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2TAZ312000R2042 ABB E290-16-20/24 Latching Relay 2NO 16 A 24 V AC / 12 V DC
ABB E290-16-20/24 electromechanical latching relay with two normally open contacts, a 16 A rated current and a 24 V AC / 12 V DC control coil for energy-efficient impulse-controlled electrical switching.
£45.58
Why Choose the ABB E290-16-20/24 Latching Relay?
The ABB E290-16-20/24 is a compact and reliable electromechanical latching relay designed for energy-efficient switching of lighting and other compatible 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 24 V AC / 12 V DC control coil.
Unlike a conventional monostable relay, the E290 uses an impulse-operated mechanical latching mechanism. Each brief control pulse changes the contact state, after which the contacts remain mechanically latched without continuous coil energisation until the next impulse is received. This operating principle provides efficient switching and makes the relay particularly suitable for lighting circuits controlled by normally open push-buttons.
With a 16 A rated current, 250 V AC rated operational voltage, 24 V AC / 12 V DC control voltage and 2NO contact configuration, the E290-16-20/24 provides two normally open switching paths for residential, commercial, public-building and industrial installations. Its compact 18 mm DIN rail format enables straightforward integration into modular distribution boards and control panels.
Key Advantages
- Energy-efficient electromechanical latching relay operated by brief control impulses.
- 16 A rated current for switching compatible electrical loads.
- Two normally open (2NO) contacts provide two switching paths.
- 24 V AC / 12 V DC control coil supports compatible AC and DC control circuits.
- Mechanical latching retains the contact state without continuous coil energisation.
- Front operating lever enables manual operation and indicates the contact state.
- 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.
- 24 V AC / 12 V DC control voltage.
- 50 Hz rated frequency.
- 0.64 W power loss.
- 4 kV rated impulse withstand voltage.
- Minimum control impulse duration of 50 ms.
- Response time of less than 3 ms.
- DIN rail mounting with an 18 mm module width.
Energy-Efficient Impulse Switching for Lighting Control
Latching relays such as the ABB E290-16-20/24 change their contact state each time a short electrical impulse is applied to the control coil. The internal mechanical mechanism then holds the contacts securely in their new position without continuous coil energisation until the next control impulse is received.
This switching principle is particularly useful where lighting needs to be controlled from multiple locations using normally open push-buttons. The E290-16-20/24 combines two normally open contacts, a 16 A rating and 24 V AC / 12 V DC control compatibility, making it a practical solution for residential, commercial, public-building and industrial electrical installations.
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.
Technical Specifications
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| Device Type | Latching / Impulse Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Load Voltage | 250 V AC | |
| Mounting Type | DIN rail | |
| Switching Current (A) | 16 A | |
| Series | E290 | |
| ABB order code | 2TAZ312000R2042 | |
| Product type | Electromechanical latching relay | |
| Function | Mechanical latching / impulse relay | |
| Rated current | 16 A | |
| Contact configuration | 2NO | |
| Rated operational voltage | 250 V AC | |
| Control voltage | 24 V AC / 12 V DC | |
| Rated frequency | 50 Hz | |
| Rated insulation voltage | 24 V AC / 12 V DC | |
| Rated impulse withstand voltage | 4 kV | |
| Minimum impulse duration | 50 ms | |
| Response time | <3 ms | |
| Power loss | 0.64 W | |
| Mounting type | DIN rail | |
| Connection type | Screw terminals | |
| Module width | 18 mm | |
| Dimensions (H × W × D) | 85 × 18 × 62 mm | |
| Operating temperature | -25 to +55 °C | |
| Tightening torque | 1.2–1.5 N·m | |
| Colour | Grey | |
| Weight | 0.122 kg | |
| Standards | IEC/EN 60669-1, IEC/EN 60669-2-2 | |
| EAN | 7612270939695 |
Frequently Asked Questions
What is the ABB E290-16-20/24 used for?
The ABB E290-16-20/24 is an electromechanical latching relay used for energy-efficient impulse-controlled switching of lighting and other compatible electrical loads, particularly where control is required from multiple push-button locations.
What contact configuration does the E290-16-20/24 have?
The relay has two normally open (2NO) contacts with a rated current of 16 A.
What control voltage does the E290-16-20/24 use?
The E290-16-20/24 supports a control voltage of 24 V AC or 12 V DC.
How does the ABB E290-16-20/24 operate?
Each control impulse briefly energises the coil and changes the contact state. The internal mechanical latch then retains that state without continuous coil power until the next control impulse is applied.
How is the ABB E290-16-20/24 installed?
The relay is designed for DIN rail mounting and occupies a compact 18 mm module width in an electrical distribution board or control panel.
Trusted ABB Modular Control Technology
ABB E290 latching relays provide energy-efficient impulse switching for residential, commercial and industrial installations, combining mechanical contact retention, modular DIN rail mounting and convenient multi-point electrical control.
