Contactor ESB20-20N-01, 20A (AC-1/AC-7a), 9A (AC-3), 24V AC/DC, 2NO 1SBE121111R0120

Modular contactor for reliable circuit control

This ABB ESB series modular contactor is a compact and efficient solution for controlling electrical circuits. Designed for both home and industrial applications, it provides reliable switching of loads. Its modular design simplifies mounting on a DIN rail, saving time and space in the distribution board.

Characteristics and application

The ESB20-20N-01 contactor with a rated current of 20A (AC-1/AC-7a) and 9A (AC-3) is ideal for controlling various loads such as lighting, heaters, pumps or motors. A coil powered by 24V AC/DC provides versatility and compatibility with different control systems. Two normally open contacts (2NO) allow for the implementation of simple switching functions. Thanks to its compact dimensions (1 module wide), it is perfect for tight spaces.

Advantages and design features

• Compact size: A width of only 1 module allows for efficient use of space in control cabinets.
• Universal coil voltage: The ability to power the coil with both AC and DC voltage (24V) increases installation flexibility.
• High reliability: A product of the ABB brand, a synonym for quality and durability in the electrical industry.
• Easy installation: Design adapted for quick mounting on a standard DIN rail.
• Silent operation: Ensures quiet operation of the device, which is important in some applications.
• Protection class IP20: Protection against contact with fingers and against the ingress of solid objects larger than 12.5 mm – standard protection for devices mounted inside control cabinets.
• Utilization category AC-1 / AC-7a: Suitable for switching resistive and inductive loads without inrush current (AC-7a).
• Rated operating voltage: 220…250 V – the voltage range ensures compatibility with most electrical installations.
• Possibility of additional equipment: The contactor can be expanded with additional accessories, such as mechanical interlocks or auxiliary contacts.

This contactor is a solid choice for installers looking for a reliable component for building safe and efficient control systems. Its versatility makes it suitable for many different applications, from simple home installations to more advanced industrial systems.