CKRB2420P Equivalent & Substitute Parts

Part Overview

The CKRB2420P is a Solid State SPST-NO (1 Form A) SSR with integrated heat sink manufactured by Sensata-Crydom, part of the CKR24 series. This component functions as a relay for switching applications requiring 20A load capacity across a 24-280V operating range. Substitute parts are identified based on matching circuit topology, load current rating, and thermal management characteristics to ensure functional equivalence in replacement scenarios.

Substiute Parts

CKRB2420P

Sensata-CrydomIn Stock: 945CKRB2420P Datasheet

Current PartRFQ

DR2260A20U

Sensata-CrydomIn Stock: 1037DR2260A20U Datasheet

MFR RecommendedRFQ

GNR20BCZH

CrouzetIn Stock: 1136GNR20BCZH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CKRB2420P are qualified based on the following criteria:

• Circuit Configuration: SPST-NO (1 Form A) topology maintained across all substitutes
• Load Current Rating: 20 A minimum capacity required
• Thermal Management: Integrated heat sink or equivalent thermal design
• Termination Interface: Screw terminal compatibility
• Output Type: AC switching with zero-cross capability

The identified substitutes—DR2260A20U (Sensata-Crydom, DR22 series) and GNR20BCZH (Crouzet, GNR series)—meet these core electrical and mechanical requirements. Load voltage ranges differ between parts; selection depends on specific application voltage requirements.

Parameter Comparison

Engineering Selection Recommendations

DR2260A20U (Sensata-Crydom, DR22 series): This substitute maintains manufacturer continuity with Sensata-Crydom and supports extended load voltage operation (48-600V). Product status is Active with ROHS3 compliance and REACH affected designation. DIN Rail mounting is specified. Selection is appropriate for applications requiring higher voltage tolerance than the CKRB2420P baseline.

GNR20BCZH (Crouzet, GNR series): This substitute provides the highest load voltage range (48-660V) and supports dual mounting configurations (Chassis Mount and DIN Rail). Product status is Active with RoHS compliance and REACH unaffected designation. Selection is appropriate for applications requiring maximum voltage flexibility and mounting versatility.

Frequently Asked Questions (FAQ)

Q: Can DR2260A20U replace CKRB2420P in all applications? A: DR2260A20U is electrically equivalent for SPST-NO switching at 20A. However, the load voltage range differs: CKRB2420P operates 24-280V while DR2260A20U operates 48-600V. Verify application voltage requirements before substitution.

Q: What is the primary difference between GNR20BCZH and the other substitutes? A: GNR20BCZH is manufactured by Crouzet rather than Sensata-Crydom, offers the widest load voltage range (48-660V), and supports both Chassis Mount and DIN Rail mounting. Package type is Module rather than integrated heat sink form factor.

Q: Are all three parts interchangeable? A: All three parts share SPST-NO circuit configuration, 20A load current, AC zero-cross output, and screw terminal termination. Interchangeability depends on application-specific voltage requirements and mounting constraints. Load voltage ranges must be verified against system specifications.

Q: What compliance certifications apply to substitute parts? A: DR2260A20U carries ROHS3 compliance and REACH affected status. GNR20BCZH carries RoHS compliance and REACH unaffected status. Both are classified under HTSUS 8536.49.0080 and ECCN EAR99.

Q: Does mounting type affect substitution decisions? A: Yes. CKRB2420P mounting type is not specified in available data. DR2260A20U specifies DIN Rail mounting. GNR20BCZH supports both Chassis Mount and DIN Rail. Verify mechanical installation requirements before selection.