EATON drukschakelaar 3-polig MCSN11 instelbaar differentieel R1/2 MCSN11 (029203)

The MCSN11 stands apart from conventional pressure switches by combining a 3-pole changeover contact with a user-adjustable switching differential, giving precise control over pressure hysteresis in compressed air and water systems. Its robust polyamide housing and NBR diaphragm ensure reliable operation even in demanding environments, while the R 1/2" internal thread allows direct mounting without additional adapters.

Highlights

• 3-pole changeover contact (SPDT) for versatile switching of pumps, compressors, or alarm circuits
• Adjustable pressure range 0.2–1.1 bar with variable differential 0.1–0.4 bar to fine-tune cut-in/cut-out points
• Durable polyamide housing rated IP54, suitable for dusty or damp locations
• NBR diaphragm compatible with air, water, and non-aggressive fluids
• High electrical ratings: 230 V AC, 10 A (AC-15) / 230 V DC, 1 A (DC-13)
• Wide operating temperature range from -25 °C to +70 °C

In daily use

Installation is straightforward thanks to the R 1/2" process connection and clearly marked screw terminals. Once set, the switch maintains its calibration reliably, reducing the need for frequent adjustments. The 3-pole design allows simultaneous control of multiple circuits, making it ideal for small compressors, water pumps, and pneumatic control systems where space and reliability matter.

Full specifications

• Brand: EATON
• Model: MCSN11
• MPN: 029203
• EAN: 4015080292036
• Product type: Pressure switch
• Number of poles: 3-pole
• Contact type: Changeover contact (SPDT)
• Adjustable pressure range: 0.2 - 1.1 bar
• Adjustable switching differential: 0.1 - 0.4 bar
• Process connection: R 1/2" internal thread
• Maximum operating pressure: 16 bar
• Protection class: IP54
• Operating temperature range: -25 to +70 °C
• Rated operational voltage (AC): 230 V
• Rated operational current (AC-15): 10 A
• Rated operational voltage (DC): 230 V
• Rated operational current (DC-13): 1 A
• Housing material: Polyamide (PA)
• Diaphragm material: NBR (Nitrile Butadiene Rubber)
• Media compatibility: Air, water, non-aggressive fluids
• Electrical connection: Screw terminals

Final note

With its adjustable differential and robust construction, the MCSN11 is a dependable choice for OEMs and maintenance professionals seeking precise pressure control without complexity.