Phoenix Contact 2834708 General Purpose Relay DPDT 120VAC - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2834708 is a general purpose relay with DPDT (2 Form C) contact configuration, rated for 10A at 120VAC coil voltage. This component is classified as obsolete, making identification of suitable substitute parts essential for system maintenance and component procurement. The relay features a DIN rail mounting type, lighted indicator, socket inclusion, and varistor protection with spring terminal termination.

Substiute Parts

2834708

Phoenix ContactIn Stock: 8632834708 Datasheet

Current PartRFQ

2903311

Phoenix ContactIn Stock: 11122903311 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 2834708 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Coil voltage: 120VAC (exact match required)
• Contact form: DPDT (2 Form C) configuration (exact match required)
• Mounting type: DIN Rail (exact match required)
• Termination style: Spring Terminal (exact match required)
• Coil type: Non Latching (exact match required)

Secondary Compatibility Criteria (allowable variance):

• Contact rating current: Minimum 10A required; higher ratings acceptable
• Switching voltage: Must support at least 250VAC and 125VDC
• Operating temperature range: Must encompass or exceed -25°C ~ 60°C
• Contact material: Silver or Silver Nickel acceptable for general purpose applications
• Coil current: Variance acceptable within circuit design parameters

The Phoenix Contact 2903311 meets all primary compatibility criteria and maintains functional equivalence within the specified secondary parameters.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2903311 is an active production substitute for the obsolete 2834708. Both components share identical primary specifications: 120VAC coil voltage, DPDT contact configuration, DIN rail mounting, and spring terminal termination.

Key Considerations:

The 2903311 has a contact current rating of 8.5A compared to the 2834708's 10A rating. Applications requiring the full 10A contact capacity must evaluate whether the 8.5A rating is sufficient for the intended circuit. The substitute exhibits higher coil current consumption (13mA versus 9mA), which may impact control circuit design.

Operating temperature ranges differ: the 2903311 supports -40°C to 50°C versus the 2834708's -25°C to 60°C. Applications operating above 50°C or below -40°C require verification against the 2903311's specifications.

Both components maintain RoHS compliance (ROHS3 for the substitute) and include identical features: lighted indicator, socket inclusion, and varistor protection. The 2903311's active product status ensures ongoing availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2903311 directly replace the 2834708 in existing installations?

A: Direct mechanical and electrical replacement is possible for applications where the 8.5A contact rating is adequate. The identical DIN rail mounting, spring terminal configuration, and DPDT contact form ensure physical compatibility. Verify that circuit current requirements do not exceed 8.5A and that operating temperatures remain within -40°C to 50°C.

Q: What is the impact of the lower contact current rating on substitution?

A: The 2903311 is rated for 8.5A versus the 2834708's 10A. If the application circuit draws current at or near 10A, the substitute may not provide adequate margin. Review circuit schematics to confirm maximum contact current requirements.

Q: How does the higher coil current of the 2903311 affect circuit design?

A: The 2903311 requires 13mA coil current compared to 9mA for the 2834708. Control circuits must supply sufficient current to the relay coil. Verify that the control circuit power supply and switching components can accommodate the additional 4mA requirement.

Q: Are there packaging differences between these parts?

A: The 2834708 is listed with "-" packaging designation, while the 2903311 is supplied in Bulk packaging. Both components are DIN rail mounted and include socket inclusion, so packaging designation reflects distribution format rather than component form factor.

Q: What compliance certifications apply to both parts?

A: The 2834708 holds RoHS Compliant certification. The 2903311 meets ROHS3 Compliant and REACH Unaffected standards, providing enhanced regulatory compliance for current procurement requirements.

Q: Why is the 2834708 classified as obsolete?

A: Obsolete status indicates the component is no longer in active production. The Phoenix Contact 2903311 represents the current production equivalent, ensuring access to functionally compatible components through active supply channels.