Why Choose the ABB E297161148 Installation Relay?
The ABB E297161148, type designation E297-16-11/48, is a compact monostable installation relay designed for dependable switching and control of lighting, ventilation, air-conditioning and other electrical loads. Part of ABB's E297 installation relay range, it combines a 16 A contact rating with one normally open and one normally closed contact in a compact single-module DIN-rail format.
The E297-16-11/48 features a 1NO + 1NC contact configuration and a dual-rated 48 V AC/DC control coil. As a monostable relay, energising the coil changes the state of both contacts, while removal of the control voltage automatically returns them to their normal positions, providing complementary switching from a single control signal.
With a rated operational voltage of 250 V AC, rated current of 16 A and AC operating frequency of 50/60 Hz, the E297161148 provides flexible load control in an 18 mm-wide DIN-rail module. Its low-loss coil, temporary manual operating lever and compatibility with ABB E298 and E299 contact modules make it suitable for commercial, public-building and industrial control systems.
Key Advantages
- 1NO + 1NC contact configuration provides complementary switching from one relay.
- 16 A rated current supports lighting and other electrical loads.
- Dual-rated 48 V AC/DC control coil provides flexibility for AC and DC control circuits.
- Low 0.5 W power loss supports efficient operation and reduced heat generation.
- Compact 18 mm single-module width saves valuable distribution-board space.
- Front operating lever provides temporary manual operation and contact-position indication.
Key Features
- ABB E297 monostable installation relay series.
- 16 A rated current.
- One normally open (1NO) main contact.
- One normally closed (1NC) main contact.
- 48 V AC/DC rated control supply voltage.
- 250 V AC rated operational voltage.
- 50/60 Hz rated frequency.
- 4 kV rated impulse withstand voltage.
- Electromagnetically operated monostable switching.
- 0.5 W power loss.
- Front lever for temporary manual operation and contact-position indication.
- DIN-rail mounting with an 18 mm module width.
- Compatible with ABB E298 main contact modules and E299 auxiliary contact modules.
Reliable Changeover-Style Monostable Load Control
A monostable installation relay is an electromagnetically operated switching device that remains in its operated state only while control voltage is applied to its coil. When 48 V AC/DC is applied to the ABB E297-16-11/48, the normally open contact closes while the normally closed contact opens; when the coil is de-energised, both contacts automatically return to their normal states.
The complementary 1NO + 1NC configuration makes the E297-16-11/48 useful where a single control signal must simultaneously make one circuit and break another. ABB E297 installation relays can also be combined with compatible E298 main contact modules to extend power switching arrangements and E299 auxiliary contact modules for additional control or signalling functions.
Typical Applications
- Commercial and industrial lighting control.
- Building automation systems using 48 V AC/DC control circuits.
- Ventilation and fan control.
- Air-conditioning control circuits.
- Complementary make/break control functions.
- Electrical distribution and modular control panels.
- Industrial machinery and general load-control applications.
