CWD2490 Solid State Relay SPST-NO 90A 24-280V Equivalent & Substitute Parts

Part Overview

The CWD2490 is an active Sensata-Crydom solid state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 90A load current at 24-280V AC output with zero-cross switching. This chassis-mount hockey puck relay operates on 3-32VDC input and features screw terminal connections. Substitute parts are identified when inventory constraints, lead time requirements, or application-specific certifications necessitate alternative component selection while maintaining functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

CWD2490

Sensata-CrydomIn Stock: 1166CWD2490 Datasheet

Current PartRFQ

84134040

Sensata-CrydomIn Stock: 112884134040 Datasheet

MFR RecommendedRFQ

84137140N

CrouzetIn Stock: 69284137140N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CWD2490 is determined by the following critical parameters:

• Circuit configuration must remain SPST-NO (1 Form A)
• Output type must be AC with zero-cross switching capability
• Input voltage range must accommodate 3-32VDC operation
• Load voltage range must span minimum 24V to maximum 280V
• Load current rating must equal or exceed 90A
• Package must be hockey puck form factor
• Mounting must be chassis mount with screw terminal connections
• RoHS compliance status must be maintained

The identified substitute parts meet these criteria while potentially offering different current ratings, input voltage tolerances, or manufacturer sourcing options.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain active product status and RoHS compliance, ensuring regulatory alignment with the CWD2490. Part 84134040 (Sensata-Crydom GN series) provides identical input and load voltage specifications with a 10A current rating increase to 100A, maintaining the same manufacturer ecosystem. Part 84137140N (Crouzet GN series) offers 100A current capacity with a minimum input voltage of 4VDC (versus 3VDC) and load voltage range of 20-265V, representing a cross-manufacturer alternative with slightly reduced voltage envelope but equivalent functional performance for standard industrial applications.

Selection between these substitutes depends on application voltage requirements, manufacturer preference, and inventory availability. The CWD2490 remains the primary specification; substitutes are valid only when the primary part is unavailable.

Frequently Asked Questions (FAQ)

Q: Can 84134040 directly replace CWD2490 in all applications? A: Yes, within the specified electrical parameters. The 84134040 maintains identical input voltage (3-32VDC) and load voltage (24-280V) ranges with a higher current rating (100A vs. 90A), making it functionally compatible for applications requiring up to 90A load current.

Q: What is the key difference between 84137140N and the other substitutes? A: The 84137140N is manufactured by Crouzet rather than Sensata-Crydom and has a minimum input voltage of 4VDC instead of 3VDC. The load voltage range is 20-265V versus 24-280V. These differences may affect compatibility in applications requiring operation below 4VDC input or above 265V load voltage.

Q: Are all three parts available in the same packaging? A: All three parts use hockey puck form factor with screw terminal connections and chassis mount configuration. CWD2490 and 84134040 are supplied in bulk packaging, while 84137140N is supplied in box packaging.

Q: Do all substitutes maintain RoHS compliance? A: Yes, all three parts are RoHS compliant and suitable for applications with RoHS requirements.

Q: What determines whether a part can substitute for CWD2490? A: Substitution is valid when the alternative part maintains SPST-NO circuit configuration, AC zero-cross output type, input voltage range of at least 3-32VDC, load voltage range spanning 24-280V, load current rating of 90A or greater, hockey puck package, chassis mount, screw terminal connections, and RoHS compliance.