Why Choose the ABB E290-32-11/8 Latching Relay?
The ABB E290-32-11/8 is a high-current electromechanical latching relay designed for impulse-controlled switching in lighting, building control and electrical distribution applications. Part of the ABB E290 range, it combines a 32 A rated current with one normally open and one normally closed contact, providing complementary switching from a compact DIN rail device.
The E290-32-11/8 changes its contact state each time an electrical impulse is applied to the coil. Its mechanical latching mechanism then retains the selected state without continuous coil energisation, helping create simple and energy-efficient control systems operated from one or multiple push-button locations.
With a 250 V AC rated operating voltage and an 8 V AC control voltage, this model combines high-current load switching with extra-low-voltage impulse control. Its 1NO + 1NC configuration is particularly useful where one circuit needs to close as another opens when the relay changes state.
Key Advantages
- High 32 A rated current for demanding electrical switching applications.
- 1NO + 1NC contact configuration for complementary switching functions.
- 8 V AC control voltage for compatible low-voltage impulse-control circuits.
- Mechanical latching retains the switching state without continuous coil energisation.
- Front operating lever enables manual operation and provides contact-state indication.
- Compact 18 mm DIN rail format for space-efficient panel installation.
Key Features
- ABB E290 electromechanical latching relay.
- 32 A rated current.
- 250 V AC rated operating voltage.
- 1NO + 1NC main contact configuration.
- 8 V AC rated control voltage.
- 1.2 W power loss.
- Impulse-operated mechanical latching mechanism.
- Front manual operating lever with contact-state indication.
- DIN rail mounting with screw-terminal connections.
High-Current Complementary Switching with 8 V AC Control
ABB E290 latching relays switch their contacts each time an impulse is sent to the coil, typically from normally open push-buttons. Once switched, the mechanical latching mechanism maintains the contact state without requiring continuous coil power. This operating principle is particularly useful for lighting and other loads that need to be controlled from several locations.
The E290-32-11/8 combines this energy-efficient operating principle with a 32 A switching rating, 1NO + 1NC contacts and an 8 V AC control coil. The complementary contacts allow the normally open path to close as the normally closed path opens, enabling coordinated load, control and signalling functions from a single modular relay.
Typical Applications
- High-current lighting control circuits.
- Lighting controlled from multiple push-button locations.
- Residential and commercial building installations.
- Factories, public buildings and communal electrical systems.
- Low-voltage impulse-control circuits.
- Complementary load and signalling functions.
- Industrial electrical installations.
- Electrical distribution boards and DIN rail control panels.
