CFB2sLE-63 RCCB Earth Leakage Circuit Breaker
Product Overview
This circuit breaker is a low-voltage protection device designed for AC 50/60Hz power distribution networks with rated voltages up to 400V and currents up to 63A, suitable for industrial, commercial, and residential electrical systems. It integrates comprehensive safety and operational safeguards: High-sensitivity Residual Current Detection (RCD) technology provides indirect contact protection to mitigate electric shock risks, while overload long-time delay protection and short-circuit instantaneous tripping ensure precise fault current interruption, preventing equipment damage and fire hazards. The device also supports infrequent circuit switching and intermittent motor start-stop operations, meeting flexible control demands in standard power distribution scenarios.
Key Features & Applications
Featuring a modular compact design compatible with global power standards, it is ideal for data centers, manufacturing facilities, and building distribution panels, particularly in environments requiring high power continuity and safety. The thermomagnetic dual-protection mechanism guarantees stable overload response and rapid short-circuit breaking, enhanced by 50/60Hz frequency compatibility for robust system reliability. With a durable construction and rail-mounted quick installation, it serves as a reliable solution for modern smart grids, balancing safety, efficiency, and ease of maintenance.
Model:CFB2sLE-63
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Product Description
Product Description
Scope of application
♦ Suitable for distribution network circuits with AC 50/60Hz, rated working voltage of 400V and below, and rated current up to 63A and below;
♦ Provide indirect contact protection for humen being;
♦ Provide leakage protection for equipment;
♦ Overload and short circuit protection for lines and power equipment;
♦ Under normal circumstances, it can be used for infrequent switching of Circuits and infrequent starting of motors.
♦ Compliant with standards:
International standards:IEC61009-1;
National standard:GB/T16917.1.
Working condition
◇ Altitude: ≤2000m;
◇ Environmental humidity: not exceeding 50% at a maximum ambient temperature of+40 ℃, with higher relative humidity possible at lower temperatures, such as reaching 90% at 20 ℃, taking into account condensation on the product surface due to temperature changes;
◇ Installation conditions: The external magnetic field of the installation site should not exceed 5 times the geomagnetic field in any direction. The residual current circuit breaker should generally be installed vertically, with the handle facing upwards to connect to the power supply. The installation location should have no significant impact or vibration;
◇ Installation category: II;
Installation type: TH35-7.5 standard guide rail installation is adopted;
◇ Pollution level: 2;
◇ Wiring method: Use screws to tighten the wiring.
Specifications and parameters
♦ Pole numbers: 1P+N, 2P, 3P, 3P+N, 4P;
♦ Rated current In (A): 6,10,16,20,25,32,40,50,63;
♦ Rated working voltage Ue: 230V, 400V;
♦ Rated insulation voltage Ui: 400V;
♦ Rated breaking capacity Icu (kA): 6kA;
♦ Rated residual connection and disconnection capacity l △ m: 2000A;
♦ Rated residual operating current l △ n (mA): 30;
♦ Mechanical lifespan: 20000 cycles;
♦ Electrical lifespan: 10000 cycles;
♦ Protection level:IP20;
♦ Installation method: embedded guide rail;
♦ Wiring method: Wiring terminals with clamps;
♦ Wiring capability: Allow wires below 16mm2 to be connected (when Inm=63A);
♦ Tightening torque: 2N • m (when Inm=63A);
♦ The maximum breaking time of rated residual current is t: 0.1s.
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