SE-400 Datasheet, PDF (1/1 Pages) Littelfuse – The SE-400 is a ground-fault-relay test unit designed

PArcocteescstoiornieRselays & Controls
Relay Testers
SE-400 SERIES
Ground-Fault-Relay Test Unit
Simplified Circuit Diagram
Description
The SE-400 is a ground-fault-relay test unit designed to test
current pickup level, time delay and coordination of ground-
fault protection.
The tester injects current through the window of installed
ground-fault current transformers to verify the operation of
ground-fault monitors and relays.
It is used on substations, motor control centers (MCCs),
central distribution panels, switchboards, and test benches to
verify relay operation.
The SE-400 tests the entire ground-fault circuit including
current transformers, wiring, ground-fault relay and the
operation of the interrupting device. It is recommended to
test every relay and its current interrupting device annually.
Features & Benefits
FEATURES
Adjustable Current
Setpoint
Adjustable Time
Duration Setpoint
Small Form Factor
BENEFITS
Current range is 0.5 to 9.9 A
Duration range is 0.1 to 9.9 s, or continuous
output
Lightweight and compact for portability
Remote Test Input
Allows test to be initiated from another
location
Ordering Information
ORDERING NUMBER
SE-400
CONTROL POWER
120 Vac
Specifications
Input Voltage
84-134 Vac, 50/60 Hz, 80 VA
Dimensions  H 219 mm (8.6”);
W 99 mm (3.9”);
D 143 mm (5.6”)
Output Current Settings
0.5-9.9 A
Output Duration Settings 0.1-9.9 s or continuous
Output Voltage
5.0 Vac maximum
Conformally Coated
Standard feature
Warranty
5 Year
Mounting
Surface, Panel
© 2015 Littelfuse Protection Relays & Controls
Rev: 4-A-0580135135
Based on MBaansueadl oRnevM: 1a-nAu-a0l7R2e1v115