ASSA 4220.01 Microswitch kit Application Microswitch kit for ASSA 237 lever lock. Downloads ASSA-4220-01-Mikrobryt_MontAnv_OEM802311121 (.pdf, 199 kB) Close ASSA 4218.01 MicroswitchMicroswitch for ASSA 981 safe evacuation lock. ASSA 4217.01 MicroswitchMicroswitch for ASSA 379, 439 and 479 lever lock. ASSA 4216.01 MicroswitchMicroswitch for ASSA 309 and 318 lever lock. Do you want to create a safe lock environment? ASSA OEM has created "The lock guide by ASSA OEM", and it's made to give you knowledge and tips about approved lock sets. We really encouring poeple to read our tips and guidelines here: The lock guide Want to download our product catalogues? If you prefer to download our product catalogue - you can download it here! We also provide instructions, declarations and other documents in our download documents section.Check it out!