GLFC01D Snap Action Switch - Equivalent & Substitute Parts

Part Overview

The GLFC01D is a snap action switch manufactured by Honeywell Sensing and Control EMEA, configured as a single-pole double-throw (SPDT) device with momentary operation. This chassis-mounted switch is rated for 6A AC at 120V and 550mA DC at 125V, featuring a lever and roller actuator with IP67 ingress protection. The product is currently obsolete, making identification of equivalent substitute parts essential for system maintenance and component replacement in existing installations.

Substiute Parts

GLFC01D

Honeywell Sensing and Control EMEAIn Stock: 1188GLFC01D Datasheet

Current PartRFQ

D4A-3110N

Omron Automation and SafetyIn Stock: 860D4A-3110N Datasheet

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GLDA01D

Honeywell Sensing and Productivity SolutionsIn Stock: 1260GLDA01D Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the GLFC01D is determined by strict alignment of electrical and mechanical parameters within acceptable tolerances for the application. The following criteria establish valid substitute relationships:

Primary Substitution Criteria:

• Circuit configuration must be SPDT
• Switch function must be On-Momentary
• Mounting type must be Chassis Mount
• Termination style must be Screw Terminal
• Ingress protection must be IP67 or equivalent
• Current and voltage ratings must meet or exceed the original specification
• Actuator type must be compatible with mechanical interface requirements

Identified Substitute Parts:

• GLDA01D (Honeywell Sensing and Productivity Solutions) - Same series variant, active product status
• D4A-3110N (Omron Automation and Safety) - Cross-manufacturer equivalent with enhanced electrical ratings

Parameter Comparison

Engineering Selection Recommendations

GLDA01D Selection: The GLDA01D is the primary substitute for the GLFC01D. Both parts share identical electrical ratings (6A AC at 120V, 550mA DC at 125V), matching actuator types (Lever, Roller), and equivalent mechanical specifications. The GLDA01D is manufactured by Honeywell Sensing and Productivity Solutions and maintains active product status, ensuring ongoing availability and supply chain continuity. The GLDA01D operates across an extended temperature range (-40°C to 85°C) compared to the original part, providing enhanced thermal performance. Both parts are RoHS compliant and carry identical HTSUS and ECCN classifications.

D4A-3110N Selection: The D4A-3110N manufactured by Omron Automation and Safety provides a cross-manufacturer alternative with enhanced electrical specifications. This part exceeds the original current rating (10A AC versus 6A AC) and offers superior DC current handling (6A versus 550mA). The D4A-3110N maintains SPDT configuration, On-Momentary function, Chassis Mount installation, Screw Terminal termination, and IP67 ingress protection. The part operates across a wider temperature range (-20°C to 100°C) and is RoHS compliant. The D4A-3110N is suitable for applications where higher electrical capacity is beneficial or where cross-manufacturer sourcing is required.

Frequently Asked Questions (FAQ)

Q: Can the GLDA01D directly replace the GLFC01D in existing installations? A: Yes. The GLDA01D matches the GLFC01D in all critical electrical parameters (6A AC at 120V, 550mA DC at 125V), circuit configuration (SPDT), switch function (On-Momentary), mounting type (Chassis Mount), termination style (Screw Terminal), and ingress protection (IP67). Both parts use identical actuator types (Lever, Roller) and screw terminal connections, enabling direct mechanical and electrical substitution.

Q: What are the key differences between GLDA01D and D4A-3110N? A: The GLDA01D maintains exact electrical parity with the original GLFC01D (6A AC, 550mA DC), while the D4A-3110N provides higher current capacity (10A AC, 6A DC). The GLDA01D is a Honeywell product within the same GLS series, whereas the D4A-3110N is an Omron cross-manufacturer equivalent. The D4A-3110N features a Roller Plunger actuator instead of Lever/Roller configuration. Both parts are IP67 rated and RoHS compliant.

Q: Are there mechanical interface considerations when substituting these parts? A: The GLDA01D shares identical mounting type (Chassis Mount) and termination style (Screw Terminal) with the GLFC01D, ensuring mechanical compatibility. The D4A-3110N also uses Chassis Mount and Screw Terminal configuration but features a Roller Plunger actuator. Verify that the actuator geometry and operating position specifications align with the mechanical design of your application before final selection.

Q: What is the significance of the operating position and pretravel specifications? A: Operating position, pretravel, differential travel, and overtravel define the mechanical stroke characteristics of the switch. The GLFC01D has an operating position of 2.400" (61.0mm), while the GLDA01D operates at 1.409" (35.8mm) and the D4A-3110N at 2.205" (56.0mm). These differences affect the physical space required for actuator movement and the force profile during operation. Confirm that your mechanical linkage and enclosure accommodate the specific stroke characteristics of your selected substitute.

Q: Are all three parts RoHS compliant? A: Yes. The GLFC01D, GLDA01D, and D4A-3110N are all RoHS compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the inventory status for these parts? A: The GLFC01D (obsolete) has 1160 pieces in stock. The GLDA01D (active status) has 1150 pieces available. The D4A-3110N (active status) has 797 pieces in stock. Availability may change; verify current inventory with your supplier.