3RV2021-4DA10 Siemens SIRIUS Circuit breaker
€ 80.50
- 3RV2021-4DA10
- Circuit breaker
- Size S0
- For motor protection
- CLASS 10
- A release: 20-25 A
- N release: 325 A
- Screw connection
- Standard switching capacity
Availability: 198 in stock
Circuit breaker Siemens SIRIUS 3RV2021-4DA10
Overview
✓ Has this function or can use this accessory
— Does not have this function or cannot use this accessory
1) If all three phases are under symmetrical load.
2) For 1-phase, 2-phase and 3-phase asymmetrical loading of the three phases.
3) With molded-plastic enclosure 500 V AC.
4) Appropriate overload relays must be provided for motor overload protection.
5) According to UL 489 at 480 Y/277 V AC: 65 kA or 50 kA.
6) Only lateral auxiliary switches can be used.
The following illustration shows 3RV2 motor starter protectors/circuit breakers with the accessories that can be mounted for sizes S00 to S3 see the overview of the 3RV2 motor starter protectors at the start of the topic.
Mountable accessories for SIRIUS 3RV2 motor starter protectors
SIRIUS motor starter protector with spring-loaded terminals, size S0 (left) and SIRIUS motor starter protector with screw terminals, size S00 (right)
3RV2 motor starter protectors are compact current-limiting motor starter protectors that have been optimized for load feeders. The motor starter protectors are used for switching and protecting three-phase induction motors of up to 55/45 kW at 400 V AC and for other loads with rated currents of up to 100 A.
3RV2 motor starter protectors are usually approved compliant with IEC and UL/CSA. According to UL 508/UL 60947‑4‑1, the 3RV2 motor starter protectors/circuit breakers in sizes S00 to S3 are approved as:
- “Manual Motor Controllers”
- “Manual Motor Controllers” for “Group Installations”
- “Manual Motor Controllers Suitable for Tab Conductor Protection in Group Installations”
- “Self-Protected Combination Motor Controller (Type E)”
Please note that for this approval the 3RV20 motor starter protectors must be equipped with additional infeed terminals or phase barriers. For more information, see .
Corresponding short-circuit values, see .
The 3RV2…‑…..‑0BA0 motor starter protectors/circuit breakers can be used at low ambient temperatures down to -50 °C.
3RV20..‑…..‑0DA0 motor starter protectors/circuit breakers for system protection according to IEC and 3RV27 and 3RV28 motor starter protectors/circuit breakers according to UL 489 can be used for 1-phase, 2-phase and 3-phase loads, as these motor starter protector/circuit breakers do not have asymmetry detection.
The 3RV27 and 3RV28 are approved as circuit breakers according to UL 489; they are a special version of the 3RV2 motor starter protectors.
Thanks to their dimensions, the 3RV1011 motor starter protectors are suitable for installation in enclosures or under cramped installation conditions.
Type of construction
The 3RV2 motor starter protectors are available in four sizes:
- Size S00 – width 45 mm,
max. rated current 16 A,
at 400 V AC suitable for three-phase motors up to 7.5 kW - Size S0 – width 45 mm,
max. rated current 40 A,
at 400 V AC suitable for three-phase motors up to 18.5 kW - Size S2 – width 55 mm,
max. rated current 80 A,
at 400 V AC suitable for three-phase motors up to 37 kW - Size S3 – width 70 mm,
max. rated current 100 A,
at 400 V AC suitable for three-phase motors up to 45/55 kW
Circuit breakers acc. to UL 489
The 3RV27 and 3RV28 circuit breakers are available in two or three sizes:
- Size S00 – width 45 mm,
max. rated current 15 A, for 480 Y/277 V AC - Size S0 – width 45 mm,
max. rated current 22 A, for 480 Y/277 V AC - Size S3 – width 70 mm,
max. rated current 70 A, for 480 Y/277 V AC
Connection methods
The 3RV2 motor starter protectors/circuit breakers can be supplied with screw terminals and spring-loaded terminals.
Use in hazardous areas
The 3RV20 motor starter protectors for motor protection (without 3RV2…‑…..‑0BA0 and 3RV20..‑…..‑0DA0) have certification in accordance with both the European explosion protection directive (ATEX) and the international explosion protection standard (IECEx).
In accordance with the European directive (ATEX), the 3RV20 (without 3RV2…‑…..‑0BA0 and 3RV20..‑…..‑0DA0) are able to switch and protect explosion-proof motors of type of protection “Increased Safety EEx e”.
In accordance with the international guideline (IECEx), the 3RV20 (without 3RV2…‑…..‑0BA0 and 3RV20..‑…..‑0DA0) are able to switch and protect motors of the types “Increased Safety Ex e” or “Flameproof enclosure Ex d”.
Article No. scheme
Note:
The Article No. scheme shows an overview of product versions for better understanding of the logic behind the article numbers.
Please use the article numbers specified in the selection and ordering data for your order.
Application
Operating conditions
3RV2 motor starter protectors/circuit breakers are suitable for use in any climate. They are intended for use in enclosed rooms in which no severe operating conditions (such as dust, caustic vapors, hazardous gases) prevail. When installed in dusty and damp areas, suitable enclosures must be provided.
3RV2 motor starter protectors/circuit breakers can optionally be fed from the top or from below.
The permissible ambient temperatures, the maximum switching capacities, the tripping currents and other boundary conditions can be found in the technical specifications and tripping characteristics.
3RV2 motor starter protectors are suitable for operation in IT systems (IT networks). In this case, the different short-circuit breaking capacity in the IT system must be taken into account.
Since operational currents, starting currents and current peaks are different even for motors with identical power ratings due to the inrush current, the motor ratings in the selection tables are only guide values. The specific rated and start-up data of the motor to be protected is always paramount to the choice of the most suitable motor starter protector. This also applies to motor starter protectors for transformer protection.
Possible uses
The 3RV motor starter protectors/circuit breakers can be used:
- For short-circuit protection
- For motor protection (also with overload relay function)
- For system protection
- For short-circuit protection for starter combinations
- For transformer protection
- As main and EMERGENCY-STOP switches
- For operation in IT systems (IT networks)
- In areas subject to explosion hazard (ATEX)
- As circuit breaker according to UL 489 (3RV27 and 3RV28)
- For fuse monitoring
- For distance protection
Use of SIRIUS protection devices in conjunction with IE3/IE4 motors
Note:
For the use of 3RV2 motor starter protectors/circuit breakers in conjunction with highly energy-efficient IE3/IE4 motors, please observe the information on dimensioning and configuring, see .
Technical specifications
3RV2021-4DA10
Circuit breaker size S0 for motor protection, CLASS 10 A-release 18…25 A N-release 325 A Screw terminal Standard switching capacity
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| Weight | 0.370 kg |
|---|---|
| Dimensions | 49.00 × 102.00 × 102.00 mm |
| Brand | SIEMENS |
| product brand name | SIRIUS |
| product designation | Circuit breaker |
| design of the product | For motor protection |
| product type designation | 3RV2 |
| 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 |
| maximum permissible voltage for safe isolation in networks with grounded star point | – |
| ● between main and auxiliary circuit | 400 V |
| 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 IEC 81346-2 | Q |
| 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 |
| temperature compensation | -20 … +60 °C |
| relative humidity during operation | 10 … 95 % |
| number of poles for main current circuit | 3 |
| adjustable current response value current of the current-dependent overload release | 18 … 25 A |
| operating voltage | – |
| ● rated value | 20 … 690 V |
| ● at AC-3 rated value maximum | 690 V |
| operating frequency rated value | 50 … 60 Hz |
| operational current rated value | 25 A |
| operational current at AC-3 at 400 V rated value | 25 A |
| operating power at AC-3 | – |
| ● at 230 V rated value | 5.5 kW |
| operating frequency at AC-3 maximum | 15 1/h |
| 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 |
| ● phase failure detection | Yes |
| trip class | CLASS 10 |
| design of the overload release | thermal |
| breaking capacity operating short-circuit current (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 |
| breaking capacity maximum short-circuit current (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 | 325 A |
| 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 |
| 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 |
| mounting position | any |
| fastening method | screw 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 | – |
| — downwards | 50 mm |
| — upwards | 50 mm |
| — backwards | 0 mm |
| — at the side | 30 mm |
| — forwards | 0 mm |
| product component removable terminal for auxiliary and control circuit | No |
| type of electrical connection | – |
| ● for main current circuit | screw-type terminals |
| arrangement of electrical connectors for main current circuit | Top and bottom |
| type of connectable conductor cross-sections | – |
| — solid or stranded | 2x (1 … 2.5 mm²), 2x (2.5 … 10 mm²) |
| — finely stranded with core end processing | 2x (1 … 2.5 mm²), 2x (2.5 … 6 mm²), 1x 10 mm² |
| ● at AWG cables for main contacts | 2x (16 … 12), 2x (14 … 8) |
| tightening torque | – |
| ● for main contacts with screw-type terminals | 2 … 2.5 N·m |
| design of screwdriver shaft | Diameter 5 to 6 mm |
| size of the screwdriver tip | Pozidriv 2 |
| design of the thread of the connection screw | – |
| ● for main contacts | M4 |
| B10 value | – |
| proportion of dangerous failures | – |
| ● with high demand rate acc. to SN 31920 | 50 % |
| failure rate [FIT] | – |
| ● with low demand rate acc. to SN 31920 | 50 FIT |
| T1 value for proof test interval or service life acc. to IEC 61508 | 10 y |
| protection class IP on the front acc. to IEC 60529 | IP20 |
| touch protection on the front acc. to IEC 60529 | finger-safe, for vertical contact from the front |
| display version for switching status | Handle |
| For use in hazardous locations | Test Certificates Declaration of Conformity |
| last modified: | 11/30/2021 |
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