3RV2021-4BA10

Siemens Motor protection circuit breaker S0, 13 ... 20 A, CLASS 10

Generic illustration of a Siemens SIRIUS 3RV2 motor protection circuit breaker, not a photograph of 3RV2021-4BA10; the exact product may look different.

Image is for illustrative purposes only. Please refer to product description.

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Siemens SIRIUS 3RV2021-4BA10 circuit breaker for motor protection, size S0: overload release 13 ... 20 A, instantaneous short-circuit release 260 A, CLASS 10, screw terminals.

Manufacturer: Siemens
Manufacturer part no.: 3RV2021-4BA10
Product family: SIRIUS 3RV2 Motor Protection Circuit Breakers
Type: Motor protection circuit breaker
Lifecycle: Active product (Siemens SiePortal)
OEM successor: Not stated
Technical datasheet: Data sheet

Technical specifications

Manufacturer: Siemens
Manufacturer part no.: 3RV2021-4BA10
Type: Motor protection circuit breaker
Application: Motor protection
Used with: SIRIUS 3RT2 contactors, size S0
General technical data / Product equipment of circuit breaker for motor protection complete unit with protection device: Yes
General technical data / size of the circuit-breaker: S0
General technical data / size of contactor can be combined company-specific: S00, S0
General technical data / product function disconnector functionality: Yes
General technical data / product extension auxiliary switch: Yes
power loss [W] for rated value of the current / at AC in hot operating state: 10.5 W
power loss [W] for rated value of the current / at AC in hot operating state per pole: 3.5 W
General technical data / type of calculation of power loss current-dependent: quadratic
General technical data / insulation voltage with degree of pollution 3 at AC rated value: 690 V
General technical data / surge voltage resistance rated value: 6 kV
maximum permissible voltage for protective separation / in networks with ungrounded star point between main and auxiliary circuit: 400 V
maximum permissible voltage for protective separation / in networks with grounded star point between main and auxiliary circuit: 400 V
protection class IP / on the front according to IEC 60529: IP20
protection class IP / on the front: IP20
protection class IP / of the terminal: IP20
General technical data / shock resistance according to IEC 60068-2-27: 25g / 11 ms
mechanical service life (operating cycles) / of the main contacts typical: 100 000
mechanical service life (operating cycles) / of auxiliary contacts typical: 100 000
General technical data / electrical endurance (operating cycles) typical: 100 000
General technical data / reference code according to IEC 81346-2: Q
General technical data / continuous current rated value: 20 A
General technical data / Substance Prohibitance (day/month/year): 10/01/2009
General technical data / Net Weight: 337.6 g
Ambient conditions / installation altitude at height above sea level maximum: 2 000 m
ambient temperature / during operation: -20 ... +60 °C

Show all 170 specifications

ambient temperature / during storage: -50 ... +80 °C
ambient temperature / during transport: -50 ... +80 °C
Ambient conditions / temperature compensation: -20 ... +60 °C
Ambient conditions / relative humidity during operation: 10 ... 95 %
number of poles for main current circuit: 3
Main circuit / adjustable current response value current of the current- dependent overload release: 13 ... 20 A
type of voltage for main current circuit: AC
operating voltage / rated value: 690 V
operating voltage / rated value: 20 ... 690 V
operating voltage / at AC-3 rated value maximum: 690 V
operating voltage / at AC-3e rated value maximum: 690 V
Main circuit / operating frequency rated value: 50 ... 60 Hz
Main circuit / operational current rated value: 20 A
operational current / at AC-3 at 400 V rated value: 20 A
operational current / at AC-3e at 400 V rated value: 20 A
operating power / at AC-3 / at 230 V rated value: 5.5 kW
operating power / at AC-3 / at 400 V rated value: 7.5 kW
operating power / at AC-3 / at 500 V rated value: 11 kW
operating power / at AC-3 / at 690 V rated value: 15 kW
operating power / at AC-3e / at 230 V rated value: 5.5 kW
operating power / at AC-3e / at 400 V rated value: 7.5 kW
operating power / at AC-3e / at 500 V rated value: 11 kW
operating power / at AC-3e / at 690 V rated value: 15 kW
operating frequency / at AC-3 maximum: 15 1/h
operating frequency / at AC-3e maximum: 15 1/h
type of voltage for auxiliary and control circuit: AC/DC
number of NC contacts for auxiliary contacts: 0
number of NO contacts for auxiliary contacts: 0
number of CO contacts for auxiliary contacts: 0
product function / ground fault detection: No
product function / phase failure detection: Yes
Protective and monitoring functions / trip class: CLASS 10
Protective and monitoring functions / design of the overload release: thermal
Protective and monitoring functions / protection function thermal overload protection (ANSI 49): Yes
maximum short-circuit current breaking capacity (Icu) / at AC at 240 V rated value: 100 kA
maximum short-circuit current breaking capacity (Icu) / at AC at 400 V rated value: 55 kA
maximum short-circuit current breaking capacity (Icu) / at AC at 500 V rated value: 10 kA
maximum short-circuit current breaking capacity (Icu) / at AC at 690 V rated value: 4 kA
operating short-circuit current breaking capacity (Ics) at AC / at 240 V rated value: 100 kA
operating short-circuit current breaking capacity (Ics) at AC / at 400 V rated value: 25 kA
operating short-circuit current breaking capacity (Ics) at AC / at 500 V rated value: 5 kA
operating short-circuit current breaking capacity (Ics) at AC / at 690 V rated value: 2 kA
Protective and monitoring functions / response value current of instantaneous short-circuit trip unit: 260 A
full-load current (FLA) for 3-phase AC motor / at 480 V rated value: 20 A
full-load current (FLA) for 3-phase AC motor / at 600 V rated value: 20 A
yielded mechanical performance [hp] / for single-phase AC motor / at 110/120 V rated value: 1.5 hp
yielded mechanical performance [hp] / for single-phase AC motor / at 230 V rated value: 3 hp
yielded mechanical performance [hp] / for 3-phase AC motor / at 200/208 V rated value: 7.5 hp
yielded mechanical performance [hp] / for 3-phase AC motor / at 220/230 V rated value: 5 hp
yielded mechanical performance [hp] / for 3-phase AC motor / at 460/480 V rated value: 10 hp
UL/CSA ratings / UL File Number (CCN): E47705 (NLRV, NLRV7), E156943 (NKJH, NKJH7)
Short-circuit protection / product function short circuit protection: Yes
design of the short-circuit trip design of the fuse link for IT network for short-circuit: magnetic
protection of the main circuit / at 400 V: gL/gG 63 A
protection of the main circuit / at 500 V: gL/gG 50 A
protection of the main circuit / at 690 V: gL/gG 50 A
Short-circuit protection / certificate of suitability according to ATEX directive 2014/34/EU: DMT 02 ATEX F 001
Short-circuit protection / type of protection according to ATEX directive 2014/34/EU: Ex II (2) GD
Installation/ mounting/ dimensions / mounting position: any
Installation/ mounting/ dimensions / fastening method: screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Installation/ mounting/ dimensions / Mounting method of circuit breaker for Transformer protection, Generator protection and system protection optional standard bar mounting: Yes
Installation/ mounting/ dimensions / height: 97 mm
Installation/ mounting/ dimensions / width: 45 mm
Installation/ mounting/ dimensions / depth: 97 mm
required spacing / with side-by-side mounting / forwards: 0 mm
required spacing / with side-by-side mounting / backwards: 0 mm
required spacing / with side-by-side mounting / upwards: 50 mm
required spacing / with side-by-side mounting / downwards: 50 mm
required spacing / with side-by-side mounting / at the side: 0 mm
required spacing / for grounded parts / forwards: 0 mm
required spacing / for grounded parts / backwards: 0 mm
required spacing / for grounded parts / upwards: 50 mm
required spacing / for grounded parts / at the side: 30 mm
required spacing / for grounded parts / downwards: 50 mm
required spacing / for live parts / forwards: 0 mm
required spacing / for live parts / backwards: 0 mm
required spacing / for live parts / upwards: 50 mm
required spacing / for live parts / downwards: 50 mm
required spacing / for live parts / at the side: 30 mm
required spacing / for grounded parts at 400 V / downwards: 30 mm
required spacing / for grounded parts at 400 V / upwards: 30 mm
required spacing / for grounded parts at 400 V / at the side: 9 mm
required spacing / for live parts at 400 V / downwards: 30 mm
required spacing / for live parts at 400 V / upwards: 30 mm
required spacing / for live parts at 400 V / at the side: 9 mm
required spacing / for grounded parts at 500 V / downwards: 30 mm
required spacing / for grounded parts at 500 V / upwards: 30 mm
required spacing / for grounded parts at 500 V / at the side: 9 mm
required spacing / for live parts at 500 V / downwards: 30 mm
required spacing / for live parts at 500 V / upwards: 30 mm
required spacing / for live parts at 500 V / at the side: 9 mm
required spacing / for grounded parts at 690 V / downwards: 50 mm
required spacing / for grounded parts at 690 V / upwards: 50 mm
required spacing / for grounded parts at 690 V / backwards: 0 mm
required spacing / for grounded parts at 690 V / at the side: 30 mm
required spacing / for grounded parts at 690 V / forwards: 0 mm
required spacing / for live parts at 690 V / downwards: 50 mm
required spacing / for live parts at 690 V / upwards: 50 mm
required spacing / for live parts at 690 V / backwards: 0 mm
required spacing / for live parts at 690 V / at the side: 30 mm
required spacing / for live parts at 690 V / forwards: 0 mm
Connections/ Terminals / product component removable terminal for auxiliary and control circuit: No
type of electrical connection / for main current circuit: screw-type terminals
Connections/ Terminals / arrangement of electrical connectors for main current circuit: Top and bottom
type of connectable conductor cross-sections / for main contacts / solid or stranded: 2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)
type of connectable conductor cross-sections / for main contacts / finely stranded with core end processing: 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²
type of connectable conductor cross-sections / for AWG cables for main contacts: 2x (16 ... 12), 2x (14 ... 8)
connectable conductor cross-section for main contacts / solid or stranded: 1 ... 10 mm²
connectable conductor cross-section for main contacts / finely stranded with core end processing: 1 ... 10 mm²
Connections/ Terminals / AWG number as coded connectable conductor cross section for main contacts: 16 ... 8
tightening torque / for main contacts with screw-type terminals: 2 ... 2.5 N·m
Connections/ Terminals / design of screwdriver shaft: Diameter 5 to 6 mm
Connections/ Terminals / size of the screwdriver tip: Pozidriv size 2
design of the thread of the connection screw / for main contacts: M4
product function suitable for safety function: Yes
suitability for use / safety-related switching on: No
suitability for use / safety-related switching OFF: Yes
Safety related data / service life maximum: 10 a
Safety related data / test wear-related service life necessary: Yes
proportion of dangerous failures / with low demand rate according to SN 31920: 40 %
proportion of dangerous failures / with high demand rate according to SN 31920: 50 %
Safety related data / B10 value with high demand rate according to SN 31920: 5 000
Safety related data / failure rate [FIT] with low demand rate according to SN 31920 ISO 13849: 50 FIT
Safety related data / device type according to ISO 13849-1: 3
Safety related data / overdimensioning according to ISO 13849-2 necessary IEC 61508: Yes
safety device type according to IEC 61508-2: Type A
T1 value / for proof test interval or service life according to IEC 61508: 10 a
Safety related data / protection class IP on the front according to IEC 60529: IP20
Safety related data / touch protection on the front according to IEC 60529: finger-safe, for vertical contact from the front
display version for switching status: Handle
Environmental Product Declaration / global warming potential [CO2 eq] / during manufacturing: 2.68 kg
Environmental Product Declaration / global warming potential [CO2 eq] / during sales: 0.143 kg
Environmental Product Declaration / global warming potential [CO2 eq] / during operation: 72.7 kg
Environmental Product Declaration / global warming potential [CO2 eq] / after end of life: -0.445 kg
Environmental Product Declaration / global warming potential [CO2 eq] / total: 75.078 kg
Approvals Certificates / Environment: General Product Approval
Approvals Certificates / General Product Approval: For use in hazard- ous locations
For use in hazardous locations / Special Test Certific-: Type Test Certific-
For use in hazardous locations / ate: ates/Test Report
Approvals Certificates / Maritime application: other Miscellaneous Confirmation ate

Technical documents (1)

Siemens data sheet 3RV2021-4BA10

Key features

Size S0, 3-pole
Adjustable overload release 13 ... 20 A
Instantaneous short-circuit release 260 A
Breaking capacity 55 kA at 400 V AC
Trip class CLASS 10
Screw terminals

About the Siemens 3RV2021-4BA10

The Siemens 3RV2021-4BA10 is a size S0 SIRIUS 3RV2 circuit breaker for motor protection. Siemens's data sheet gives an adjustable overload release of 13 ... 20 A, an instantaneous short-circuit release at 260 A, trip class CLASS 10, a short-circuit breaking capacity (Icu) of 55 kA at 400 V AC and screw terminals. SiePortal lists it as an active product.

What is the 3RV2021-4BA10 used for?

It protects and isolates a three-phase motor whose rated current falls in the 13 ... 20 A range, usually combined with a 3RT2 contactor of the same size in a motor starter.

Lifecycle and successor

Active product (Siemens SiePortal).

Before you order

What to photograph or confirm so the right unit is quoted.

Check the full order number and the setting on the dial: the replacement's overload setting range must include the motor's rated current.

Alternatives for 3RV2021-4BA10

The manufacturer’s named successor and other parts in the same family. None is a drop-in replacement without checking wiring, I/O and configuration for your installation.

Product	Manufacturer	Type	Lifecycle	Relationship	Qty Available	Price	Action
Siemens 3RV2011-1JA10Motor protection circuit breaker S00, 7 ... 10 A, CLASS 10	Siemens	Motor protection circuit breaker	Active product (Siemens SiePortal)	Same family	On Request	On request	View ›
Siemens 3RV2021-4AA10Motor protection circuit breaker S0, 10 ... 16 A, CLASS 10	Siemens	Motor protection circuit breaker	Active product (Siemens SiePortal)	Same family	On Request	On request	View ›
Siemens 3RV2021-4DA10Motor protection circuit breaker S0, 18 ... 25 A, CLASS 10	Siemens	Motor protection circuit breaker	Active product (Siemens SiePortal)	Same family	On Request	On request	View ›

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