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Siemens products / SIRIUS 3RV2 motor starter protectors / 3RV2021-4FA10
SIRIUS 3RV2 motor starter protectorsSiemens 3RV2021-4FA10 — Motor protection circuit breaker, manufacturer catalog image

Siemens catalog image for this reference; may represent the product family.

MOTOR PROTECTION CIRCUIT BREAKER

3RV2021-4FA10 — Motor protection circuit breaker

SKU 3RV2021-4FA10

Circuit breaker size S0 for motor protection, CLASS 10 A-release 34...40 A N-release 480 A screw terminal Standard switching capacity

Active Product

34...40 AThermal release setting range
480 AMagnetic release
10Trip class
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PRODUCT DATA

Technical specifications

Source: Siemens product catalog.
Verified September 21, 2026.

3RV2021-4FA10 — selected manufacturer specifications
Product reference3RV2021-4FA10
Manufacturer descriptionCircuit breaker size S0 for motor protection, CLASS 10 A-release 34...40 A N-release 480 A screw terminal Standard switching capacity
Product FamilySIRIUS 3RV2 motor starter protectors
Net weight0,3606 Kg
Packaging dimensions (L x W x H)104,00 x 103,00 x 53,00 mm
Country of originGermany
EAN4011209716278
UPC662643924534
Thermal release setting range34...40 A
Magnetic release480 A
Trip class10
SizeS0

For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official Siemens reference ↗.

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