ESB40-20N-01 ABB Modular Contactor 40A 2P NO 24V AC/DC Coil 1SAE341111R0120

The ESB40-20N-01 (1SAE341111R0120) is a 40A ABB modular contactor featuring 2-pole normally open configuration with a versatile 24V AC/DC coil, also known as a lighting contactor, heating contactor, or installation contactor. This compact DIN rail-mounted switching device is designed for reliable control of electrical loads up to 40 amps in commercial and industrial applications. With its hum-free operation and dual voltage coil compatibility, the ESB40-20N-01 delivers superior performance and installation flexibility for modern electrical systems.

Key Features

• 40A Current Rating: Handles substantial electrical loads safely, making it suitable for demanding commercial and industrial switching applications where reliable high-current control is essential.
• Dual AC/DC Coil Operation (24V): Eliminates the need for separate AC and DC variants, reducing inventory requirements while providing installation flexibility across different control system configurations.
• Hum-Free Design: Advanced coil technology ensures silent operation, eliminating noise pollution in office buildings, hospitals, and other noise-sensitive environments.
• Compact DIN Rail Mounting: Space-efficient 54mm width design maximises panel space utilisation while ensuring secure installation on standard 35mm DIN rails.
• 2-Pole Normally Open Configuration: Provides reliable switching for single-phase loads with positive isolation when de-energised, enhancing system safety.
• 16mm² Cable Capacity: Accommodates substantial cable sizes for high-current applications without the need for cable reducers or ferrules.
• Extended Temperature Range (-25°C to +55°C): Maintains reliable operation across extreme environmental conditions, suitable for both indoor and outdoor installations.

Applications

The ESB40-20N-01 modular contactor is extensively used for switching and controlling lighting circuits, heating systems, ventilation equipment, EV charging stations, motors, and pump installations. Its robust 40A rating makes it particularly suitable for commercial lighting control, HVAC systems, and industrial automation applications where reliable remote switching is required. The contactor excels in building management systems, distribution boards, and control panels across sectors including manufacturing, commercial buildings, and infrastructure projects.

Standards and Sustainability

This ABB modular contactor carries UKCA, CE, and UL certifications, ensuring compliance with British, European, and North American electrical standards. The unit features IP20 ingress protection for standard electrical enclosure applications.

Manufactured by ABB in Germany, order code ESB40-20N-01.

Frequently Asked Questions

What cable sizes can be connected to the ESB40-20N-01 modular contactor?

The ESB40-20N-01 can accommodate flexible cables up to 16mm² cross-sectional area, providing ample capacity for high-current 40A applications without requiring cable reducers or special termination accessories.

Can this contactor be used for both AC and DC control circuits?

Yes, the ESB40-20N-01 features a universal 24V AC/DC coil that operates on both alternating and direct current control supplies, eliminating the need to specify separate variants and reducing inventory complexity.

What are the physical dimensions for panel design purposes?

The contactor measures 54mm wide, 85mm high, and 64.8mm deep, with a net weight of 0.37kg. This compact footprint allows efficient use of DIN rail space in electrical panels and distribution boards.

Is this contactor suitable for outdoor installations?

The ESB40-20N-01 operates reliably across temperatures from -25°C to +55°C and features IP20 protection, making it suitable for indoor installations and outdoor applications when housed within appropriate weatherproof enclosures.

Where can I buy ESB40-20N-01 ABB Modular Contactor 40A 2P NO 24V AC/DC Coil 1SAE341111R0120 in the UK?

CSE Distributors is an official ABB franchised distributor with locations in Wooburn Green and Southampton, offering genuine products with full warranty. As a family-run business with over 50 years of experience, CSE provides expert technical support and has earned hundreds of positive customer reviews for their exceptional service and same-day dispatch capabilities.