CMA2450-10 Equivalent & Substitute Parts

Part Overview

The CMA2450-10 is a solid-state relay (SSR) manufactured by Sensata-Crydom, configured as a single-pole single-throw normally-open (SPST-NO) device rated for 50A load current with input voltage range of 90–140VAC and load voltage range of 24–280VAC. The device features a hockey puck form factor with screw terminal connections and is classified as active product status with RoHS compliance. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in applications where the main part becomes unavailable or inventory constraints require alternative sourcing.

Substiute Parts

CMA2450-10

Sensata-CrydomIn Stock: 912CMA2450-10 Datasheet

Current PartRFQ

CWA2450-10

Sensata-CrydomIn Stock: 1251CWA2450-10 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CWA2450-10 qualifies as a manufacturer-recommended substitute for the CMA2450-10 based on the following alignment of critical electrical and mechanical parameters:

• Circuit configuration: Both devices are SPST-NO (1 Form A)
• Output type: Both are AC-rated
• Load current rating: Both are rated for 50A
• Load voltage range: Both support 24V–280V
• Mounting type: Both are chassis mount
• Termination style: Both use screw terminals
• Package form factor: Both use hockey puck configuration
• Regulatory compliance: Both are RoHS compliant

The primary difference is the input voltage range: CMA2450-10 accepts 90–140VAC, while CWA2450-10 accepts 90–280VAC. This expanded input range in the substitute part does not restrict its use in applications designed for the original part's narrower input specification.

Parameter Comparison

Engineering Selection Recommendations

Both the CMA2450-10 and CWA2450-10 maintain active product status with full RoHS compliance and identical regulatory classifications (ECCN: EAR99; HTSUS: 8536.49.0080). Selection between these parts should be based on application requirements and inventory availability. The CWA2450-10 offers a broader input voltage acceptance range (90–280VAC versus 90–140VAC), making it suitable for applications requiring extended input voltage tolerance. Both devices are manufactured by Sensata-Crydom and share identical load current, load voltage, circuit topology, and mechanical form factor specifications, ensuring functional equivalence in standard 50A AC switching applications.

Frequently Asked Questions (FAQ)

Q: Can the CWA2450-10 be used as a direct replacement for the CMA2450-10?

A: Yes. Both devices share identical circuit configuration (SPST-NO), load current rating (50A), load voltage range (24–280V), mounting type (chassis mount), termination style (screw terminal), and package form factor (hockey puck). The CWA2450-10 features an expanded input voltage range that does not restrict its application in circuits designed for the CMA2450-10's narrower input specification.

Q: What is the primary difference between these two parts?

A: The input voltage range differs. The CMA2450-10 accepts 90–140VAC, while the CWA2450-10 accepts 90–280VAC. All other electrical and mechanical parameters are equivalent.

Q: Are both parts RoHS compliant?

A: Yes. Both the CMA2450-10 and CWA2450-10 are RoHS compliant and carry identical regulatory classifications.

Q: Do these parts use the same termination method?

A: Yes. Both devices use screw terminal connections and are configured for chassis mount installation in the hockey puck package form factor.

Q: Which part should I select for new designs?

A: Selection should be based on application input voltage requirements and current inventory availability. Both parts are active products from Sensata-Crydom. The CWA2450-10's broader input voltage range may provide additional design flexibility for applications with variable input supply conditions.