ABB SBL156001R2110 contactor

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1. Product Model & Basic Introduction

The product model is ABB 1SBL156001R2110 (series AF12Z-30-10-21). This is a 3-pole power contactor manufactured by ABB, designed for low-voltage switching of three-phase power circuits or motor loads.

2. Technical Specifications

• Model: 1SBL156001R2110 (AF12Z-30-10-21).

• Poles: 3 main contacts + 1 built-in normally-open auxiliary contact (NO).

• Rated control supply voltage: AC 24-60 V (50/60 Hz); DC 20-60 V.

• Main circuit rated voltage: Up to 690 V AC (IEC) or 600 V (UL/CSA).

• Rated operational current (Ie): AC-1 at 690 V: 28 A (at 40 °C ambient).

• Rated operational current (AC-3) at 400 V: 12 A.

• Rated operational power (AC-3) at 400 V: 5.5 kW.

• Rated insulation voltage (Ui): 690 V (IEC).

• Rated impulse withstand voltage (Uimp): 6 kV.

• Mounting: DIN-rail (TH35) or screw mounting.

• Connection: Screw terminals for main, auxiliary and control circuits.

• Environmental/Usage conditions:

  • Ambient installation temperature: -40 °C to 70 °C (without thermal relay compensation).

  • Maximum operating altitude: 3000 m (without derating).

3. Advantages and Features

• Wide control voltage flexibility: Coil operates over AC 24-60 V or DC 20-60 V — suitable for variable control supply environments.

• High power switching capacity: Ability to switch up to 690 V AC main circuits, broadening application scope.

• Compact size design: Space-saving in control panels.

• Built-in auxiliary contact: Provides convenient feedback/control expansion.

• Flexible installation: Can mount on DIN-rail or via screws, adapting to multiple installation styles.

• Compliance with international standards: Designed in accordance with IEC/EN 60947-1 and IEC/EN 60947-4-1, as well as UL/CSA standards — ensuring safety and reliability.

• Strong environmental tolerance: Suitable for wide ambient temperature range and higher altitude operation.

4. Typical Application Areas

• Three-phase motor starting control (e.g., pumps, fans, compressors) where main circuit switching is needed.

• Branch circuit control in industrial power distribution systems.

• Control panels for building automation and variable frequency drive ancillary contactors.

• Production line equipment switching in factory automation.

• Control cabinets in filling, packaging, printing machinery and similar industrial equipment.

5. Usage Notes & Precautions

• Ensure that the main circuit voltage and current fall within the specification of the contactor, especially for AC-3 motor loads.

• Confirm that the control coil voltage matches the intended supply voltage, and operate within the specified range.

• Installation location should provide adequate ventilation, minimal vibration, and no corrosive gas; ensure screw terminal connections are properly tightened.

• Use cables of suitable cross-section for main and control circuits, and observe correct strip length and ferrule usage as per manufacturer's recommendation.

• If the installation altitude exceeds 3000 m or ambient temperature is extreme (high or low), consider de-rating or using appropriate specification product.

• For high switching frequency applications, verify the durability rating and expected life of the contactor.

• During maintenance, always isolate power before working; periodically inspect for contact wear, excessive heat, or loose connections.