ОПИСАНИЕ ПРОДУКТА
SIEMENS 3KF4340-0LF11 - Main and EMERGENCY STOP Switch
This device is a SIEMENS SIRIUS 3KF series 3-pole main and EMERGENCY STOP switch, rated for 400A. It is engineered for the safe disconnection of industrial machinery and systems from the power supply, ensuring compliance with safety standards for maintenance and repair operations. The unit features a door-coupling rotary operating mechanism with a red/yellow handle, suitable for EMERGENCY STOP functions, and includes integrated auxiliary contacts for status signaling within control circuits.
Technical Specifications:
- SERIES/FAMILY: SIRIUS 3KF
- COMPONENT TYPE: Main and EMERGENCY STOP Switch / Disconnect Switch
- ELECTRICAL SPECS:
- RATED OPERATIONAL CURRENT (Iu): 400A
- NUMBER OF POLES: 3-pole
- RATED OPERATIONAL VOLTAGE (Ue): Up to 690V AC
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 8 kV
- RATED FREQUENCY: 50/60 Hz
- MECHANICAL/PHYSICAL:
- MOUNTING TYPE: Front mounting, 4-hole fixing
- OPERATING MECHANISM: Door-coupling rotary operating mechanism
- HANDLE TYPE: Red/Yellow, lockable in OFF position
- TERMINAL TYPE: Screw terminals
- INTERFACE/CONTROL:
- AUXILIARY CONTACTS: 1 Normally Open (NO) + 1 Normally Closed (NC)
- LOCKING MECHANISM: Padlockable in OFF position (up to 3 padlocks)
- ENVIRONMENTAL/MOUNTING:
- IP RATING (FRONT): IP65 (with door-coupling handle)
- IP RATING (TERMINALS): IP20
- AMBIENT OPERATING TEMPERATURE: -25 to +55 degrees C
- MOUNTING POSITION: Any
- COMPATIBILITY/APPLICATION: Industrial control panels, machinery safety circuits, power distribution systems, motor control centers requiring local power disconnection and emergency shutdown capabilities.