PRODUCT DESCRIPTION
SIEMENS 5SD7432-5 - Miniature Circuit Breaker (MCB)
This SIEMENS SENTRON Miniature Circuit Breaker (MCB) provides essential overcurrent and short-circuit protection for electrical installations. Engineered for industrial and commercial applications, this 3-pole device features a D-curve tripping characteristic, making it suitable for circuits with high inrush currents such as motor loads, transformers, and lighting systems. It integrates into standard electrical distribution panels for reliable circuit isolation and protection in accordance with IEC/EN 60898-1.
Technical Specifications:
- SERIES/FAMILY: SENTRON
- COMPONENT TYPE: Miniature Circuit Breaker (MCB)
- ELECTRICAL SPECS:
- NOMINAL CURRENT: 32A
- POLES: 3-pole
- NOMINAL VOLTAGE: Up to 400/415VAC (Phase-to-Phase), 230/240VAC (Phase-to-Neutral)
- FREQUENCY: 50/60Hz
- TRIPPING CHARACTERISTIC: D-curve (High inrush current applications)
- SHORT-CIRCUIT BREAKING CAPACITY: Standard industrial (e.g., 6kA or 10kA, depending on specific sub-series)
- MECHANICAL/PHYSICAL:
- OPERATION: Manual toggle switch
- MODULAR WIDTH: Standard DIN 43880 (e.g., 3 modules for 3-pole)
- INTERFACE/CONTROL:
- FEEDBACK: Mechanical position indicator (ON/OFF)
- AUXILIARY CONTACTS: Not integrated (typically external add-on modules for status indication)
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (Terminal protection), IP40 (Front face when installed)
- MOUNTING STYLE: DIN rail mountable (EN 60715)
- AMBIENT TEMPERATURE: -25°C to +55°C (typical for MCBs)
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Industrial and commercial electrical distribution boards, control panels
- SPECIFIC MACHINE TYPES: Circuits supplying motors, transformers, X-ray equipment, and other inductive loads with high inrush currents
- STANDARDS: Conforms to IEC/EN 60898-1