Phoenix Contact 2903335 Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2903335 is a general purpose relay with SPDT (Single Pole Double Throw) contact configuration, designed for DIN rail mounting. This relay operates at 230VAC coil voltage with a 50mA contact rating and includes integrated features such as a lighted indicator, socket, and varistor protection. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for system maintenance and component procurement.

Substiute Parts

2903335

Phoenix ContactIn Stock: 10722903335 Datasheet

Current PartRFQ

2903327

Phoenix ContactIn Stock: 8882903327 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Phoenix Contact 2903327 is identified as a substitute for the 2903335 based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Manufacturer: Phoenix Contact
• Series: RIF
• Mounting Type: DIN Rail
• Coil Voltage: 230VAC
• Contact Rating (Current): 50 mA
• Switching Voltage: 30VAC, 36VDC - Max
• Coil Current: 6 mA
• Coil Type: Non Latching
• Operate Time: 12 ms
• Release Time: 20 ms
• Operating Temperature Range: -40°C ~ 50°C
• Contact Material: Silver Nickel (AgNi), Gold (Au)
• Termination Style: Spring Terminal

Functional Difference: The 2903327 features a DPDT (Double Pole Double Throw / 2 Form C) contact configuration, compared to the SPDT (1 Form C) configuration of the 2903335. This provides additional switching capability with two independent contact sets rather than one.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2903327 is an active product with current manufacturing status and ROHS3 compliance, providing a viable alternative to the obsolete 2903335. Both relays share identical electrical characteristics including coil voltage, contact rating, switching voltage, timing parameters, and operating temperature range.

The primary distinction is the contact configuration: the 2903327 provides DPDT functionality (two independent Form C contacts) versus the SPDT functionality (one Form C contact) of the 2903335. This expanded contact capability allows the 2903327 to perform the switching function of the 2903335 while providing additional contact sets for supplementary circuit control if required by the application.

Both parts maintain equivalent mechanical compatibility with DIN rail mounting systems and identical termination methods. The upgrade to ROHS3 compliance in the 2903327 aligns with current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2903327 directly replace the 2903335 in existing installations?

A: The 2903327 shares all critical electrical parameters with the 2903335, including coil voltage (230VAC), contact rating (50mA), switching voltage limits, timing characteristics, and operating temperature range. The DPDT contact configuration of the 2903327 encompasses the switching capability of the SPDT 2903335. Direct substitution is feasible from an electrical standpoint; however, circuit design must account for the additional contact set provided by the DPDT configuration.

Q: What is the significance of the contact form difference between SPDT and DPDT?

A: SPDT (Single Pole Double Throw) provides one independent contact set with three terminals (common, normally open, normally closed). DPDT (Double Pole Double Throw) provides two independent contact sets, each with three terminals. The 2903327 DPDT relay can perform all switching functions of the 2903335 SPDT relay while offering an additional contact set for independent circuit control.

Q: Are there packaging differences between these parts?

A: The 2903335 is specified with dash packaging notation, while the 2903327 is supplied in bulk packaging. Both parts are designed for DIN rail mounting with spring terminal connections and are compatible with standard relay socket installations.

Q: How do the compliance ratings compare?

A: The 2903335 carries RoHS Compliant certification. The 2903327 carries ROHS3 Compliant certification, representing current regulatory alignment. Both parts maintain MSL rating 1 (Unlimited moisture sensitivity level) and identical ECCN and HTSUS classifications.

Q: Are the timing and thermal characteristics identical?

A: Yes. Both relays operate with 12ms operate time and 20ms release time. The operating temperature range is identical at -40°C to 50°C for both parts. Coil current draw is 6mA for both relays.