721D-R1A-B025_ABB_PRODUCT_吉林易择科技技术发展有限公司

Parameters: Model Number: 721D-R1A-B025 Rated Voltage: 600 V AC (Maximum rated voltage) Rated Current (In): 25 A Rated Frequency: 50/60 Hz Poles: 3P (Three-pole) Breaking Capacity: 25 kA at 480 V AC (short-circuit breaking capacity) 10 kA at 600 V AC Protection Type: Thermal-magnetic (overload and short-circuit protection) Thermal Protection Setting: Adjustable, between 100% and 120% of rated current Magnetic Protection: Instantaneous short-circuit protection (with time delay for overloads) Trip Characteristics: B Type – Trips at 3-5 times rated current (for general applications, providing a balance between protection and inrush current tolerance). Dimensions (H x W x D): Approx. 105 x 60 x 110 mm (depending on the specific configuration) Weight: Approx. 0.6 kg Degree of Protection: IP20 (Protected against solid objects >12 mm in diameter, suitable for indoor use) Mounting Type: Panel mount or DIN rail mount (for flexible installation options) Control Voltage: 230 V AC (for control circuits) Operating Temperature Range: -5°C to +40°C (operating ambient temperature) Certifications: UL Listed, CE marking, IEC Compliant

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DESCRIBE

The ABB 721D-R1A-B025 is a model from ABB’s Molded Case Circuit Breaker (MCCB) range, which provides protection for electrical circuits by detecting and interrupting faults like overloads, short circuits, and ground faults. These circuit breakers are widely used in industrial, commercial, and residential electrical installations to ensure safe operation and to protect equipment from electrical damage.

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