RS Better World

Siemens IP67, IP66, IP69 Key Switch, SPST, 10A 2-Way Ronis-Key

RS Stock No.:: 135-5657
Mfr. Part No.:: 3SU1150-4BF11-1BA0
Manufacturer:: Siemens

Siemens IP67, IP66, IP69 Key Switch, SPST, 10A 2-Way Ronis-Key

Subtotal (1 unit)*

TWD4,598.00

(exc. GST)

TWD4,827.90

(inc. GST)

FREE delivery for orders over NT$1,300.00

In Stock

Plus 27 unit(s) shipping from October 12, 2026

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Units	Per unit
1 +	TWD4,598.00

*price indicative

Our Better World range features products that make it easy for you to make a greener product choice you can trust.

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RS Stock No.:: 135-5657
Mfr. Part No.:: 3SU1150-4BF11-1BA0
Manufacturer:: Siemens

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	Siemens
	Number of Positions	2
	Product Type	Key Switch
	Switch Operation	Latching
	Contact Configuration	SPST
	Switch Contact Current	10A
	IP Rating	IP67, IP66, IP69
	Key Type	Ronis
	Terminal Type	Screw
	Bezel Shape	Round
	Contact AC Voltage	500V ac
	Switch Configuration	SPST
	Key Index Angle	90°
	Standards/Approvals	CE, UL, CCC, CSA, EAC
	Better World Product	Yes
	Better World Claim	Extended Product Life, Low Carbon Manufacture
	Series	SIRIUS ACT
	Minimum Operating Temperature	-25°C
	Maximum Operating Temperature	70°C
	Mechanical Life	300000Cycles

	Select all
	Brand Siemens
	Number of Positions 2
	Product Type Key Switch
	Switch Operation Latching
	Contact Configuration SPST
	Switch Contact Current 10A
	IP Rating IP67, IP66, IP69
	Key Type Ronis
	Terminal Type Screw
	Bezel Shape Round
	Contact AC Voltage 500V ac
	Switch Configuration SPST
	Key Index Angle 90°
	Standards/Approvals CE, UL, CCC, CSA, EAC
	Better World Product Yes
	Better World Claim Extended Product Life, Low Carbon Manufacture
	Series SIRIUS ACT
	Minimum Operating Temperature -25°C
	Maximum Operating Temperature 70°C
	Mechanical Life 300000Cycles

COO (Country of Origin):: DE

Siemens SIRIUSACT Series Key Switch, 2 Positions, IP66 Protection Rating - 3SU1150-4BF11-1BA0

This key switch is a metal-operated device designed for secure control within automation and industrial environments. Featuring a round shape with a shiny silver finish, this switch operates with two positions and a latching mechanism, allowing for reliable performance. The robust construction enables operation in harsh conditions with an IP66, IP67, and IP69 rating, ensuring durability across various applications.

Features & Benefits

• SPST configuration provides a straightforward switching operation

• Latching design allows for secure and stable position retention

• High-temperature resistance up to +70°C ensures reliability

• Metal construction offers longevity and ruggedness

Applications

• Used for secure activation in industrial machinery

• Suitable for control panels in harsh environments

• Effective in electrical systems requiring dependable switch operations

• Ideal for automation setups that require reliable latching functionality

What type of key mechanism does this switch use?

The switch is equipped with a RONIS key type, allowing for secure locking and user-defined access control through the provided keys.

How does the IP rating affect its application?

With an IP66, IP67, and IP69 rating, it is designed to withstand dust, moisture, and high-pressure water, making it suitable for outdoor and industrial use where contaminants are present.

What is the maximum number of operating cycles for this device?

This switch boasts a mechanical life of approximately 300,000 cycles, ensuring it can handle extensive use in demanding applications without significant wear.

Can this switch be easily installed in existing systems?

Yes, the screw terminal type allows for easy connection with different conductor sizes, ensuring compatibility with a wide range of existing setups.