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2TAZ312000R2033 ABB E290-16-11/48 Latching Relay 1NO/1NC 16 A
ABB E290-16-11/48 electromechanical latching relay with one normally open and one normally closed contact, 16 A rated current, 250 V AC operating voltage and a 48 V AC / 24 V DC control coil for impulse-controlled switching.
£46.28
Why Choose the ABB E290-16-11/48 Latching Relay?
The ABB E290-16-11/48 is a compact and reliable electromechanical latching relay designed for impulse-controlled switching in lighting, building control and electrical distribution applications. As part of the ABB E290 latching relay series, it combines a 16 A rated switching current with one normally open and one normally closed contact and a 48 V AC / 24 V DC control coil.
Unlike a conventional monostable relay, the E290 changes its mechanically latched contact position when a control impulse is applied to the coil. The contacts remain in their selected state without continuous coil energisation until the next switching impulse is received, making the relay particularly suitable for efficient push-button control of electrical loads.
With a 16 A rated current, 250 V AC rated operating voltage and 48 V AC / 24 V DC control voltage, the E290-16-11/48 provides complementary 1NO/1NC switching in a compact DIN rail format. This configuration is useful where one circuit must close while another opens as the relay changes state.
Key Advantages
- Reliable electromechanical latching relay for impulse-controlled switching.
- 16 A rated switching current for electrical load control.
- 1NO + 1NC contact configuration for complementary switching functions.
- 48 V AC / 24 V DC control voltage for AC or DC control circuits.
- Mechanically retains its switching state without continuous coil energisation.
- DIN rail design for straightforward integration into distribution boards and control panels.
Key Features
- ABB E290 latching relay series.
- 16 A rated current.
- 250 V AC rated operating voltage.
- 1NO/1NC contact configuration.
- 48 V AC / 24 V DC control voltage.
- Impulse-operated electromechanical latching mechanism.
- Front manual operating facility and contact-position indication.
- DIN rail mounting with screw-terminal connections.
Efficient Impulse Switching for Electrical Installations
Latching relays such as the ABB E290 use short electrical control impulses to change their contact state. An internal mechanical latching mechanism retains the selected position after the control pulse ends, so continuous coil power is unnecessary and the relay remains in its switching state until another impulse is applied.
The 1NO/1NC configuration of the E290-16-11/48 provides complementary switching, with one contact normally open and the other normally closed. This makes the relay useful not only for lighting control but also for signalling, change-of-state control and other applications requiring opposing contact functions from the same impulse-operated device.
Typical Applications
- Lighting circuits controlled from multiple locations.
- Residential and commercial building installations.
- Electrical distribution boards.
- Impulse push-button control circuits.
- Complementary load and signalling circuits.
- DIN rail mounted automation and switching systems.
Technical Specifications
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| Device Type | Latching / Impulse Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Mounting Type | DIN rail | |
| Switching Current (A) | 16 A | |
| Series | E290 Latching Relays | |
| ABB order code | 2TAZ312000R2033 | |
| Product group | Protection & Control | |
| Product type | Electromechanical latching relay | |
| Function | Mechanical latching / impulse relay | |
| Contact configuration | 1NO + 1NC | |
| Rated current | 16 A | |
| Rated operating voltage | 250 V AC | |
| Control voltage | 48 V AC / 24 V DC | |
| AC control supply range | 43.2–52.8 V AC | |
| Rated impulse withstand voltage | 4 kV | |
| Mounting type | DIN rail | |
| Width | 18 mm (1 module) | |
| Dimensions (H × W × D) | 85 × 18 × 62 mm | |
| Operating temperature | -25 to +55 °C | |
| Terminal type | Screw terminals | |
| Tightening torque | 1.2–1.5 N·m | |
| Standards | IEC/EN 60669-1, IEC/EN 60669-2-2 |
Frequently Asked Questions
What is the ABB E290-16-11/48 used for?
The ABB E290-16-11/48 is an electromechanical latching relay used for impulse-controlled switching in lighting, building control, distribution and other electrical control applications.
What is the current rating of the E290-16-11/48?
The relay has a rated switching current of 16 A and a rated operating voltage of 250 V AC.
What control voltage does this latching relay require?
The E290-16-11/48 is designed for a 48 V AC / 24 V DC control voltage.
What contact configuration does the E290-16-11/48 have?
This model has one normally open and one normally closed contact (1NO + 1NC), providing complementary switching functions from the same latching relay.
How does the ABB E290 latching relay operate?
A control impulse energises the coil and changes the mechanically latched contact state. The relay retains that state without continuous coil power until another switching impulse is applied.
Trusted ABB Switching Technology
ABB E290 latching relays provide reliable and energy-efficient impulse switching for lighting, building control and electrical distribution applications, combining mechanically retained contact states with compact modular DIN rail installation.
