Phoenix Contact 2980856 SSR Relay SPST-NO 1A 12-300V Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2980856 is a solid-state relay (SSR) module configured as SPST-NO (1 Form A) with a 1A load current capacity and input voltage of 110VDC. The module operates across a load voltage range of 12V to 300V and features spring terminal connections for DIN rail mounting. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations. The substitute part maintains identical electrical performance while offering updated product status and alternative termination options.

Substiute Parts

2980856

Phoenix ContactIn Stock: 10172980856 Datasheet

Current PartRFQ

2900385

Phoenix ContactIn Stock: 8772900385 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 2980856 is determined by strict equivalence across the following critical parameters:

• Circuit configuration must remain SPST-NO (1 Form A)
• Output type must be DC
• Input voltage must be 110VDC
• Load voltage range must span 12V to 300V
• Load current rating must be 1A
• Mounting type must be DIN Rail
• Package type must be Module
• RoHS compliance status must be maintained

The Phoenix Contact 2900385 satisfies all substitution criteria. Differences in termination style (spring terminal versus screw terminal) and product series designation (PLC versus PLC-OPT) do not affect electrical equivalence but represent design evolution and packaging variations within the same functional class.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2900385 is the direct functional equivalent for the obsolete 2980856. Both parts maintain identical electrical specifications across all critical parameters: SPST-NO circuit configuration, 110VDC input, 12V–300V load voltage range, and 1A load current capacity.

The primary distinction is product status: the 2980856 is obsolete while the 2900385 is active. For new designs and ongoing system support, the 2900385 is the appropriate selection. Both parts carry RoHS compliance certification and equivalent moisture sensitivity ratings, ensuring regulatory and environmental consistency.

The termination style difference (spring terminal on 2980856 versus screw terminal on 2900385) represents a design variation that may require mechanical interface adjustment during installation but does not affect electrical performance or functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2900385 directly replace the 2980856 in existing installations?

A: Electrical replacement is direct and complete. The 2900385 maintains identical voltage ratings, current capacity, and circuit configuration. Installation may require mechanical adjustment due to termination style differences (screw terminal versus spring terminal), but electrical functionality is fully equivalent.

Q: What is the significance of the series designation change from PLC to PLC-OPT?

A: The series designation reflects product line evolution within Phoenix Contact's solid-state relay portfolio. Both designations indicate DIN rail-mounted modules within the same functional class. The change does not affect electrical performance or substitution eligibility.

Q: Why is the 2980856 classified as obsolete?

A: Obsolete status indicates the part is no longer in active production. The 2900385 represents the current-generation equivalent and is the recommended selection for new applications and system replacements.

Q: Are there any compliance or certification differences between these parts?

A: Both parts carry identical RoHS compliance status and moisture sensitivity ratings (MSL 1 – Unlimited). Regulatory and environmental compliance is maintained across the substitution.

Q: Does the packaging difference (bulk for 2900385 versus standard for 2980856) affect technical compatibility?

A: Packaging designation refers to order quantity and supply format, not component functionality. Technical compatibility and electrical performance remain identical regardless of packaging configuration.