Phoenix Contact 2834533 General Purpose Relay DPDT 24VAC - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2834533 is a general purpose relay with DPDT (Double Pole Double Throw) contact configuration, rated for 8A at 24VAC coil voltage. This relay is designed for DIN rail mounting with screw terminal connections and includes a lighted indicator and varistor protection. The product is currently obsolete, making identification of suitable substitute components essential for system maintenance and replacement applications.

Substiute Parts

2834533

Phoenix ContactIn Stock: 10132834533 Datasheet

Current PartRFQ

2903345

Phoenix ContactIn Stock: 8912903345 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 2834533 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Contact Form: DPDT (2 Form C) configuration
• Coil Voltage: 24VAC
• Mounting Type: DIN Rail
• Termination Style: Screw Terminal
• Coil Type: Non Latching

Allowable Variation Parameters:

• Contact Rating (Current): May be lower than 8A if application requirements permit
• Switching Voltage: May be lower than 250VAC/250VDC if application requirements permit
• Operating Temperature Range: May be narrower if application environment permits
• Operate/Release Time: Minor variations acceptable if within system timing tolerances

The Phoenix Contact 2903345 qualifies as a substitute based on matching all mandatory parameters. However, the contact rating is reduced to 50mA, and switching voltage is limited to 30VAC/36VDC maximum, requiring application-level verification.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2903345 is an active product with current manufacturing status, providing supply continuity for the obsolete 2834533. Both relays comply with RoHS requirements and share identical contact form, coil voltage, and mounting configuration.

Selection of the 2903345 as a substitute requires application-level assessment of the reduced contact rating (50mA versus 8A) and reduced maximum switching voltage (30VAC/36VDC versus 250VAC/250VDC). The 2903345 operates across a wider low-temperature range (-40°C versus -25°C) but has a narrower high-temperature limit (50°C versus 60°C). Release time is extended by 6ms in the substitute part.

Both parts are manufactured by Phoenix Contact and maintain identical DIN rail mounting and screw terminal termination, ensuring mechanical compatibility in existing installations.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2903345 directly replace the 2834533 in all applications?

A: Direct replacement is limited by contact rating and switching voltage specifications. The 2903345 is rated for 50mA maximum contact current compared to 8A for the 2834533, and switching voltage is limited to 30VAC/36VDC versus 250VAC/250VDC. Substitution is valid only when application load requirements fall within the 2903345 specifications.

Q: What are the key differences between these two relays?

A: The primary differences are contact rating (8A versus 50mA), maximum switching voltage (250VAC/250VDC versus 30VAC/36VDC), operating temperature range (-25°C to 60°C versus -40°C to 50°C), and release time (14ms versus 20ms). Contact form, coil voltage, mounting type, and termination style are identical.

Q: Are both relays RoHS compliant?

A: Yes. The 2834533 is RoHS Compliant, and the 2903345 is ROHS3 Compliant. Both meet current environmental compliance requirements.

Q: What is the packaging difference between these parts?

A: The 2834533 is supplied with standard packaging, while the 2903345 is supplied in bulk packaging. Both are suitable for DIN rail installation.

Q: Does the 2903345 include additional features?

A: The 2903345 includes a socket in addition to the lighted indicator and varistor protection found on the 2834533. Both relays feature non-latching coil operation.