PRODUCT DESCRIPTION
ALLEN BRADLEY 1492-RCDA4A40-US - Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
The ALLEN BRADLEY 1492-RCDA4A40-US is a 4-pole, Type A Residual Current Circuit Breaker with Overcurrent Protection (RCBO) from the 1492-RCD series, designed for combined protection against overcurrents (overload and short-circuit) and earth leakage currents. This electromechanical device provides critical safety functionality in industrial control panels, machinery, and commercial installations, safeguarding both personnel and equipment from electrical faults. It is engineered for DIN rail mounting within electrical distribution systems requiring UL/CSA compliance.
Technical Specifications:
- SERIES/FAMILY: 1492-RCD Series
- COMPONENT TYPE: Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
- ELECTRICAL SPECS:
- NOMINAL CURRENT: 40A
- POLES: 4-Pole
- RESIDUAL CURRENT TYPE: Type A (Sensitive to AC sinusoidal and pulsating DC fault currents)
- NOMINAL VOLTAGE: 230/400VAC or 277/480VAC (Typical for 4-pole industrial applications)
- TRIPPING CHARACTERISTIC: A-curve (Instantaneous trip current typically 2 to 3 times nominal current)
- RATED SHORT-CIRCUIT BREAKING CAPACITY (Icn): 6kA or 10kA (Typical, dependent on specific model variant)
- RATED RESIDUAL OPERATING CURRENT (IΔn): 30mA, 100mA, or 300mA (Typical, not specified in part number)
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Modular DIN Rail Mount
- TERMINAL TYPE: Screw Terminals
- INTERFACE/CONTROL:
- INDICATORS: Mechanical Trip Status Flag (ON/OFF/TRIP)
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (Terminals), IP40 (Front Enclosure)
- MOUNTING STYLE: 35mm DIN Rail
- OPERATING TEMPERATURE: -25°C to +55°C (Typical)
- COMPATIBILITY/APPLICATION:
- APPLICATIONS: Industrial and commercial electrical distribution, motor control centers, machinery protection, circuits requiring combined overcurrent and earth fault protection for AC and pulsating DC loads.
- STANDARDS: UL Listed, CSA Certified (Indicated by -US suffix)