Overview

The following illustration shows our 3RV1 motor starter protector/circuit breaker with the accessories which can be mounted for the various sizes.

For an overview of the 3RV1 motor starter protector, see the following PDF at the end of the topic.

For 3RV motor starter protectors up to 100 A, 3RV19 mountable accessories

SIRIUS motor starter protectors size S0

3RV1 motor starter protectors/circuit breakers are compact, current limiting motor starter protectors/circuit breakers which are optimized for load feeders. The motor starter protectors/circuit breakers are used according to IEC 60947-2 for switching and protecting three-phase motors of up to 45 kW at 400 V AC and for other loads with rated currents of up to 100 A.

3RV1 motor starter protectors are usually approved compliant with IEC and UL/CSA.

According to UL 508/UL 60947‑4‑1, the 3RV1 motor starter protectors in sizes S00 to S3 are approved as

• "Manual motor controllers"
• "Manual Motor Controllers" for "Group Installations"
• "Manual Motor Controllers Suitable for Tab Conductor Protection in Group Installations"
• "Self-Protected Combination Motor Controller (Type E)"
  This approval is not valid for size S00, and 3RV10 motor starter protectors in size S0 and S3 have to be equipped with additional feeder terminals.

3RV2 motor starter protectors/circuit breakers in sizes S00 and S2 to 80 A, see "SIRIUS 3RV2 motor starter protectors to 80 A".

The 3RV1742 are approved as circuit breakers according to UL 489; they are a special variant of the 3RV1 motor starter protectors.

Type of construction

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

For 3RV2 motor starter protectors/circuit breakers up to 80 A in sizes S00 to S2, see "SIRIUS 3RV2 motor starter protectors/circuit breakers up to 80 A".

Circuit breakers acc. to UL 489

The 3RV1742 circuit breakers are available in size S3 (width 70 mm):

• Maximum rated current 70 A at 480 Y/277 V AC
• Maximum rated current 10 A to 30 A at 480 V AC

For 3RV27 and 3RV28 circuit breakers up to 22 A in sizes S00 and S0, see "SIRIUS 3RV2 motor starter protectors/circuit breakers up to 80 A".

Connection methods

The SIRIUS 3RV1 motor starter protectors/circuit breakers can be supplied with screw terminals and spring-type terminals.

"Increased safety" type of protection EEx e according to ATEX Directive 94/9/EC

The 3RV10 motor starter protectors for motor protection are suitable for the overload protection of explosion-proof motors with "increased safety" type of protection EEx e.

For comprehensive technical information, see the manuals/operating instructions, http://support.automation.siemens.com/WW/view/en/20357458/133300

Article No. scheme

Note:

The Article No. scheme shows an overview of product versions for better understanding of the logic behind the article numbers. For your orders please use the article numbers quoted in the selection and ordering data.