ABB 21LA020070R1700 Contactor

Product Detailed Description

ABB Miniature Circuit Breakers (MCBs) are electromechanical devices designed to protect electrical circuits from damage caused by overcurrent, which typically results from an overload or short circuit. They automatically trip to interrupt the current flow when a fault is detected, preventing damage to the wiring, equipment, and potential fire hazards. ABB MCBs are available in various types (e.g., S200 series) with different tripping characteristics (B, C, D curves) to suit diverse applications, from residential to industrial installations. They are typically compact, modular devices for quick and secure mounting on DIN rails.

Product Parameters (Hypothetical Example for a typical MCB)

• Type: Miniature Circuit Breaker (MCB)

• Poles: 1P, 1P+N, 2P, 3P, 3P+N, 4P (e.g., 2 pole if "21" in the part number implies 2 poles)

• Rated Current (In): 0.5A to 63A (The "020070" could potentially hint at a current rating if interpreted in a specific way, e.g., 20.07A or derived from a series code, but this is pure speculation without context.)

• Rated Voltage (Ue): Up to 230/400V AC, 440V AC

• Tripping Characteristics: B, C, D curves

• B-curve: Tripping at 3-5 times In (for resistive loads, lighting)

• C-curve: Tripping at 5-10 times In (for general protection of circuits with inductive loads)

• D-curve: Tripping at 10-20 times In (for circuits with high inrush currents like motors, transformers)

• Breaking Capacity (Icn): Up to 6 kA, 10 kA, or higher (e.g., "70" might relate to 7000A or 7kA breaking capacity in some series, but again, speculative).

• Frequency: 50/60 Hz

• Mounting: DIN Rail (35mm)

• Terminal Type: Screw terminals

• Degree of Protection: IP20 (terminals), IP40 (enclosure with cover)

• Electrical Life: 10,000 cycles (typical)

• Mechanical Life: 20,000 cycles (typical)

• Standard Compliance: IEC/EN 60898-1, IEC/EN 60947-2

Product Advantages (General for ABB MCBs)

• High Reliability: Designed for consistent performance and long service life.

• Enhanced Safety: Provides effective protection against overloads and short circuits, preventing damage and improving electrical safety.

• Quick Installation: Modular design and quick snap-on DIN rail mounting save installation time.

• Compact Size: Space-saving design allows for higher density wiring in control panels.

• Clear Indication: Front-face indication of contact position (ON/OFF) for easy status checks.

• Global Compliance: Meets international standards, ensuring suitability for worldwide applications.

Precautions (General for MCBs)

• Correct Rating Selection: Always choose the MCB with the appropriate rated current and tripping curve that matches the load and cable size of the circuit it protects.

• Proper Installation: Install according to wiring diagrams and local electrical codes. Ensure terminals are tightened to the specified torque.

• Ventilation: Ensure adequate ventilation around the MCBs in the enclosure to prevent overheating, which can affect tripping characteristics.

• Regular Inspection: Periodically check for signs of damage, overheating, or loose connections.

• Do Not Override: Never attempt to override the tripping mechanism or use a higher-rated MCB than specified for the circuit.

• Environmental Conditions: Operate within specified temperature and humidity ranges.

Product Applications (General for MCBs)

• Residential Buildings: Protection of lighting, socket outlets, and appliance circuits.

• Commercial Buildings: Circuit protection in offices, shops, and public facilities.

• Industrial Plants: Protection of motor circuits (often in conjunction with motor starters), control circuits, and general power distribution.

• Machinery: Integrated into control panels of various machines for component protection.

• Data Centers: Circuit protection for servers and IT equipment.

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

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