Sirius Series 3RV

Sirius Series 3RV

Order No: 3RV1…-…..

3RV1 motor starter protectors are compact, current limiting motor starter protectors which are optimized for load feeders. The motor starter protectors are used for switching and protecting three-phase induction motors of up to 45 kW at 400 V AC and for other loads with rated currents of up to 100 A.

The 3RV1 motor starter protectors/circut breakers are available in four sizes:

• Size S00 – width 45 mm,
  max. rated current 12 A,
  at 400 V AC suitable for three-phase motors up to 5.5 kW
• Size S0 – width 45 mm,
  max. rated current 25 A,
  at 400 V AC suitable for three-phase motors up to 11 kW
• Size S2 – width 55 mm,
  max. rated current 50 A,
  at 400 V AC suitable for three-phase motors up to 22 kW
• Size S3 – width 70 mm,
  max. rated current 100 A,
  at 400 V AC suitable for three-phase motors up to 45 kW

Application

3RV1 motor starter protectors are suitable for use in any climate. They are intended for use in enclosed rooms in which no severe operating conditions (such as dust, caustic vapors, hazarodous gases) prevail. When installed in dusty and damp areas, suitable enclosures must be provided.

3RV1 motor starter protectors can optionally be fed from the top or from below. The permissible ambient temperatures, the maximum switching capacities, the tripping currents and other boundary conditions can be found in the technical specifications and tripping characteristics. 3RV1 motor starter protectors/circuit breakers are suitable for operation in IT systems (IT networks). In this case, the different short-circuit breaking capacity in the IT system must be taken into account. Since operational currents, starting currents and current peaks are different even for motors with identical power ratings due to the inrush current, the motor ratings in the selection tables are only guide values. The specific rated and start-up data of the motor to be protected is always paramount to the choice of the most suitable motor starter protector. This also applies to motor starter protectors for transformer protection.

The 3RV1 motor starter protectors can be used:

• For short-circuit protection
• For motor protection (also with overload relay function)
• For system protection
• For short-circuit protection for starter combinations
• For transformer protection
• As main and EMERGENCY-STOP switches
• For fuse monitoring
• For operation in IT systems (IT networks)
• For switching of DC currents
• As voltage transformer circuit breakers
• In areas subject to explosion hazard (ATEX)
• Approved as circuit breakers according to UL 489 (3RV1742)