SE-134C Datasheet, PDF (1/1 Pages) Littelfuse – The SE-134C/SE-135 is a microprocessor-based

Protection Relays & Controls
Trailing Cable Protection–Ground-Fault Ground-Check Monitoring
SE-134C, SE-135 SERIES
Ground-Fault Ground-Check Monitor
Simplified Circuit Diagram
GROUNDED
SUPPLY
CT _A
TRAILING
A
CABLE
B
C
GC
G
SE-134C SERIES
SE-135 SERIES
L1
(Ground-Fault
L2
Ground-Check
Monitor)
M
TERMINATION
DEVICE
B
Ordering Information
ORDERING
NUMBER
SE-134C
SE-135
OPTION
Blank or
XGC
Blank or
XGC
POWER SUPPLY
0=120/240
Vac/Vdc
1=24/48 Vdc ⁽¹⁾
0=120/240
Vac/Vdc
1=24/48 Vdc ^{(1) (2)}
COMM
0=None
0=None
3=Ethernet ⁽¹⁾
ACCESSORIES
REQUIREMENT
SE-CS10 Series
Required
SE-CS40 Series (for SE-135)
Optional
SE-TA6A Series (for SE-134C) Required
SE-TA12A/SE-TA12B
Combination (for SE-134C)
Optional
SE-TA12A Series (for SE-135) Required
SE-IP65CVR-G
Optional
RK-132
Optional
PPI-600V
Optional
(1) CE/C-Tick not available.
(2) Not available with Ethernet option 3.
(3) See ordering information.
See Current Transformer Selection Guide and Accessory Information.
© 2014 Littelfuse Protection Relays & Controls
Littelfuse.com/se-134c, Littelfuse.com/se-135
Description
The SE-134C/SE-135 is a microprocessor-based, combination
ground-wire monitor and ground-fault relay for resistance-
grounded or solidly grounded systems. It continuously
monitors the integrity of the ground conductor to protect
portable equipment from hazardous voltages caused by ground
faults. The SE-134C/SE-135 is field proven in monitoring trailing
cables on large mobile equipment such as drag-lines, mining
shovels, shore-to-ship power cables, dock-side cranes, stacker-
reclaimers, submersible pumps, and portable conveyors.
Features & Benefits
FEATURES
Adjustable pickup
(0.5 - 12.5 A for SE-CS10)
(2 - 50 A for SE-CS40)
BENEFITS
Unit can be used on a wide variety of trailing cable
applications
Adjustable time delay
(0.1 - 2.5 s)
Output contacts
Ground-check
LED indication
Adjustable trip delay for quick protection and system
coordination
Separate annunciation of ground-fault and ground-
check faults
Indication of open or short ground-check wire
makes it easier to find faults
CT-loop monitoring
Alarms when CT is not connected
High-induced-ac
rejection
Makes unit suitable for applications with high
voltages and long cables
DFT (Harmonic) filter Prevents false operation
Zener-characteristic
termination assembly
Provides reliable ground-check loop verification
Fail-safe circuits
Ensures ground-check and ground-fault circuits
remain safe even in the event of equipment failure
Conformal coating
XGC option
Additional coating protects circuit boards against
harsh environment
Increases maximum cable length for ground-check
monitoring (10 km typical)
Accessories
A
SE-CS10 or SE-CS40 Series Ground-Fault
Current Transformer
Required zero-sequence current transformer
detects ground-fault current.
B
SE-TA6A Series, SE-TA12A Series
Termination Assembly
Required termination assembly; temperature
compensated.
Specifications
IEEE Device Numbers
Checking or Interlocking Relay (3GC),
Ground fault (50G/N, 51G/N)
Input Voltage
65-265 Vac; 85-275 Vdc; 18-72 Vdc
Dimensions H 213 mm (8.4"); W 99 mm (3.9"); D 132 mm (5.2");
Trip Level Settings
0.5 -12.5 A for SE-CS10, 2 - 50 A for SE-CS40
Trip Time Settings
0.1-2.5 s
Contact Operating Mode Selectable fail-safe or non-fail-safe
Harmonic Filtering
Standard feature
Test Button
Standard feature
Reset Button
Standard feature
Output Contacts
Isolated Form A and Form B, Two Form C
Approvals
CSA certified, UL Listed (E340889),
C-Tick (Australia)⁽³⁾, CE⁽³⁾
Conformally Coated
Standard feature
Warranty
5 years
Mounting
Panel, Surface
GC Trip Resistance
28Ω (Standard), 45Ω (XGC Option)
Rev: 4-D-102214
SE-134C Based on Manual Rev: 7-C-100114
SE-135 Based on Manual Rev: 3-C-100314