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Siemens 3RV2021-4DA10 Motor Protection Circuit Breaker S0, Class 10, 18–25A
Siemens 3RV2021-4DA10 Motor Protection Circuit Breaker S0, Class 10, 18–25A
Siemens 3RV2021-4DA10 Motor Protection Circuit Breaker S0, Class 10, 18–25A
Siemens 3RV2021-4DA10 Motor Protection Circuit Breaker S0, Class 10, 18–25A
Siemens 3RV2021-4DA10 Motor Protection Circuit Breaker S0, Class 10, 18–25A
Siemens 3RV2021-4DA10 Motor Protection Circuit Breaker S0, Class 10, 18–25A

SIEMENS

Siemens 3RV2021-4DA10 Motor Protection Circuit Breaker S0, Class 10, 18–25A Original Brand New

Model / SKU3RV2021-4DA10

High-performance circuit breaker designed for motor protection. Part of the SIRIUS 3RV2 range, this Size S0 protector features a thermal-magnetic release of 18–25 A and a Class 10 trip rating, ensuring reliable operation and safety for industrial motor systems.

Original price was: $237.85.Current price is: $88.70.
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  • ConditionOriginal Brand New
  • Warranty12 months
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Description

Overview

The Siemens 3RV2021-4DA10 is a high-performance motor protection circuit breaker designed for reliable protection of motors against overload and short circuits. Built in size S0, this breaker features CLASS 10 tripping, an A-release current range of 18–25 A, and an N-release of 325 A, ensuring precise and dependable operation. Its screw terminal design allows for secure and easy installation, while the standard switching capacity makes it ideal for industrial motor control applications.

Benefit

  • Space-Saving Design: The compact Size S0 frame allows for high-density installation in control cabinets.

  • Enhanced Safety: Equipped with a Class 10 tripping characteristic to prevent motor burnout during overload conditions.

  • Easy Integration: Seamlessly compatible with other Siemens SIRIUS modular system components like contactors and overload relays.

  • High Reliability: Built to international standards, ensuring a long mechanical and electrical service life.

Function

  • Protects motors from thermal overloads

  • Provides short-circuit protection with N-release of 325 A

  • Enables safe manual switching and isolation

  • Supports stable motor operation in industrial environments

Technical Highlight

  • Product Number: 3RV2021-4DA10

  • Frame Size: S0

  • Motor Protection Class: CLASS 10

  • A-Release Range: 18…25 A

  • N-Release: 325 A

  • Terminal Type: Screw terminal

  • Switching Capacity: Standard

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Specifications

SKU / Model3RV2021-4DA10
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 state10.5 W
● at AC in hot operating state per pole3.5 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 ... +60 °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 release18 ... 25 A
operating voltage-
● rated value20 ... 690 V
● at AC-3 rated value maximum690 V
operating frequency rated value50 ... 60 Hz
operational current rated value25 A
operational current at AC-3 at 400 V rated value25 A
operating power at AC-3-
● at 230 V rated value5.5 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 value25 kA
● at 500 V rated value5 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 value55 kA
● at AC at 500 V rated value10 kA
● at AC at 690 V rated value4 kA
response value current of instantaneous short-circuit trip unit325 A
full-load current (FLA) for 3-phase AC motor-
● at 480 V rated value25 A
● at 600 V rated value25 A
yielded mechanical performance [hp]-
● for single-phase AC motor-
— at 110/120 V rated value2 hp
— at 230 V rated value3 hp
● for 3-phase AC motor-
— at 200/208 V rated value5 hp
— at 220/230 V rated value7.5 hp
— at 460/480 V rated value15 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 VgL/gG 63 A
● at 500 VgL/gG 50 A
● at 690 VgL/gG 50 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-
— downwards50 mm
— upwards50 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
Weight0.370 kg
Dimensions49.00 × 102.00 × 102.00 mm

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