Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SBE121111R0520 ABB ESB20-20N-05 Installation Contactor 2NO 20 A 240 V AC/DC
ABB ESB20-20N-05 is a 20 A two-pole installation contactor with 2NO main contacts and a 240 V AC/DC control circuit for automatic and remote switching of single-phase electrical loads.
£39.99
Why Choose the ABB ESB20-20N-05 Installation Contactor?
The ABB ESB20-20N-05 is a compact 20 A installation contactor designed for automatic control of single-phase electrical loads in residential, commercial and industrial applications. Part of the ABB ESB20..N installation contactor series, it combines two normally open main contacts with flexible AC/DC control for dependable automated switching.
Its integrated coil circuitry allows operation from compatible AC or DC control supplies while providing hum-free operation, low power consumption and integrated overvoltage protection. With a compact 18 mm installation width, the ESB20-20N-05 is particularly well suited to distribution boards and modular control panels where space-efficient switching is required.
With an AC-1 rated operational current of 20 A, 2NO main contacts and a 240 V AC/DC control voltage, the ESB20-20N-05 provides a dependable solution for remotely or automatically switching lighting, electric heating, water heaters, ventilation, pumps and other compatible electrical loads.
Key Advantages
- Compact 20 A modular installation contactor for automated load switching.
- 2NO contact configuration provides two normally open switching contacts.
- 240 V AC/DC control voltage supports compatible AC and DC control systems.
- Integrated coil circuitry provides hum-free and quiet operation.
- Low power consumption supports efficient control-system operation.
- Integrated overvoltage protection helps protect the control circuit.
- Compact 18 mm width saves space in distribution boards and control panels.
Key Features
- ABB ESB20..N installation contactor series.
- 20 A AC-1 rated operational current.
- 2-pole configuration with 2NO main contacts.
- 240 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.
- 6 kV rated impulse withstand voltage.
- Mechanical durability of 1,000,000 cycles.
- IP20 protection rating.
- DIN-rail mounting with screw terminals for straightforward installation.
Reliable Switching for Electrical Loads
Installation contactors provide electrically controlled switching for loads that need to operate automatically or remotely. The ABB ESB20-20N-05 combines a compact modular format with a 240 V AC/DC control circuit, allowing integration with compatible switches, timers, relays and building or industrial automation systems.
The ESB20..N series is designed for household applications as well as industrial environments. Its integrated coil circuitry enables AC or DC control while providing hum-free operation, low power consumption and integrated overvoltage protection for dependable long-term switching.
Typical Applications
- Residential and commercial lighting control.
- Electric heating and water-heating systems.
- Ventilation and building-services equipment.
- Pumps and other motor-driven loads within the applicable ratings.
- Electrical distribution boards and control panels.
- Industrial and building automation systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Terminal Type | Screw | |
|---|---|---|
| Series | ESB20..N Installation Contactors | |
| ABB order code | 1SBE121111R0520 | |
| Product type | Installation contactor | |
| Number of poles | 2 | |
| Main contacts | 2NO | |
| Rated operational current (AC-1) | 20 A | |
| Rated control circuit voltage | 240 V AC/DC | |
| Rated operational voltage | 250 V AC / 220 V DC | |
| Rated insulation voltage | 400 V | |
| Rated impulse withstand voltage | 6 kV | |
| Rated operational current (AC-3, 230 V single-phase) | 9 A | |
| Rated operational power (AC-3, 230 V single-phase) | 1.3 kW | |
| Rated short-time withstand current | 72 A | |
| Electrical durability (AC-1) | 150,000 cycles | |
| Electrical durability (AC-3) | 150,000 cycles | |
| Mechanical durability | 1,000,000 cycles | |
| Protection rating | IP20 | |
| Pollution degree | 3 | |
| Terminal type | Screw terminals | |
| Mounting type | DIN rail | |
| Operating ambient temperature | -40 to +75 °C | |
| Dimensions (H × W × D) | 85 × 18 × 65 mm | |
| Weight | 0.14 kg | |
| EAN | 3471523007475 | |
| Standards | IEC/EN 60947-1, IEC/EN 60947-4-1, IEC/EN 61095, UL 60947-1, UL 60947-4-1, IEC 60335-2-40 A2L |
Frequently Asked Questions
What is the ABB ESB20-20N-05 used for?
The ESB20-20N-05 is an installation contactor designed for automatic or remote switching of compatible single-phase electrical loads such as lighting, electric heating, water heaters, ventilation systems and pumps.
What is the current rating of the ESB20-20N-05?
The contactor has an AC-1 rated operational current of 20 A. For AC-3 duty at 230 V single-phase, its rated operational current is 9 A.
What contact configuration does the ESB20-20N-05 have?
The ESB20-20N-05 has two normally open (2NO) main contacts, providing two normally open switching paths.
What control voltage does the ESB20-20N-05 require?
The contactor has a 240 V AC/DC control circuit, allowing operation from a compatible AC or DC control supply.
How is the ABB ESB20-20N-05 installed?
The ESB20-20N-05 is designed for DIN-rail mounting in distribution boards and control panels. Its compact 18 mm width helps minimise the required panel space.
Trusted ABB Switching Technology
ABB ESB installation contactors provide compact, efficient and dependable electrical load switching for residential, commercial and industrial systems, combining flexible AC/DC control with hum-free operation and space-saving DIN-rail installation.
