ESB20-11N-06 ABB Modular Contactor 20A 2P 1NO+1NC 230V AC/DC Coil 1SBE121111R0611

The ESB20-11N-06 (1SBE121111R0611) is a 20A ABB modular contactor featuring 2-pole configuration with 1NO+1NC contacts and 230V AC/DC coil operation. This modular contactor, also known as a lighting contactor, heating contactor, or installation contactor, is designed for reliable switching and control in commercial and industrial electrical installations.

This ABB modular contactor provides dependable switching control for 20A loads across lighting, heating, ventilation, and motor control applications. Its hum-free AC/DC coil design ensures quiet operation in noise-sensitive environments, while the compact DIN rail mounting format makes it ideal for control panel installations where space efficiency is crucial.

Key Features

• Hum-Free AC/DC Coil Operation: Eliminates operational noise that can be disruptive in office buildings, hotels, and residential applications, ensuring quiet performance throughout the switching cycle.
• 20A Current Rating: Handles substantial loads including lighting circuits, heating elements, and small motor applications, providing reliable switching for demanding commercial installations.
• Dual Contact Configuration (1NO+1NC): Offers flexible wiring options with both normally open and normally closed contacts, enabling complex control sequences and safety interlocks in a single compact device.
• 230V AC/DC Coil Versatility: Compatible with both AC and DC control systems, providing installation flexibility and eliminating the need for separate contactors in mixed-voltage control panels.
• Compact DIN Rail Design: At just 17.8mm width, maximizes panel space utilization while maintaining full 20A switching capability, ideal for high-density control applications.
• 6mm² Cable Capacity: Accommodates substantial cable sizes for high-current applications without requiring cable reducers or adaptors, simplifying installation and improving connection reliability.
• Extended Temperature Range: Operates reliably from -25°C to +55°C, suitable for outdoor enclosures, plant rooms, and harsh industrial environments.

Applications

This modular contactor is widely utilized for switching and controlling lighting circuits in commercial buildings, heating systems in HVAC installations, ventilation equipment, EV charging stations, and motor-driven pumps. Common applications include office lighting control, warehouse heating systems, commercial kitchen ventilation, car park lighting, and building services automation where reliable remote switching is essential.

Standards and Compliance

The ESB20-11N-06 meets UKCA, CE, and UL certification standards, ensuring compliance with British, European, and North American electrical safety requirements. The IP20 rating provides protection against solid objects greater than 12.5mm, making it suitable for standard control panel installations.

Manufactured by ABB in Bulgaria, order code ESB20-11N-06 (1SBE121111R0611).

Frequently Asked Questions

What cable sizes can be connected to the ESB20-11N-06 modular contactor?

The ESB20-11N-06 accommodates flexible cables up to 6mm² cross-sectional area, providing ample capacity for 20A applications. This eliminates the need for cable reducers in most installations and ensures reliable electrical connections for both power and control circuits.

What is the difference between this modular contactor and a standard electromagnetic contactor?

The ESB20-11N-06 features a compact modular design at just 17.8mm width for DIN rail mounting, compared to larger electromagnetic contactors that require more panel space. Additionally, its hum-free AC/DC coil operation eliminates the buzzing noise common in traditional AC contactors, making it ideal for noise-sensitive environments.

Can this contactor be used for motor starting applications?

While the ESB20-11N-06 has a 20A current rating suitable for small motors, it is primarily designed as an installation contactor for lighting, heating, and general switching duties. For motor starting applications, consider ABB's dedicated motor contactors which include features like overload integration and higher breaking capacities specifically designed for motor loads.

What are the mounting dimensions and panel requirements?

The ESB20-11N-06 measures 85mm height × 17.8mm width × 64.8mm depth and mounts on standard 35mm DIN rail. Its compact 17.8mm width allows multiple units to be installed in tight panel spaces, and the lightweight 0.14kg construction minimizes mounting hardware requirements.

Where can I buy ESB20-11N-06 ABB Modular Contactor 20A 2P 1NO+1NC 230V AC/DC Coil 1SBE121111R0611 in the UK?

CSE Distributors is an official franchised ABB distributor with locations in Wooburn Green and Southampton, offering genuine products with full warranty support. With over 50 years of family-run service and hundreds of positive reviews, CSE provides expert technical support and same-day dispatch from their extensive warehouse facilities.