CMD2450 Solid State Relay SPST-NO 50A 24-280V Equivalent & Substitute Parts

Part Overview

The CMD2450 is a solid state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 50A load current at 24-280V AC output. Manufactured by Sensata-Crydom in the CMD24 series, this component features a hockey puck form factor with screw terminal connections and zero-cross switching capability. The CMD2450 is classified as obsolete, making identification of active equivalent parts essential for ongoing system maintenance and new design implementations. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement capability.

Key Parameters

Parameter	Specification
Circuit Configuration	SPST-NO (1 Form A)
Load Current Rating	50 A
Load Voltage Range	24 V ~ 280 V AC
Input Voltage Range	3 ~ 32 VDC
Output Type	AC, Zero Cross
Mounting Type	Chassis Mount
Package / Case	Hockey Puck
Termination Style	Screw Terminal
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the CMD2450 is determined by strict equivalence across the following critical parameters: circuit configuration (SPST-NO), load current rating (50A), load voltage range (24-280V), input voltage range (3-32VDC), output type (AC with zero-cross switching), mounting type (chassis mount), package form factor (hockey puck), and termination style (screw terminal). All substitute parts must match these specifications without deviation. Parts are grouped into two categories: direct equivalents from Sensata-Crydom and Sensata Technologies that maintain full parameter parity, and a partial substitute from an alternative manufacturer that differs in load voltage range specification.

Parameter Comparison

Part Number	Manufacturer	Series	Product Status	Load Current	Load Voltage	Input Voltage	Output Type	Package	RoHS Status
CMD2450	Sensata-Crydom	CMD24	Obsolete	50 A	24 ~ 280 V	3 ~ 32 VDC	AC, Zero Cross	Hockey Puck	ROHS3 Compliant
84137020	Sensata-Crydom	GN	Active	50 A	24 ~ 280 V	3 ~ 32 VDC	AC, Zero Cross	Hockey Puck	ROHS3 Compliant
CWD2450	Sensata Technologies	CW24	Active	50 A	24 ~ 280 V	3 ~ 32 VDC	AC, Zero Cross	Hockey Puck	ROHS3 Compliant
D2450	Sensata-Crydom	1	Active	50 A	24 ~ 280 V	3 ~ 32 VDC	AC, Zero Cross	Hockey Puck	ROHS3 Compliant
ASR-SN240D60ZW-L	Altran Magnetics, LLC	SN	Active	60 A	24 ~ 24 V	3 ~ 32 VDC	AC, Zero Cross	Module	ROHS3 Compliant

Engineering Selection Recommendations

For direct replacement of the obsolete CMD2450, parts 84137020, CWD2450, and D2450 are fully qualified substitutes. All three maintain identical electrical ratings (50A at 24-280V), input specifications (3-32VDC), and mechanical form factor (hockey puck with screw terminals). These parts carry active product status and ROHS3 compliance certification, ensuring long-term availability and regulatory alignment.

The part ASR-SN240D60ZW-L from Altran Magnetics is not suitable as a direct substitute due to critical parameter deviations: load voltage range is restricted to 24V (versus 24-280V required), load current is rated at 60A (exceeding the 50A specification), and package form factor is module-based rather than hockey puck. This part should not be selected for CMD2450 replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the CMD2450 be replaced with any of the three Sensata-Crydom and Sensata Technologies alternatives?

A: Yes. Parts 84137020, CWD2450, and D2450 are fully equivalent substitutes. All maintain the required 50A load current, 24-280V load voltage range, 3-32VDC input specification, and hockey puck package form factor with screw terminals. Selection

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