Murata Power Solutions ACM3P Three-Phase AC Ammeters

Murata Power Solutions ACM3P Three-Phase AC Ammeters measure and display the true-rms values of two- or three-phase AC mains current. These low-profile ammeters have three built-in current transformers. The devices display true-rms values of triangle, square, and other irregularly shaped waveforms. With a universal input operating supply range of 85V_AC to 264V_AC (46Hz to 63Hz), Murata ACM3P Ammeters are suitable for three-phase worldwide current monitoring requirements. The 9.2mm low-power red, blue, or green LEDs are readable from a 5m distance.

Features

Measure and display the true-rms current of 3-phase power systems range
Universal 85V_AC to 264V_AC (47Hz to 63Hz) operating supply
3 built-in current transformers measure up to 100A per phase
Ideal for power distribution units (PDUs) and backup power systems

Low-power consumption of <1/4W from 120V_AC supply
Single-piece polycarbonate housing fits 0U and 1U rack spaces
Low-profile, surface-mount design occupies minimal behind-the-panel space
Available in red, green, or blue LEDs with phase annunciators
Cost-effective, approvals to UL/cUL/IEC/61010-1

Specifications

Display
- 4 digit LED display, 9.14mm (0.36") high
- Flashing over-range indication
- Automatically set decimal point selection
Temperature ranges
- 0 to +60°C operating
- -40°C to +75°C storage
50mA or 75mA operating supply current options

100A input current
85% maximum humidity, non-condensing
2.6oz (74g) in weight (all models)
Power supply terminal block (TB1)
- 22AWG to 16AWG wire size, solid or stranded
- 6.4mm (0.250") insulation strip length
- 0.4Nm screw tightening torque (3.6lbs-in)
- 300V_AC rated voltage