CWA4810P Solid State Relay - Equivalent & Substitute Parts

Part Overview

The CWA4810P is an active Sensata-Crydom solid state relay (SSR) featuring SPST-NO (1 Form A) switching configuration in a hockey puck package. This component is designed for AC load switching applications with zero-cross detection, operating across a wide input voltage range of 90–280VAC and supporting loads from 48V to 660V at 10A capacity. The part is RoHS compliant and currently in active production status with 716 units available in inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Substiute Parts

CWA4810P

Sensata-CrydomIn Stock: 772CWA4810P Datasheet

Current PartRFQ

84137011N

CrouzetIn Stock: 111684137011N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 84137011N (Crouzet GN series) is identified based on the following electrical and mechanical compatibility criteria:

• Circuit Configuration: Both parts feature SPST-NO (1 Form A) switching topology
• Output Type: Both employ AC switching with zero-cross detection
• Package / Case: Both use hockey puck form factor
• Mounting Type: Both support chassis mount installation
• Termination Style: Both utilize screw terminal connections
• RoHS Compliance: Both meet RoHS requirements

The 84137011N operates within different voltage and current specifications (20–265VAC input, 24–280V load, 25A capacity) and originates from a different manufacturer (Crouzet). Substitution is valid only when the application requirements fall within the overlapping parameter ranges of both components.

Parameter Comparison

Engineering Selection Recommendations

Both the CWA4810P and 84137011N are active production components with RoHS compliance and equivalent mechanical packaging. Selection between these parts depends on application-specific voltage and current requirements:

• CWA4810P is suitable for applications requiring input voltages from 90–280VAC and load voltages up to 660V at 10A
• 84137011N is suitable for applications requiring input voltages from 20–265VAC and load voltages up to 280V at 25A

The overlapping input voltage range (90–265VAC) and load voltage range (48–280V) permits substitution only when both the input and load voltage requirements of the application fall within these common boundaries. The 84137011N provides higher current capacity (25A vs. 10A), while the CWA4810P supports higher load voltages (up to 660V vs. 280V).

Frequently Asked Questions (FAQ)

Q: Can the 84137011N replace the CWA4810P in all applications?

A: No. Substitution is valid only when the application's input voltage requirement falls within 90–265VAC and the load voltage requirement does not exceed 280V. Applications requiring load voltages above 280V or input voltages below 90VAC require the CWA4810P.

Q: What is the significance of the hockey puck package?

A: The hockey puck package is a standardized form factor for solid state relays that ensures mechanical compatibility for chassis mount installations. Both parts use this package, enabling physical interchangeability in mounting applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the CWA4810P and 84137011N meet RoHS compliance requirements and are suitable for applications subject to RoHS regulations.

Q: How do the current ratings affect substitution?

A: The CWA4810P is rated for 10A, while the 84137011N is rated for 25A. An application designed for 10A operation can use the 84137011N without current-related concerns. However, applications requiring the full 10A capacity of the CWA4810P should verify that the 84137011N's higher rating does not introduce unintended operational characteristics in the specific circuit design.

Q: What is zero-cross detection?

A: Zero-cross detection is a switching feature that synchronizes relay activation with the zero-voltage point of the AC waveform, reducing electromagnetic interference and switching stress on connected loads.