CSW2490P Solid State Relay SPST-NO 90A 24-280V Equivalent & Substitute Parts

Part Overview

The CSW2490P is a solid state relay (SSR) manufactured by Sensata-Crydom, configured as a single-pole single-throw normally open (SPST-NO) device rated for 90A load current at 24V to 280V AC output. The part operates with 3V to 32VDC input control voltage and features zero-cross switching for AC loads. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations.

Substiute Parts

CSW2490P

Sensata-CrydomIn Stock: 750CSW2490P Datasheet

Current PartRFQ

D2490P

Sensata TechnologiesIn Stock: 1063D2490P Datasheet

DirectRFQ

84137140N

CrouzetIn Stock: 69284137140N Datasheet

MFR RecommendedRFQ

ASR-SN240D100ZW-LM

Altran Magnetics, LLCIn Stock: 817ASR-SN240D100ZW-LM Datasheet

MFR RecommendedRFQ

D2490P

Sensata TechnologiesIn Stock: 1063D2490P Datasheet

DirectRFQ

84137140N

CrouzetIn Stock: 69284137140N Datasheet

MFR RecommendedRFQ

ASR-SN240D100ZW-LM

Altran Magnetics, LLCIn Stock: 817ASR-SN240D100ZW-LM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSW2490P is determined by the following critical parameters: circuit configuration (SPST-NO), output type (AC with zero-cross switching), input voltage range (3 ~ 32VDC), load voltage range (24 ~ 280V), load current rating (minimum 90A), mounting type (chassis mount), termination style (screw terminal), and package form factor (hockey puck or equivalent module).

The substitute parts are grouped into two categories:

Direct Equivalent (Same Specifications): D2490P maintains identical electrical specifications and package form, differing only in product status (active) and manufacturer designation.

Functional Equivalents (Enhanced Specifications): 84137140N and ASR-SN240D100ZW-LM provide equal or superior performance within the substitution parameters. These parts exceed the 90A requirement (rated 100A) and maintain compatible voltage ranges, though with minor variations in load voltage limits and package form factors.

Parameter Comparison

Engineering Selection Recommendations

D2490P is the primary substitute for direct replacement applications. This part is manufactured by Sensata Technologies (parent company of Crydom) and maintains identical electrical and mechanical specifications to the CSW2490P. The active product status ensures long-term availability and supply chain continuity.

84137140N (Crouzet GN series) is suitable for applications where the 100A current rating provides design margin above the 90A requirement. The load voltage range (20V ~ 265V) covers the standard operating window of the CSW2490P. RoHS compliance is confirmed. The hockey puck package maintains mechanical compatibility with existing mounting infrastructure.

ASR-SN240D100ZW-LM (Altran Magnetics SN series) provides equivalent electrical performance with enhanced current rating (100A) and maintains the full 24V ~ 280V load voltage range. ROHS3 compliance indicates current regulatory alignment. The module package form factor differs from the hockey puck, requiring mechanical redesign of mounting interfaces.

All three substitute parts maintain the required SPST-NO circuit configuration, AC zero-cross output type, and screw terminal termination. Selection should prioritize D2490P for direct mechanical and electrical compatibility, with 84137140N or ASR-SN240D100ZW-LM considered when enhanced current capacity or specific compliance certifications are required.

Frequently Asked Questions (FAQ)

Q: Can D2490P be used as a direct replacement for CSW2490P? A: Yes. D2490P maintains identical electrical specifications (90A at 24V ~ 280V, 3 ~ 32VDC input), circuit configuration (SPST-NO), output type (AC zero-cross), termination style (screw terminal), and package form (hockey puck). The primary difference is product status (active vs. obsolete) and manufacturer designation.

Q: What are the key differences between 84137140N and the original CSW2490P? A: 84137140N provides a higher current rating (100A vs. 90A) and operates across a slightly narrower load voltage range (20V ~ 265V vs. 24V ~ 280V). The input voltage range (4 ~ 32VDC) has a 1V higher minimum threshold. All other parameters—circuit configuration, output type, mounting, termination, and package form—remain compatible.

Q: Is ASR-SN240D100ZW-LM mechanically compatible with existing CSW2490P installations? A: ASR-SN240D100ZW-LM maintains electrical compatibility but differs in package form (module vs. hockey puck). Mechanical redesign of mounting interfaces is required. Electrical specifications remain compatible: 100A current rating, 24V ~ 280V load voltage, 3 ~ 32VDC input, SPST-NO configuration, and screw terminal termination.

Q: Which substitute part has the best regulatory compliance for new designs? A: ASR-SN240D100ZW-LM carries ROHS3 compliance, representing the most current regulatory standard. 84137140N provides RoHS compliance. D2490P compliance status is not specified in available documentation. For applications requiring current regulatory alignment, ASR-SN240D100ZW-LM is the preferred selection.

Q: Can these substitutes handle the full 90A load current specified for the CSW2490P? A: Yes. All three substitute parts are rated for 90A or higher: D2490P (90A), 84137140N (100A), and ASR-SN240D100ZW-LM (100A). Each part meets or exceeds the original specification.

Q: What is the minimum input voltage for each substitute part? A: D2490P and ASR-SN240D100ZW-LM operate from 3VDC minimum input. 84137140N requires a 4VDC minimum input. Applications operating below 4VDC should use D2490P or ASR-SN240D100ZW-LM.