✔ In Stock (Can ship in 5-7 days)

Online Support 24/7
12 Months Warranty for New Products
30 Days Money Back Guarantee
| Type | 3RV2 |
| Breaker Type | Motor Protection Circuit Breakers |
| Rated current | 28 |
| Number of Poles | 2 pole |
| Setting range for thermal overload releases | 23...28 A |
Circuit breaker size S0 for motor protection, CLASS 10 A-release
23...28 A N-release 364 A Spring-type terminal Standard switching
capacity with transverse auxiliary switches 1 NO+1 NC
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 13.25?W
at AC in hot operating state per pole 4.4?W
insulation voltage with degree of pollution 3 at AC
rated value
690?V
surge voltage resistance rated value 6?kV
maximum permissible voltage for safe isolation
in networks with grounded star point between
main and auxiliary circuit
400?V
protection class IP
on the front IP20
of the terminal IP20
shock resistance
acc. to IEC 60068-2-27 25g / 11 ms
mechanical service life (switching cycles)
of the main contacts typical 100?000
of auxiliary contacts typical 100?000
electrical endurance (switching cycles)
typical 100?000
type of protection according to ATEX directive
2014/34/EU
Ex II (2) GD
certificate of suitability according to ATEX directive
2014/34/EU
DMT 02 ATEX F 001
reference code acc. to DIN EN 81346-2 Q
Ambient conditions
installation altitude at height above sea level
maximum
2?000?m
Main circuit
number of poles for main current circuit 3
adjustable pick-up value current of the currentdependent overload release
23?...?28?A
operating voltage
rated value 690?V
at AC-3 rated value maximum 690?V
operating frequency rated value 50?...?60?Hz
operating current rated value 28?A
operating current
at AC-3
at 400 V rated value 28?A
operating power
at AC-3
at 230 V rated value 7?500?W
at 400 V rated value 15?000?W
at 500 V rated value 18?500?W
at 690 V rated value 22?000?W
operating frequency
at AC-3 maximum 15?1/h
Auxiliary circuit
design of the auxiliary switch transverse
number of NC contacts for auxiliary contacts 1
number of NO contacts for auxiliary contacts 1
number of CO contacts
for auxiliary contacts 0
operating current of auxiliary contacts at AC-15
at 24 V 2?A
at 120 V 0.5?A
at 125 V 0.5?A
at 230 V 0.5?A
operating current of auxiliary contacts at DC-13
at 24 V 1?A
at 60 V 0.15?A
Protective and monitoring functions
product function
ground fault detection No
phase failure detection Yes
trip class CLASS 10
design of the overload release thermal
operational 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
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
response value current
of instantaneous short-circuit trip unit 364?A
UL/CSA ratings
full-load current (FLA) for three-phase AC motor
at 480 V rated value 28?A
at 600 V rated value 28?A
yielded mechanical performance hp
for single-phase AC motor
at 110/120 V rated value 2?hp
at 230 V rated value 5?hp
for three-phase AC motor
at 200/208 V rated value 7.5?hp
at 220/230 V rated value 10?hp
at 460/480 V rated value 20?hp
contact rating of auxiliary contacts according to UL C300 / R300
Short-circuit protection
product function short circuit protection Yes
design of the short-circuit trip magnetic
design of the fuse link
for short-circuit protection of the auxiliary switch
required
Fuse gL/gG: 10 A, miniature circuit breaker C 6 A (short-circuit
current Ik < 400 A)
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 63 A
at 690 V gL/gG 63 A
Installation/ mounting/ dimensions
mounting position any
mounting type screw and snap-on mounting onto 35 mm standard mounting rail
according to DIN EN 60715
height 119?mm
width 45?mm
depth 97?mm
Ask questions
(0/1,200)
- Q: Can I change the size or color of an item after placing an order?
A: If you need to change the size or color of an item after placing an order, please contact our customer service team as soon as possible. We will assist you in modifying the order if it hasn't been processed for shipping.
- Q: How can I participate in promotions or giveaways organized by sellers?
A: We regularly hold promotional events and organize giveaways and gift activities. You can follow our official announcements, emails, or social media channels to get information on how to participate and the details of these activities.
- Q: How can I provide feedback or share my shopping experience with you?
A: We highly value your feedback and would like to hear about your shopping experience. You can contact our customer service or provide feedback through the "Screenshot Feedback" feature on our website. We welcome your opinions and suggestions as they help us improve our services and better serve our customers.
Reviews
- W
William Rudolph
Jul 20, 2025
Siemens Circuit Breaker 3RV2021-4NA25Register and order quickly and easily!HelpfulUnhelpful - J
Jim Stephens
Jan 06, 2025
Siemens Circuit Breaker 3RV2021-4NA25Quick delivery, thanks for the prompt service.HelpfulUnhelpful - K
Kay Shepherd
Oct 29, 2024
Siemens Circuit Breaker 3RV2021-4NA25I'm glad I don't have to struggle with this website.HelpfulUnhelpful - J
Jeremy Williams
Jan 23, 2024
Siemens Circuit Breaker 3RV2021-4NA25Shopped for controls and these guys came through with best website and prices. A++HelpfulUnhelpful - A
Anonymous user
Nov 25, 2022
Siemens Circuit Breaker 3RV2021-4NA25All was ok! No problems whatsoever.HelpfulUnhelpful
Siemens Circuit Breaker 3RV2021-4NA25
✔ In Stock (Can ship in 5-7 days)

Online Support 24/7
12 Months Warranty for New Products
30 Days Money Back Guarantee
People who bought this item also viewed
Siemens Circuit Breaker 3VU1340-0MM00
Siemens Circuit Breaker 3AH4305-8RE44-0ED2-Z
Siemens Circuit Breaker 3WL1340-4CB35-4GN4-Z
Siemens Circuit Breaker 5SY4401-8CC
AEG Circuit Breaker MCL168N
ABB Circuit Breaker MS116-1.0
COOPER Transformer TP1-470-R
Eaton Contactor DILM12-01(600V60HZ)
Ferraz Shawmut Fuse D73GB35V1000TF
TYCO Relay V23092-S1005-A301
EPCOS Resistor B72660M600K7
Customers frequently viewed
IWAYA DENKI Water Pump 25CJT0752
Panasonic Servo Motor MHMF022L1V2M
Honeywell Solenoid Valve VE4025B1045
ROTEN Mechanical Seal 8E5K-22-X
SANDSUN Overload Pump VA08H-760
GS Battery 6-QW-60(450)-(55D23L-KR)
Rechi Compressor 44R273A
MINDMAN Air Cylinder MCQV2-11-40-200
Mitsubishi Compressor YB645WTG
Siemens Circuit Breaker 3RV5331-4EC10
Copeland Compressor ZR250KCE-TW5-265
Nidec Fan M34172-55G
BKD Bearing 29318M-P4
NMB Sensor BLC-1.2K-A
WECO Light Curtain WECO-917B61-AC220
Daikin Compressor JT250KAVD
NSK Servo Drive ESA-Y5120A23-20
Fuji Belt A-136

