Skip to main content

Why 3VA molded case circuit breakers?

Ensure reliable protection for power distribution systems, motors and machines, minimize downtime, and provide operational transparency with the 3VA molded case circuit breakers.

Approved to UL 489 and IEC 60947, and certified with the Siemens EcoTech label, the system supports global applications, including system, motor, and generator protection. With modular design, highly variable configurations, and over 500 accessories for measurement, communication, and automation, they

  • provide efficient and reliable protection in any application
  • ensure high system availability through selective protection
  • integrate seamlessly into system and software landscapes
  • support sustainable transformation of industry and infrastructure

关键优势

确保可靠的选择性保护

通过精准协调的保护机制,为配电系统、电机和机械设备提供全面保护。全选择性技术确保仅隔离受故障影响的区域,而工厂的其他部分则能保持安全并持续运行。

实现透明度和数字集成

测量功能通过通信模块提供实时状态数据。无线且无缝地集成至上位系统,不仅确保了全方位的透明度,还为端到端能源管理提供了有力支持。

简化您的工程设计

通过减少变体数量、提高规划效率、与 SENTRON Powerconfig 的蓝牙® 连接以及跨应用程序的标准化保护设计,简化、加速和标准化您的项目。

3VA1

3VA2

3VA2 plus

3VA5

3VA6

3VA6 plus

Certification

IEC 60947

IEC 60947

IEC 60947

UL 489;
IEC 60947

UL 489;
IEC 60947

UL 489;
IEC 60947

Rated current

16 A – 1,000 A

25 A – 1,600 A

25 A – 630 A

15 A – 1,600 A (IEC/UL) / 2,000 A (UL)

40 A – 1,600 A (IEC/UL) / 2,000 A (UL)

40 A – 600 A (IEC/UL)

Breaking capacity (line protection)

16 kA – 110 kA at 415 V AC

16 kA – 110 kA at 415 V AC

16 kA – 110 kA at 415 V AC

16 kA – 110 kA at 415 V AC

16 kA – 110 kA at 415 V AC

16 kA – 110 kA at 415 V AC

Trip unit

TMTU

ETU

ETU

TMTU

ETU

ETU

核心功能

SENTRON 3VA2 plus 与 SENTRON 3VA6 plus 的技术优势

无论是通过状态监测实现更高效的维护和更高的系统可用性,还是卓越地适应不断变化的保护需求,亦或是集成先进的人员保护功能,SENTRON 3VA2 plus 和 SENTRON 3VA6 plus 塑壳断路器都为您开启了全新的可能。

Select...

集成 DAS+ 维护模式

借助 DAS+(动态电弧闪络哨兵+)功能,保护运维人员在开关柜内进行带电作业时免受电弧闪络的伤害。这一集成在 SENTRON 3VA2 plus 和 3VA6 plus 塑壳断路器中的“维护模式”,可通过 ETU(电子脱扣器)显示屏或数字量输入激活;在发生故障时,它能确保极其灵敏的脱扣动作,并自动将保护参数降至最小值。

常见问题解答

探索资源和相关产品

Brochures

Brochure 3VA MCCBs for DC Applications
Brochure 3VA Door Mounted Rotary Handles
Brochure 3VA5 and 3VA6 MCCBs
Brochure 3VA6 MCCBs

Manuals

Manual SENTRON 3VA MCCBs with IEC certificate
Manual 3VA UL / IEC MCCBs Manual
Manual SENTRON 3VA27 MCCBs & 3WL10 ACB
Communications manual | 3VA MCCBs with IEC- and UL-Certification

Selection Guides

Selection guide 3VA MCCBs
Selection guide 3VA UL Large Frame MCCBs
Selection guide Series-connected Short Circuit Series Ratings | MCCB
Selection guide Siemens Breakers for Global Solutions (Marine Circuit Breakers)

Cross references

Cross reference 3VA Series Rating UL
Cross reference Legacy MCCB to 3VA Guide

Spec Sheets

Spec Sheet Enclosures for the 3VA Circuit Breaker Family
Spec Sheet VA Circuit Breakers Stocking Suggestion and Conversion Tool

Downloads

Catalog LV 10 - SENTRON - SIVACON - ALPHA
Catalog LV 18 - SENTRON ACB & MCCBs with UL cert.
Siemens EcoTech Profile
SPEEDFAX - Section 7 Molded Case Circuit Breakers
Application Guide Zone Selective Interlocking (ZSI)
Conversion Guide Legacy MCCB to 3VA
Reference Guide MCCBs
Resource Guide 3VA Circuit Breaker Line

Software

Commissioning and service tool SENTRON Powerconfig
SENTRON Powerconfig mobile for iOS and Android
Energy monitoring software SENTRON Powercenter 3000
Energy management system SENTRON Powermanager

Success Stories

DigiTek: Siemens circuit breaker promotes energy efficiency in major automotive plant
Republic Plastics: Boosting efficiency with Siemens 3VA circuit breaker

Support

Online support
Support request
Trainings
TIP Consultant support
CAx download manager
FAQ | Component requirement for communication capability