Accessories
Current Transformers (CTs)
CT SELECTION GUIDE
PRODUCT
SE-601
PGR-3100
PGR-3200
GROUND FAULT
PROTECTION
GROUND-FAULT CT
No CTs required
No CTs required
No CTs required
No CTs required
CT-200 Series
GROUND-FAULT TRIP LEVEL
(or insulation level)
1-20 mA
Indication only
Warnings at 30 kΩ & 50 kΩ,
Alarm at 10 kΩ
5 ± 0.9 mA
10-198 A
50 mA-4.95 A
300 mA-29.7 A
10 mA-5 A
30-5,000 mA AC and DC
0.5-4 A
0.5-12.5 A
0.5-12.5 A
2.0-50 A
12-200 A
100 mA-5 A
600 mA-30 A
0.5-4 A
0.4-150 A
10-200 A
50 mA-5 A
300 mA-30 A
10-200 A
50 mA-5 A
300 mA-30 A
SE-502
SE-701/SE-703
SE-704
EL731
SE-105/SE-107
SE-134C/SE-135
SE-145
EFCT Series
SE-CS30 Series
SE-CS30 Series
EFCT Series
CT200 Series
SE-CS10 Series
SE-CS10 Series
SE-CS40 Series
CT200 Series
EFCT Series
SE-CS30 Series
CT200 Series
No phase CTs required <25 A,
Optional SE-CS30 Series Ground-Fault CT
CT200 Series
EFCT Series
SE-CS30 Series
CT200
RESISTANCE
GROUNDING
TRAILING CABLE
PROTECTION
SE-330
SE-325
PGR-6150
MPU-32*
MOTOR & PUMP
PROTECTION
MPS*
MPU-32-X69X-PMA16
MPS-469X-PMA24
PGR-6800
FPU-32*
EFCT Series (5-A Primary)
SE-CS30 Series (30-A Primary)
Existing CTs can be used or same as MPU-32.
Existing CTs can be used or same as MPS.
No CTs required <91 A
CT200 Series
EFCT Series
SE-CS30 Series
CT200
N/A
†
10-200 A
50 mA-5 A
300 mA-30 A
10-200 A
50 mA-5 A
300 mA-30 A
N/A
FEEDER
PROTECTION
FPS*
AF1000
‡
EFCT Series (5-A Primary)
SE-CS30 Series (30-A Primary)
CTs are optional
ARC-FLASH
PROTECTION
*Phase CTs should be selected with a primary rating of 100-300% of rated current to maintain specified accuracy. CTs with a 1-A or 5-A secondary are accepted.
†Trip levels are model specific, see ordering information..
‡Select a CT with a primary rating approximately equal to the system’s rated current. CTs with 5-A secondary current are accepted.
© 2014 Littelfuse Protection Relays & Controls
Rev: 4-B-061214
Accessories
Current Transformers
CURRENT TRANSFORMERS
CURRENT TRANSFORMERS
Product
Features
Inner Diameter
Accessory For
CT200 (PGC-2056)
Current Transformer
Detects phase current or ground-fault
current. (200-A primary)
Detects phase current or ground-fault
current. (200-A primary)
Sensitive current transformer used to
detect ground-fault current. (5-A primary)
Sensitive current transformer used to
detect ground-fault current. (5-A primary)
Sensitive current transformer used to
detect ground-fault current. (5-A primary)
Fits in the EFCT-1 window to reduce
saturation and prevent false operation
due to large surge currents.
Detects ground-fault current.
56 mm
(2.20")
89 mm
(3.50")
26 mm
(1.02")
82 mm
(3.23")
140 mm
(5.50")
70 mm
(2.75")
64 mm
(2.50")
108 mm
(4.25")
160 mm
(6.31")
210 mm
(8.25")
26 mm
(1.02")
70 mm
(2.76")
95 mm
(3.74")
130 mm
(5.12")
200 mm
(7.87")
SE-330 SE-105/107
FPS
SE-701
MPU-32
FPU-32
MPS
SE-325 AF1000
SE-701
SE-107
AF1000
SE-330
SE-701
SE-105
MPS
FPS
MPS
FPU-32
EL731
MPU-32
FPU-32
MPU-32
FPS
CT200L (PGC-2089)
Current Transformer
EFCT-26 (PGC-3026)
Ground-Fault Current
Transformer
EFCT-1 (PGC-3082)
Ground-Fault Current
Transformer
SE-330
MPS
MPU-32
SE-701 FPU-32
FPS
EL731
SE-701
MPU-32
EL731
EFCT-1
MPS
FPU-32
FPS
EFCT-2 (PGC-3140)
Ground-Fault Current
Transformer
EFCT-1FC (PGC-31FC)
Flux Conditioner
SE-CS10-2.5 (PGC-4064)
Current Sensor
SE-134C
SE-135
SE-145
SE-CS10-4 (PGC-4108)
Current Sensor
Detects ground-fault current.
SE-134C
SE-135
SE-145
SE-CS10-6 (PGC-4160)
Current Sensor
Detects ground-fault current.
SE-134C
SE-135
SE-145
SE-CS10-8 (PGC-4210)
Current Sensor
Detects ground-fault current.
Current Transformer for low-level
ground faults. (30-A primary)
Current Transformer for low-level
ground faults, flux conditioner
is standard. (30-A primary)
Current Transformer for low-level
ground faults, flux conditioner
is standard. (30-A primary)
Current Transformer for low-level
ground faults, flux conditioner
is standard. (30-A primary)
Current Transformer for low-level
ground faults, flux conditioner
is standard. (30-A primary)
Detects ground-fault current
SE-134C
SE-704
SE-330
SE-701
PGR-6100
SE-704
SE-330
SE-701
PGR-6100
SE-704
SE-701
PGR-6100
SE-704
SE-701
PGR-6100
SE-704
SE-701
PGR-6100
SE-135
SE-135
SE-145
MPU-32
MPS
FPU-32
FPS
MPU-32
MPS
FPU-32
FPS
MPU-32
MPS
FPU-32
FPS
MPU-32
MPS
FPU-32
FPS
MPU-32
MPS
FPU-32
FPS
SE-145
SE-CS30-26 (PGC-5025)
Ground-Fault Current Transformer
SE-CS30-70 (PGC-5060)
Ground-Fault Current Transformer
SE-CS30-4 (PGC-5095)
Ground-Fault Current Transformer
SE-CS30-5 (PGC-5130)
Ground-Fault Current Transformer
SE-CS30-8 (PGC-5200)
Ground-Fault Current Transformer
SE-CS40-6
Current Sensor
© 2014 Littelfuse Protection Relays & Controls
160 mm
(6.31”)
Rev: 4-B-061214
Accessories
Current Transformers
PGC FAMILY, PGG FAMILY
CURRENT TRANSFORMERS
Product
Features
Inner Diameter
Accessory For
PGC-6035
Ground-Fault Current
Transformer
Current transformer for measuring
ground-fault current.
Current transformer for measuring
ground-fault current.
Current transformer for measuring
ground-fault current.
Current transformer for measuring
ground-fault current.
Current transformer for measuring
ground-fault current.
35 mm
(1.38")
60 mm
(2.36")
80 mm
(3.15")
110 mm
(4.33")
210 mm
(8.27")
PGR-6150
PGC-6060
Ground-Fault Current
Transformer
PGR-6150
PGC-6080
Ground-Fault Current
Transformer
PGR-6150
PGC-6110
Ground-Fault Current
Transformer
PGR-6150
PGC-6210
Ground-Fault Current
Transformer
NOTE: Contact factory for additional CT offerings.
PGR-6150
© 2014 Littelfuse Protection Relays & Controls
Rev: 4-B-061214
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