Control systems Pneumatic actuators
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Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2015
TI-P369-01 CH Issue 3
SLM1, SLM2, SLI1 and SLI2 Limit Switches
Description The switch kits are for use with linear pneumatic actuators conforming to the NAMUR standard. The series provides switched electric or variable resistance outputs, relative to the valve actuator position.
How to choose the right limit switch for your actuator and application: Identify the actuator and valve travel Example:
If the travel < = 30 mm then choose between an SLM1, SLI1 or SLI2
Example: 250 Vac and 3 A = > Choose between an SLM1 or SLM2 Example: 2 sensors open / close in inductive = > Choose an SLI1
Identify your electronic signal requirements
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Make your choice between the inductive or mechanical and if you require one or two sensors.
Example: Yes = > Choose between an SLI1 or SLI2
Do you need ATEX certification ?
Applications and technical data The switch kits series can be used with the following Spirax Sarco actuators using the fixing kit specified:
SLM1
SLM2
SLI1
SLI2
Limit switches
This switch consist of two mechanical micro-switches within a single unit to provide valve actuator position (open / close) after setting
This switch consist of two mechanical micro- switch units to provide valve actuator position (open / close) after setting
This switch consist of two proximity sensors within a single unit to provide valve actuator position (open / close) after setting
This switch consist of two proximity sensors to provide valve actuator position (open / close) after setting
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• •
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Travel < = 30 mm
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Travel > = 30 mm
24 Vac 6 A to 250 Vac 3 A
ac
250 Vac 16 A
0.1 A
0.1 A
Maximum voltage and current
12 Vdc 10 A to 230 Vdc 5 A
dc
48 Vdc 16 A
30 Vdc
30 Vdc
TI-P369-01 CH Issue 3
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SLM1, SLM2, SLI1 and SLI2 Limit Switches
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