Industrial MHA4-MS1H-3 2G-4-K-SA Safety Switch

The MHA4-MS1H-3/2G-4-K-SA from Festo is a compact 3/2 closed, monostable solenoid valve designed for precise pneumatic control in automation systems. It operates from a 24 V DC coil, features direct actuation, and is intended for through‑hole mounting with an 18 mm installation width and a 24 mm grid spacing, while delivering a nominal 4 mm port size for quick, reliable actuation. The valve provides a nominal flow of 400 L/min (DIN 1343) and supports a wide pneumatic operating range from −0.09 MPa to 0.8 MPa (−0.9 to 8 bar), making it suitable for compact cylinder and actuator applications. Exhaust is throttlable, allowing you to tune venting to your circuit’s needs, and the unit is IP65 protected for dust and water resistance in typical industrial environments. Manual override is a finger‑touch type for occasional manual operation, and the valve ports are configured as P (pressure supply), A (actuator), and R (exhaust).