AUMA Riester GmbH & Co. KG

Explosion-proof versions SQEx and SQREx

Explosion-proof versions SQEx and SQREx

Explosion-proof devices must be used in plants where potentially explosive atmospheres are likely to occur. These devices are designed so that they will not act as ignition source. Their constructive measures prevent the occurrence of ignition sparks or hot surfaces.

Certification is performed in close collaboration with national and international certification bodies.

Details

Design features SQEx

• Torque rang from 50 Nm to 2,400 Nm
• Swing angles from 75° to 105°
• Operating time ranges for 90° from 4 s to 100 s
• Limit and torque seating
• 3-ph AC motors
• Handwheel for manual operation
• Mechanical Position indicator

Design features SQREx

• Torque rang from 50 Nm to 2,400 Nm
• Modulating torque from 75 Nm to 1,200 Nm
• Max. number of starts 1,500 c/h
• Swing angles from 75° to 105°
• Operating time ranges for 90° from 8 s to 100 s
• Limit and torque seating
• 3-ph AC motors
• Handwheel for manual operation
• Mechanical Position indicator

Ambient conditions

• High enclosure protection
• High quality corrosion protection
• Wide ambient temperature ranges

Options

• Intermediate position switches
• Switches in tandem version
• Remote position transmitter
• Magnetic limit and torque Transmitter
• Mechanical position indicator
• Functional safety: Up to SIL 2 in selected configurations

Interfaces

• Electrical connection via AUMA plug/socket connector (optionally terminals)
• Cable entries in different versions
• Output drive types according to ISO and DIN Standards