ABB B7-30-10 Three-pole contactor

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1. Product Description

The ABB B7-30-10 is a three-pole contactor used for remote switching of three-phase load circuits in industrial electrical control systems. It features a compact design, reliable operation, and long service life. Suitable for motor control, lighting, power distribution, and various industrial automation applications, the contactor operates via electromagnetic pull-in and spring return, providing fast and stable circuit switching.

2. Technical Specifications

• Model: B7-30-10

• Type: Three-Pole Contactor

• Rated Voltage: AC 690 V

• Rated Current: 30 A (AC-1)

• Contact Configuration: 3 NO (normally open) contacts

• Rated Power: AC-3: 7.5 kW / 400 V

• Coil Voltage: AC 24–240 V / DC 24–220 V

• Mechanical Life: ≥ 1,000,000 operations

• Electrical Life: ≥ 100,000 operations

• Mounting: DIN rail 35 mm or screw mounting

• Operating Temperature: –25°C to +55°C

• Protection Rating: IP20

• Housing Material: Flame-retardant plastic

• Operation Type: Electromagnetic pull-in, spring return

3. Features & Advantages

• High reliability with precise coil and contact design

• Long mechanical and electrical life

• Compact design for tight control cabinet layouts

• Wide voltage compatibility (AC/DC coil)

• Easy installation with DIN rail or screw fixing

• Strong anti-interference performance in industrial environments

4. Application Areas

• Industrial automation control systems

• Motor start/stop control

• Three-phase load distribution control

• Lighting and power systems

• Machinery control circuits

• Automated production lines

5. Precautions

1. Disconnect power before installation or maintenance.

2. Ensure terminals are securely connected to prevent poor contact.

3. Avoid prolonged exposure to humidity, dust, or corrosive gases.

4. Do not exceed contact ratings; ensure compatibility with load.

5. Inspect contact wear periodically and replace if necessary.

6. Avoid electrostatic discharge during installation and maintenance.

The structure and details of the product：

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