西门子电气 3VA Molded Case Circuit Breakers
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西门子电气塑壳断路器，3VA系列塑壳断路器
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© Siemens AG 2015
Introduction
3VA Molded Case Circuit Breakers
General data
1
■
Overview
Sizes
The integrated 3VA portfolio consists of two different series of The new 3VA1 molded case circuit breakers are available in 1 to
molded case circuit breakers in eight different rated operational 4-pole versions (3VA1 160 A) or in 3 and 4-pole versions (3VA1
current versions (sizes). 100 A and 250 A). The new 3VA2 molded case circuit breakers
are available in 3 and 4-pole versions.
The new 3VA molded case circuit breakers set new standards in
flexibility and the variety of modular accessories available. Stan- The circuit breakers are available with rated operational currents
dardized accessories suitable for use with several sizes of circuit ranging from 16 A to 630 A and rated voltages up to 690 V, de-
breaker from all the 3VA ranges help to cut costs and save time. pending on the series and size.
3VA1 molded case circuit breakers Thermal-magnetic trip unit
The new 3VA1 molded case circuit breakers reliably perform all A thermal-magnetic principle trip unit is the basic trip unit for
the tasks required for line protection. providing overload and short-circuit protection. This has been
developed for implementing economical, cost-efficient installa-
Features
tions up to 250 A. It is suitable for use in three-phase networks,
The key features of the 3VA1 series are: AC networks, 400 Hz applications, and with DC currents.
(cid:129) Compact design
(cid:129) Depending on size: 1-pole to 4-pole versions
(cid:129) Depending on size: breaking capacities of
16 kA … 70 kA at 415 V, 3 or 4-pole breakers and
36 kA at 240 V,1-pole breakers
(cid:129) Fixed-mounted, plug-in version (depending on size)
(cid:129) Thermal-magnetic trip units
(cid:129) AC/DC applications
(cid:129) No derating up to +50 °C
(cid:129) Modular and easy-to-fit internal accessories with diverse func-
tions
(cid:129) Uniform accessories platform across all 3VA molded case cir-
cuit breakers
Compact dimensions
Thanks to a mounting depth of 70 mm and a cover size of 45
mm, the 3VA1 molded case circuit breakers of sizes 100 A, 160
A and 250 A are predestined for protecting cables and lines in
the plant area, especially for the electrical installation area. For
these applications, there is also a wide range of accessories
available such as adapters for installation on standard mounting
rails, as well as residual current devices (RCD310 (up to 160A)
and RCD510) that can be side-mounted.
1/2 Siemens · 04/2015© Siemens AG 2015
Introduction
3VA Molded Case Circuit Breakers
General data
1
3VA2 molded case circuit breakers
The new 3VA2 molded case circuit breakers reliably perform all Electronic Trip Units (ETUs)
the tasks required for line protection, generator protection, motor
The current sensor of the 3VA2 comprises an iron-cored trans-
protection and protection of starter combinations.
former for the internal power supply and a Rogowski coil for pre-
This series is designed for applications with increased require- cise current measurement. Each transformer can be optimized
ments: accordingly for its specific task. Thanks to the high accuracy of
current measurement, the 3VA2 molded case circuit breaker is
(cid:129) Increased breaking capacity
suitable for power/energy measurement. In addition, finer ad-
(cid:129) Very good selective protection
justment of ground fault current monitoring is possible.
(cid:129) Integrated metering function
The Electronic Trip Units (ETUs) provide the following protection
(cid:129) Connection to a fieldbus communication system functions:
Features (cid:129) Overload protection L ("L" = Long-time delay)
The most important features of the 3VA2 series are: (cid:129) Short-time delayed short-circuit protection S ("S" = Short-time
delay) for time-selective response in case of a short-circuit
(cid:129) Compact dimensions
(cid:129) Instantaneous short-circuit protection I ("I" = Instantaneous)
(cid:129) 3 and 4-pole versions
(cid:129) Protection of the neutral conductor N against overload and
(cid:129) Four breaking capacity classes from 55 kA to 150 kA
short-circuit ("N" = Neutral)
(cid:129) Fixed-mounting, plug-in technology, draw-out technology
(cid:129) Protection against residual currents to ground G ("G" = Ground
(cid:129) Depending on size: selective protection response in rated op- fault)
erational current interval 1 : 2.5
(cid:129) ELISA:
(cid:129) Electronic Trip Units Improved selective grading of downstream LV HRC fuses and
(cid:129) Retrofittable communication for ETU 5-series and 8-series upstream molded case circuit breakers by means of a special
form of current-time characteristic
(cid:129) Depending on the ETU: integrated metering function
(cid:129) AC applications Energy management and communication
(cid:129) No derating up to +50 °C The Electronic Trip Units (ETUs) provide the following energy
management and communication functions:
(cid:129) Modular and easy-to-fit internal accessories with diverse func-
tions (cid:129) Metering functions
(cid:129) Uniform accessories platform across all 3VA molded case cir- (cid:129) Communication
cuit breakers (cid:129) Flexible, local, digital inputs and outputs via the EFB300 exter-
Compact dimensions with function expansions nal function box
(cid:129) Software commissioning support with powerconfig
In addition to its expanded functionality, the 3VA2 molded case
circuit breaker also comes with compact dimensions for fixed (cid:129) Testing and archiving with the TD300 and TD500 test devices
mounting, as a plug-in version and a draw-out version. (with powerconfig)
A cover size of 70 mm for the door cutout and a complete selec-
tion of breaking capacity classes from 55 kA to 150 kA at 415 V
AC provide the necessary flexibility for planning.
Despite its compact size, the circuit breaker offers the following
Introduction
3VA Molded Case Circuit Breakers
General data
1
■
Overview
Sizes
The integrated 3VA portfolio consists of two different series of The new 3VA1 molded case circuit breakers are available in 1 to
molded case circuit breakers in eight different rated operational 4-pole versions (3VA1 160 A) or in 3 and 4-pole versions (3VA1
current versions (sizes). 100 A and 250 A). The new 3VA2 molded case circuit breakers
are available in 3 and 4-pole versions.
The new 3VA molded case circuit breakers set new standards in
flexibility and the variety of modular accessories available. Stan- The circuit breakers are available with rated operational currents
dardized accessories suitable for use with several sizes of circuit ranging from 16 A to 630 A and rated voltages up to 690 V, de-
breaker from all the 3VA ranges help to cut costs and save time. pending on the series and size.
3VA1 molded case circuit breakers Thermal-magnetic trip unit
The new 3VA1 molded case circuit breakers reliably perform all A thermal-magnetic principle trip unit is the basic trip unit for
the tasks required for line protection. providing overload and short-circuit protection. This has been
developed for implementing economical, cost-efficient installa-
Features
tions up to 250 A. It is suitable for use in three-phase networks,
The key features of the 3VA1 series are: AC networks, 400 Hz applications, and with DC currents.
(cid:129) Compact design
(cid:129) Depending on size: 1-pole to 4-pole versions
(cid:129) Depending on size: breaking capacities of
16 kA … 70 kA at 415 V, 3 or 4-pole breakers and
36 kA at 240 V,1-pole breakers
(cid:129) Fixed-mounted, plug-in version (depending on size)
(cid:129) Thermal-magnetic trip units
(cid:129) AC/DC applications
(cid:129) No derating up to +50 °C
(cid:129) Modular and easy-to-fit internal accessories with diverse func-
tions
(cid:129) Uniform accessories platform across all 3VA molded case cir-
cuit breakers
Compact dimensions
Thanks to a mounting depth of 70 mm and a cover size of 45
mm, the 3VA1 molded case circuit breakers of sizes 100 A, 160
A and 250 A are predestined for protecting cables and lines in
the plant area, especially for the electrical installation area. For
these applications, there is also a wide range of accessories
available such as adapters for installation on standard mounting
rails, as well as residual current devices (RCD310 (up to 160A)
and RCD510) that can be side-mounted.
1/2 Siemens · 04/2015© Siemens AG 2015
Introduction
3VA Molded Case Circuit Breakers
General data
1
3VA2 molded case circuit breakers
The new 3VA2 molded case circuit breakers reliably perform all Electronic Trip Units (ETUs)
the tasks required for line protection, generator protection, motor
The current sensor of the 3VA2 comprises an iron-cored trans-
protection and protection of starter combinations.
former for the internal power supply and a Rogowski coil for pre-
This series is designed for applications with increased require- cise current measurement. Each transformer can be optimized
ments: accordingly for its specific task. Thanks to the high accuracy of
current measurement, the 3VA2 molded case circuit breaker is
(cid:129) Increased breaking capacity
suitable for power/energy measurement. In addition, finer ad-
(cid:129) Very good selective protection
justment of ground fault current monitoring is possible.
(cid:129) Integrated metering function
The Electronic Trip Units (ETUs) provide the following protection
(cid:129) Connection to a fieldbus communication system functions:
Features (cid:129) Overload protection L ("L" = Long-time delay)
The most important features of the 3VA2 series are: (cid:129) Short-time delayed short-circuit protection S ("S" = Short-time
delay) for time-selective response in case of a short-circuit
(cid:129) Compact dimensions
(cid:129) Instantaneous short-circuit protection I ("I" = Instantaneous)
(cid:129) 3 and 4-pole versions
(cid:129) Protection of the neutral conductor N against overload and
(cid:129) Four breaking capacity classes from 55 kA to 150 kA
short-circuit ("N" = Neutral)
(cid:129) Fixed-mounting, plug-in technology, draw-out technology
(cid:129) Protection against residual currents to ground G ("G" = Ground
(cid:129) Depending on size: selective protection response in rated op- fault)
erational current interval 1 : 2.5
(cid:129) ELISA:
(cid:129) Electronic Trip Units Improved selective grading of downstream LV HRC fuses and
(cid:129) Retrofittable communication for ETU 5-series and 8-series upstream molded case circuit breakers by means of a special
form of current-time characteristic
(cid:129) Depending on the ETU: integrated metering function
(cid:129) AC applications Energy management and communication
(cid:129) No derating up to +50 °C The Electronic Trip Units (ETUs) provide the following energy
management and communication functions:
(cid:129) Modular and easy-to-fit internal accessories with diverse func-
tions (cid:129) Metering functions
(cid:129) Uniform accessories platform across all 3VA molded case cir- (cid:129) Communication
cuit breakers (cid:129) Flexible, local, digital inputs and outputs via the EFB300 exter-
Compact dimensions with function expansions nal function box
(cid:129) Software commissioning support with powerconfig
In addition to its expanded functionality, the 3VA2 molded case
circuit breaker also comes with compact dimensions for fixed (cid:129) Testing and archiving with the TD300 and TD500 test devices
mounting, as a plug-in version and a draw-out version. (with powerconfig)
A cover size of 70 mm for the door cutout and a complete selec-
tion of breaking capacity classes from 55 kA to 150 kA at 415 V
AC provide the necessary flexibility for planning.
Despite its compact size, the circuit breaker offers the following
AIGC西门子（Siemens）的3VA系列塑壳断路器是一种高级低压配电设备，专为工业和住宅电力系统设计。这种型号的断路器采用了模铸外壳技术，结合了坚固耐用与紧凑型结构的优势，能够承受各种环境条件下的应用需求。3VA系列断路器具备快速分断能力，可以有效地保护电路免受过载、短路以及欠电压等故障的损害，同时集成有多种保护功能如瞬时脱扣、延时动作、电流增量脱扣等功能，以确保用电设备的安全运行。
西门子3VA系列断路器具有广泛的电流范围覆盖，从几安培到数千安培不等，能够满足不同负载容量和分断要求的需求。它们通常应用于电机控制、馈电线路、照明回路以及其他各类工业自动化和建筑电力系统的分支或主开关位置。由于其卓越的性能、可靠性及品牌信誉，西门子3VA系列塑壳断路器在众多行业客户中得到了广泛的应用和认可。
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