ABB SK825485-AF 110V 50HZ contactor

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ABB SK825485-AF 110V 50Hz Contactor

Introduction

The ABB SK825485-AF is a high-performance AC contactor designed for controlling and switching electrical circuits, especially motors, heating elements, lighting systems, and power distribution networks. With a rated control voltage of 110V AC, 50Hz, this contactor ensures reliable operation, long service life, and superior electrical performance in industrial automation and distribution systems.

Technical Specifications

• Model: SK825485-AF

• Control Voltage: 110V AC, 50Hz

• Rated Current: Typically 25A–40A (depending on application)

• Operational Voltage (Ue): up to 690V AC

• Poles: 3-pole main contacts

• Auxiliary Contacts: Configurations such as 1NO+1NC or 2NO+2NC available

• Mechanical Life: ~10 million operations

• Electrical Life: ~1 million operations (at rated load)

• Insulation Voltage (Ui): 1000V

• Mounting: DIN rail or panel mounting

• Protection Class: IP20 (higher with enclosure)

• Ambient Temperature: -25°C to +60°C

• Certifications: CE, IEC/EN 60947-4-1, UL

Features & Benefits

1. High-Performance Coil – 110V AC, 50Hz coil ensures fast and stable response.

2. Durability – Mechanical life up to 10 million operations; long electrical life.

3. Versatile Auxiliary Contacts – Available in multiple combinations for flexible control.

4. Modular Design – Compatible with overload relays and auxiliary modules.

5. Safe & Reliable – Strong insulation and heat resistance ensure safe operation.

6. Easy Installation – Suitable for DIN rail or screw mounting.

Applications

• Motor Control – Starting, stopping, and reversing motors.

• Industrial Automation – Power control in machinery and production lines.

• HVAC Systems – Controlling fans, pumps, and compressors.

• Building Distribution Systems – Lighting and load management.

• Energy & Power Systems – Switching and protection in power circuits.

Installation & Maintenance Notes

1. Correct Wiring – Ensure proper wiring and tighten terminals securely.

2. Avoid Overload – Operate within rated current limits to prevent damage.

3. Regular Inspection – Check contacts and terminals periodically for wear.

4. Environmental Conditions – Avoid excessive humidity, dust, or corrosive gases.

5. Operation Frequency – Keep within recommended switching frequency to extend service life.

The structure and details of the product：

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