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Low Voltage Current Transformers (Low Voltage Switchgear And General Purpose)
| Primary Current Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 10 to 100 | 0.61 | - | CT212 | 9A | - |
| 50 to 300 | 1 | - | CT211 | 2D, 2DRL, 2DARL | - |
| 50 to 300 | 1.13 | - | CT201 | AL (2RL) | - |
| 50 to 300 (Mtg Feet) | 1.14 | - | CT225 | 2SFT | - |
| 75 to 800 | 1.22 | - | CT222 | - | - |
| 50 to 1000 | 1.22 | - | CT223 | - | - |
| 50 to 1000 | 1.22 | - | CT224 | - | - |
| 50 to 400 | 1.25 | - | CT229 | 16SFT | - |
| 100 to 1000 | 1.25 | CT230ex | CT230 | 21 | - |
| 50 to 1200 (Mtg Feet) | 1.55 | - | CT226 | 5SFT | - |
| 50 to 1200 | 1.56 | - | CT202 | 5RL | - |
| 100 to 500 | 1.63 | CT231ex | CT231 | 22 | - |
| 100 to 600 | 2.00 | CT232ex | CT232 | 23 | - |
| 100 to 1500 (Mtg Feet) | 2.05 | - | CT227 | 6SFT | - |
| 100 to 1500 | 2.06 | - | CT203 | 6RL | - |
| 50 to 1200 (Fast-On term) | 2.06 | - | CT304 | BL, BT, BF | - |
| 50 to 1200 | 2.08 | - | CT300 | 56 (RB, RT, RL) | - |
| 50 to 1200 (Mtg Bracket) | 2.08 | - | CT301 | 56RBT | - |
| 50 to 1200 (Mtg Bracket, leads) | 2.08 | - | CT302 | 56RBL | - |
| 50 to 1200 | 2.25 | CT372ex | CT372 | 112 | SCG-1 |
| 50 to 1500 | 2.25 | - | CT206 | 7RL | - |
| 100 to 1600 | 2.5 | - | CT204 | 7RL | - |
| 50 to 600 (Mtg Brackets) | 2.5 | - | CT213 | 200 | - |
| 50 to 2000 | 2.5 | - | CT220 | 180SHT | - |
| 100 to 1600 | 2.5 | CT233ex | CT233 | 24 | - |
| 100 to 1600 | 2.5 | - | CT235 | 7SHT | - |
| 50 to 1500 | 2.75 | CT373ex | CT373 | 113 | SCG-2 |
| 200 to 2000 | 2.87 | CT244ex | CT244 | - | - |
| 200 to 2000 | 3 | - | CT303 | 76RBL | - |
| 50 to 800 | 3 | CT382ex | CT382 | 298 | SCH-3 |
| 200 to 2000 | 3.06 | - | CT365 | 195 | - |
| 200 to 2000 | 3.13 | - | CT234 | 25 | - |
| 50 to 1600 | 3.25 | CT374ex | CT374 | 114 | SCG-3 |
| 200 to 4000 | 3.25 | - | CT205 | 8RL | - |
| 200 to 4000 (Terminals) | 3.25 | - | CT255 | 8SHT | - |
| 50 to 1200 | 3.25 | CT390ex | CT390 | - | SCK |
| 50 to 1200 | 3.25 | CT391ex | CT391 | - | - |
| 50 to 800 (Mtg Brackets) | 3.5 | - | CT214 | 201 | - |
| 300 to 4000 | 3.5 | - | CT207 | - | - |
| 50 to 3200 | 4 | CT375ex | CT375 | 115 | SCG-4 |
| Up to 4000(Terminals) | 4 | CT236ex | CT236 | 100 | SCN |
| 100 to 4000 | 4 | - | CT239 | - | - |
| 200 to 4000 | 4.25 | - | CT209 | 170RL | - |
| 200 to 4000 | 4.25 | - | CT221 | 170SHT | SCE |
| 50 to 3000 | 4.33 | CT347ex | CT347 | - | - |
| 600 to 3000 | 4.33 | CT347MRex | CT347MR | - | - |
| 50 to 3000 | 4.33 | CT348ex | CT348 | - | - |
| 600 to 3000 | 4.33 | CT348MRex | CT348MR | - | - |
| 100 to 1000 (Mtg Brackets) | 4.50 | - | CT217 | 204 | - |
| 50 to 4000 | 4.62 | CT377ex | CT377 | 117 | SCG-5 |
| 100 to 1000 (Mtg Brackets) | 4.88 | - | CT215 | 202 | - |
| 200 to 5000 (Mtg Brackets) | 5.25 | - | CT216 | 203, 203MR | - |
| 50 to 5000 | 5.75 | CT237ex | CT237 | 135, 135MR | SCO |
| 200 to 4000 | 5.75 | CT242ex | CT242 | 130 | SCL-D |
| 200 to 4000 | 5.75 | CT240ex | CT240 | 120 | - |
| 600 to 4000 | 6.31 | - | CT238 | 125, 125MR | SCM |
| 400 to 5000 | 8.25 | - | CT241 | 126 | - |
Split Core Current Transformers
| Primary Current Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 100 to 400 | 0.84 x 2.16 | - | CT160 | 613 | - |
| 100 to 400 | 0.90 x 2.16 | - | CT150 | - | - |
| 200 to 300 | 1.26 x 1.42 | - | CT170 | - | - |
| 200 to 1200 | 1.60 x 3.42 | - | CT161 | - | - |
| 200 to 1200 | 1.65 x 3.42 | - | CT151 | - | - |
| 600 to 3000 | 2.36 x 5.70 | - | CT152 | - | - |
| 600 to 3000 | 2.40 x 5.71 | - | CT162 | 600 | - |
| 200 to 1200 | 2.44 x 2.89 | - | CT171 | - | - |
3 Phase Current Transformers
| Primary Current Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 50 to 100 | 1.25 | CT460ex | CT460 | - | - |
| 150 to 1000 | 2 | CT461ex | CT461 | 3P41 | - |
| 300 to 1000 | 2.5 | CT462ex | CT462 | 3P42 | - |
| 50 to 1200 | 2.25 | CT481ex | CT481 | - | - |
| 50 to 1200 | 2.41 | CT480ex | CT480 | - | - |
Medium Voltage Switchgear Current Transformers
| Primary Current Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 50 to 4000 | 5.08 | CT108ex | CT108 | - | - |
| 1200 to 3000 | 5.08 | CT109ex | CT109MR | - | - |
| 600 to 4000 (multi-ratio) | 5.9 | CT105ex | CT105MR | - | - |
| 50 to 5000 | 5.25 | CT342ex | CT342 | 622 | SAB-1 |
| 600 to 4000 (multi-ratio) | 5.25 | CT342MRex | CT342MR | 622 (multi-ratio) | SAB-1 (multi-ratio) |
| 50 to 5000 | 5.25 | CT344ex | CT344 | 624 | SAB-1D |
| 600 to 4000 (multi-ratio) | 5.25 | CT344MRex | CT344MR | 624 (multi-ratio) | SAB-1D (multi-ratio) |
| 50 to 5000 | 6.5 | CT343ex | CT343 | 623 | SAB-2 |
| 600 to 4000 (multi-ratio) | 6.5 | CT343MRex | CT343MR | 623 (multi-ratio) | SAB-2 (multi-ratio) |
| 50 to 5000 | 6.5 | CT345ex | CT345 | 625 | SAB-2D |
| 600 to 4000 (multi-ratio) | 6.5 | CT345MRex | CT345MR | 625 (multi-ratio) | SAB-2D (multi-ratio) |
| 50 to 6000 | 6.5 | CT101ex | CT101 | 780 | SCV |
| 50 to 4000 | 6.5 | CT101Iex | CT101I (IEC) | 780I | - |
| 600 to 4000 (multi-ratio) | 6.5 | CT102ex | CT102MR | 781 | SCV |
| 50 to 4000 | 6.5 | CT103ex | CT103 | 785 | SCV-D |
| 50 to 4000 | 6.5 | CT103Iex | CT103I (IEC) | 785I | - |
| 600 to 4000 (multi-ratio) | 6.5 | CT104ex | CT104MR | 786 | SCV-D |
| 50 to 5000 | 7.02 | CT111ex | CT111 | 680 | SCR |
| 600 to 4000 (multi-ratio) | 7.02 | CT111MRex | CT111MR | 681 | SCR |
| 50 to 5000 | 7.02 | CT112ex | CT112 | 685 | SCR-D |
| 600 to 4000 (multi-ratio) | 7.02 | CT112MRex | CT112MR | 686 | SCR-D |
| 50 to 4000 | 7.25 | CT340ex | CT340 | 882 | SCP-2 |
| 600 to 4000 (multi-ratio) | 7.25 | CT340MRex | CT340MR | - | - |
| 50 to 6000 | 7.31 | CT354ex | CT354 | 142 | SCP-2 |
| 600 to 4000 (multi-ratio) | 7.31 | CT354MRex | CT354MR | 142MR | - |
| 50 to 6000 | 7.31 | CT355ex | CT355 | 143 | SCD-2, BYZ-S |
| 600 to 4000 (multi-ratio) | 7.31 | CT355MRex | CT355MR | 143MR | - |
| 50 to 6000 | 8.13 | CT352ex | CT352 | 140 | SCP-3 |
| 600 to 4000 (multi-ratio) | 8.13 | - | CT352MR | 140MR | - |
| 50 to 6000 | 8.13 | CT353ex | CT353 | 141 | SCD-3 |
| 600 to 4000 (multi-ratio) | 8.13 | CT353MRex | CT353MR | 141MR | - |
Ground Fault Sensors (600 V)
| Primary Current Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 50 | 6.31 | - | CT238 | HGF5C | - |
| 50 to 100 | 7.31 | - | CT355 | 143 | - |
| 50 to 100 | 12.80 x 13.58 | - | CTQ2340 | - | - |
| 50 to 100 | 12.80 x 13.60 | CT502ex | CT502 | - | - |
| 50 to 500 | 8.06 x 22.06 | - | CT428 | 593, 594 | BYZ-L |
Rectangular Current Transformers
| Primary Current Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 1000 to 1250 | 1.69 x 0.43 | - | CT405 | - | - |
| 400 to 800 | 1.69 x 0.59 | - | CT406 | - | - |
| 1600 to 3200 | 2.37 x 3.15 | - | CT426 | 584 | - |
| 5000 to 9000 | 2.56 x 4.0 | - | CT403 | - | - |
| 100 to 2000 | 2.63 x 5.25 | CT425ex | CT425 | - | - |
| 100 to 4000 | 3.25 x 4.25 | CT401ex | CT401 | 561 | - |
| 1600 to 2000 | 3.26 x 0.71 | - | CT407 | - | - |
| 2000 to 4000 | 4.00 x 5.38 | - | CT400 | 562 | - |
| 100 to 2000 | 4.25 x 1.18 | CT409ex | CT409 | - | - |
| 100 to 3200 | 4.29 x 3.24 | - | CT410 | - | - |
| 2000 to 5000 | 4.25 x 5.67 | - | CT411 | - | - |
| 100 to 3200 | 4.26 x 2.77 | CT420ex | CT420 | - | - |
| 200 to 3200 | 4.75 x 3.75 | - | CT435 | 567TL | - |
| 200 to 3200 | 4.75 x 3.75 | - | CT436 | 567TS | - |
| 2500 to 3200 | 4.84 x 0.71 | - | CT408 | - | - |
| 2000 to 5000 | 5.85 x 4.25 | CT421ex | CT421 | - | - |
| 2500 to 6000 | 6.33 x 2.13 | - | CT422 | - | - |
| 4000 to 6000 | 6.30 x 5.17 | - | CT423 | - | - |
| 2500 to 3000 | 6.33 x 1.79 | - | CT424 | - | - |
| 2000 to 6000 | 6.90 x 3.15 | - | CT427 | 585 | - |
| 400 to 5000 | 7.45 x 3.75 | - | CT430 | 568TL | - |
| 400 to 5000 | 7.45 x 3.75 | - | CT431 | 568TS | - |
| 50 to 500 | 8.06 x 22.06 | CT428ex | CT428 | 593, 594 | BYZ-L |
| 50 to 100 | 12.80 x 13.58 | - | CTQ2340 | - | - |
Auxiliary Current Transformers
| Primary Current Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 0.4 to 10.5 | - | - | CT550 | 190, 190X | - |
Miniature Current Transformers
| Primary Current Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| - | 6.9 | - | CT600 | 11 | - |
| - | 9 | - | CT601 | 12 | - |
| - | 94 | - | CT602 | 12 | - |
| - | 10 | - | CT604 | 12 | - |
| - | 12.8 | - | CT603 | 14 | - |
Single Phase 600 Volt Voltage Transformers
| Primary Voltage Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 69.3 to 600 | 150VA @ 30°C | - | PT100 | 465 | PPD |
| 69.3 to 600 | 75VA @ 30°C | - | PT101 | 468 | - |
| 69.3 to 600 | 50VA @30°C | - | PT102 | 467 | - |
| 69.3 to 600 | 40VA @ 30°C | - | PT103 | 469, 2VT469 | - |
| 69.3 to 600 | 150VA @ 30°C | - | PT104 | 460 | - |
| 69.3 to 600 | 750VA @ 30°C | - | PT105 | 450 | - |
Three Phase 600 Volt Voltage Transformers
| Primary Voltage Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 69.3 to 346 | 150VA @ 30°C | - | PT300 | 3VTN460 | - |
| 69.3 to 600 | 150VA @ 30°C | - | PT301 | 2VTN460 | - |
Medium Voltage Current Transformers
| Primary Current Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| up to 1000A | 15.5kV | - | C6.1 | CTW5 | - |
| 5 to 600 | 5.6kV | - | C8.6 | CTW3 T50 | - |
| 5 to 1200 | 5.6kV | - | C8.7 | CTWH3 T100 | - |
| 5 to 600 | 5.6kV | - | C18 | CTWH3 T50 | - |
Medium Voltage Single Phase Indoor Voltage Transformers
| Primary Voltage Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 2400 to 4800 | 5.6kV | - | V9 | PTG3 | VIY-60 |
| 2400 to 4800 | 5.6kV | - | V9.1 | PTW3 | VIY-60 |
| 2400 to 14400 | 15.5kV | - | V21.1 | PTG4, PTG5 | VIZ-75, VIZ-11 |
| 2400 to 14400 | 15.5kV | - | V21.1 (Westinghouse Style) | PTW4, PTW5 | VIZ-75, VIZ11 |
| 4160 to 13800 | 15.5kV | - | V21.5 | - | TJP 5.0 |
| 2400 to 14400 | 15.5kV | - | V21.7 | - | - |
| 2400 to 14400 | 15.5kV | - | V21.7F | - | - |
| 7200 to 14400 | 15.5kV | - | V10 | PTW4, PTG4, PTW5, PTG5 | VIZ-75,VIZ-11 |
| 7200 to 24000 | 25.5 kV | - | V22.1 | - | VIZ-12 |
| 12000 to 24000 | 25.5 kV | - | V22.2 | - | VIZ-12G |
| 12000 to 24000 | 25.5 kV | - | V22.2F | - | VIZ-12G |
| 18000 to 24000 | 25.5 kV | - | V22.5 | PT6-2 | - |
| 10200 to 24000 | 25.5 kV | - | V22.6 | PT6-1 | - |
| 24000 to 34500 | 36.5 kV | - | V36.7 | PT7-1 | - |
| 15240 to 34500 | 36.5 kV | - | V36.7-2 | PT7-2 | - |
Medium Voltage Three Phase Indoor Voltage Transformers
| Primary Voltage Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 2400 to 7200 | 7.2kV | - | V19 | - | - |
| 2400 to 7200 | 7.2kV | - | V19.4 | - | - |
| 7200 to 13200 | 13.2kV | - | V20.2 | - | - |
| 6600 to 13200 | 15.5kV | - | V21 | - | - |
Wound Primary Current Transformers
| Primary Current Range |
Window Size (Inches)/ Voltage Class | Curves | Model Number | GE-ITI Model # | ABB Model # |
| 5 to 150 | - | CT850ex | CT850 | - | - |
