Crompton Instruments 128 Catalog Page

36

Application:

Metering

Frequency:

50 – 400Hz

Insulation Level:

600 Volts, 10kV BIL full wave

• Terminals are brass studs No. 10 – 32
with one flatwasher, lockwasher and
regular nut

• Multi ratios available upon request

• Order mounting bracket kit separately

• Approximately weight: 5.5 lbs

Model 128

Window Diameter 8.25"

120 – 201 200:5 – 1.2 1.2 2.4 4.8 4.8 0.053 2.0 2.0
126 – 401 400:5 4.0 0.6 1.2 1.2 2.4 4.8 0.166 2.0 2.0
126 – 501 500:5 7.5 0.6 0.6 1.2 1.2 2.4 0.145 2.0 2.0
126 – 601 600:5 10.0 0.6 0.6 0.6 1.2 2.4 0.173 2.0 2.0
126 – 751 750:5 15.0 0.3 0.3 0.6 0.6 1.2 0.217 2.0 1.5
126 – 801 800:5 20.0 0.3 0.3 0.6 0.6 1.2 0.231 2.0 1.5
126 – 102 1000:5 25.0 0.3 0.3 0.3 0.6 0.6 0.289 2.0 1.5
126 – 122 1200:5 40.0 0.3 0.3 0.3 0.3 0.3 0.347 1.5 1.33
126 – 152 1500:5 50.0 0.3 0.3 0.3 0.3 0.3 0.434 1.5 1.0
126 – 162 1600:5 50.0 0.3 0.3 0.3 0.3 0.3 0.462 1.5 1.0
126 – 202 2000:5 60.0 0.3 0.3 0.3 0.3 0.3 0.578 1.33 1.0
126 – 252 2500:5 75.0 0.3 0.3 0.3 0.3 0.3 0.904 1.0 0.8
126 – 302 3000:5 90.0 0.3 0.3 0.3 0.3 0.3 0.722 1.33 1.0
126 – 322 3200:5 95.0 0.3 0.3 0.3 0.3 0.3 0.770 1.33 1.0
126 – 352 3500:5 100.0 0.3 0.3 0.3 0.3 0.3 0.842 1.0 0.8
126 – 402 4000:5 125.0 0.3 0.3 0.3 0.3 0.3 0.962 1.0 0.8
126 – 502 5000:5 140.0 0.3 0.3 0.3 0.3 0.3 1.203 1.0 0.8

ANSI metering class at 60Hz

Secondary
winding
resistance
(0HMS @ 75˚C

Continuous
thermal
rating factor

@30˚C @55˚C

Catalogue Current

Relay

Number Ratio Class

B0.1 B0.2 B0.5 B0.9 B1.8

Approvals

CSA 223647

UL 257877