Why Choose the ABB E2971620115 Installation Relay?
The ABB E2971620115, type designation E297-16-20/115, is a compact monostable installation relay designed for dependable switching of lighting, ventilation, air-conditioning and other electrical loads. Part of ABB's E297 installation relay range, it combines two normally open contacts with a 16 A rated current and a compact single-module DIN-rail format.
The E297-16-20/115 features two normally open (2NO) main contacts and a dual-rated control coil for 115 V AC or 110 V DC. As a monostable relay, its contacts remain operated while the appropriate control voltage is applied to the coil and automatically return to their normal position when that control voltage is removed.
With a rated operational voltage of 250 V AC, a 16 A rated current and an AC operating frequency of 50/60 Hz, the E2971620115 provides flexible two-pole 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 expansion modules make it suitable for commercial, public-building and industrial control systems.
Key Advantages
- Two normally open main contacts provide simultaneous two-pole switching.
- 16 A rated current supports lighting and other electrical loads.
- Dual-rated 115 V AC / 110 V DC control coil provides flexibility for AC and DC control circuits.
- Optimised coil design provides low power loss 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.
- Two normally open (2NO) main contacts.
- 115 V AC / 110 V DC rated control supply voltage.
- 250 V AC rated operational voltage.
- 50/60 Hz rated frequency for AC operation.
- Electromagnetically operated monostable switching.
- 1 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 and E299 auxiliary contact modules.
- Suitable for lighting, ventilation, air-conditioning and general load-control applications.
Reliable Two-Pole 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 the appropriate 115 V AC or 110 V DC control voltage is applied to the ABB E297-16-20/115, its two normally open contacts close; when the control voltage is interrupted, the relay automatically returns to its neutral off position.
ABB E297 installation relays are designed as compact 18 mm miniature contactors for dependable consumer control. The E297-16-20/115 provides two normally open contacts within a single module and can be combined with compatible E298 main contact modules for expanded power-contact configurations or E299 auxiliary contact modules for additional control and signalling functions.
Typical Applications
- Commercial and industrial lighting control.
- Multiple-lighting-system switching.
- Ventilation and fan control.
- Air-conditioning control circuits.
- Building automation and electrical distribution boards.
- Public-building switching systems.
- Industrial plants and machinery control applications.
