adamczewski elektronische messtechnik-power and energy measurement 電力和能量測量 標(biāo)準(zhǔn)化接口 模擬標(biāo)準(zhǔn)信號輸出 切換和脈沖輸出 功率和能量顯示器 監(jiān)測功能

測量和評估來自交流供電網(wǎng)絡(luò)的所有相關(guān)測量值,包括有功、無功和視在功率、電流、電壓、功率因數(shù)、相角、諧波等,以及能量計數(shù)。

標(biāo)準(zhǔn)化接口

AD-LU 20 GT

產(chǎn)品介紹

數(shù)字功率和能量表AD-LU 20 GT測量三相系統(tǒng)的所有標(biāo)準(zhǔn)值(有功、無功、視在功率、電壓、電流、諧波、功率因數(shù)等),并通過以太網(wǎng)接口提供這些值。通過Modbus-TCP協(xié)議可以讀取測量值。此外,這些測量值還顯示在集成的小型WEB服務(wù)器上。通過此WEB服務(wù)器也可以對設(shè)備進行參數(shù)化。AD-LU 20 GT還配備有RS485接口。該RS485接口采用Modbus-RTU協(xié)議,主要適用于連接外部顯示器(AD-MM 400),但也可用于讀取數(shù)據(jù)或參數(shù)設(shè)置。電流通過前置的直接電流轉(zhuǎn)換器供給,可直接測量高達(dá)20A的電流。然而,也可以隨時連接用于更大電流的額外電流互感器??梢詼y量對稱或非對稱的4線網(wǎng)絡(luò)和對稱負(fù)載的3線網(wǎng)絡(luò)。由于集成的高效寬電壓范圍電源,該設(shè)備在大范圍供電電壓下運行,并且不會產(chǎn)生過多的熱量。

產(chǎn)品參數(shù)

Current-inputs (I1…I3)
Measuring ranges0 … 1 A AC; 0 … 5 A AC;
0 … 20 A AC
Max. conductor diameter4,8 mm
Voltage-inputs (L1…L3)
Measuring range50 … 253 V AC
Input resistanceCa. 950 kOhm
Ethernet-interface
Software protocolModbus-TCP
Standard-IP192.168.178.99
Network mask255.255.255.0
WEB-ServerPort 80
RS485-Bus
Software protocolModbus-RTU
Data format19200, e, 8, 1
Max. bus users99
Bus termination120 ohms both sides at the end
Max. length of bus500 m (no stubs)
CableTwisted and shielded
Supply
Voltage range AC50 … 253 V AC, 50/60 Hz (see voltage-inputs)
Nominal voltage AC230 V AC
Power consumptionMax. 2,5 VA
Transfer behavior – in reference to the current value
Basic accuracy< 0,5 % (class 0.5)
Temperature influence80 ppm/K
Response time< 0,5 s
Housing
Dimensions (WxHxD)71x90x70 mm
Type of protectionIP 20
Connection methodScrew clamp
Terminals, wire cross section2,5 mm2 flex wire / 4 mm2 one wire
Bolting torque terminals0,6 Nm
Skinning length6 mm
Weight~ 180 g
Manner of fastening35 mm DIN rail 35mm
Environmental conditions
Ambient temperature-10 … 50 °C
Storage and transport-10 … 70 °C (no condensation)
EMC
Product family standardEN 61326-1?1)
Emitted interferenceEN 55011, CISPR11 Cl. B, Gr. 1
Electrical safety requirements
Product family standardEN 61010-1
Overvoltage categoryII
Pollution degree2
Safety measurementEN 61010-2-030
Measurement categoryCAT III
Galvanic isolation, test voltages
Grid side to RS485-Bus4 kV, 50 Hz (1 min.)
Grid side to control elements4 kV, 50 Hz (1 min.)
Protection circuits
InputElectrical surge protection
RS485-BusElectrical surge protection
Power supplyProtection against over-temperature, over-voltage and over-current

 

AD-LU 70 FE

產(chǎn)品介紹

數(shù)字電力轉(zhuǎn)換器AD-LU 70 FE測量三相電網(wǎng)的所有值,如電流、電壓、能量、有功、無功、視在功率和頻率,并通過現(xiàn)場總線提供這些數(shù)據(jù)。因此,該設(shè)備非常適用于集成到能源管理系統(tǒng)中。AD-LU 70 FE由其測量電壓L1供電。電流測量通過安裝在背面的穿過孔的電流互感器進行。對于更高電壓或電流的測量,必須使用外部變壓器。

產(chǎn)品參數(shù)

Current inputs
Measuring ranges0 … 1/5/20 A AC
Maximum wire diameter4,8 mm2
Voltage inputs/supply
Nominal voltage230 V AC
Rated frequency50 Hz
Frequency range40 … 100 Hz
Measuring range80 … 253 V AC
Max. power consumption L14 VA
Input resistance L2, L3970 kOhm
Optocoupler outputs
Maximum switching voltage30 V DC
Maximum switching current50 mA DC
PROFINET
Ethernet2 Port Switch
Protocol specificationPROFINET IO
Default IP-address0.0.0.0
PROFIBUS
Bus termination120 ohms both sides at the end
Max. length of bus500 m (no stubs)
CableTwisted and shielded
Display
TypeTFT
Resolution320×240 Pixel
Accuracy
Class0,5
Temperature influence100 ppm/K
Housing
Dimensions (WxHxD)96x96x123 mm
Front panel cut out (bxh)92×92 mm
Protection Front/CaseIP54/IP20
Connection methodPluggable screw terminal
Terminals, wire cross section2,5 mm2 flex wire / 4 mm2 one wire
Weight250 g
Manner of fasteningPanel-mounting
Environmental conditions
Ambient temperature-10 … 50 °C
Storage and transport-10 … 70 °C (no condensation)
EMC
Product family standardEN 61326-1?1)
Emitted interferenceEN 55011, CISPR11 Cl. A, Gr. 1
Electrical safety requirements
Product family standardEN 61010-1
Overvoltage categoryII
Pollution degree2
Safety measurementEN 61010-2-030
Measurement categoryCAT III
Galvanic isolation, test voltages
Grid – PROFINET/PROFIBUS4 kV, 50 Hz (1 min.)
Grid – Digital outputs4 kV, 50 Hz (1 min.)

模擬標(biāo)準(zhǔn)信號輸出

AD-LU 10 GT

產(chǎn)品介紹

數(shù)字電力測量變送器AD-LU 10 GT測量電力網(wǎng)絡(luò)的所有量(電流、電壓、能量、諧波、相角、有功功率、無功功率、視在功率等),并將這些測量值轉(zhuǎn)換為一個可自由調(diào)節(jié)的模擬輸出(20 mA)。此外,該設(shè)備還具有用于S0脈沖或報告限值的晶體管輸出。因此,該單元非常適用于集成到能源管理系統(tǒng)中。可以測量單相或平衡的3線或4線系統(tǒng)。AD-LU 10 GT通過其測量電壓L1供電。電流測量通過安裝在前面的條形變壓器進行。對于高電壓或大電流的測量,可以隨時連接外部變壓器。AD-LU 10 GT可以通過集成接口使用AD-Studio進行讀取和參數(shù)化。前面的LED指示運行狀態(tài)。緊湊的構(gòu)造類型和高性能與同時低能耗的特點使其在幾乎任何應(yīng)用中都可以使用。

產(chǎn)品參數(shù)

Input current
Measuring ranges0 … 1 A AC; 0 … 5 A AC;
0 … 20 A AC
Max. conductor diameter4,8 mm
Max. measurable harmonic40
Input voltage
Measuring range80 … 253 V AC
Input resistance> 900 kOhm
Output current
Output range0/4 … 20 mA
Max. load400 Ohm
Resolution11 Bit
Residual ripple25 μAss
Transistor output
Max. switching load30 V DC, 20 mA
Pulse length min … max50 ms … 10000 ms
Supply
Voltage range AC80 … 253 V AC, 50/60 Hz (see voltage-inputs)
Nominal voltage AC230 V AC
Power consumptionMax. 4 VA
Transfer behavior – in reference to the current value
Basic accuracy< 0,5 % (class 0.5)
Temperature influence80 ppm/K
Response time< 0,5 s
Housing
Dimensions (WxHxD)35,5x90x70 mm
Type of protectionIP 20
Connection methodScrew clamp
Terminals, wire cross section2,5 mm2 flex wire / 4 mm2 one wire
Bolting torque terminals0,6 Nm
Skinning length6 mm
Weight~ 150 g
Manner of fastening35 mm DIN rail 35mm
Environmental conditions
Ambient temperature-10 … 50 °C
Storage and transport-10 … 70 °C (no condensation)
EMC
Product family standardEN 61326-1?1)
Emitted interferenceEN 55011, CISPR11 Cl. A, Gr. 1
Electrical safety requirements
Product family standardEN 61010-1
Overvoltage categoryII
Pollution degree2
Safety measurementEN 61010-2-030
Measurement categoryCAT II
Galvanic isolation, test voltages
Grid side to analoge output4 kV, 50 Hz (1 min.)
Power Supply to Transistor Output4 kV, 50 Hz (1 min.)
Protection circuits
InputElectrical surge protection
Power supplyProtection against over-temperature, over-voltage and over-current
Analogue outputElectrical surge protection

 

AD-LU 650 GT

產(chǎn)品介紹

AD-LU 650 GT是用于采集三相電網(wǎng)中所有測量變量的數(shù)字測量變送器。除了基本振蕩外,還可以測量電流和電壓的諧波,直至第32次諧波。除了三相電流外,還可以測量中性導(dǎo)體中的電流。每個模擬輸出可以分配給任何測量變量。每個數(shù)字輸出可以分配其自己的功能,例如限值監(jiān)測或用于能量計的脈沖輸出。通過Modbus-RTU接口可以讀取所有測量數(shù)據(jù)。通過可選的顯示設(shè)備,如AD-MM 400 FE或AD-MM 500 FE,可以顯示數(shù)據(jù)并在需要時配置設(shè)備。

產(chǎn)品參數(shù)

Voltage inputs L1, L2, L3 against N
Nominal voltage230 V AC
Maximum voltage300 V AC
Rated frequency32…50…100 Hz
Input resistance1 MOhm
Peak load600 V AC, 1s
Current inputs
Number4 (L1, L2, L3 und N)
Rated current range0 … 20 A AC
Current measurementIntegrated toroidal current transformer
Analog outputs
Number4
TypeCurrent or voltage, software configurable
D/A conversionPWM
Current outputs
Maximum output range-21 … 21 mA
Max. burden400 Ohm
Max. residual ripple~10 μA eff
Resolution~10 μA
Voltage outputs
Maximum output range-10,5 … 10,5 V
Min. burden10 kOhm
Max. residual ripple~5 mV eff
Resolution~5 mV
Digital outputs
Number3
TypeOptisch, MOS-Relais
Maximum switching voltage60 V AC/DC
Maximum switching current550 mA AC/DC
Accuracy
Accuracy class0,5%
Temperature influence< 200 ppm/K
Frequency influence~0,2 %, 40 … 60 Hz
Influence of phase angle~0,2 %, 40 … 60 Hz
Response time~500 ms, 10 … 90 %
Current resolution1 mA eff
Voltage resolution10 mV eff
Communication interface
PhysicalRS-485
Parameter19200, 8, 1 , even
ProtocolModbus RTU
Supply
DC21 … 253 V DC, 3,5 W
AC50 … 253 V AC, 6 VA
Housing
Type of protectionIP 20
Connection methodScrew clamp
Cross section fine wire2,5 mm2
Cross section one wire4 mm2
MountingDIN rail mounting
Weight~400 g
Environmental conditions
Operating temperature-10 … 50 °C
Storage, transport-25 … 80 °C
Electromagnetic compatibility
Product family standardEN 61326-1
EmissionEN 55011, CISPR11 Cl. B, Gr. 1
During an interference effect slight signal deviations are possible.
Electrical safety requirements
Product family standardEN 60688
Overvoltage categoryIII
Pollution degree2
Isolation-voltage500 V AC
Test voltage input/output5 kV RMS, 1 Min.
Test voltage output/supply4 kV RMS, 1 Min.
Test voltage input/supply5 kV RMS, 1 Min.

切換和脈沖輸出

AD-LU 60 FE

產(chǎn)品介紹

AD-LU 60 FE是一款前面板安裝的測量和指示設(shè)備。它涵蓋了帶有中性導(dǎo)體的三相電網(wǎng)中的所有測量值。電流測量是通過設(shè)備上的套管式電流互感器進行的。測量值顯示在彩色的圖形TFT顯示器上,并分配給不同的指示器。可以手動翻閱或通過時間控制的自動方式進行。有一個基本變體作為純指示設(shè)備,以及帶有Modbus接口和用于計數(shù)或限值的數(shù)字輸出的變體。設(shè)備參數(shù)設(shè)置可以通過設(shè)備本身的菜單或可選的RS-485接口進行。

產(chǎn)品參數(shù)

Current inputs
Measuring ranges0 … 1/5/20 A AC
Maximum wire diameter4,8 mm2
Voltage inputs/supply
Nominal voltage230 V AC
Rated frequency50 Hz
Frequency range40 … 100 Hz
Measuring range80 … 253 V AC
Max. power consumption4 VA
RS485 interface (-B, -DB)
Software protocolModbus-RTU
Data format19200, e, 8, 1
Max. bus users32
Max. length of bus500 m (no stubs)
CableTwisted and shielded
Optocoupler outputs (-D, -DB)
Max switching voltage, switching current30 V DC, 50 mA DC
Display
TypeTFT
Resolution320×240 Pixel
Accuracy
Class0,5
Temperature influence100 ppm/K
Housing
Dimensions (WxHxD)96x96x64 mm
Front panel cut out (bxh)92×92 mm
Dimensions frontIP 54
Type of protection housingIP 20
Connection methodScrew clamp
Terminals, wire cross section2,5 mm2 flex wire / 4 mm2 one wire
Weight250 g
Manner of fasteningPanel-mounting
Environmental conditions
Ambient temperature-10 … 50 °C
Storage and transport-10 … 70 °C (no condensation)
EMC
Product family standardEN 61326-1?1)
Emitted interferenceEN 55011, CISPR11 Cl. B, Gr. 1
Electrical safety requirements
Product family standardEN 61010-1
Overvoltage categoryII
Pollution degree2
Safety measurementEN 61010-2-030
Measurement categoryCAT III
Galvanic isolation, test voltages
Grid side to RS485-Bus4 kV, 50 Hz (1 min.)
Grid side to control elements4 kV, 50 Hz (1 min.)
Protection circuits
Voltage inputsPTC resistor
RS485-BusElectrical surge protection
Optocoupler outputsElectrical surge protection

 

AD-LU 655 GT

產(chǎn)品介紹

AD-LU 655 GT是一款數(shù)字測量變送器,用于獲取三相電網(wǎng)中的所有測量變量。電流通過外部折疊式電流互感器進行檢測。除了基本振蕩外,該設(shè)備還可以測量電流和電壓的諧波,直至第32次諧波。除了三相電流外,還可以測量中性導(dǎo)體中的電流。任何測量變量都可以分配給每個模擬輸出。每個數(shù)字輸出都可以分配其獨特的功能,例如限值監(jiān)測或用于能量計的脈沖輸出。通過Modbus-RTU接口可以讀取所有測量數(shù)據(jù)。通過可選的顯示設(shè)備,如AD-MM 400 FE或AD-MM 500 FE,可以顯示數(shù)據(jù)并在需要時配置設(shè)備。

產(chǎn)品參數(shù)

Voltage inputs L1, L2, L3 against N
Nominal voltage230 V AC
Maximum voltage300 V AC
Input resistance1 MOhm
Peak load600 V AC, 1s
Current inputs
Number4 (L1, L2, L3 und N)
Rated current range0 … 33,3 mA AC
Current measurementExterne Klappstromwandler
Input resistance~10 Ohm
Analog outputs
Number4
TypeCurrent or voltage, software configurable
Current outputs
Maximum output range-21 … 21 mA
Max. burden400 Ohm
Max. residual ripple40 μAss
Voltage outputs
Maximum output range-10,5 … 10,5 V
Min. burden10 kOhm
Max. residual ripple20 mVss
Digital outputs
Number3
TypeOptisch, MOS-Relais
Maximum switching voltage60 V AC/DC
Maximum switching current550 mA AC/DC
Accuracy
Accuracy class0,5%
Temperature influence< 200 ppm/K
Frequency influence~0,2 %, 40 … 60 Hz
Influence of phase angle~0,2 %, 40 … 60 Hz
Response time~500 ms, 10 … 90 %
Communication interface
PhysicalRS-485
Parameter19200, 8, 1 , even
ProtocolModbus RTU
Supply
DC21 … 253 V DC, 3,5 W
AC50 … 253 V AC, 6 VA
Housing
Type of protectionIP 20
Connection methodScrew clamp
Cross section fine wire2,5 mm2
Cross section one wire4 mm2
MountingDIN rail mounting
Weight~400 g
Environmental conditions
Operating temperature-10 … 50 °C
Storage, transport-25 … 80 °C
Electromagnetic compatibility
Product family standardEN 61326-1
EmissionEN 55011, CISPR11 Cl. B, Gr. 1
During an interference effect slight signal deviations are possible.
Electrical safety requirements
Product family standardEN 60688
Overvoltage categoryIII
Pollution degree2
Isolation-voltage500 V AC
Test voltage input/output5 kV RMS, 1 Min.
Test voltage output/supply4 kV RMS, 1 Min.
Test voltage input/supply5 kV RMS, 1 Min.

功率和能量顯示器

AD-LU 70 FE

產(chǎn)品介紹

數(shù)字電力轉(zhuǎn)換器AD-LU 70 FE測量三相電網(wǎng)的所有值,如電流、電壓、能量、有功、無功、視在功率和頻率,并通過現(xiàn)場總線提供這些數(shù)據(jù)。因此,該設(shè)備非常適用于集成到能源管理系統(tǒng)中。AD-LU 70 FE由其測量電壓L1供電。電流測量通過安裝在背面的穿過孔的電流互感器進行。對于更高電壓或電流的測量,必須使用外部變壓器。

產(chǎn)品參數(shù)

Current inputs
Measuring ranges0 … 1/5/20 A AC
Maximum wire diameter4,8 mm2
Voltage inputs/supply
Nominal voltage230 V AC
Rated frequency50 Hz
Frequency range40 … 100 Hz
Measuring range80 … 253 V AC
Max. power consumption L14 VA
Input resistance L2, L3970 kOhm
Optocoupler outputs
Maximum switching voltage30 V DC
Maximum switching current50 mA DC
PROFINET
Ethernet2 Port Switch
Protocol specificationPROFINET IO
Default IP-address0.0.0.0
PROFIBUS
Bus termination120 ohms both sides at the end
Max. length of bus500 m (no stubs)
CableTwisted and shielded
Display
TypeTFT
Resolution320×240 Pixel
Accuracy
Class0,5
Temperature influence100 ppm/K
Housing
Dimensions (WxHxD)96x96x123 mm
Front panel cut out (bxh)92×92 mm
Protection Front/CaseIP54/IP20
Connection methodPluggable screw terminal
Terminals, wire cross section2,5 mm2 flex wire / 4 mm2 one wire
Weight250 g
Manner of fasteningPanel-mounting
Environmental conditions
Ambient temperature-10 … 50 °C
Storage and transport-10 … 70 °C (no condensation)
EMC
Product family standardEN 61326-1?1)
Emitted interferenceEN 55011, CISPR11 Cl. A, Gr. 1
Electrical safety requirements
Product family standardEN 61010-1
Overvoltage categoryII
Pollution degree2
Safety measurementEN 61010-2-030
Measurement categoryCAT III
Galvanic isolation, test voltages
Grid – PROFINET/PROFIBUS4 kV, 50 Hz (1 min.)
Grid – Digital outputs4 kV, 50 Hz (1 min.)

監(jiān)測功能

AD-UW 60 GT

產(chǎn)品介紹

三相電壓監(jiān)測器AD-UW 60 GT監(jiān)測三相系統(tǒng)中的所有三相電壓,用于過壓、欠壓、相序和相稱。如果發(fā)生一個或多個故障,靜態(tài)電流繼電器將失效。通過LED指示器顯示三相的狀態(tài)和錯誤狀態(tài)。該設(shè)備由測量電壓供電,因此不需要單獨供電線路。過壓、欠壓和切換延遲的觸發(fā)點可以通過單獨的微調(diào)器快速設(shè)置。

產(chǎn)品參數(shù)

Voltage inputs/supply
Nominal voltage230 V AC, 50 Hz
Connection method3 phases + neutral conductor
Auxiliary voltageAll three phases
Measurement and supply range150 … 253 V AC
Max. power consumption4 VA
Setting ranges
Undervoltage170 … 229 V AC
Overvoltage231 … 250 V AC
Delay0,1 … 10 s
Response values
Asymmetry10 % of nominal voltage
Hysteresis10 % overvoltage – undervoltage
Phase loss~ 10 % der Nennspannung
Timing
Start delay1 s
Sampling period50 ms
Notifications
L1, L2, L3 (green)On: Voltage OK
Blinking: Error, Delay is running
Off: Error
Relais (orange)On: Relay tightened, everything OK
Blinking: Relay dropped, error
Relay output
Maximum switching load AC250 V, 2 A
Maximum switching load DC50 V, 2 A
Contact constructionPotential-free changeover
Galvanic isolation, test voltages
Mains side to relay output4 kV, 50 Hz (1 min.)
Housing
Terminals, wire cross section2,5 mm2 flex wire / 4 mm2 one wire
Type of protectionIP 20
Connection methodScrew clamp
Bolting torque terminals0,6 Nm
Weight~ 150 g
Manner of fastening35 mm DIN rail 35mm
Environmental conditions
Ambient temperature-10 … 50 °C
Storage and transport-10 … 70 °C (no condensation)
Electrical safety requirements
Product family standardEN 61010-1
Overvoltage categoryIII
Pollution degree2
Safety measurementEN 61010-2-030
Measurement categoryCAT III
EMC
Product family standardEN 61326-1?1)
Emitted interferenceEN 55011, CISPR11 Cl. A?2), Gr. 1

 

AD-LW 110 GS

產(chǎn)品介紹

AD-LW 110 GS監(jiān)測感性負(fù)載的負(fù)載狀況。其主要應(yīng)用是在1相或3相網(wǎng)絡(luò)中負(fù)載發(fā)生較大變化的異步電動機。該設(shè)備對功率因數(shù)值和欠壓進行評估。超過設(shè)定的限值將觸發(fā)一個觸點。通過LED在前面板上指示開關(guān)狀態(tài)。功率因數(shù)的測量原理基于對一個相位中電壓和電流之間的相位移的評估。因此,實際測量的變量是電壓和電流之間的相位角。功率因數(shù)或相位角的設(shè)定值僅對正弦量正確。相移幾乎與負(fù)載相反。因此,cos-phi值為0(= 90°)對應(yīng)于低負(fù)載,而cos-phi值為1(= 0°)對應(yīng)于大負(fù)載??梢詫⑼獠侩娏骰ジ衅鬟B接到設(shè)備的電流輸入。由于集成的高效開關(guān)電源,該設(shè)備可以在廣泛的供電電壓范圍內(nèi)運行。

產(chǎn)品參數(shù)

Current input (L1)
Measuring range0 … 1/5 A AC (alternatively)
Permanent overload50 %
Short-term overload 3 s100 %
Voltage input (L1, L2, L3)
Measuring range180 … 253 V
Input resistance1 MOhm
Relay outputs
Maximum switching load AC230 V, 1 A
Maximum switching load DC50 V, 1 A
Contact constructionClosing contact
Switching operations mechanical10000000
At 230V/1 A AC, cos(phi)=1600000
At 230V/1 A AC, cos(phi)=0,4200000
At 24V/1 A DC200000
Switching hysteresis3 % of the measuring range
Supply
Voltage range AC50 … 253 V AC, 50/60 Hz
Nominal voltage AC230 V AC
Voltage range DC20 … 253 V DC
Nominal voltage DC24 V DC
Power consumption AC / DC4 VA / 2,5 W
Transmission behaviour
Basic accuracy< 2 %
Temperature influence100 ppm/K
Response time~ 50 ms
Housing
Dimensions (WxHxD)23x78x103 mm
Type of protectionIP 20
Connection methodDetachable terminal clamp
Terminals, wire cross section2,5 mm2 flex wire / 4 mm2 one wire
Bolting torque terminals0,5 Nm
Weight~ 120 g
Manner of fastening35 mm DIN rail 35mm
Environmental conditions
Ambient temperature-10 … 50 °C
Storage and transport-10 … 70 °C (no condensation)
EMC
Product family standardEN 61326-1?1)
Emitted interferenceEN 55011, CISPR11 Cl. B, Gr. 1
Electrical safety requirements
Product family standardEN 61010-1
Overvoltage categoryII
Pollution degree2
Galvanic isolation, test voltages
Input / relay output4 kV, 50 Hz (1 min.)
Power supply / relay output4 kV, 50 Hz (1 min.)
Relay 1 / relay 22 kV, 50 Hz (1 min.)
Protection circuits
InputElectrical surge protection
Power supplyElectrical surge protection

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