EWA 52.2505 Electric drive 250 Nm 4.4 rpm We66 400V 50Hz

• Type: EWA 52.2505 – Electric drive with worm gear
• Model number: 12528.2505.3205
• Torque: 250 Nm
• Speed: 4.4 rpm
• Voltage: 400 V, 3~ (three-phase AC), 50 Hz
• Power: 0.52 kW
• Current consumption: 1.20 A
• Weight: approx. 28.4 kg
• Duty cycle: S3–40%
• Protection rating: IP55
• Temperature range: –5 °C to +60 °C
• Gear system: Self-locking double worm gear
• Limit switch: END20.20 (integrated)
• Shaft: We66

The electric drive EWA 52.2505, model number 12528.2505.1232, is designed for intermittent operation according to duty cycle S3–40%. It delivers a constant torque of 250 Nm at a speed of 4.4 rpm and operates on 400 V three-phase AC.

The integrated double worm gear is self-locking, enabling secure positioning without backdriving.

The We66 shaft, with a length of 385 mm, is built into the drive and designed for applications requiring extended stroke or larger structural setups. It offers enhanced flexibility in positioning and power transmission.

The END20.20 limit switch is factory-integrated and matched to the motor. It ensures reliable shutoff at end positions and protects the system from overrun.

With a protection rating of IP55, the drive is safeguarded against dust and water jets. The permissible ambient temperature range is between –5 °C and +60 °C.

This drive is ideal for greenhouse applications, particularly for controlling ventilation and shading systems.

Note: The Lock EWA 52.2505 replaces the previous model Lock EWA 12.2505 (12212.2505.66).