Littelfuse PGR-4300 (GFA300) Series - Manual

Protection Relays & Controls
© 2013 Littelfuse Protection Relays & Controls
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Generator & Single-Function Protection–Ground Fault
PGR-4300 SeRieS (GFA300)
Generator Ground-Fault Relay
ORdeRinG numbeR cOntROl POweR
PGR-4300-12 12 Vdc
PGR-4300-24 24 Vdc
PGR-4300-120 120 Vac
Description
The PGR-4300 Generator Ground-Fault Relay provides
a simple method for detecting a ground-fault condition
on generators without the need for current transformers
(CTs). This greatly simplifies the installation. In addition,
it is compatible with both three- and four-pole transfer
switches. This relay also monitors the neutral-to-ground path
for continuity. The PGR-4300 is ideal for any generator or
application where there is not sufficient space to install CTs.
Ordering Information
Simplified Circuit Diagram
FeAtuReS beneFitS
No CTs required Saves space and simplifies installation
Adjustable pickup
(100 - 1200 A)
Adjustable trip setting provides a wide range of
protection and allows system coordination
Adjustable time delay
(0 - 1.0 s)
Adjustable trip delay allows quick protection and
system coordination
Output contacts
Form C ground-fault output contacts for alarming
or tripping purposes
Analog output
(0 - 1 mA)
Provides means for connecting to an optional
meter (PGA-0500) or control system
N-G continuity alarm
Monitors neutral-to-ground integrity and alarms if
ground path becomes open circuit
Passive filtering Eliminates nuisance tripping
Features & Benefits
PGA-0500 Analog % Current Meter
Optional panel-mounted analog meter
displays ground-fault current as a
percentage of the set-point.
Accessories
AcceSSORieS RequiRement
PGA-0500 Optional
PMA-55 Optional
PMA-60 Optional
Note: For optional conformal coating please consult factory.
Specifications
IEEE Device Numbers Ground Fault (50G/N, 51G/N)
Input Voltage See ordering information
Dimensions H 75 mm (3.0”); W 55 mm (2.2”); D 115 mm (4.5”)
Trip Level Settings 100-1200 A
Trip Time Delay Settings 0-1.0 s
Contact Operating Mode Non-fail-safe
Test Button Local
Reset Button Local and remote
Output Contacts Form C
Approvals UL Listed
Analog Output 0-1 mA
Conformally Coated Consult factory
Warranty 5 years
Mounting DIN, Surface (standard)
Panel (with PMA-55 or PMA-60 adapter)
PGR-4300
L2
L1 (Generator
Ground-Fault Relay)
G
Rev: 4-A-050213
Based on Manual Rev 3