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能源与自动化的先进技术

为能源管理、工业自动化和智能建筑控制提供创新解决方案，专为高效和可靠而设计。

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Price
USD USD
Manufacturers
Colour
Surface protection
Lamp holder
Wiring system
Power
Outer diameter
Diameter
more... less
Material
Model
Rated control supply voltage DC
more... less
Voltage type for actuating
Rated voltage
more... less
Operating temperature
more... less
Width/grid dimension
Number of levels
Number of clamp positions per level
Connectable conductor cross section solid-core
more... less
Connectable conductor cross section fine-strand with cable end sleeve
more... less
Connectable conductor cross section fine-strand without cable end sleeve
more... less
Connectable conductor cross section multi-wired
more... less
Rated current In
more... less
Thickness
Rated control supply voltage AC 50 Hz
more... less
Rated control supply voltage AC 60 Hz
more... less
Nominal current
Number of contacts as normally closed contact
Number of contacts as normally open contact
Number of contacts as change-over contact
Number of phases
Operating voltage
Rated operation current Ie at AC-1
Rated operation current Ie at AC-3
Rated operation current Ie at AC-51
Rated operation current Ie at AC-53a
Supply voltage for defect-indication
Nominal voltage
Rated current
more... less
Number of bridged clamps
Material quality
Modular spacing
more... less
Type of electric connection
Breaking capacity
Rated operating frequency
Nominal voltage DC
Material thickness
Number of channels
Rated supply voltage DC
Power consumption
SIL according to IEC 61508
Ambient temperature
more... less
Modular version
Built-in height
more... less
Built-in width
more... less
Suitable for safety functions
Voltage type (supply voltage)
1st secondary output voltage
Rated supply voltage AC 50 Hz
Rated supply voltage AC 60 Hz
Performance level according to EN ISO 13849-1
Max. output current 1
more... less
Nominal value output voltage 1
Nominal value output current 1
more... less
RAL-number
Surface finishing
Current measuring range
Type of voltage (input voltage)
Type of digital output
Type of output voltage
Rated operation current Ie
more... less
With potential separation
Explosion safety category for gas
Explosion safety category for dust
Supply voltage DC
more... less
Power output
more... less
Rated operating frequency
Rated supply voltage AC
Load
Temperature drift
Integrated configuration function
Secondary voltage 1
Primary voltage 1
Type of interface
Width in number of modular spacings
more... less
2nd secondary output voltage
3rd secondary output voltage
Max. output current 2
Max. output current 3
Nominal value output voltage 2
Nominal value output voltage 3
Nominal value output current 2
Nominal value output current 3
Max. rated operation voltage Ue
Max. rated current (Ith) at rated voltage DC
more... less
Number of poles, primary side
Rated current AC
more... less
Degree of protection (IP), front side
Supply voltage AC 50 Hz
more... less
Supply voltage AC 60 Hz
more... less
Number of voltage measurement inputs
Number of current measurement inputs
Max. output current
Suitable for max. current main contact unit
Number of conductors (without earthing)
Voltage protection level
Nominal discharge surge current (8/20)
Max. continuous voltage DC
Max. PV-voltage
Max. conductor cross section solid (solid, stranded)
Max. conductor cross section flexible (fine-strand)
Max. discharge surge current (8/20)
Max. continuous voltage AC
Nominal voltage AC
With mounting plate
Number of rows
Number of actuation directions
Max. length of pull cord
Rated operation current Ie at AC-15, 230 V
Hole diameter
Diameter cap
Connection type auxiliary circuit
Colour button
Width opening
Height opening
more... less
Forced opening
Colour outer sheath
Number of cores
Type of electrical accessory/spare part
Output voltage AC 50 Hz
Output voltage AC 60 Hz
Output voltage DC
Input voltage AC 50 Hz
Input voltage AC 60 Hz
Max. output current DC
Max. input current AC 50 Hz
Max. input current AC 60 Hz
Input voltage DC
Max. input current DC
more... less
Number of HW-interfaces RS-422
Supporting protocol for PROFINET IO
Resolution of the analogue inputs
Resolution of the analogue outputs
Type of data transmission
Transmission rate
Number of HW-interfaces industrial Ethernet
Input current at signal 1
more... less
Time delay at signal change
more... less
Permitted voltage at output
more... less
Permitted voltage at input
Output current
Short-circuit protection, outputs available
Redundancy
Number of interfaces PROFINET
Number of HW-interfaces RS-232
Memory size
more... less
Processing time (1K, binary operation)
more... less
Number of relay outputs
System accessory
Number of slots
Suitable for operating system Windows XP
Suitable for other operating system
Suitable for operating system Windows 2003 Server
Suitable for operating system Windows 7
Suitable for operating system Windows 8
Suitable for operating system Windows 2000
Object library
Integrated diagnosis function
Integrated application configuration function
Integrated data detection function
Integrated communication function
Put into operation function integrated
Simulation function integrated
Integrated motion function
With editor for programming language Flowchart
With editor for programming language SFC (Sequential Function Chart)
Integrated analysis function
According to IEC 1131-3 (DIN EN 61131-3)
Industry- and technological expansions
Max. number of servers
Max. number of clients
Max. number of multi-users configuration
Integrable in the engineering software o.t autom.system
Number of online/runtime languages
Number of configuration-/runtime languages
Number of configuration-/desktop languages
With script language Visual Basic
With other script language
Library with object elements
Message system
User archive/recipes management
Reporting system/protocol system
Function process diagnostics
SQL-database
With OPC-interface, server
With OPC-interface, client
With programming interfaces
Min. required processor speed for runtime system
Min. required main memory for runtime system
Runtime operating system, other
Min. required processor speed for configuration software
Min. required main memory for configuration software
SCADA functionality
Trend representation
Loadable for operating system for configuration software, Windows 7
Multi-user capable, runtime
User groups (password protection) possible
Alarm-management
Language switch possible
Coating housing
With status indication
Type of interface for safety communication
Construction type housing
Rated operation current Ie at DC-13, 24 V
Width sensor
Height of sensor
more... less
Length of sensor
more... less
Permitted cable outer temperature during assembling/handling
more... less
Permitted cable outer temperature after assembling without vibration
more... less
Number of safety auxiliary contacts
Guard locking force
Rated operation current Ie at DC-13, 230 V
Rated operation current Ie at AC-15, 125 V
Rated operation current Ie at AC-15, 24 V
Rated operation current Ie at DC-13, 125 V
Switching function
Type of control element
Diameter sensor
Alignment of the control element
Number of outputs, signalling function, undelayed, with contact
Supply voltage
Connection cable length
Opening diameter
Rated primary current
more... less
Number of measuring circuits
Number of revolutions
Number of outputs, signalling function, undelayed, semiconductors
Max. electricity consumption
Max. transmission range
more... less
Flame retardant
Category
AWG-size
Operating voltage AC 50 Hz
more... less
Operating voltage AC 60 Hz
more... less
Operating voltage DC
Release-delay
Number of outputs, safety related, undelayed, with contact
Rated switch current
Number of outputs, safety related, delayed, with contact
Number of outputs, safety related, undelayed, semiconductors
Number of outputs, safety related, delayed, semiconductors
Number of ports PoE
Number of outputs, delayed, change-over contact
Time range
Number of outputs, delayed, normally open contact
Number of outputs, undelayed, normally open contact
Nominal switching current at 250 V AC
Power loss
more... less
Number of digits
Built-in depth
more... less
Front plate width
Front plate height
Diameter panel opening
Accuracy per day
Frequency input voltage
Max. current (Imax)
Nominal current (In)
Screen diagonal
Number of colours of the display
Number of pixels, horizontal
Number of pixels, vertical
Number of function buttons, programmable
Useful project memory/user memory
Number of password levels
Number of online languages
Width of the front
more... less
Height of the front
more... less
Number of buttons with LED
Tube length
Type of electrical connection for auxiliary- and control current circuit
Rated voltage Ue at AC 50 Hz
Rated voltage Ue at AC 60 Hz
Rated voltage Ue at DC
Rated clock frequency
Rated frequency
Integrated evaluation function
Technology function integrated
With editor for manufacturer specific programming language
Suitable for operating system Windows ME
Suitable for operating system Windows CE
Loudness
RAL-number (similar)
Electricity consumption
Operating voltage
Emergency power supply integrated
Capacity
Height including pole
Number of cells
With connection cable
Interface external
Frequency
Rated operating voltage
Number of buttons
Assembly width (in number of modular spacings)
Device fitting
Additional equipment
Rated insulation voltage Ui
Rated fault current
Leakage current type
Short-circuit breaking capacity (Icw)
Surge current capacity
Pollution degree
Frequency
With interlocking device
Additional equipment possible
Rated impulse withstand voltage Uimp
Selective protection
Release characteristic
Over voltage category
Number of protected poles
Concurrently switching neutral conductor
Rated short-circuit breaking capacity according to IEC 60947-2
Number of poles (total)
Rated short-circuit breaking capacity according to EN 61009
Rated fault current
Anti-nuisance tripping version
Current limiting class
Rated short-circuit breaking capacity Icn according to EN 61009-1
Disconnection characteristic
Frequency
Rated switch current auxiliary device
Rated voltage auxiliary device
Number of fault-signal switches
Rated short-circuit breaking capacity Icn according to EN 60898 at 400 V
Rated short-circuit breaking capacity Icn according to EN 60898 at 230 V
Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 230 V
Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 400 V
Rated voltage
Max. permitted delay-on energization time
Response value amperage 1
Response value amperage 2
Rated permanent current Iu
more... less
Number of switches
Type of electrical connection of main circuit
Version as main switch
Rated short-time withstand current lcw
more... less
Colour control element
Suitable for front mounting centre
Suitable for distribution board installation
Suitable for intermediate mounting
Max. rated operation voltage Ue AC
Device construction
Rated switching capacity
Rated surge voltage invariability
Number of primary inputs
Rated secondary apparent power
Number of positions total (counter)
Pulse rate
Nominal voltage (Un) N-L
Nominal voltage (Un) L-L
Cross section
Suitable for number of devices
more... less
Module width
Frequency supply voltage
Autonomy in hours
Shortest switching time channel 1
Program shift divide 1
Number of memory locations
Autonomy in years
Conductor material
Type of insulation material according to IEC 85
Secondary voltage 1
Rated apparent power
more... less
Number of socket outlets
Max. output power
Secondary voltage 2
Secondary amperage 1
Max. power loss
Secondary voltage 3
Secondary amperage 2
Secondary amperage 3
Utilization category
Number of users
Max. data transmission rate
Max. switching power LED
Supporting protocol for ASI
Supporting protocol for AS-Interface Safety at Work
Supporting protocol for PROFIsafe
Radio protocol
Max. transmission rate, reading
Max. transmission rate, writing
Max. PoE power
Max. lamp power
Colour calotte
Lamp socket
Control voltage 1
Control voltage 2
Frequency control voltage 1
Frequency control voltage 2
Max. switching current (cos phi = 0.6)
Max. incandescent lamp load
Max. load fluorescent lamp
Max. load fluorescent lamp (Duo circuit)
Max. load fluorescent lamp (parallel compensated)
Construction size
Voltage protection level L-N
Voltage protection level N-PE
Short-circuit breaking capacity (Isccr)
Switching current
With signal lamp
Push button glow-lamp current
Version as maintenance-/service switch
Rated operation power at AC-23, 400 V
more... less
Rated permanent current at AC-21, 400 V
more... less
Switching power at 400 V
Rated permanent current at AC-23, 400 V
more... less
Type of covering
Number of modular spacings per DIN-rail
Number of DIN-rails
Version as glazed door
With cover
Number of auxiliary contacts as normally open contact
Rated operation current Ie, 400 V
Number of auxiliary contacts as normally closed contact
Rated operation power at AC-3, 400 V
more... less
Number of normally open contacts as main contact
Rated operation current Ie at AC-3, 400 V
more... less
Rated operation current Ie at AC-1, 400 V
more... less
Rated operation current Ie at AC-4, 400 V
more... less
Rated operation power at AC-4, 400 V
more... less
Rated operation power NEMA
more... less
Number of normally closed contacts as main contact
Overload release current setting
more... less
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz
Adjustment range undelayed short-circuit release
more... less
With thermal overload protection
Switch off technique
Rated short-circuit breaking capacity lcu at 400 V, AC
Phase failure sensitive
Conditioned rated short-circuit current Iq
Rated surge voltage
Release class
Adjustable current range
more... less
Setting time
Diameter openings
Number of command positions
Suitable for front mounting 4-hole
Type of fuse status indicator
Version as safety switch
Interlockable
Number of auxiliary contacts as change-over contact
Adjustment range short-term delayed short-circuit release
more... less
Cross section height
Cross section width
Number of indicator lights
Type of motor starter
Rated operation power at AC-3, 230 V, 3-phase
more... less
Rated operation current at AC-3, 400 V
more... less
Ambient temperature, upper operating limit
Temperature compensated overload protection
Number of displays
Number of status indications
Line capacity
Response value impedance 1
Voltage measuring range
Min. adjustable delay-on energization time
Max. permitted off-delay time
Min. adjustable off-delay time
Voltage measuring range 1
Response value voltage
Number of inputs for electrodes
Max. permitted operate delay time
Rated operation current
Rated excitation voltage
Number of switch positions
Centre mounting, hole diameter
Joy stick length
Suitable for number of built-in signal lights
Built-in diameter
Number of push buttons
Rated operating voltage Ue
Rated blind power at 400 V, 50 Hz
Rated conditional short-circuit current, type 2, 400 V
Rated conditional short-circuit current, type 2, 230 V
With short-circuit release
Rated operation current Ie at 40 °C Tu
more... less
Rated power three-phase motor, inline, at 230 V
more... less
Rated power three-phase motor, inline, at 400 V
more... less
Rated surrounding temperature without derating
Suitable for cable diameter
Version as emergency stop installation
Power loss at rated current
more... less
Max. overcurrent protection device, parallel connection (fuse)
Max. overcurrent protection device, series connection (fuse)
Secondary voltage 2
Width opening
Contains control unit
Contains documentation
Contains basic device
Contains programming software
Contains connection cable
Number of system buttons
Adjustable setting value for Cos-Phi
Number of doors
Number of locks
Suitable for wall mounting
Addressable
Number of CEE socket outlets
NVP value
Number of fibres
Number of ports 100 Mbps SC
Number of ports 10/100/1000 Mbps RJ45
Number of other ports
Number of poles connection 1
Number of poles connection 2
Nominal cross section conductor
Material core insulation
Core identification
Material outer sheath
Outer diameter approx.
more... less
Temperature resistance
Reaction-to-fire according to EN 13501-6: Class
Reaction-to-fire according to EN 13501-6: Smoke production
Reaction-to-fire according to EN 13501-6: Flaming droplets/particles
Reaction-to-fire according to EN 13501-6: Acidity
Colour code
Min. permitted bending radius, stationary application/permanent installation
more... less
Specification material outer sheath
Min. adjustable operate delay time
Number of HW-interfaces wireless
Suitable for floor mounting
Number of openings for flange plates
Max. rated current
Rated operation power at AC-3, 230 V
more... less
Autonomy
Rated voltage light sensor
Max. conductor length light sensor
Adjustment range brightness value
Number of contacts
Rated power three-phase motor, inside delta, at 230 V
more... less
Rated power three-phase motor, inside delta, at 400 V
more... less
Max. main memory
Number of free PCI-slots
Memory capacity
Number of outputs, signalling function, delayed, semiconductors
Drill hole distance centrically
Contains engineering software
Contains power supply
Number of HW-interfaces parallel
Number of ports 10/100 Mbps LAN
Frequency band
Rated inductance
more... less
Rated voltage AC
more... less
Number of HW-interfaces serial TTY
Processor clock rate
Number of storage media bays
Number of other free slots
Rated power, 460 V, 60 Hz, 3-phase
Number of outputs, with contact
Rated conditional short-circuit current, type 1, 480 Y/277 V
Rated conditional short-circuit current, type 1, 600 Y/347 V
Coordination class according to IEC 60947-4-3
Busbar distance
Max. busbar thickness
Width of the adapter
more... less
Min. busbar thickness
Pole fastening
Max. permissible load of the enclosure according to IEC 62208
Max. permissible load of the door(s) according to IEC 62208
Max. permissible load of the mounting plate according to IEC 62208
Resistance
Type of connection
Nominal power consumption
Rated voltage AC 50 Hz
Max. fall height according to IEC 60068-2-32
Diameter conductor
more... less
Min. permitted bending radius, moving application with forced guidance
more... less
Min. permitted bending radius, moving application/free movement
more... less
Number of connectable valves
Valve switching time from 0 to 1
Valve switching time from 1 to 0
Number of stranding elements
Suitable for web-clients
Loadable for operating system for configuration software, Windows 8
Energy cable
Data and communication cable
Number of ports 100 Mbps ST
Number of ports 10/100/1000 Mbps LAN
Category according to EN 954-1
Number of indicator lamps
Number of LED colour modes
Stranding element
Screen over stranding element
Screen over stranding
Protective sheath
Stranding
Indoor
Outdoor
Programme diameter
Housing according to norm
Number of normally open contacts per actuation direction
Number of mushroom-shaped push-buttons
Rated operation power at DC-3 / DC-5 at 440 V
Number of auxiliary contacts as normally open contact, leading
Number of outputs, signalling function, delayed, with contact
Primary voltage 2
Primary voltage 3
Relative short circuit voltage
more... less
Primary voltage 10
Primary voltage 4
Primary voltage 5
Primary voltage 6
Primary voltage 7
Primary voltage 8
Primary voltage 9
Measuring range vibration acceleration (gravity g)
Sensitivity vibration acceleration sensor (mV/gravity g)
Number of sensor inputs for IEPE sensors
Number of rotational speed inputs
Measuring range vibration frequency
Electricity consumption
Permitted cable diameter
Number of potentials
Rated short-circuit breaking capacity according to EN 60898
Suitable for flush-mounted installation
Built as energy saving transformer
Number of free PCIe-slots
Max. image capture frequency
Rated voltage DC
Number of display lines
Number of display characters per line
Max. door/gate weight
Nominal operating current
Gear ratio
Max. speed
Max. door/gate width
Input voltage per DC input
Input current per DC input
Max. opening cycles per hour
Supply voltage AC
Supply voltage DC
Number of key switches
Response value impedance 2
Rated current AC 50 Hz
Number of detector addresses
Number of colours
Filter
6SL3230-3YE32-1AB0 - Siemens - G120X IP20 380...480V 22kW FSD 滤波器 C2
NFS

6SL3230-3YE32-1AB0 - Siemens - G120X IP20 380...480V 22kW FSD 滤波器 C2

SINAMICS G120X 额定功率：22 kW 110% 60s, 100% 240s C2 类无线电干扰抑制滤波器 380-480 V 3 AC +10/-20% 47-63 Hz 环境温度 -20 至 +45 °C 尺寸：FSD 防护等级 IP20 / UL 开放式喷漆 3C3 带智能操作面板，带 IO 扩展 现场总线集成：MODBUS RTU、BACnet MS/TP、USS
比较
USD2,451.68 价格
缺货 - 延期交货
6SL3230-3YE34-1AB0 - Siemens - G120X IP20 380...480V 30kW FSD 滤波器 C2
NFS

6SL3230-3YE34-1AB0 - Siemens - G120X IP20 380...480V 30kW FSD 滤波器 C2

SINAMICS G120X 额定功率：30 kW 110% 60s, 100% 240s C2 类无线电干扰抑制滤波器 380-480 V 3 AC +10/-20% 47-63 Hz 环境温度 -20 至 +45 °C 尺寸：FSD 防护等级 IP20 / UL 开放式喷漆 3C3 带智能操作面板，带 IO 扩展 现场总线集成：MODBUS RTU、BACnet MS/TP、USS
比较
USD2,953.68 价格
缺货 - 延期交货
6SL3230-3YE36-1AB0 - Siemens - G120X IP20 380...480V 37kW FSD 滤波器 C2
NFS

6SL3230-3YE36-1AB0 - Siemens - G120X IP20 380...480V 37kW FSD 滤波器 C2

SINAMICS G120X 额定功率：37 kW 110% 60s, 100% 240s C2 类无线电干扰抑制滤波器 380-480 V 3 AC +10/-20% 47-63 Hz 环境温度 -20 至 +45 °C 尺寸：FSD 防护等级 IP20 / UL 开放式喷漆 3C3 带智能操作面板，带 IO 扩展 现场总线集成：MODBUS RTU、BACnet MS/TP、USS
比较
USD3,467.69 价格
缺货 - 延期交货
6SL3230-3YE38-0AB0 - Siemens - G120X IP20 380...480V 45kW FSE 滤波器 C2
NFS

6SL3230-3YE38-0AB0 - Siemens - G120X IP20 380...480V 45kW FSE 滤波器 C2

SINAMICS G120X 额定功率：45 kW 110% 60s, 100% 240s C2 类无线电干扰抑制滤波器 380-480 V 3 AC +10/-20% 47-63 Hz 环境温度 -20 至 +45 °C 尺寸：FSE 防护等级 IP20 / UL 开放式 油漆表面 3C3 带智能操作面板 无 IO 扩展 现场总线 集成：SINAMICS G120X 额定功率：45 kW 110% 60s, 100% 240 sFSE 防护等级 IP20 / UL 开放式喷漆 3C3 带智能操作面板 无 IO 扩展 现场总线集成：MODBUS RTU、BACnet MS/TP、USS
比较
USD3,929.63 价格
缺货 - 延期交货
6SL3230-3YE38-0AP0 - Siemens - G120X IP20 380...480V 45kW FSE 滤波器 C2
NFS

6SL3230-3YE38-0AP0 - Siemens - G120X IP20 380...480V 45kW FSE 滤波器 C2

SINAMICS G120X 额定功率：45 kW 110% 60s, 100% 240s C2 类无线电干扰抑制滤波器 380-480 V 3 AC +10/-20% 47-63 Hz 环境温度 -20 至 +45 °C 尺寸：FSE 防护等级 IP20 / UL 开放式 油漆表面 3C3 带智能操作面板 无 IO 扩展 现场总线 集成：SINAMICS G120X 额定功率：45 kW 110% 60s, 100% 240 s带智能操作面板 无 IO 扩展 现场总线集成：PROFIBUS DP
比较
USD4,007.51 价格
缺货 - 延期交货
6SL3230-3YE38-1AB0 - Siemens - G120X IP20 380...480V 45kW FSE 滤波器 C2
NFS

6SL3230-3YE38-1AB0 - Siemens - G120X IP20 380...480V 45kW FSE 滤波器 C2

SINAMICS G120X 额定功率：45 kW 110% 60s, 100% 240s C2 类无线电干扰抑制滤波器 380-480 V 3 AC +10/-20% 47-63 Hz 环境温度 -20 至 +45 °C 尺寸：FSE 防护等级 IP20 / UL 开放式喷漆 3C3 带智能操作面板，带 IO 扩展 现场总线集成：MODBUS RTU、BACnet MS/TP、USS
比较
USD3,995.94 价格
缺货 - 延期交货
6SL3230-3YE40-0AB0 - Siemens - SINAMICS G120X IP20 380 至 480V 55kW FSE 滤波器 C2
NFS

6SL3230-3YE40-0AB0 - Siemens - SINAMICS G120X IP20 380 至 480V 55kW FSE 滤波器 C2

SINAMICS G120X 额定功率：55 kW 110% 60s 时，100% 240s 时 C2 类无线电干扰抑制滤波器 380-480 V 3 AC +10/-20% 47-63 Hz 环境温度 -20 至 +45 °C 尺寸：FSE 防护等级 IP20 / UL 开放式 油漆表面 3C3 带智能操作面板 无 IO 扩展 现场总线 集成：SINAMICS G120XFSE 防护等级 IP20 / UL 开放式喷漆 3C3 带智能操作面板 无 IO 扩展 现场总线集成：MODBUS RTU、BACnet MS/TP、USS
比较
USD4,690.63 价格
缺货 - 延期交货
6SL3230-3YE40-0AP0 - Siemens - SINAMICS G120X IP20 380 至 480V 55kW FSE 滤波器 C2
NFS

6SL3230-3YE40-0AP0 - Siemens - SINAMICS G120X IP20 380 至 480V 55kW FSE 滤波器 C2

SINAMICS G120X 额定功率：55 kW 110% 60s 时，100% 240s 时 C2 类无线电干扰抑制滤波器 380-480 V 3 AC +10/-20% 47-63 Hz 环境温度 -20 至 +45 °C 尺寸：FSE 防护等级 IP20 / UL 开放式 油漆表面 3C3 带智能操作面板 无 IO 扩展 现场总线 集成：SINAMICS G120X带智能操作面板 无 IO 扩展 现场总线集成：PROFIBUS DP
比较
USD4,768.51 价格
缺货 - 延期交货