Honeywell Technologies HDLS Series Rotary Head Limit Switch, SPDT, IP67, Die Cast Zinc Epoxy Coated Housing, 240V ac,

RS Stock No.:: 193-2043
Mfr. Part No.:: LS4A3K-1B
Manufacturer:: Honeywell

Honeywell Technologies HDLS Series Rotary Head Limit Switch, SPDT, IP67, Die Cast Zinc Epoxy Coated Housing, 240V ac,

Subtotal (1 unit)*

HK$4,401.30

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Shipping from 20 January 2027

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Units	Per unit
1 +	HK$4,401.30

*price indicative

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Each

HK$3,741.50

RS Stock No.:: 193-2043
Mfr. Part No.:: LS4A3K-1B
Manufacturer:: Honeywell

Specifications

Product overview and Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Honeywell
	Actuator Type	Rotary Head
	Product Type	Limit Switch
	Contact Configuration	SPDT
	IP Rating	IP67
	Housing Material	Die Cast Zinc Epoxy Coated
	Contact Type	Snap Action
	Terminal Type	M20
	Switching Current	10A
	Series	HDLS
	Switching DC Voltage	24V dc
	Switching AC Voltage	240V ac
	Minimum Operating Temperature	-12°C
	Maximum Operating Temperature	121°C
	Width	41.1mm
	Length	106.7mm
	Standards/Approvals	CE, CSA, UL
	Depth	62mm
	Hazardous Area Certification	No
	Mounting Orientation	Front
	Mechanical Life	50000000Operations
	Operating Force	17.8N

	Select all
	Brand Honeywell
	Actuator Type Rotary Head
	Product Type Limit Switch
	Contact Configuration SPDT
	IP Rating IP67
	Housing Material Die Cast Zinc Epoxy Coated
	Contact Type Snap Action
	Terminal Type M20
	Switching Current 10A
	Series HDLS
	Switching DC Voltage 24V dc
	Switching AC Voltage 240V ac
	Minimum Operating Temperature -12°C
	Maximum Operating Temperature 121°C
	Width 41.1mm
	Length 106.7mm
	Standards/Approvals CE, CSA, UL
	Depth 62mm
	Hazardous Area Certification No
	Mounting Orientation Front
	Mechanical Life 50000000Operations
	Operating Force 17.8N

COO (Country of Origin):: US

Honeywell HDLS Series Limit Switch, IP67, 10A Switching Current - LS4A3K-1B

This limit switch provides rotary-actuated position detection for industrial control systems. Housed in a die-cast zinc enclosure with ingress protection suitable for harsh environments, it performs discrete switching tasks where a compact, front-mounted actuator is required. The device is built for repetitive mechanical operation and is applicable where snap-action contact behaviour and a simple changeover output are preferred.

Features and Benefits:

• SPDT snap-action contact for clear single-pole switching performance
• Rated for 10A at 240V AC enabling standard mains switching loads
• Switching capability at 24V DC for low-voltage control circuits
• Mechanical life rated to 50 million operations for extended service
• IP67 enclosure resists dust and temporary water immersion
• M20 Terminal entry supports secure glanded cable connections

Applications

• Suitable for conveyor end-of-travel detection on manufacturing lines
• Ideal for valve position monitoring in process plants
• Used with motor starters for limit-based interlocks
• Can be used for door or gate position sensing in access systems

What mounting orientation is required for correct operation?

It is designed for front mounting so the actuator is accessed from the device face during installation.

What operating temperature range can be expected in service?

The unit is specified for use between -12 °C and 121 °C, allowing operation in moderately cold to elevated temperature environments.

How much actuation force is needed to operate the mechanism?

The rotary head requires an operating force of 17.8 N to trip the internal contact mechanism.

What approvals cover electrical safety and market acceptance?

The switch carries CE, CSA and UL approvals, supporting deployment in multiple regulated markets.

Approvals

UL, CSA

Standards

EN60947-5-1, IEC947-5-1, AC15, A300 or A600 , DC13, Q300