Specifications

Environmental Requirements

Indoor usage at an altitude of 2000 meters or less.

Operating Temperature/Humidity

0–50°C, 5–85% RH (no condensation).

Storage Temperature/Humidity

-20–60°C, 90% RH (no condensation).

Insulation Resistance 

500 V DC, 50 MΩ or greater
Between voltage input terminals and case.
Between voltage input terminals and current input terminals, communication terminals, and control I/O terminals.
Between power line and case.
Between power line and current input terminals, communication terminals, and control I/O terminals.

Insulation Withstand Voltage 

5550 V AC for one minute
Between voltage input terminals and case.

3250 V AC for one minute
Between voltage input terminals and current input terminals,
communication terminals, and control I/O terminals.

2300 V AC for one minute
Between power line and case.
Between power line and current input terminals, communication terminals, and control I/O terminals.

Power Supply

100–240 V AC ±10%, 50/60 Hz

Consumed Power

8 VA maximum.

External Magnetic Field Effects

Within accuracy levels at 400 A/m.

External Dimensions

117mm (W) x 161mm (H) x 51 mm (D)

Weight

0.6 kg

Voltage Input

CW120: 3 terminals

Banana terminals (safety terminals)

CW121: 4 terminals

Banana terminals (safety terminals)

Current terminals (HL)

CW120: 2 pairs

Banana terminals (safety terminals)

CW121: 3 pairs

Banana terminals (safety terminals)

External control
 I/O terminals RS-485

3 terminals (H/L/H)
4 terminals (+/-/SG/TM)M3

Screwless terminals
Screw terminals

Connectors

RS-232: Mini DIN 8-pin
AC power supply: 2-pin

Voltage input probes:

3 for CW120, 4 for CW121

Safety Standard -Voltage input line:

Compliant with EN61010-1, EN61010-2-031
Overvoltage category III (Max. input voltage : 600 Vrms).

Compliant with EN61010-1, EN61010-2-031
Overvoltage category II (Max. input voltage : 264 Vrms)
Pollution degree 2

EMC Emission

Compliant with
EN55011, Group1, Class A; EN61326; EN61000-3-2; EN61000-3-3

EMC Immunity

Compliant with EN61326

Electrical  specifications:

Conforms to EIA RS-232 or EIA RS-485.

Synchronization system:

Start stop synchronization.

Baud rates:

1200, 2400, 4800, 9600, 19,200 bps.

PC Card Interface Slot:

PC card slot TYPE II.

Compatible card:

ATA flash memory card.

Function specifications:

Saving measurement data, saving and reading settings data.

Faulty Wiring Check details:

Presence/absence of power input; check for frequency measurement range; voltage phase sequence;
presence/absence of power input; whether current clamp is reverse-connected.

The VT ratio and CT ratio can be set.
VT ratio: 1–10,000
CT ratio: 1–10,000 (in increments of 0.01)

Control input:
Control output:

Other Functions

Saving Items:
 

Voltage, current, active power, reactive power, power factor, frequency, active electric energy, regenerative electric energy.

Display screen:

Backlit segmented LCD.

Electric energy:
Other parameters:

6 digits.
4 digits

Range Makeup: (rated values) Current Clamp-On Probe #96030

150.0V

6.000 kW

15.00 kW

30.00 kW

60.00 kW

300.0V

450.0V

1ø2W

1ø3W

3ø3W

3ø4W

Range Makeup: (rated values) Current Clamp-On Probe #96031

Voltage

Wiring

100.0 A

Range Makeup: (rated values) Current Clamp-On Probe #96032

Range Makeup: (rated values) Current Clamp-On Probe #96033

Voltage

Wiring

5000 A

10.00 A

20.00 A

50.00 A

150.0V

300.0V

450.0V