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  2. Industrial Controls
  3. Motor Control
  4. 3RV2421-4BA10
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Circuit Breaker, S0 For Transformer Protection A-Release 14-20 A, Short-Circuit Release 325 A
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Motor Control - Circuit Breaker, S0 For Transformer Protection A-Release 14-20 A, Short-Circuit Release 325 A - 3RV2421-4BA10
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Siemens

Circuit Breaker, S0 For Transformer Protection A-Release 14-20 A, Short-Circuit Release 325 A

Part Number: 
1050443154
MPN: 
3RV2421-4BA10
Product Type: 
Motor Control

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Circuit Breaker, S0 For Transformer Protection A-Release 14-20 A, Short-Circuit Release 325 A

Circuit Breaker, S0 For Transformer Protection A-Release 14-20 A, Short-Circuit Release 325 A

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Technical Data Sheet

Product Details

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Product Details

Circuit breaker size S0 for transformer protection A-release 13...20 A N-release 325 A Screw terminal Standard switching capacity Circuit breaker SIRIUS 3RV2 For transformer protection for the reliable protection of transformers against short-circuit and overload. Thanks to their low heat loss, the compact and climate-resistant circuit breakers are optimized for use in load feeders, and also for IE3/IE4 motors, of course, and equally for the switching of direct current. Worldwide approvals (e.g. IEC and UL/CSA) and applications in hazardous areas (ATEX or IEC Ex) are a matter of course. Device versions are available for motor protection (also with overload relay function), plant protection, short-circuit protection of starter combinations, transformer protection, as main and EMERGENCY OFF switches and for use in IT networks. They are available with screw or spring-type terminals for fast, maintenance-free and vibration-proof connection, and optionally with integral auxiliary switch. The comprehensive range of accessories, such as auxiliary switches, auxiliary releases, signaling switches etc. is standardized for all sizes. The use of different energy infeed options, such as the associated SIRIUS 3RV29 infeed system, considerably reduces the main circuit wiring. The 3RV2 circuit breakers replace the well-proven 3RV1 series. Simple, efficient and always up to date - SIRIUS modular system.

Technical Specifications

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Technical Specifications

Moulded case circuit breaker (MCCB)
Type of control element Toggle
Degree of protection (IP rating) IP20
Device construction Suitable for fixed installation
Type of electrical connection of main circuit Screw connection
Rated short-circuit breaking capacity Icu at 400 V, 50 Hz 55 kA
Rated permanent current Iu 20 A
Number of auxiliary contacts as change-over contact 0
Number of auxiliary contacts as normally closed contact 0
Number of poles 3
Number of auxiliary contacts as normally open contact 0
Overload release current setting 13 - 20 A
 
Adjustment range short-term delayed short-circuit release - - - A
Adjustment range undelayed short-circuit release 325 - 325 A
Rated voltage 20 - 690 V
Motor drive optional No
Motor drive integrated No
DIN rail (top hat rail) mounting optional Yes
Complete device with protection unit Yes
Integrated earth fault protection No
Suitable for DIN rail (top hat rail) mounting No
Switched-off indicator available No
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