PRODUCT DESCRIPTION
SIEMENS 3KA7155-4AA00 - Main and EMERGENCY-STOP Switch
This SIEMENS SIRIUS 3KA7 series main and EMERGENCY-STOP switch provides reliable manual disconnection for industrial machinery and control panels. Engineered for safety and operational control, it facilitates the isolation of electrical circuits, ensuring compliance with safety standards for maintenance and emergency shutdown procedures. The device integrates a robust rotary operating mechanism suitable for critical power interruption applications in manufacturing, process automation, and material handling systems.
Technical Specifications:
- SERIES/FAMILY: SIRIUS 3KA7
- COMPONENT TYPE: Main and EMERGENCY-STOP Switch
- ELECTRICAL SPECS:
- RATED OPERATIONAL VOLTAGE (Ue): 690VAC
- RATED OPERATIONAL CURRENT (Ie) at AC-23 A, 400V: 55A
- NUMBER OF POLES: 3-pole
- RATED FREQUENCY: 50/60 Hz
- MECHANICAL/PHYSICAL:
- ACTUATOR TYPE: Rotary operating mechanism
- ACTUATOR COLOR: Red/Yellow (for EMERGENCY-STOP identification)
- LOCKING MECHANISM: Lockable in OFF position (with up to 3 padlocks)
- SWITCHING ANGLE: 90 degrees
- INTERFACE/CONTROL:
- AUXILIARY CONTACTS: Not integrated in base unit typically available as add-on modules
- ENVIRONMENTAL/MOUNTING:
- IP RATING (FRONT): IP65 (with appropriate enclosure/panel sealing)
- MOUNTING STYLE: Front panel mounting, 4-hole fixing
- COOLING METHOD: Natural convection
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Industrial machinery, motor control centers, power distribution panels, safety circuits
- CORE FUNCTION: Main circuit disconnection, emergency power cut-off, maintenance isolation