Data sheet
3RV2021-4DA20
Circuit breaker size S0 for motor protection, CLASS 10 A-release 18...25 A Nrelease 325 A Spring-type terminal Standard switching capacity
product brand name
SIRIUS
product designation
Circuit breaker
design of the product
For motor protection
product type designation
3RV2
General technical data
size of the circuit-breaker
S0
size of contactor can be combined company-specific
S00, S0
product extension auxiliary switch
Yes
power loss [W] for rated value of the current
● at AC in hot operating state
10.5 W
● at AC in hot operating state per pole
3.5 W
insulation voltage with degree of pollution 3 at AC rated value
690 V
surge voltage resistance rated value
6 kV
shock resistance according to IEC 60068-2-27
25g / 11 ms
mechanical service life (operating cycles)
● of the main contacts typical
100 000
● of auxiliary contacts typical
100 000
electrical endurance (operating cycles) typical
100 000
reference code according to IEC 81346-2
Q
Substance Prohibitance (Date)
10/01/2009
SVHC substance name
Lead - 7439-92-1
Ambient conditions
installation altitude at height above sea level maximum
2 000 m
ambient temperature
● during operation
-20 ... +60 °C
● during storage
-50 ... +80 °C
● during transport
-50 ... +80 °C
relative humidity during operation
10 ... 95 %
Main circuit
number of poles for main current circuit
3
adjustable current response value current of the currentdependent overload release
18 ... 25 A
operating voltage
● rated value
20 ... 690 V
● at AC-3 rated value maximum
690 V
● at AC-3e rated value maximum
690 V
operating frequency rated value
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50 ... 60 Hz
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© Copyright Siemens
operational current rated value
25 A
operational current
● at AC-3 at 400 V rated value
25 A
● at AC-3e at 400 V rated value
25 A
operating power
● at AC-3
— at 230 V rated value
5.5 kW
— at 400 V rated value
11 kW
— at 500 V rated value
15 kW
— at 690 V rated value
22 kW
● at AC-3e
— at 230 V rated value
5.5 kW
— at 400 V rated value
11 kW
— at 500 V rated value
15 kW
— at 690 V rated value
22 kW
operating frequency
● at AC-3 maximum
15 1/h
● at AC-3e maximum
15 1/h
Auxiliary circuit
number of NC contacts for auxiliary contacts
0
number of NO contacts for auxiliary contacts
0
number of CO contacts for auxiliary contacts
0
Protective and monitoring functions
product function
● ground fault detection
No
● phase failure detection
Yes
trip class
CLASS 10
design of the overload release
thermal
maximum short-circuit current breaking capacity (Icu)
● at AC at 240 V rated value
100 kA
● at AC at 400 V rated value
55 kA
● at AC at 500 V rated value
10 kA
● 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
● at 400 V rated value
25 kA
● at 500 V rated value
5 kA
● at 690 V rated value
2 kA
response value current of instantaneous short-circuit trip unit
325 A
UL/CSA ratings
full-load current (FLA) for 3-phase AC motor
● at 480 V rated value
25 A
● at 600 V rated value
25 A
yielded mechanical performance [hp]
● for single-phase AC motor
— at 110/120 V rated value
2 hp
— at 230 V rated value
3 hp
● for 3-phase AC motor
— at 200/208 V rated value
5 hp
— at 220/230 V rated value
7.5 hp
— at 460/480 V rated value
15 hp
Short-circuit protection
product function short circuit protection
Yes
design of the short-circuit trip
magnetic
design of the fuse link for IT network for short-circuit
protection of the main circuit
● at 400 V
gL/gG 63 A
● at 500 V
gL/gG 50 A
● at 690 V
gL/gG 50 A
Installation/ mounting/ dimensions
mounting position
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any
5/23/2024
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© Copyright Siemens
fastening method
screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
height
119 mm
width
45 mm
depth
97 mm
required spacing
● with side-by-side mounting at the side
0 mm
● for grounded parts at 400 V
— downwards
30 mm
— upwards
30 mm
— at the side
9 mm
● for live parts at 400 V
— downwards
30 mm
— upwards
30 mm
— at the side
9 mm
● for grounded parts at 500 V
— downwards
30 mm
— upwards
30 mm
— at the side
9 mm
● for live parts at 500 V
— downwards
30 mm
— upwards
30 mm
— at the side
9 mm
● for grounded parts at 690 V
— downwards
50 mm
— upwards
50 mm
— backwards
0 mm
— at the side
30 mm
— forwards
0 mm
● for live parts at 690 V
— downwards
50 mm
— upwards
50 mm
— backwards
0 mm
— at the side
30 mm
— forwards
0 mm
Connections/ Terminals
type of electrical connection
● for main current circuit
arrangement of electrical connectors for main current
circuit
spring-loaded terminals
Top and bottom
type of connectable conductor cross-sections
● for main contacts
— solid or stranded
2x (1 ... 10 mm²)
— finely stranded with core end processing
2x (1 ... 6 mm²)
— finely stranded without core end processing
2x (1 ... 6 mm²)
● for AWG cables for main contacts
2x (18 ... 8)
design of screwdriver shaft
Diameter 3 mm
size of the screwdriver tip
3,0 x 0,5 mm
Safety related data
product function suitable for safety function
Yes
suitability for use
● safety-related switching on
No
● safety-related switching OFF
Yes
service life maximum
10 a
test wear-related service life necessary
Yes
proportion of dangerous failures
● with low demand rate according to SN 31920
40 %
● with high demand rate according to SN 31920
50 %
B10 value with high demand rate according to SN 31920
5 000
failure rate [FIT] with low demand rate according to SN
31920
50 FIT
ISO 13849
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© Copyright Siemens
device type according to ISO 13849-1
3
overdimensioning according to ISO 13849-2 necessary
Yes
IEC 61508
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
Electrical Safety
protection class IP on the front according to IEC 60529
IP20
touch protection on the front according to IEC 60529
finger-safe, for vertical contact from the front
Display
display version for switching status
Handle
Approvals Certificates
General Product Approval
Confirmation
General Product Approval
For use in hazardous locations
KC
Test Certificates
Special Test Certificate
Marine / Shipping
Type Test Certificates/Test Report
Marine / Shipping
other
Miscellaneous
other
Confirmation
Railway
Environment
Special Test Certificate
Confirmation
Environment
Environmental Confirmations
Further information
Information on the packaging
https://support.industry.siemens.com/cs/ww/en/view/109813875
Information- and Downloadcenter (Catalogs, Brochures,…)
https://www.siemens.com/ic10
Industry Mall (Online ordering system)
https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RV2021-4DA20
Cax online generator
http://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RV2021-4DA20
Service&Support (Manuals, Certificates, Characteristics, FAQs,...)
https://support.industry.siemens.com/cs/ww/en/ps/3RV2021-4DA20
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)
http://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RV2021-4DA20&lang=en
Characteristic: Tripping characteristics, I²t, Let-through current
https://support.industry.siemens.com/cs/ww/en/ps/3RV2021-4DA20/char
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© Copyright Siemens
Further characteristics (e.g. electrical endurance, switching frequency)
http://www.automation.siemens.com/bilddb/index.aspx?view=Search&mlfb=3RV2021-4DA20&objecttype=14&gridview=view1
3RV20214DA20
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© Copyright Siemens
5/L3
3/L2
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last modified:
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4/12/2024
5/23/2024
Subject to change without notice
© Copyright Siemens
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