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1SBE121111R0111 ABB ESB20-11N-01 Installation Contactor 1NO/1NC 20 A 24 V AC/DC
ABB ESB20-11N-01 is a 20 A two-pole installation contactor with 1NO and 1NC main contacts and a 24 V AC/DC control circuit for automated single-phase electrical load switching.
£44.64
Why Choose the ABB ESB20-11N-01 Installation Contactor?
The ABB ESB20-11N-01 is a compact and reliable 20 A installation contactor designed for controlled switching of single-phase electrical loads in residential, commercial and industrial applications. As part of the proven ABB ESB20..N installation contactor series, it combines one normally open and one normally closed main contact with low-voltage AC/DC control for dependable automated switching.
This modular contactor features hum-free operation, low power consumption and integrated overvoltage protection, helping provide quiet and efficient operation in distribution boards and control panels. Its compact single-module format and screw terminals simplify installation while providing a robust solution for building automation and industrial control systems.
With an AC-1 / AC-7a rated operational current of 20 A, 1NO + 1NC main contacts and a 24 V AC/DC control voltage, the ESB20-11N-01 is suitable for switching lighting, heating, ventilation equipment and other electrical loads where low-voltage control is required.
Key Advantages
- Compact 20 A modular installation contactor for automated load switching.
- 1NO + 1NC contact configuration provides normally open and normally closed switching functions.
- 24 V AC/DC control voltage supports low-voltage control circuits.
- Designed for hum-free operation in household and industrial environments.
- Low power consumption supports efficient control-system operation.
- Integrated overvoltage protection supports dependable control circuit operation.
- Single-module DIN-rail design saves space in distribution boards and control panels.
Key Features
- ABB ESB20..N installation contactor series.
- 20 A AC-1 / AC-7a rated operational current.
- 2-pole configuration with 1NO + 1NC main contacts.
- 24 V AC/DC rated control circuit voltage.
- 9 A AC-3 rated operational current at 230 V single-phase.
- 1.3 kW AC-3 rated operational power at 230 V single-phase.
- Hum-free operation with low power consumption.
- Integrated overvoltage protection.
- DIN-rail mounting for modular electrical installations.
- Screw terminals for secure conductor connections.
Reliable Switching for Electrical Loads
Installation contactors provide electrically controlled switching for loads that need to be operated automatically or remotely. The ABB ESB20-11N-01 combines a compact modular format with a 24 V AC/DC control circuit, allowing it to integrate with compatible switches, timers, relays and building or industrial control systems.
The ESB20..N series is designed for household applications as well as industrial environments. Its hum-free operation makes it particularly suitable for installations where acoustic comfort is important, while low power consumption and integrated overvoltage protection support dependable long-term switching.
Typical Applications
- Residential and commercial lighting control.
- Electric heating and water-heating systems.
- Ventilation and building-services equipment.
- Low-voltage automated control systems.
- Electrical distribution boards and control panels.
- Industrial and building automation systems.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Series | ESB20..N Installation Contactors | |
| ABB order code | 1SBE121111R0111 | |
| Product type | Installation contactor | |
| Number of poles | 2 | |
| Main contacts | 1NO + 1NC | |
| Rated operational current (AC-1 / AC-7a) | 20 A | |
| Rated control circuit voltage | 24 V AC/DC | |
| Rated operational current (AC-3, 230 V single-phase) | 9 A | |
| Rated operational power (AC-3, 230 V single-phase) | 1.3 kW | |
| Rated insulation voltage | 800 V | |
| Rated short-time withstand current | 72 A for 10 s | |
| Coil consumption | 2.5 VA at 50 / 60 Hz | |
| Terminal type | Screw terminals | |
| Mounting type | DIN rail | |
| Width | 1 modular spacing | |
| Operating ambient temperature | -25 to +55 °C | |
| Dimensions (H × W × D) | approx. 85 × 17.8 × 68 mm | |
| Weight | approx. 0.14 kg | |
| EAN | 3471523007345 |
Frequently Asked Questions
What is the ABB ESB20-11N-01 used for?
The ESB20-11N-01 is an installation contactor used for electrically controlled switching of single-phase loads such as lighting, heating, ventilation equipment and other building or industrial electrical loads.
What is the current rating of the ESB20-11N-01?
The contactor has an AC-1 / AC-7a rated operational current of 20 A.
What contact configuration does this contactor have?
The ESB20-11N-01 has one normally open (1NO) and one normally closed (1NC) main contact, providing both normally open and normally closed switching functions.
What control voltage does the ESB20-11N-01 require?
The contactor is designed for a 24 V AC/DC control circuit, allowing operation from a compatible low-voltage AC or DC control supply.
How is the ABB ESB20-11N-01 installed?
The contactor has a compact single-module design for DIN-rail mounting in electrical distribution boards and control panels and uses screw terminals for conductor connections.
Trusted ABB Switching Technology
ABB ESB installation contactors provide compact, efficient and dependable load switching for residential, commercial and industrial electrical systems, combining flexible AC/DC control with quiet operation and straightforward DIN-rail installation.
