CKRA4830 Solid State Relay - Equivalent & Substitute Parts

Part Overview

The CKRA4830 is a Solid State SPST-NO (1 Form A) relay manufactured by Sensata-Crydom, designed for AC load switching applications with integrated heat sink and DIN Rail mounting. This component operates with input voltage range of 90–280VAC and supports load voltages from 48V to 530V at 30A capacity with zero-cross switching capability.

The CKRA4830 maintains Active product status with full RoHS3 compliance and REACH compliance. Substitute parts are necessary when addressing specific application requirements such as extended load voltage ranges, alternative mounting configurations, or supply chain availability constraints.

Key Parameters

Parameter	CKRA4830
Manufacturer	Sensata-Crydom
Series	CKR48
Circuit Configuration	SPST-NO (1 Form A)
Output Type	AC, Zero Cross
Voltage - Input	90–280VAC
Voltage - Load	48–530V
Load Current	30A
Mounting Type	DIN Rail
Termination Style	Screw Terminal
Package Type	SSR with Integrated Heat Sink
Product Status	Active
RoHS Status	RoHS3 Compliant
REACH Status	REACH Affected

Substitute Part Grouping Explanation

Substitution eligibility for the CKRA4830 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
Load current capacity must be 30A
Mounting type must support DIN Rail installation
Termination style must be Screw Terminal
Input voltage range must accommodate 90–280VAC operation
Load voltage range must support minimum 48V operation

The three qualified substitute parts meet these core electrical and mechanical requirements while offering variations in load voltage ceiling, package configuration, and product lifecycle status.

Parameter Comparison

Parameter	CKRA4830	GNR30BHZ	ASR-SV480A30ZY-L	GNR30ACZH
Manufacturer	Sensata-Crydom	Sensata-Crydom	Altran Magnetics, LLC	Crouzet
Circuit Configuration	SPST-NO (1 Form A)	SPST-NO (1 Form A)	SPST-NO (1 Form A)	SPST-NO (1 Form A)
Output Type	AC, Zero Cross	AC, Zero Cross	AC, Zero Cross	AC, Zero Cross
Voltage - Input	90–280VAC	90–140VAC	90–280VAC	180–280VAC
Voltage - Load	48–530V	48–600V	24–530V	48–660V
Load Current	30A	30A	30A	30A
Mounting Type	DIN Rail	DIN Rail	DIN Rail	Chassis Mount, DIN Rail
Termination Style	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal
Package Type	SSR with Integrated Heat Sink	Module	Module	Module
Product Status	Active	Last Time Buy	Active	Active
RoHS Status	RoHS3 Compliant	RoHS Compliant	RoHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

GNR30BHZ (Sensata-Crydom): Provides extended load voltage capability to 600V and maintains DIN Rail mounting. However, this part carries Last Time Buy status, indicating discontinued production. Input voltage range is restricted to 90–140VAC, which may not accommodate all CKRA4830 applications requiring full 90–280VAC input range. Selection should be limited to applications with input voltage below 140VAC.

ASR-SV480A30ZY-L (Altran Magnetics, LLC): Maintains full input voltage compatibility (90–280VAC) and load voltage range (24–530V) matching CKRA4830 specifications. Holds Active product status with RoHS3 compliance. Packaging is Box format rather than integrated heat sink. This part provides direct functional equivalence for applications requiring sustained production availability.

GNR30ACZH (Crouzet): Offers the highest load voltage ceiling at 660V with dual mounting capability (Chassis Mount and DIN Rail). Maintains Active product status with RoHS compliance. Input voltage range is limited to 180–280VAC, restricting use in applications requiring operation below 180VAC input. Selection is appropriate for high-voltage load applications within the specified input range.

Frequently Asked Questions (FAQ)

Q: Can GNR30BHZ be used as a direct replacement for CKRA4830?

A: GNR30BHZ meets core electrical requirements (SPST-NO, 30A, AC zero-cross) and mechanical requirements (DIN Rail, Screw Terminal). However, input voltage range is limited to 90–140VAC versus CKRA4830's 90–280VAC. Substitution is valid only for applications operating within the 90–140VAC input window. Additionally, Last Time Buy status indicates production discontinuation.

Q: What is the primary difference between ASR-SV480A30ZY-L and CKRA4830?

A: Both parts maintain identical electrical specifications (90–280VAC input, 48–530V load, 30A, SPST-NO, AC zero-cross). The primary difference is package configuration: CKRA4830 features integrated heat sink while ASR-SV480A30ZY-L is a module package. Thermal management design must be evaluated for the specific application.

Q: Is GNR30ACZH suitable for applications requiring 48V input operation?

A: No. GNR30ACZH input voltage range is 180–280VAC, which does not accommodate operation below 180VAC. CKRA4830 and ASR-SV480A30ZY-L both support 90VAC minimum input and are appropriate for lower input voltage applications.

Q: Can load voltage requirements above 530V be accommodated?

A: Yes. Both GNR30BHZ (48–600V) and GNR30ACZH (48–660V) support load voltages exceeding CKRA4830's 530V maximum. Selection depends on input voltage requirements and product lifecycle status constraints.

Q: What compliance certifications are maintained across all substitute options?

A: All substitute parts maintain RoHS compliance. CKRA4830 and ASR-SV480A30ZY-L are RoHS3 compliant. GNR30BHZ and GNR30ACZH are RoHS compliant. REACH compliance varies: CKRA4830 and ASR-SV480A30ZY-L differ in REACH status, while GNR30BHZ and GNR30ACZH are REACH unaffected.

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