CKRB4820P Equivalent & Substitute Parts

Part Overview

The CKRB4820P is a Solid State Relay (SSR) manufactured by Sensata-Crydom, configured as a SPST-NO (1 Form A) relay with integrated heat sink. This component operates with a 20A load current across a 48-530V range and is designed for applications requiring solid-state switching without mechanical contacts. The part is currently in stock with 768 units available.

Equivalent and substitute parts are identified based on matching functional specifications: SPST-NO circuit configuration, 20A load current rating, overlapping voltage ranges, and compatible mounting and termination characteristics.

Substiute Parts

CKRB4820P

Sensata-CrydomIn Stock: 791CKRB4820P Datasheet

Current PartRFQ

DR2260A20U

Sensata-CrydomIn Stock: 1037DR2260A20U Datasheet

MFR RecommendedRFQ

GNR20BCZH

CrouzetIn Stock: 1136GNR20BCZH Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CKRB4820P are qualified based on the following criteria:

• Circuit configuration must be SPST-NO (1 Form A)
• Load current rating must be 20 A
• Load voltage range must overlap with or exceed the 48-530V specification
• Package type must be SSR with integrated heat sink or equivalent module form factor
• Termination style must be screw terminal for compatibility with existing installations

The identified substitutes are:

1. DR2260A20U (Sensata-Crydom, DR22 series) – MFR recommended substitute with extended voltage range (48-600V) and DIN Rail mounting
2. GNR20BCZH (Crouzet, GNR series) – Direct substitute with extended voltage range (48-660V) and dual mounting options (Chassis Mount, DIN Rail)

Parameter Comparison

Engineering Selection Recommendations

DR2260A20U is designated as the MFR recommended substitute. This part maintains the same manufacturer (Sensata-Crydom) and provides extended load voltage capability (48-600V versus 48-530V). The part is ROHS3 compliant and REACH affected, with active product status. DIN Rail mounting is specified.

GNR20BCZH is a direct substitute from Crouzet with the highest load voltage range (48-660V). This part offers dual mounting flexibility (Chassis Mount and DIN Rail) and is RoHS compliant with REACH unaffected status. Active product status is confirmed.

Both substitutes maintain the 20A load current specification, SPST-NO circuit configuration, screw terminal termination, and AC zero-cross output type. Selection between substitutes depends on mounting requirements and compliance certifications applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Can DR2260A20U replace CKRB4820P in all applications?

A: DR2260A20U is the MFR recommended substitute and maintains functional equivalence for SPST-NO switching at 20A. The extended voltage range (48-600V) provides broader application coverage. Verify mounting type compatibility; DR2260A20U specifies DIN Rail mounting.

Q: What is the primary difference between DR2260A20U and GNR20BCZH?

A: Both parts meet the 20A, SPST-NO specification with screw terminal termination. DR2260A20U is from Sensata-Crydom (same manufacturer as the main part) with ROHS3 compliance. GNR20BCZH is from Crouzet with a higher voltage range (48-660V) and dual mounting options (Chassis Mount and DIN Rail).

Q: Are all substitutes compatible with existing screw terminal connections?

A: Yes. All listed substitutes specify screw terminal termination style, ensuring mechanical and electrical compatibility with existing wiring infrastructure.

Q: What compliance certifications apply to each substitute?

A: DR2260A20U is ROHS3 compliant and REACH affected. GNR20BCZH is RoHS compliant and REACH unaffected. Select based on regulatory requirements for your application region.

Q: Do the substitutes support the same load voltage range as CKRB4820P?

A: Both substitutes exceed the original 48-530V range. DR2260A20U supports 48-600V; GNR20BCZH supports 48-660V. Both are suitable for applications within the original voltage specification.