GNR45DHZ Equivalent & Substitute Parts

Part Overview

The GNR45DHZ is a solid-state relay (SSR) module manufactured by Sensata-Crydom, designed for SPST-NO (1 Form A) switching applications. This component operates with input voltage of 4–32 VDC and handles AC loads from 48–600 V at 45 A capacity, featuring zero-cross switching for AC output control. The product is marked as "Not For New Designs," indicating it has been superseded in the manufacturer's portfolio. Identifying equivalent and substitute parts is necessary for ongoing maintenance, legacy system support, and design continuity where this component is currently deployed.

Substiute Parts

GNR45DHZ

Sensata-CrydomIn Stock: 1278GNR45DHZ Datasheet

Current PartRFQ

DR4560D45P

Sensata-CrydomIn Stock: 1054DR4560D45P Datasheet

MFR RecommendedRFQ

GNR45DCZP

CrouzetIn Stock: 722GNR45DCZP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GNR45DHZ is determined by the following critical parameters:

• Circuit Configuration: SPST-NO (1 Form A) topology
• Output Switching: AC with zero-cross capability
• Input Control Voltage: 4–32 VDC range
• Load Voltage Range: Minimum 48 V, maximum 600 V
• Current Rating: 45 A capacity
• Mounting Standard: DIN Rail compatibility
• Termination: Screw Terminal interface

Substitute parts must maintain compatibility across these parameters. Variations in load current rating, voltage range, or mounting type indicate functional differences that affect direct substitutability.

Parameter Comparison

Engineering Selection Recommendations

DR4560D45P (Sensata-Crydom): This substitute maintains full electrical and mechanical compatibility with the GNR45DHZ across all critical parameters—identical input voltage range (4–32 VDC), load voltage span (48–600 V), and current rating (45 A). The integrated heat sink design provides enhanced thermal management compared to the base module. Product status is Active, ensuring ongoing availability and support. RoHS compliance is maintained. This part is the manufacturer-recommended primary substitute.

GNR45DCZP (Crouzet): This substitute provides functional equivalence in circuit topology, switching characteristics, and control voltage range. However, it operates within a reduced load voltage range (24–500 V versus 48–600 V) and lower current capacity (32 A versus 45 A). Mounting flexibility includes both chassis and DIN Rail options. Product status is Active. This part is suitable only for applications where the lower voltage and current ratings are acceptable. RoHS compliance is maintained.

Frequently Asked Questions (FAQ)

Q: Can GNR45DCZP directly replace GNR45DHZ in all applications?

A: No. GNR45DCZP has a maximum load voltage of 500 V (versus 600 V for GNR45DHZ) and a maximum current rating of 32 A (versus 45 A). It is suitable only for applications operating within these reduced limits.

Q: What is the primary advantage of DR4560D45P over GNR45DHZ?

A: DR4560D45P maintains identical electrical specifications while incorporating an integrated heat sink for improved thermal performance. It is the active, manufacturer-recommended substitute.

Q: Are all substitute parts DIN Rail mountable?

A: Yes. GNR45DHZ and DR4560D45P are DIN Rail only. GNR45DCZP supports both DIN Rail and chassis mounting, providing additional installation flexibility.

Q: Do all parts use the same termination style?

A: Yes. All three parts use screw terminal termination, ensuring compatibility with existing wiring infrastructure.

Q: Are there compliance differences between the main part and substitutes?

A: All parts are RoHS Compliant with MSL 1 (Unlimited). GNR45DCZP additionally carries REACH Unaffected status. No compliance barriers exist for substitution.

Q: Why is GNR45DHZ marked "Not For New Designs"?

A: This designation indicates the part has been superseded. DR4560D45P is the active replacement for new applications, while GNR45DHZ remains available for legacy system support.