A53TP50DH Equivalent & Substitute Parts

Part Overview

The A53TP50DH is a solid-state relay (SSR) module manufactured by Sensata-Crydom, configured as a 3PST-NO (3 Form A) switching device. This active product is designed for industrial control applications requiring simultaneous switching of three independent AC loads at 50A capacity. The module operates with AC input control signals (90–280VAC) and supports load voltages ranging from 48V to 530V with zero-cross switching capability. Finding equivalent substitute parts is necessary when managing supply chain continuity, optimizing inventory across multiple suppliers, or addressing component availability constraints in production environments.

Substiute Parts

A53TP50DH

Sensata-CrydomIn Stock: 1027A53TP50DH Datasheet

Current PartRFQ

GN350ASZH

CrouzetIn Stock: 1070GN350ASZH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A53TP50DH is determined by the following critical parameters:

• Circuit Configuration: Must be 3PST-NO (3 Form A) to maintain identical switching topology
• Load Current Rating: Must be rated for 50A to ensure equivalent power handling capacity
• Output Type: Must be AC with zero-cross switching for compatible control behavior
• Load Voltage Range: Must encompass or exceed the 48V–530V operating window
• Input Control Voltage: Must support the control signal range required by the application
• Termination Style: Must use screw terminal connections for mechanical compatibility
• Package Type: Must be module-based for form factor compatibility
• Compliance: Must maintain equivalent RoHS or higher environmental compliance status

The substitute part GN350ASZH from Crouzet meets these criteria with compatible electrical specifications and equivalent mechanical packaging.

Parameter Comparison

Engineering Selection Recommendations

The GN350ASZH is a qualified substitute for the A53TP50DH based on the following engineering criteria:

• Both devices maintain identical 3PST-NO circuit topology and 50A load current capacity, ensuring functional equivalence in three-phase switching applications
• Both employ AC zero-cross switching output, preserving control characteristics and electromagnetic compatibility
• The GN350ASZH input voltage range (24–255VAC/DC) encompasses the A53TP50DH input range (90–280VAC), providing broader control signal compatibility
• Load voltage specifications are closely aligned: A53TP50DH operates 48–530V while GN350ASZH operates 24–510V, with overlap across standard industrial voltage levels
• Both devices use screw terminal connections and module-based packaging, ensuring mechanical and electrical interface compatibility
• The GN350ASZH offers expanded mounting flexibility (Chassis Mount or Panel Mount) compared to the A53TP50DH (Chassis Mount only)
• Both components maintain equivalent export classification (EAR99) and tariff codes (8536.49.0080)
• The GN350ASZH holds ROHS3 compliance, meeting or exceeding the RoHS Compliant status of the A53TP50DH

Selection between these parts should be based on specific application requirements regarding input voltage range, load voltage boundaries, and mounting configuration needs.

Frequently Asked Questions (FAQ)

Q: Can the GN350ASZH directly replace the A53TP50DH in existing applications?

A: Direct replacement is possible when the application input voltage falls within the GN350ASZH range (24–255VAC/DC) and load voltage remains within 24–510V. The identical circuit configuration (3PST-NO), load current rating (50A), and output type (AC, zero-cross) ensure functional compatibility. Verify that your specific input and load voltage requirements do not exceed the GN350ASZH boundaries.

Q: What are the key differences between these two SSR modules?

A: The primary differences are input voltage range (A53TP50DH: 90–280VAC vs. GN350ASZH: 24–255VAC/DC), load voltage ceiling (A53TP50DH: 530V vs. GN350ASZH: 510V), and mounting options (A53TP50DH: Chassis Mount only vs. GN350ASZH: Chassis Mount or Panel Mount). The GN350ASZH provides broader input flexibility and mounting versatility.

Q: Are there any compliance or certification concerns when substituting these parts?

A: Both components share identical ECCN (EAR99) and HTSUS (8536.49.0080) classifications. The GN350ASZH holds ROHS3 compliance, which meets or exceeds the RoHS Compliant status of the A53TP50DH. No compliance barriers exist for substitution.

Q: Does the GN350ASZH support DC input control signals?

A: Yes. The GN350ASZH input specification includes both VAC and VDC (24–255VAC/DC), enabling operation with DC control signals. The A53TP50DH is specified for AC input only (90–280VAC). This represents an additional capability of the substitute part.

Q: What packaging and inventory considerations apply to these parts?

A: The A53TP50DH is supplied in Bulk packaging with 957 pieces in stock. The GN350ASZH is supplied in Box packaging with 985 pieces in stock. Both are active products with established supply availability.