Crompton Instruments 797 Series Catalog Page

2002

Transformers

Moulded Case Current Transformers

797 Series Relaying and Metering

Model 797-940 * *

Model 797-941 * *

Application: For relaying and metering
Frequency: 50-400 Hz
Installation Class: 0.6 KV. BIL. 10 KV
Continuous Thermal Current

Rating Factor: 1.33 at 30°C ambient and

1.0 at 55°C ambient

Burdens:

ANSI 0.9 power factor meter burdens

• Manufactured to meet the requirements of
UL 1244 and revisions

• Flexible leads are UL 1015 105°C CSA
approved, #16 AWG, 24" long

• Non-standard lengh to be specifed

• Terminals are brass studs No. 8-32 UNC

with one flat washer, lockwasher and
regular nut

• UL Recognized

• ABS Approved

Multi-ratios available on request. Order mounting bracket kit separately option code MH. ie: 797-941U-UELS-MH

** NOTE: When ordering, prefix Cat. No with model designation required. I.e 797-940U-RLLS or 797-941U-RLLS.

Catalogue Number Current ANSI Accuracy Classification VA for Weight
(without mounting Rating Metering Class at 60Hz 1% Class (lb)

brackets) BO.1 B0.2 B0.5 B0.9 B1.8

* * U-RLLS 200:5 1.2 1.2 - - - 5.0 3.03
* * U-RSLS 250:5 0.6 1.2 - - - 5.0 3.07
* * U-RXLS 300:5 0.6 0.6 1.2 2.4 - 12.5 3.10
* * U-SCLS 400:5 0.3 0.6 1.2 1.2 2.4 25.0 3.17
* * U-SFLS 500:5 0.3 0.3 0.6 1.2 2.4 25.0 3.24
* * U-SJLS 600:5 0.3 0.3 0.6 0.6 1.2 25.0 3.31
* * U-SMLS 750:5 0.3 0.3 0.3 0.3 0.6 40.0 3.30
* * U-SNLS 800:5 0.3 0.3 0.3 0.3 0.6 50.0 3.32
* * U-SSLS 1000:5 0.3 0.3 0.3 0.3 0.6 75.0 3.43
* * U-SULS 1200:5 0.3 0.3 0.3 0.3 0.6 100.0 3.54
* * U-TCLS 1500:5 0.3 0.3 0.3 0.3 0.6 80.0 2.47
* * U-TELS 1600:5 0.3 0.3 0.3 0.3 0.6 90.0 2.53
* * U-TMLS 2000:5 0.3 0.3 0.3 0.3 0.3 105.0 2.79
* * U-TULS 2500:5 0.3 0.3 0.3 0.3 0.3 130.0 2.80
* * U-UALS 3000:5 0.3 0.3 0.3 0.3 0.3 165.0 3.14
* * U-UCLS 3500:5 0.3 0.3 0.3 0.3 0.3 190.0 3.48
* * U-UELS 4000:5 0.3 0.3 0.3 0.3 0.3 215.0 3.39

Specifications

Dimensions (inches)

Ordering Information