3LD3448-1TK53 SIEMENS

The 3LD3448-1TK53 from Siemens is a robust and reliable 3-pole load disconnector switch designed for main switch applications. It boasts a rated operational current (Iu) of 63A, making it suitable for demanding industrial environments. Specifically engineered for AC-23A utilization category at 400V, this switch delivers a substantial rated operating capacity of 22.0 kW. Its primary function is to safely disconnect electrical loads, ensuring equipment and personnel safety during maintenance or emergencies. The switch is designed for floor mounting and features a basic switch configuration with door coupling for enhanced safety and accessibility. A central hole mounting with a 22.5mm diameter simplifies installation. Operation is facilitated by a user-friendly red/yellow rotary actuator, sized at 66 x 66 mm for easy gripping and clear visual indication of the switch position. Furthermore, it includes an integrated auxiliary switch with 1 normally open (NO) and 1 normally closed (NC) contact, providing additional signaling capabilities for remote monitoring and control. This auxiliary switch enhances the overall functionality and integration of the 3LD3448-1TK53 within complex electrical systems.