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The ABB E290-16-20/24 electromechanical step relay (order code M093969 ) is a device designed to control lighting circuits from multiple points via normally open pushbuttons. 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: Electromechanical bistable (latching)

• Control voltage: 24V AC / 12V DC

• Rated current: 16A

• Number of contacts: 2 normally open (NO)

• Supply voltage: 250 V AC

• Frequency: 50 Hz

• Minimum pulse duration: ≥ 50 ms

• Response time:

• Power loss: 0.64W

• Terminal tightening torque: 1.2 – 1.5 N·m

• Mounting: DIN rail (1 module, 18 mm wide)

• Manual control: Yes, via front lever with contact status indication

• Noise level: 60 dB at 1 m

• Degree of protection: IP20

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

⚙️ Switching capacity

• Maximum load of incandescent lamps: 3000 W

• Maximum load fluorescent lamps: 3000 VA

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

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