PUB 50411
D64RP18 SERIES B1 DIGITAL GROUND FAULT RELAY
Revision 2
May, 2005
Page 10
C311CT8
Zero sequence current transformer, 1.1" window
C311CT1
Zero sequence current transformer, 1.8" window
C311CT9
Zero sequence current transformer, 2.56" window
C311CT2
Zero sequence current transformer, 3.5" window
C311CT5
Zero sequence current transformer, 5.7" window
C311CT6
Zero sequence current transformer, 9.45" window
C311CT3
Split core zero sequence current transformer, 5.9" x 6.7" window
C311CT4
Split core zero sequence current transformer, 4" x 13.8" window
For mounting dimensions and additional information on C311CT current transformers refer to the
current Eaton’s Cutler-Hammer catalog.
5.
TECHNICAL SPECIFICATION
Control Voltage (non-isolated)............................................................................. 24 – 240 Volts ac or dc
Power consumption .................................................... proportional to voltage: 0.15 W @ 24 V ac/dc
1.5 W @ 240 V ac/dc
Operating voltage tolerance............................................. 80% to 110% of rated voltage 24 -32 V ac
55% to 110% of rated voltage 32 – 240 V ac
80% to 110% of rated voltage 24 – 240 V dc
Under voltage tolerance (no impaired operation) ................. withstands loss of supply up to 100 ms
Power Up Time ....................................................................................................... 500 milliseconds
Maximum System Voltage & Frequency..........................................................660 Volts ac, 45 to 450 Hz
The D64RP18 may be applied on higher voltage circuits providing an external current transformer is
used and the power conductors are insulated for the system voltage.
Output Relay:
Contacts:
Maximum UL rating:
5 A @ 250 Vac, general use
5 A @ 30 Vdc, resistive
1/8 hp, 250 Vac
2 A, 250 VA, @ 125 Vac, pilot duty
1 A, 250 VA, @ 250 Vac, pilot duty
0.88 A, 26.4 VA, @ 30 Vdc, pilot duty
EN 60947-5-1 rating:
5 A @ 250 Vac, Utilization category AC-12
4 A @ 250 Vac, Utilization category AC-13
3 A @ 250 Vac, Utilization category AC-14, AC15
5 A @ 30 Vdc, Utilization category DC-12
3 A @ 24 Vdc, Utilization category DC-13
Maximum fusing under EN 60947-5-1: ............................................................ 13 A
Isolation voltage ........................................................... 3 kV rms, 50-60 Hz, 1 min.
Between open contacts................................................. 1 kV rms, 50-60 Hz, 1 min.
Between contact sets .................................................... 2 kV rms, 50-60 Hz, 1 min.
Configuration........................Voltage free form "Z" 1 N.O. and 1 N.C. (4 terminals)
Operating Mode (Selected by connections on terminals R1 and R2).................................Non-Failsafe
Pulsed Auto Reset
Functional Test:
