Why Choose the ABB E290-16-20/230 Latching Relay?
The ABB E290-16-20/230 is a compact and reliable electromechanical latching relay designed for energy-efficient switching of lighting and other suitable electrical loads from multiple control points. As part of the ABB E290 latching relay series, it combines a 16 A switching rating with two normally open contacts and a 230 V AC control coil.
Unlike a conventional monostable relay, the E290 uses an impulse-operated mechanical latching mechanism. A brief control pulse changes the contact state, after which the contacts remain mechanically latched without requiring continuous coil energisation. A subsequent control pulse changes the switching state again, making the relay particularly useful for multi-point lighting control with push-buttons.
With a 16 A rated current, 250 V AC rated operational voltage, 230 V AC control voltage and 2NO contact configuration, the E290-16-20/230 provides two normally open switching paths for building and industrial control circuits. Its compact 18 mm DIN rail format enables straightforward installation in modular distribution boards and control panels.
Key Advantages
- Energy-efficient electromechanical latching relay operated by control impulses.
- 16 A rated current for switching compatible electrical loads.
- Two normally open (2NO) contacts provide two switching paths.
- 230 V AC control coil suitable for mains-voltage control circuits.
- Mechanical latching retains the switching state without continuous coil energisation.
- Ideal for lighting circuits controlled from multiple push-button locations.
- Compact 18 mm DIN rail format conserves distribution-board space.
Key Features
- ABB E290 electromechanical latching relay series.
- 16 A rated current.
- 2NO main contact configuration.
- 250 V AC rated operational voltage.
- 230 V AC control voltage.
- Impulse-operated mechanical latching mechanism.
- Contact state retained without continuous coil power.
- Front operating lever for manual switching and contact-position indication.
- DIN rail mounting with an 18 mm module width.
- Suitable for residential, commercial and industrial electrical installations.
Energy-Efficient Impulse Switching for Lighting Control
Latching relays such as the ABB E290-16-20/230 change their switching state when a short electrical impulse is applied to the control coil. The internal mechanical mechanism then retains the contact position without continuous coil energisation, reducing control-circuit power consumption compared with relays that require a permanently energised coil.
This switching principle is particularly useful where lighting or other suitable loads need to be controlled from several locations using push-buttons. The two normally open contacts of the E290-16-20/230 provide additional switching flexibility while its modular construction makes it easy to integrate into DIN rail distribution systems.
Typical Applications
- Multi-point lighting control systems.
- Staircase and corridor lighting.
- Residential electrical installations.
- Commercial and public building lighting.
- Factory and industrial lighting systems.
- DIN rail distribution boards and control panels.
