SKU: SK-100

Limit Switch Box for Pneumatic Actuator


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The SK-100 series of limit switch box is a multifunctional unit that gives panaoramic visual indication of the valve position as well as an electrical feedback from two micro switches. The terminal strip and twin conduit entry points allow a solenoid valve and micro switches to be wired up through a single multi core cable. This comes standard with a stainless steel mounting bracket (to suit 80mm x 30mm mounting). For other sizes see the mounting bracket section in the below table.

Item Standard
Enclosure Weatherproof IP67/NEMA4 & 4X
Temperature -20°C to 80°C
Conduit Entries 2 x M20
Terminal Strips 8 points (.08-2.5mm²)
Position Indicator Closed: Red, Open: Yellow
Switches Mechanical switch x 2 SPDT
External Coating Polyester powder coating (black)
Shaft ISO Standard (17mm long)
Housing Powder coated die cast aluminium
Cam Quick Set spring loaded splined cam (no need to adjust again after initial setting, set without tools)
Mounting Interface Namur
Max Current 10 AMP AC, 2 AMP DC
Mounting Bracket Standard SK-1 Bracket included to suit 80mm x 30mm Mounting with 30mm height (to suit DA/SR 50 to 100). For sizes DA/SR 115 to 240, an additional bracket is required (see SK Bracket and SK-M adjustable bracket options)

 Pneumatic Limit Switch Box Wiring Diagrame

Pneumatic Limit Switch Box Dimensions

Powder coated aluminum body. IP67 protection.
Two M20 cable entry. High visability dome indicator.
Two single pole double throw voltage free switches.
Max current 10 AMP AC, 2 AMP DC
Part Material
Body Aluminium die cast
Shaft Stainless Steel
Indicator Cover Polycarbonate
Indicator ABS/Polycarbonate
Cam Polycarbonate
Spring Stainless Steel
Housing cover bolt Stainless Steel
O-Ring NBR
Bushing Bronze
E-Ring (shaft) Stainless Steel
Earth Lug Stainless Steel
Bracket Stainless Steel

 Limit Switch Box Conduit Entries

Limit Switch Box Position Indicator


Function Limit Switch Box
Switches 2 x SPDT
Body Powder Coated Aluminium
IP Rating IP66