The ABB E290-16-20/24 electromechanical step relay (order code M093969) is a device designed to control lighting circuits from multiple points using normally open buttons. With each pulse sent to the coil, the relay switches the state of the contacts, maintaining it until the next pulse.

? Main features

• Relay Type: Bistable electromechanical (latching)

• Control voltage: 24V AC / 12V DC

• Rated current: 16 A

• Number of contacts: 2 normally open (NO)

• Supply voltage: 250V AC

• Frequency: 50Hz

• Minimum pulse duration: ≥ 50 ms

• Response time: < 3 ms

• Power Loss: 0.64W

• Terminal tightening torque: 1.2 – 1.5 N·m

• Assembly: din rail (1 module, 18 mm wide)

• Manual control: Yes, via front lever with indication of the status of the contacts

• Noise level: 60 dB at 1 m

• Degree of protection: IP20

• Operating temperature: from -25°C to +55°C

⚙️ Switching ability

• Maximum load of incandescent lamps: 3000W

• Maximum load of fluorescent lamps: 3000VA

• Maximum load of fluorescent lamps (duo circuit): 2500 VA

• Maximum load of fluorescent lamps (parallel compensation): 2500 VA