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ACA-20RM Series
True-RMS-AC Ammeters with Built-in CT
C
?
US E156931
FEATURES
?
? Built-in CTs provide true-rms values of complex
waveforms
?
?
? Perfect for measuring AC current in IT applications
? Five ranges measure: 0-0.2A, 0-2A, 0-20A, 0-30A
and 0-50A
?
?
? 50A models features a split-core CT for easy installation
? Self-powered from 85-140Vac or 170-264Vac
?
?
?
?
? Large, easy-to-read, red LED display with 0.37" digits
? Reliable single-board construction
? Digital replacement for analog meters
? Approvals to UL/cUL/IEC/61010-1
Murata Power Solution’s new ACA-20RM Series are the world’s ?rst digital ac-ammeters
to incorporate a built-in current transformer (CT) to directly measure the true-rms value of
complex, non-sinusoidal ac currents from 2 to 50A – no bulky and expensive 5A “donut”
CTs are required! Operation and setup is straightforward: simply pass the load-carrying
wire through the on-board CT, apply power, and the ammeter is fully operational.
Five input ranges measure 0-0.2 amps (0.1mA resolution), 0-2 amps (0.001A resolution),
0-20 amps (0.01A resolution), 0-30 amps (0.1A resolution) or 0-50 amps (0.1A resolution).
The 50A model features an oversized split-core current transformer that easily accommo-
dates wires sizes up to 4 AWG (21.2mm 2 ). Two power supply options are available: 85-140V
(47-63Hz), and 170-264V (47-63Hz).
All models are totally self-contained; no external components are required. Power con-
sumption from a nominal 120V or 220V ac supply is less than 50mA. And, precision auto-
zeroing circuitry, super-stable components, and an rms-to-dc converter circuit combine to
achieve excellent performance when measuring the complex, non-sinusoidal, ac currents
found in today’s computer/telecom equipment.
ACA-20RM Series ammeters feature full-size, 0.37" (9.4mm) high, 3? digit, bright red
LED-displays and a built-in bezel/?lter assembly that features metal fasteners. They are
panel-cutout compatible with MPS’s DMS-20 Series of ac voltage and frequency monitors,
making ACA-20RM ammeters perfect replacements for older, less reliable, analog panel
meters in today’s sophisticated IT instrumentation.
CAL.
+
3? DIGIT
A/D CONVERTER
–
RMS-to-DC
CONVERTER
(L1)
+V
POWER
CONVERTER
–V
LED DISPLAY
BUILT-IN
CURRENT
A
B
TRANSFORMER
TB1
For full details go to
www.murata-ps.com/rohs
MEASURED AC
LOAD CURRENT
www.murata-ps.com/dpm
CURRENT LIMITED
AC SUPPLY
email: sales@murata-ps.com
MPM_ACA-20RM_B08 Page 1 of 5
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相关代理商/技术参数
ACA-20RM-4-AC4-RL
制造商:Murata Power Solutions 功能描述:True-RMS-AC Ammeters With Built-In CT
ACA-20RM-4-AC4-RL-ALM-C
功能描述:数字面板表 50A rng, 170-264Vac 3.5 Dig brght rd LED
RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
ACA-20RM-4-AC4-RL-C
功能描述:数字面板表 50AInput TrueRMS-AC RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
ACA-20RM-5-AC3-RL-ALM-C
功能描述:数字面板表 30A rng, 85-140Vac 3.5 Dig brght rd LED
RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
ACA-20RM-5-AC3-RL-C
功能描述:数字面板表 30AInput TrueRMS-AC RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
ACA-20RM-5-AC4-RL-ALM-C
功能描述:数字面板表 30A rng, 170-264Vac 3.5 Dig brght rd LED
RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
ACA-20RM-5-AC4-RL-C
功能描述:数字面板表 30AInput TrueRMS-AC RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
ACA-20RM-ALM
制造商:MURATA-PS 制造商全称:Murata Power Solutions Inc. 功能描述:True-rms-AC Ammeters with Alarm Function
