MODEL: KUWT

KUWT SPECIFICATIONS

ES-3658 Rev.9 Page 2/5

http://www.m-system.co.jp/

Suffix code 3 has been discontinued. Select code 4 instead.

4: Power photo MOSFET relay

[5] AUXILIARY POWER SUPPLY

AC Power

B: 100 V AC

C: 110 V AC

D: 115 V AC

F: 120 V AC

G: 200 V AC

H: 220 V AC

J: 240 V AC

DC Power

R: 24 V DC

V: 48 V DC

P: 110 V DC

[6] OPTIONS

blank: none

/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to M-System's web site.)

/C01: Silicone coating

/C02: Polyurethane coating

/C03: Rubber coating

TERMINAL SCREW MATERIAL

/S01: Stainless steel

GENERAL SPECIFICATIONS

Construction: Plug-in

Connection: M3.5 screw terminals

Screw terminal: Chromated steel (standard) or stainless

steel

Housing material: Flame-resistant resin (black)

Isolation: Voltage input to current input to DC output to

pulse output to auxiliary power

Computation: Time division multiplication

Overrange output: Approx. -10 – +120 % at 1 – 5 V

Zero adjustment(DC output): -5 to + 5 % (front)

Span adjustment(DC output): 95 to + 105 % (front)

INPUT SPECIFICATIONS

Frequency: 50 or 60 Hz

• Voltage Input

Operational range: 0 – 120 % of rating

Overload capacity: 150 % of rating for 10 sec., 120 %

continuous

• Current Input

Operational range: 0 – 120 % of rating

Overload capacity: 1000 % of rating for 3 sec., 200 % for 10

sec., 120% continuous

■ How To Determine Wattage Range

Calibration Range [W] = (Measuring Wattage) ÷

((VT Ratio) × (CT Ratio))

Check that the required calibration range is within the

available range in the table.

[example]

3-phase / 3-wire, measuring wattage 750 kW,

VT 3300 / 110 V, CT 250 / 5 A

I INPUT RANGE

•

3-phase / 3-wire

•

Single-phase / 3-wire

•

Single-phase / 2-wire

INPUT

INPUT

INPUT

BURDEN (VA)

BURDEN (VA)

BURDEN (VA)

STD.RANGE

STD.RANGE

STD.RANGE

AVAILABLE

RANGE

AVAILABLE

RANGE

AVAILABLE

RANGE

VOLT.

VOLT.

VOLT.

CURR.

CURR.

CURR.

110V/1A

110V/5A

220V/1A

220V/5A

110V/1A

110V/5A

220V/1A

220V/5A

200V/1A

200V/5A

±200 W

±1000 W

±400 W

±2000 W

±100 W

±500 W

±200 W

±1000 W

±200 W

±1000 W

0.2

/phase

0.4

/phase

0.2

/phase

0.2

0.4

0.1

0.5

0.1

0.5

0.1/ph

0.5/ph

0.1/ph

0.5/ph

0.1/ph

0.5/ph

±100 –

±240 W

±500 – ±1200 W

±200 –

±480 W

±1000 – ±2400 W

±50 – ±120 W

±250 – ±600 W

±100 – ±240 W

±500 – ±1200 W

±100 – ±240 W

±500 – ±1200 W

OUTPUT SPECIFICATIONS

■ DC OUTPUT

• DC Current: 0 – 20 mA DC and ± 1 mA

Minimum span: 1 mA

Offset: Max. 1.5 times span

Load resistance: Output drive 12 V max.

• DC Voltage: -10 – +12 V DC

Minimum span: 5 mV

Offset: Max. 1.5 times span

Load resistance: Output drive 1 mA max. at ≥ 0.5 V

■ Pulse output: Frequency output proportional to the input;

0 – 2.777 Hz typical; 0 Hz at 0 W (cutout at approx. 0.5 – 1.0

%); max. 27.77 Hz at 100 % input

ON duration: 0.025 sec. min.

0.150 sec. min. when the maximum frequency is less than

1 Hz, with the S5 rotary switch set to other than 0.

• Power Photo MOSFET Relay

Rating: 120 V AC/DC @ 100 mA (resistive load)

Max. ON resistance: 10 Ω

• Open Collector

Rating: 35 V DC @ 100 mA