Tubular solenoids are a popular choice for applications that require a compact size with performance that matches or exceeds the larger open frame solenoid designs for a given size.
The tubular solenoid is more magnetically efficient due to the coil being enclosed by a high permeable steel tubular case to minimize magnetic flux leakage and maximize performance.
PDFs: gt0639_technical_data.pdf Safety_-_Security_Solenoid_App_Sheet_Apr11(EN)-pdf.pdf
