HA4850E Solid State Relay - Equivalent & Substitute Parts

Part Overview

The HA4850E is a solid state relay (SSR) manufactured by Sensata Technologies, configured as a single-pole single-throw normally open (SPST-NO) device rated for 50A load current with input voltage range of 18–36VAC and output voltage range of 48–530V. This active product features zero-cross switching for AC loads and is housed in a hockey puck package with screw terminal connections suitable for chassis mount applications. Substitute parts are identified when equivalent electrical and mechanical parameters are available from alternative manufacturers, enabling procurement flexibility while maintaining circuit performance specifications.

Key Parameters

Parameter	Value
Circuit Configuration	SPST-NO (1 Form A)
Load Current Rating	50 A
Input Voltage Range	18–36VAC
Output Voltage Range	48–530V
Output Type	AC, Zero Cross
Package Type	Hockey Puck
Termination Style	Screw Terminal
Mounting Type	Chassis Mount
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the HA4850E is determined by strict equivalence across the following critical parameters:

Circuit Configuration: Must be SPST-NO (1 Form A) to maintain identical switching topology
Load Current Rating: Must be rated for 50A minimum to support the specified load
Input Voltage Range: Must accommodate 18–36VAC control signal
Output Voltage Range: Must support the application's load voltage requirements; extended ranges are acceptable provided minimum threshold is met
Output Type: Must be AC with zero-cross switching to ensure compatible control behavior
Package Type: Must be hockey puck form factor for mechanical fit
Termination Style: Must use screw terminals for connection compatibility
Mounting Type: Must support chassis mount installation

The substitute part 84137122N (Crouzet GN series) meets all substitution criteria. It maintains identical circuit configuration, load current, input voltage, termination, and package specifications. The output voltage range extends to 660V, which encompasses the HA4850E specification of 48–530V. Both parts are active products with appropriate regulatory compliance.

Parameter Comparison

Parameter	HA4850E (Sensata)	84137122N (Crouzet)	Match Status
Manufacturer Part Number	HA4850E	84137122N	Different
Manufacturer	Sensata Technologies	Crouzet	Different
Circuit Configuration	SPST-NO (1 Form A)	SPST-NO (1 Form A)	Equivalent
Load Current Rating	50 A	50 A	Equivalent
Input Voltage Range	18–36VAC	18–36VAC	Equivalent
Output Voltage Range	48–530V	48–660V	Compatible
Output Type	AC, Zero Cross	AC, Zero Cross	Equivalent
Package Type	Hockey Puck	Hockey Puck	Equivalent
Termination Style	Screw Terminal	Screw Terminal	Equivalent
Mounting Type	Chassis Mount	Chassis Mount	Equivalent
Product Status	Active	Active	Equivalent
RoHS Compliance	ROHS3 Compliant	RoHS Compliant	Compliant
REACH Status	REACH Affected	REACH Unaffected	Different

Engineering Selection Recommendations

Both the HA4850E and 84137122N are active products with current manufacturer support. Selection between these parts should be based on:

HA4850E (Sensata Technologies): Primary choice when REACH-affected component status is acceptable for the application. Sensata is the original manufacturer specification.

84137122N (Crouzet): Suitable alternative when REACH-unaffected status is required or when Crouzet supply chain availability is preferred. The extended output voltage range (48–660V) provides additional margin beyond the HA4850E specification (48–530V), maintaining full compatibility with the specified load voltage requirements.

Both parts carry appropriate ECCN classification (EAR99) and HTSUS codes. RoHS compliance is confirmed for both variants, ensuring regulatory alignment for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the 84137122N replace the HA4850E in existing designs?

A: Yes. The 84137122N meets all critical electrical and mechanical parameters: identical SPST-NO circuit configuration, 50A load current rating, 18–36VAC input voltage range, AC zero-cross output type, hockey puck package, screw terminal connections, and chassis mount capability. The extended output voltage range (48–660V) is fully compatible with applications designed for the HA4850E (48–530V).

Q: What is the significance of the different output voltage ranges?

A: The HA4850E supports 48–530V output, while the 84137122N supports 48–660V output. Both ranges encompass the same minimum threshold (48V) and the HA4850E maximum (530V) falls within the 84137122N range. This makes the 84137122N compatible with all HA4850E applications without derating or performance compromise.

Q: Are there differences in control signal requirements?

A: No. Both parts require identical input voltage: 18–36VAC. Control circuit design and signal conditioning remain unchanged when substituting between these parts.

Q: How do the package and termination styles compare?

A: Both parts use hockey puck form factor with screw terminal connections and chassis mount orientation. Physical installation and wiring procedures are identical.

Q: What is the difference between REACH Affected and REACH Unaffected status?

A: REACH Affected indicates the component may contain substances of very high concern (SVHC) requiring regulatory documentation. REACH Unaffected indicates no SVHC substances are present. Selection depends on application regulatory requirements and supply chain documentation needs.

Q: Are both parts currently available?

A: Yes. Both HA4850E and 84137122N are active products with current manufacturer support and documented inventory availability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message