL 1 rating, meeting current regulatory requirements.

Given the obsolete status of the 2826473 and the lack of true electrical equivalents in the provided substitute list, procurement should evaluate Phoenix Contact's current relay portfolio for parts matching all critical parameters, or consider circuit redesign to accommodate available alternatives.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2900311 replace the 2826473 in my application?

A: No. The 2900311 differs in four critical parameters: contact form (SPDT vs. SPST-NO), contact rating (50 mA vs. 500 mA), mounting type (DIN Rail vs. Socketable), and coil voltage class (230VAC/DC vs. 220VDC). These differences make it electrically and mechanically incompatible with the original design.

Q: What parameters must a substitute relay match to be considered equivalent to the 2826473?

A: A true substitute must maintain: SPST-NO contact configuration, 500 mA contact rating, 220VDC coil voltage, socketable mounting type, and non-latching coil operation. Deviations in any of these parameters require circuit or mechanical redesign.

Q: Why is the 2826473 listed as obsolete?

A: The product status reflects Phoenix Contact's discontinuation of this model. Obsolete status indicates the part is no longer in active production and may have limited availability through remaining inventory channels.

Q: Can I use a relay with a lower contact rating than the 2826473?

A: No. The 500 mA contact rating defines the maximum current the relay contacts can safely switch. Using a relay with a lower rating (such as 50 mA) risks contact failure and circuit malfunction under normal operating conditions.

Q: Does the 2900311 have better temperature performance than the 2826473?

A: The 2900311 operates across a wider temperature range (-40°C ~ 60°C vs. -20°C ~ 50°C). However, this advantage does not offset the fundamental electrical and mechanical incompatibilities that prevent direct substitution.

Q: Are both relays RoHS compliant?

A: Yes. Both the 2826473 and 2900311 are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, meeting current regulatory and environmental standards.