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Siemens 3RV2021-4FA10 Motor Protection Circuit Breaker, S0 Size, Class 10, 34–40 A
Siemens 3RV2021-4FA10 Motor Protection Circuit Breaker, S0 Size, Class 10, 34–40 A
Siemens 3RV2021-4FA10 Motor Protection Circuit Breaker, S0 Size, Class 10, 34–40 A
Siemens 3RV2021-4FA10 Motor Protection Circuit Breaker, S0 Size, Class 10, 34–40 A
Siemens 3RV2021-4FA10 Motor Protection Circuit Breaker, S0 Size, Class 10, 34–40 A
Siemens 3RV2021-4FA10 Motor Protection Circuit Breaker, S0 Size, Class 10, 34–40 A

SIEMENS

Siemens 3RV2021-4FA10 Motor Protection Circuit Breaker, S0 Size, Class 10, 34–40 A Original Brand New

Model / SKU3RV2021-4FA10

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

Original price was: $389.55.Current price is: $132.06.
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  • ConditionOriginal Brand New
  • Warranty12 months
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Description

Overview

The Siemens 3RV2021-4FA10 Motor Protection Circuit Breaker is engineered for precise and dependable motor safeguarding. Designed in a compact S0 frame size, this circuit breaker integrates overload and short-circuit protection in one streamlined unit. The Class 10 trip class, 34–40 A thermal release range, and 480 A magnetic release make it ideal for motors requiring fast and efficient shutdown during malfunction.

This model supports standard switching capacity, making it suitable for general industrial applications. Its screw terminal design ensures strong electrical connectivity and easy installation, enhancing reliability and minimizing downtime. Whether used for new installations or upgrades, the 3RV2021-4FA10 provides the safety and performance expected from Siemens industrial technologies.

Benefit

  • Reliable Motor Protection: Prevents overloads, short circuits, and phase failures.

  • Adjustable Thermal Release (34–40 A): Ensures flexible configuration based on motor load.

  • High Standard Switching Capacity: Suitable for demanding industrial settings.

  • Compact S0 Size: Saves panel space and simplifies installation.

  • Durable Construction: Ensures long lifespan in harsh environments.

  • Easy Wiring: Screw-terminal design allows secure and straightforward connection.

Function

  • Overload protection

  • Short-circuit protection

  • Manual motor switching (ON/OFF)

  • Trip protection with Class 10 characteristics

Application

  • Industrial motor control systems

  • Pump control panels

  • Conveyor systems

  • HVAC motors

  • Machine automation equipment

  • Manufacturing plants

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Specifications

SKU / Model3RV2021-4FA10
BrandSIEMENS
product brand nameSIRIUS
product designationCircuit breaker
design of the productFor motor protection
product type designation3RV2
size of the circuit-breakerS0
size of contactor can be combined company-specificS00, S0
product extension auxiliary switchYes
power loss [W] for rated value of the current-
● at AC in hot operating state16.25 W
● at AC in hot operating state per pole5.4 W
insulation voltage with degree of pollution 3 at AC rated value690 V
surge voltage resistance rated value6 kV
maximum permissible voltage for safe isolation in networks with grounded star point-
● between main and auxiliary circuit400 V
shock resistance acc. to IEC 60068-2-2725g / 11 ms
mechanical service life (switching cycles)-
● of the main contacts typical100 000
● of auxiliary contacts typical100 000
electrical endurance (switching cycles) typical100 000
type of protection according to ATEX directive 2014/34/EUEx II (2) GD
certificate of suitability according to ATEX directive 2014/34/EUDMT 02 ATEX F 001
reference code acc. to IEC 81346-2Q
installation altitude at height above sea level maximum2 000 m
ambient temperature-
● during operation-20 ... +40 °C
● during storage-50 ... +80 °C
● during transport-50 ... +80 °C
temperature compensation-20 ... +60 °C
relative humidity during operation10 ... 95 %
number of poles for main current circuit3
adjustable current response value current of the current-dependent overload release34 ... 40 A
operating voltage-
● rated value20 ... 690 V
● at AC-3 rated value maximum690 V
operating frequency rated value50 ... 60 Hz
operational current rated value40 A
operational current at AC-3 at 400 V rated value40 A
operating power at AC-3-
● at 230 V rated value11 kW
operating frequency at AC-3 maximum15 1/h
number of NC contacts for auxiliary contacts0
number of NO contacts for auxiliary contacts0
number of CO contacts for auxiliary contacts0
product function-
● ground fault detectionNo
● phase failure detectionYes
trip classCLASS 10
design of the overload releasethermal
breaking capacity operating short-circuit current (Ics) at AC-
● at 240 V rated value100 kA
● at 400 V rated value10 kA
● at 500 V rated value3 kA
● at 690 V rated value2 kA
breaking capacity maximum short-circuit current (Icu)-
● at AC at 240 V rated value100 kA
● at AC at 400 V rated value20 kA
● at AC at 500 V rated value6 kA
● at AC at 690 V rated value3 kA
response value current of instantaneous short-circuit trip unit480 A
full-load current (FLA) for 3-phase AC motor-
● at 480 V rated value40 A
● at 600 V rated value40 A
yielded mechanical performance [hp]-
● for single-phase AC motor-
— at 110/120 V rated value3 hp
— at 230 V rated value7.5 hp
● for 3-phase AC motor-
— at 200/208 V rated value10 hp
— at 220/230 V rated value10 hp
— at 460/480 V rated value30 hp
product function short circuit protectionYes
design of the short-circuit tripmagnetic
design of the fuse link for IT network for short-circuit protection of the main circuit-
● at 400 VgG 63 A
● at 500 VgG 63 A
● at 690 VgG 63 A
mounting positionany
fastening methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
required spacing-
● for grounded parts at 400 V-
● for live parts at 400 V-
● for grounded parts at 500 V-
● for live parts at 500 V-
● for grounded parts at 690 V-
● for live parts at 690 V-
— downwards70 mm
— upwards70 mm
— backwards0 mm
— at the side30 mm
— forwards0 mm
product component removable terminal for auxiliary and control circuitNo
type of electrical connection-
● for main current circuitscrew-type terminals
arrangement of electrical connectors for main current circuitTop and bottom
type of connectable conductor cross-sections-
— solid or stranded2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)
— finely stranded with core end processing2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²
● at AWG cables for main contacts2x (16 ... 12), 2x (14 ... 8)
tightening torque-
● for main contacts with screw-type terminals2 ... 2.5 N·m
design of screwdriver shaftDiameter 5 to 6 mm
size of the screwdriver tipPozidriv 2
design of the thread of the connection screw-
● for main contactsM4
B10 value-
proportion of dangerous failures-
● with high demand rate acc. to SN 3192050 %
failure rate [FIT]-
● with low demand rate acc. to SN 3192050 FIT
T1 value for proof test interval or service life acc. to IEC 6150810 y
protection class IP on the front acc. to IEC 60529IP20
touch protection on the front acc. to IEC 60529finger-safe, for vertical contact from the front
display version for switching statusHandle
For use in hazardous locationsTest Certificates Declaration of Conformity
last modified:11/30/2021
Weight0.404 kg
Dimensions49.00 × 102.00 × 102.00 mm

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