WARTSILA ACM-20 Four-Function AC Power Meters

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Long Description

Murata Power Solutions’ ACM20 series AC power meters display the most critical measurements in mains-powered equipment: voltage, amperage, active power (watts), and power factor. A front panel selector-switch provides two modes of operation: a fixed reading of any of the four parameters, or a continuous cycling through all four measurements. An optional model displays line frequency with 0.1Hz resolution. All ACM20 multi-function power meters include built-in current transformers—no other user-supplied components are required. ACM20 series AC power meters are available in a choice of three input ranges: 0-10A (with 0.001A resolution, 999.9 watts max.); 0-32A (with 0.01A resolution, 9999 watts max.); and 0-100A (0.1A resolution, 26.4kW max.). An 85-264Vac (47-63Hz) operating supply range makes these power meters perfect for worldwide power monitoring applications. And, unlike conventional, average-responding products, ACM20 power meters can accurately display the real power and true-rms current values of triangle waves, square waves, and other irregularly shaped waveforms, with a typical accuracy of ±1% of full scale.

Technical Details

Dimensions: 7.4×14.2×19.8 cm
Weight: 0.38 kg
Sampling Rate: 2–3 samples/sec
Voltage Accuracy: ±1%
Current Accuracy: ±1%
Power Accuracy: ±2%
Frequency Accuracy: ±0.1 Hz
Power Factor Accuracy: ±3%
Measurement Bandwidth: 140 Hz (Voltage), 14 kHz (Current)
Temperature Drift (0–60°C): 0.5 Counts/°C
Zero-Current Reading (within 2 sec): 0.00 Amps
Zero-Power Reading (within 2 sec): 0 Watts
Measurement Category: UL/IEC61010-1 CAT II
Overcurrent Rating: 1.5× rated full-scale current
Wire Size: 16–22 AWG, solid or stranded
Insulation Strip Length: 6.4 mm (0.250 in)
Screw Tightening Torque: 0.4 N·m (3.6 lb-in)
Rated Voltage: 300 VAC
Display Type & Size: 4-digit LED, 9.14 mm (0.36 in) high
Overrange Indication: Flashing ‘9999’ Watts
Decimal Point Selection: Automatically Set
Operating Temperature: 0–+60 °C
Storage Temperature: −40–+75 °C
Humidity (non-condensing): 0–85 %
Weight (32A model): 1.3 oz (37.9 g)
Weight (100A model): 1.5 oz (43.5 g)
Hex Nut Tightening Torque: 0.14 N·m (20 ozf-in)
AC Voltage Range: 85–264 VAC
Frequency Range: 47–63 Hz

FEATURES

Displays AC Volts, Amps, Watts, and Power Factor or Hertz

Two display modes: continuous auto cycling or fixed

Universal 85-264Vac (47-63Hz) operating range (Measurement Category II)

Built-in current transformers simplify installation; choice of 10A, 32A, or 100A ranges

Ideal for power distribution units (PDUs) and power strips

True-rms readings of complex voltage and current waveforms

Low-power consumption: less than ¼watt from 120Vac

One-piece polycarbonate housing fits ‘0U’ & ‘1U’ racks

Surface mount design occupies minimal panel space

Bright red LED-display with four annunciators

Optional Frequency reading models (0.1Hz resolution)

Approvals to UL/CSA/IEC/EN 61010-1

Panel Installaton
All connections to ACM20  power meters must be made after the unit is securely attached to the panel and with all associated load and supply voltages de energized (off), using extreme caution and observing all safety measures applicable to the user’s installation.
Care should be exercised when passing conductors through the power meter’s built-in current transformer L1.
The installed wire positions should be such that minimal mechanical forces are applied to current transformer L1, TB1, or to the ACM20  power meter itself.
In high-vibration environments, it is strongly recommended that adequate strain reliefs be used for all wiring.

FAQ

 Q: Are your products brand new or refurbished?
A: All our products are brand new and come with a one-year warranty.
 
Q: How long will it take for the goods to arrive after I place an order?
A: Once payment is confirmed, we ship immediately. Delivery typically takes 3-5 days from China to your location.
 
Q: Do you offer any discounts?
A: Yes! For discounts on ACM20, please contact John for the best offer.

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Our company sells a wide range of brands. For inquiries about other products, please contact Sales Manager John Yang:

Email: sales3@askplc.com 

Mobile (WhatsApp):  86-18150117685

Disclaimer

Moore specializes in the supply of both new and surplus industrial components, backed by an ever-growing global sourcing network. Please note that any manufacturer names, trademarks, or brand logos featured on this site are the property of their respective owners and are used for identification purposes only. Their appearance does not indicate an official partnership, endorsement, or authorized distributorship. We operate as an independent provider of high-quality automation solutions.