Sensata-Crydom 4D2450 SSR Relay SPST-NO 50A 24-280V Equivalent & Substitute Parts

Part Overview

The Sensata-Crydom 4D2450 is a solid-state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 50A load current at 24-280V AC output with zero-cross switching. This component is classified as obsolete, making identification of compatible substitutes essential for system maintenance and component procurement. The 4D2450 features a hockey puck form factor with screw terminal connections, designed for chassis mount applications requiring reliable AC switching in industrial control systems.

Substiute Parts

4D2450

Sensata-CrydomIn Stock: 10184D2450 Datasheet

Current PartRFQ

D2450

Sensata-CrydomIn Stock: 1058D2450 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 4D2450 is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: SPST-NO (1 Form A) topology must be maintained
• Output Type: AC switching with zero-cross detection capability
• Input Voltage Range: 3 ~ 32VDC control signal compatibility
• Load Voltage Range: 24 V ~ 280 V AC output capability
• Load Current Rating: 50 A continuous current capacity
• Mounting and Termination: Chassis mount with screw terminal connections
• Package Form Factor: Hockey puck mechanical envelope

The D2450 meets all substitution criteria as a direct equivalent from the same manufacturer, with identical electrical specifications and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The D2450 is the direct functional equivalent of the 4D2450. Both components share identical electrical ratings, circuit topology, and mechanical specifications. The primary distinction is product status: the 4D2450 is obsolete while the D2450 remains in active production.

The D2450 provides enhanced regulatory compliance through ROHS3 certification and REACH compliance status, meeting current environmental and safety standards. For new designs or system replacements, the D2450 is the appropriate selection. For legacy system maintenance where original 4D2450 units are unavailable, the D2450 provides direct substitution without circuit redesign or application modification.

Frequently Asked Questions (FAQ)

Q: Can the D2450 directly replace the 4D2450 in existing applications?

A: Yes. The D2450 is electrically and mechanically equivalent to the 4D2450. Both components feature identical input voltage ranges (3-32VDC), load voltage capability (24-280V AC), current rating (50A), circuit configuration (SPST-NO), and zero-cross switching behavior. Screw terminal connections and hockey puck form factor are identical, enabling direct substitution without circuit modification.

Q: What is the significance of the product status difference?

A: The 4D2450 is classified as obsolete, indicating it is no longer manufactured or supported by Sensata-Crydom. The D2450 maintains active production status, ensuring availability, technical support, and compliance with current manufacturing standards. For procurement planning, the D2450 is the recommended long-term component selection.

Q: Are there compliance differences between these parts?

A: Both components are RoHS compliant. The D2450 carries ROHS3 certification and REACH compliance status, reflecting alignment with current European environmental regulations. The 4D2450 meets RoHS requirements but lacks the enhanced ROHS3 and REACH designations. For applications subject to strict regulatory compliance requirements, the D2450 is preferred.

Q: Are packaging options different between these parts?

A: The 4D2450 is supplied with dash packaging notation, while the D2450 is available in bulk packaging. Both maintain identical mechanical form factor (hockey puck) and electrical specifications. Packaging differences do not affect functional compatibility or performance characteristics.