Siemens 3RK1903-1BA00

The Siemens product with catalog number 3RK1903-1BA00 is a safety module designed for use with motor starter power modules. Known as the PM-D F1, this module supports fail-safe operation up to Safety Category 4 according to EN954-1 standards, ensuring a high level of protection during monitored start and emergency stop functions. It is compatible with the TM-PF30 interface and operates at 24 VDC with a 30 mm form factor. Although this particular module has been phased out since October 2020, it remains a reliable choice for specific safety automation setups. You can find this product distributed through BSP Automation, where expertise in industrial components can support your application needs.