ОПИСАНИЕ ПРОДУКТА
SIEMENS 5SD7444-1 - Residual Current Circuit Breaker (RCCB)
This SIEMENS SENTRON 5SD7444-1 is a 4-pole, Type A Residual Current Circuit Breaker engineered for robust protection against hazardous residual currents in industrial and commercial electrical installations. It provides critical safety functionality by detecting both AC sinusoidal and pulsating DC residual currents, ensuring rapid disconnection to prevent electric shock and mitigate fire risks. This device is integral for compliance with electrical safety standards in power distribution systems, machinery control panels, and building infrastructure.
Technical Specifications:
- SERIES/FAMILY: SENTRON
- COMPONENT TYPE: Residual Current Circuit Breaker (RCCB)
- ELECTRICAL SPECS:
- RATED CURRENT: 40A
- RATED RESIDUAL CURRENT: 30mA
- POLES: 4-pole
- RATED VOLTAGE: 400V AC (230/400V AC)
- RATED FREQUENCY: 50/60 Hz
- SHORT-CIRCUIT STRENGTH: 10 kA
- TRIPPING CHARACTERISTIC: Type A (AC sinusoidal and pulsating DC residual currents)
- MECHANICAL/PHYSICAL:
- MOUNTING: DIN Rail (EN 60715)
- TERMINAL TYPE: Screw terminals
- MODULE WIDTH: 4 standard modules (72 mm)
- INTERFACE/CONTROL:
- INDICATOR: Position indicator (ON/OFF), Tripped indicator
- TEST FUNCTION: Integrated test button
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (terminals), IP40 (front panel)
- AMBIENT OPERATING TEMPERATURE: -25 to +45 degrees C
- COOLING METHOD: Natural convection
- COMPATIBILITY/APPLICATION:
- APPLICATION: Protection against electric shock, fire protection, system protection
- TARGET SYSTEMS: Industrial power distribution, commercial buildings, machinery, HVAC systems, lighting circuits