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POWR-GARD® Accessories
© 2010 Littelfuse • POWR-GARD® Protection Relay Catalog
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ACCESSORIES
33
POWR-GARD® Accessories
© 2010 Littelfuse • POWR-GARD® Protection Relay Catalog
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ACCESSORIES
Current Transformers (CTs)
CT SELECTION GUIDE
PRODUCT GROUND-FAULT CT TRIP LEVEL PAGE #
PGR-2601 No CTs required 1 mA – 20 mA –
PGR-3100 No CTs required N/A –
PGR-3200 No CTs required Warnings at 30 kΩ & 50 kΩ, Alarm at 10 kΩ–
PGR-4300 No CTs required 100 A – 1200 A –
PGR-4704 PGC-5000 Series 10 mA – 5 A 34
PGR-5330
PGC-2000 Series (200 A Primary) 12 A – 200 A 34
PGC-3000 Series - EFCT (5 A Primary) 100 mA – 5 A 34
PGC-5000 Series (30-A Primary) 600 mA – 30 A 34
PGR-5701
PGC-2000 Series (200-A Primary) 10 A – 198 A 34
PGC-3000 Series (5-A Primary) 50 mA – 4.95 A 34
PGC-5000 Series (30-A Primary) 300 mA – 29.7 A 34
PGN-1000 CTs are included in system N/A –
PGN-3000 CTs are included in system N/A –
PGR-6100 PGC-5000 Series 10 mA – 3 A 34
PGR-6130 No CTs required N/A –
PGR-6150 PGC-6000 Series 0.4 – 150 A 35
PGR-6200*
PGC-2000 Series (200-A Primary) 10 A – 200 A 34
PGC-3000 Series (5-A Primary) 50 mA – 5 A 34
PGC-5000 Series (30-A Primary) 300 mA – 30 A 34
PGR-6210* Same as PGR-6200. Existing CT can be used in most cases.
PGR-6300*
PGC-3000 Series (5-A Primary) 50 mA – 5 A 34
PGC-5000 Series (30-A Primary) 300 mA – 30 A 34
Standard Iron core CTs (ie 50:5; 100:5, 200:5) 1 to 100% of CT Primary –
PGR-6800 No CTs required N/A –
PGR-7200*
PGC-2000 Series (200-A Primary) 10 A – 200 A 34
PGC-3000 Series (5-A Primary) 50 mA – 5 A 34
PGC-5000 Series (30-A Primary) 300 mA – 30 A 34
PGM-8134 PGC-4000 Series 0.5 A – 12.5 A 34
PGM-8325 PGC-2000 Series 0.5 A – 4 A 34
PGM-8600 No CTs required Warnings at 30 kΩ & 50 kΩ, Alarm at 10 kΩ–
LEGEND: GFP (GROUND FAULT PROTECTION) MP (MOTOR PROTECTION) FP (FEEDER PROTECTION)
SM (SUPPLEMENTAL MONITORING) RG (RESISTANCE GROUNDING)
* 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.
34
www.littelfuse.com/protectionrelays
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POWR-GARD® Accessories
ACCESSORIES
© 2010 Littelfuse • POWR-GARD® Protection Relay Catalog
Current Transformers
PGC FAMILY
CURRENT TRANSFORMERS
Product
Features
Inner Diameter
Accessory For
PGC-2056
Phase Current Transformer
Detects phase current or ground-fault
current. (200 A primary)
56 mm
(2.20")
PGR-5330
PGR-5701
PGR-6200
PGR-6300
PGR-7200
PGM-8325
PGC-2089
Phase Current Transformer
Detects phase current or ground-fault
current. (200 A primary)
89 mm
(3.50")
PGR-5701
PGR-6200
PGR-6300
PGR-7200
PGC-3026
Ground-Fault Current
Transformer
Sensitive current transformer used to
detect ground-fault current. (5 A primary)
26 mm
(1.02")
PGR-5330
PGR-5701
PGR-6200
PGR-6300
PGR-7200
PGC-3082
Ground-Fault Current
Transformer
Sensitive current transformer used to
detect ground-fault current. (5 A primary)
82 mm
(3.23")
PGR-5330
PGR-5701
PGR-6200
PGR-6300
PGR-7200
PGC-3140
Ground-Fault Current
Transformer
Sensitive current transformer used to
detect ground-fault current. (5 A primary)
140 mm
(5.50")
PGR-5701
PGR-6200
PGR-6300
PGR-7200
PGC-31FC
Flux Conditioner
Fits in the PGC-3082 window to reduce
saturation and prevent false operation due
to large surge currents.
70 mm
(2.75") PGC-3082
PGC-4064
Current Sensor Detects ground-fault current. 64 mm
(2.50") PGM-8134
PGC-4108
Current Sensor Detects ground-fault current. 108 mm
(4.25") PGM-8134
PGC-4160
Current Sensor Detects ground-fault current. 160 mm
(6.31") PGM-8134
PGC-4210
Current Sensor
Detects ground-fault current. 210 mm
(8.25") PGM-8134
PGC-5025
Ground-Fault Current
Transformer
Current Transformer for low-level
ground-fault situations, flux conditioner
is standard. (30 A primary)
25 mm
(0.98")
PGR-4704
PGR-5330
PGR-5701
PGR-6100
PGR-6200
PGR-6300
PGR-7200
PGC-5060
Ground-Fault Current
Transformer
Current Transformer for low-level
ground-fault situations, flux conditioner
is standard. (30 A primary)
60 mm
(2.36")
PGR-4704
PGR-5330
PGR-5701
PGR-6100
PGR-6200
PGR-6300
PGR-7200
PGC-5095
Ground-Fault Current
Transformer
Current Transformer for low-level
ground-fault situations, flux conditioner
is standard. (30 A primary)
95 mm
(3.74")
PGR-4704
PGR-5701
PGR-6100
PGR-6200
PGR-6300
PGR-7200
PGC-5130
Ground-Fault Current
Transformer
Current Transformer for low-level
ground-fault situations, flux conditioner
is standard. (30 A primary)
130 mm
(5.12")
PGR-4704
PGR-5701
PGR-6100
PGR-6200
PGR-6300
PGR-7200
PGC-5200
Ground-Fault Current
Transformer
Current Transformer for low-level
ground-fault situations, flux conditioner
is standard. (30 A primary)
200 mm
(7.87")
PGR-4704
PGR-5701
PGR-6100
PGR-6200
PGR-6300
PGR-7200
