GNR25BCZ Equivalent & Substitute Parts

Part Overview

The GNR25BCZ is a Solid State Relay (SSR) module manufactured by Sensata-Crydom, configured as a 3PST-NO (3 Form A) relay with 25A load capacity and AC zero-cross output switching. The device operates with input voltage range of 90–140VAC and supports load voltages from 48V to 600V. This part is designated as Last Time Buy, indicating discontinued production status. Identifying equivalent and substitute parts is necessary to ensure continued availability for maintenance, repair, and new system designs where this specific model is no longer procurable.

Substiute Parts

GNR25BCZ

Sensata-CrydomIn Stock: 1193GNR25BCZ Datasheet

Current PartRFQ

DR6760A25P

Sensata-CrydomIn Stock: 1029DR6760A25P Datasheet

MFR RecommendedRFQ

GNR25ACZH

CrouzetIn Stock: 836GNR25ACZH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GNR25BCZ is determined by the following critical parameters:

• Circuit Configuration: Must be 3PST-NO (3 Form A) to maintain identical switching topology
• Load Current: Must be rated for 25A minimum
• Load Voltage Range: Must encompass or exceed 48–600V operating window
• Output Type: Must be AC with zero-cross switching capability
• Termination Style: Must use screw terminals for direct connection compatibility
• Mounting Compatibility: Must support DIN Rail mounting or be adaptable to existing installations

The two substitute parts identified—DR6760A25P and GNR25ACZH—satisfy these core electrical and mechanical requirements while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

DR6760A25P is the manufacturer-recommended primary substitute. It maintains identical load current and voltage specifications while offering expanded input voltage range (90–280VAC/DC versus 90–140VAC). The integrated heat sink design provides thermal management advantages in high-duty-cycle applications. Dual mounting capability (Chassis Mount and DIN Rail) offers installation flexibility. Active product status ensures long-term availability and supply chain continuity. ROHS3 compliance status is not specified; verification against specific regulatory requirements may be necessary.

GNR25ACZH is the secondary substitute, manufactured by Crouzet under the GNR3 series. It provides the widest load voltage range (24–660V) and most flexible input voltage specification (24–255VAC/DC). ROHS3 compliance is confirmed. This option is suitable for applications requiring extended voltage operating windows. Packaging in box format differs from bulk packaging of the primary part.

Both substitutes maintain electrical equivalence for 3PST-NO switching topology, 25A load current, and AC zero-cross output operation. Selection between them depends on specific input voltage requirements, thermal management needs, and regulatory compliance mandates of the target application.

Frequently Asked Questions (FAQ)

Q: Can DR6760A25P directly replace GNR25BCZ in existing installations?

A: Yes. Both parts share identical circuit configuration (3PST-NO), load current (25A), load voltage range (48–600V), output type (AC zero-cross), and screw terminal termination. The DR6760A25P supports DIN Rail mounting and offers expanded input voltage capability. Physical dimensions and terminal spacing must be verified against installation constraints.

Q: What is the primary difference between DR6760A25P and GNR25ACZH?

A: DR6760A25P is manufactured by Sensata-Crydom (original manufacturer) with input range 90–280VAC/DC and integrated heat sink. GNR25ACZH is manufactured by Crouzet with input range 24–255VAC/DC and wider load voltage range (24–660V). Both maintain identical 25A load current and 3PST-NO configuration.

Q: Why is GNR25BCZ designated Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. This designation necessitates identification of active substitute parts to maintain system availability and support future procurement requirements.

Q: Are both substitutes ROHS3 compliant?

A: GNR25ACZH is confirmed ROHS3 compliant. DR6760A25P ROHS3 compliance status is not specified in available documentation and should be verified with the manufacturer if regulatory compliance is a requirement.

Q: What mounting options are available with these substitutes?

A: GNR25BCZ and GNR25ACZH support DIN Rail mounting only. DR6760A25P supports both Chassis Mount and DIN Rail mounting, providing additional installation flexibility for applications requiring chassis-mounted configurations.

Q: Can GNR25ACZH operate with input voltages below 90VAC?

A: Yes. GNR25ACZH supports input range 24–255VAC/DC, enabling operation at lower input voltages than GNR25BCZ (90–140VAC) or DR6760A25P (90–280VAC/DC). This extended range is suitable for low-voltage control circuit applications.