SE-601 Datasheet, PDF (1/1 Pages) Littelfuse – The SE-601 is a microprocessor-based ground-fault

Protection Relays & Controls
Ungrounded DC System
SE-601 Series (PGR-2601)
DC Ground-Fault Monitor
Simplified Circuit Diagram
+
UNGROUNDED
SUPPLY
A
SE-GRM SERIES
GROUND-REFERENCE
MODULE
-
SE-601
(DC Ground-Fault Monitor)
L1
L2
Ordering Information
Ordering Number
SE-601-OU
SE-601-OD
SE-601-OT
CONTROL POWER
120/240 Vac/Vdc
12/24 Vdc
48 Vdc
accessories
SE-GRM SERIES
PGA-0500
PMA-55
PMA-60
Requirement
Required
Optional
Optional
Optional
Note: For optional conformal coating please consult factory.
© 2013 Littelfuse Protection Relays & Controls
Littelfuse.com/se-601
Description
The SE-601 is a microprocessor-based ground-fault relay for
ungrounded dc systems. It provides sensitive ground-fault
protection without the problems associated with nuisance
tripping. Ground-fault current is sensed using an SE-GRM
Series Ground-Reference Module—a resistor network that
limits ground-fault current to 25 mA. The SE-601 is used
on ungrounded dc systems ranging from industrial 24-Vdc
control circuits to 1000-Vdc solar and transportation systems.
Features & Benefits
Features
Adjustable pickup
(1 - 20 mA)
Adjustable time delay
(50 ms - 2.5 s)
Output contacts
Analog output
(0 - 5 V)
Non-volatile trip
Memory
Selectable contact
operating mode
BENEFITS
Ten settings provide a wide range of
low-level protection
Adjustable trip delay allows quick protection or
delayed response
Form A and Form B output contacts for operation of
separate annunciation and trip circuits
Provides means for connecting to a meter
(PGA-0500) or a control system
Retains trip state when de-energized to simplify
troubleshooting
Selectable fail-safe or non-fail-safe operating
modes allow connection to shunt or undervoltage
breaker coil
Microprocessor based No calibration required saves on maintenance cost
Accessories
A
SE-GRM Series Ground-Reference Module
Required accessory, used to connect the
SE-601 DC Ground-Fault Monitor to the
DC bus.
PGA-0500 Analog % Current Meter
Optional panel-mounted analog meter displays
ground-fault current as a percentage of 22 mA.
Specifications
IEEE Device Numbers DC Overcurrent Relay (76G)
Input Voltage
See ordering information
Dimensions  H 75 mm (3.0”); W 55 mm (2.2”); D 115 mm (4.5”)
Trip Level Settings
1-20 mA
Trip Time Settings
0.05 -2.5 s
Output Contacts
Isolated Form A and Form B
Contact Operating Mode Selectable fail-safe or non-fail-safe
Test Button
Local
Reset Button
Local and remote
Analog Output
0-5 V
Conformally Coated
Consult factory
Approvals
CSA certified, UL Listed (E340889),
CE (European Union), C-Tick (Australian)
Warranty
5 years
Mounting
DIN, Surface (standard)
Panel (with PMA-55 or PMA-60 adapter)
Rev: 4-C-050213
Based on Manual Rev 2-A-041913