ABB ESB40-30N-06 40A Power Contactor 230V AC 3NO
The ABB ESB40-30N-06 is a 40A power installation contactor with three normally open contacts (3NO) and a 230V AC coil. Suitable for lighting, heating, and general power switching in commercial and industrial buildings, it is a compact DIN-rail contactor trusted across UAE distribution panels, BMS systems, and lighting control installations.
Key Features
- 40A rated with 3 NO main contacts for three-circuit or three-phase load switching
- 230V AC coil for standard UAE panel control supply
- AC-7a and AC-1 duty for resistive and building services loads
- DIN rail mounting for easy panel integration
- Genuine ABB ESB power contactor quality
Technical Specifications
| Specification |
Details |
| Brand |
ABB |
| Model |
ESB40-30N-06 |
| Rated Current |
40A |
| Main Contacts |
3 NO |
| Coil Voltage |
230V AC |
| Mounting |
DIN Rail |
Applications
- Commercial building lighting and HVAC switching
- Distribution panel load control circuits
- BMS and timer-controlled power switching
- Industrial lighting and general power circuits
FAQ
-
What does this contactor control?
It's an electrically-operated switch used to make/break a load circuit repeatedly under remote or automatic control — commonly lighting banks, motors, HVAC equipment, or heating loads switched via a timer, BMS, or control relay.
-
Does this need a separate overload relay for motor protection?
Yes, if it's controlling a motor — a contactor alone doesn't protect against sustained overload. Pair it with a compatible thermal overload relay (see ABB's matching TF/TA-series relays) to form a full motor starter.
-
Can I control this contactor with a timer or BMS?
Yes — the coil is designed for remote switching from a timer, PLC, BMS, or control relay rather than direct manual operation, making it suited to automated load switching.
-
Can I install this myself?
No. Contactors are wired into live control and power circuits and must be installed by a licensed electrician in accordance with UAE wiring regulations.
