Honeywell 1HS1 Snap Action Switch - Equivalent & Substitute Parts

Part Overview

The Honeywell 1HS1 is an SPDT snap action switch designed for chassis mount applications with a straight lever actuator. This switch operates at 1A AC (115V) and 25A DC (28V) with hermetically sealed construction, providing reliable performance across an operating temperature range of -54°C to 121°C. The part is currently active in production and RoHS compliant.

Substitute parts are identified when equivalent electrical and mechanical specifications allow direct replacement in the same application circuit, maintaining circuit topology (SPDT), mounting configuration (chassis mount), and termination style (screw terminal) while accommodating variations in rated current, voltage, and actuator geometry within acceptable operational parameters.

Substiute Parts

1HS1

Honeywell Sensing and Productivity SolutionsIn Stock: 9921HS1 Datasheet

Current PartRFQ

A-20GV22-B7-K

Omron Automation and SafetyIn Stock: 946A-20GV22-B7-K Datasheet

SimilarRFQ

Z-15GW2277-B7-K

Omron Automation and SafetyIn Stock: 1029Z-15GW2277-B7-K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Honeywell 1HS1 is determined by the following criteria:

Circuit and Function Requirements:

• Circuit configuration must be SPDT (Single Pole Double Throw)
• Switch function must be On-Momentary
• Mounting type must be Chassis Mount
• Termination style must be Screw Terminal

Electrical Compatibility Parameters:

• AC voltage rating must be equal to or greater than 115V
• DC voltage rating must be equal to or greater than 28V
• AC current rating must be equal to or greater than 1A
• DC current rating must be equal to or greater than 25A

Mechanical and Environmental Parameters:

• Actuator type may vary (straight lever or roller lever acceptable for same application space)
• Operating temperature range must encompass or overlap the -54°C to 121°C specification
• RoHS compliance status must be maintained

The identified substitute parts meet these criteria while providing equivalent or superior electrical ratings and maintaining the same circuit topology and mounting configuration.

Parameter Comparison

Engineering Selection Recommendations

Honeywell 1HS1 Primary Selection: The Honeywell 1HS1 remains the primary component for applications requiring the full operating temperature range of -54°C to 121°C. This part is active in production, RoHS compliant, and provides the specified electrical ratings with hermetically sealed construction.

Omron A-20GV22-B7-K Substitution: The Omron A-20GV22-B7-K provides superior AC current rating (20A versus 1A) and equivalent AC voltage rating (125V versus 115V). DC current capability is reduced to 6A at 30V. This substitute is suitable for applications where AC current demand exceeds the primary part's 1A rating and operating temperature does not exceed 80°C. RoHS compliance and active product status are maintained. Packaging is supplied in trays rather than bulk.

Omron Z-15GW2277-B7-K Substitution: The Omron Z-15GW2277-B7-K provides intermediate AC current rating (15A versus 1A) and equivalent AC voltage rating (125V versus 115V). DC current capability is reduced to 6A at 30V. This substitute is suitable for applications where AC current demand is between 1A and 20A and operating temperature does not exceed 80°C. RoHS compliance and active product status are maintained. Packaging is supplied in bulk, matching the primary part configuration.

Temperature Limitation: Both Omron substitutes operate to a maximum of 80°C, which is 41°C below the Honeywell 1HS1 upper limit. Applications requiring operation above 80°C must use the Honeywell 1HS1.

Frequently Asked Questions (FAQ)

Q: Can the Omron A-20GV22-B7-K replace the Honeywell 1HS1 in all applications?

A: No. The Omron A-20GV22-B7-K has a reduced operating temperature maximum of 80°C compared to the Honeywell 1HS1 maximum of 121°C. Additionally, DC current rating is reduced from 25A to 6A. Substitution is valid only when the application operates below 80°C and DC current demand does not exceed 6A.

Q: What is the primary difference between the two Omron substitutes?

A: The Omron A-20GV22-B7-K provides 20A AC current rating, while the Omron Z-15GW2277-B7-K provides 15A AC current rating. Both provide 6A DC current at 30V. Selection depends on the specific AC current requirement of the application. The Z-15GW2277-B7-K offers higher mechanical life (10,000,000 cycles versus 1,000,000 cycles).

Q: Are all three parts RoHS compliant?

A: Yes. The Honeywell 1HS1, Omron A-20GV22-B7-K, and Omron Z-15GW2277-B7-K are all RoHS compliant.

Q: Does packaging type affect electrical or mechanical performance?

A: No. Packaging type (bulk versus tray) does not affect electrical or mechanical performance. Packaging selection is based on inventory management and handling requirements only.

Q: What is the impact of the different actuator types (straight lever versus roller lever)?

A: Actuator geometry differs between the primary part (straight lever) and substitutes (roller lever). Operating force, release force, and travel distances vary accordingly. Physical space constraints and actuation method compatibility must be evaluated for the specific application before substitution.

Q: Can the Honeywell 1HS1 be used in place of the Omron substitutes?

A: The Honeywell 1HS1 can be used in applications designed for the Omron substitutes when the application operates within the Honeywell specifications (1A AC at 115V, 25A DC at 28V, -54°C to 121°C). The Honeywell part provides extended temperature range and higher DC current capability.