PSR-SPP-24DC/MXF3/4X1/2X2/B Equivalent & Substitute Parts

Part Overview

The PSR-SPP-24DC/MXF3/4X1/2X2/B is a 24VDC DIN rail-mounted relay manufactured by Phoenix Contact, configured as a 4PST-NO (4 Form A) switching device with 6A contact rating. This component is classified as obsolete, making identification of functionally compatible alternatives necessary for ongoing system maintenance and new design implementations where equivalent performance is required.

Substiute Parts

2903258

Phoenix ContactIn Stock: 6702903258 Datasheet

Current PartRFQ

1104972

Phoenix ContactIn Stock: 7541104972 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PSR-SPP-24DC/MXF3/4X1/2X2/B is determined by the following critical parameters:

• Coil voltage matching (24VDC)
• DIN rail mounting compatibility
• Contact form and switching capability
• Contact current rating capacity
• Spring terminal termination style
• Operating temperature range compatibility
• Diode and lighted indicator features
• RoHS and ECCN compliance alignment

The identified substitute part 1104972 is a Phoenix Contact PSR series module with active product status. However, this substitute exhibits significant parameter deviations that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 1104972 shares common platform characteristics with the main part, including 24VDC coil voltage, DIN rail mounting, spring terminal termination, and integrated diode with lighted indicator features. Both components maintain EAR99 export classification and comply with RoHS standards.

However, critical parameter differences exist:

• Contact form reduction from 4PST-NO to 3PST-NO (one fewer switching pole)
• Contact current rating reduction from 6A to 1.6A
• Switching voltage limitation to 24VDC nominal versus 250VAC/250VDC maximum capability
• Coil current and power consumption reduction

The substitute part 1104972 is suitable only for applications where the reduced contact count, lower current capacity, and restricted switching voltage range are compatible with system requirements. The active product status of 1104972 provides supply chain continuity advantages over the obsolete main part.

Frequently Asked Questions (FAQ)

Q: Can part 1104972 directly replace PSR-SPP-24DC/MXF3/4X1/2X2/B in all applications?

A: No. The substitute part has reduced contact form (3PST-NO versus 4PST-NO), lower contact current rating (1.6A versus 6A), and limited switching voltage (24VDC nominal versus 250VAC/250VDC maximum). Substitution is valid only when application requirements align with these reduced specifications.

Q: What are the key compatibility criteria for substitution?

A: Both parts share 24VDC coil voltage, DIN rail mounting, spring terminal termination, and integrated features (diode, lighted indicator). Substitution requires that the application can operate with fewer switching poles, lower current capacity, and restricted switching voltage range.

Q: How do the operating temperature ranges compare?

A: The main part operates from -20°C to 45°C, while the substitute operates from -10°C to 55°C. Applications requiring operation below -10°C require the main part specifications.

Q: Are there packaging differences between these parts?

A: The main part packaging is listed as "-" (unspecified), while the substitute is packaged in a Box. Verify packaging requirements for your procurement and storage procedures.

Q: Do both parts meet current compliance standards?

A: The main part is RoHS Compliant. The substitute is ROHS3 Compliant, representing a more recent compliance standard. Both maintain EAR99 export classification.