Startco Engineering Ltd.
Page 13
SE-325 Neutral-Grounding-Resistor Monitor
Rev. 1
Pub. SE-325-M, May 6, 2008.
Resistor-Fault Circuit:
Neutral-To-Ground
Trip Voltage (V
N
) .................20 to 2,000 Vac Adjustable
NGR Trip Resistance, V
N
= 0
ER-600VC or ER-5KV
.....2 k
Ω
ER-15KV or ER-25KV
....6 k
Ω
,
50
k
Ω
with Option S
Neutral-To-Ground
DC-Voltage
Rejection:
ER-600VC or ER-5KV ..1.2 V
ER-15KV or ER-25KV ..0.7 V, 4 V with Option S
Trip-Resistance Accuracy ....+5, -2% of Sensing
Resistor
Resistance
Trip Time ..............................5 ± 0.5 s,
20 ± 3 s with Option S
Operating
Mode....................Latching,
Non-latching
with
Option
N
Output Relay:
CSA/ULContact Rating........1 mA to 4 A Resistive,
240 Vac or 28 Vdc
Supplemental Contact Ratings:
Make/carry 0.2 s..............10 A
Carry continuous.............4 A
Break:
dc................................20 W resistive,
10 W inductive
(L/R = 0.04 s)
ac................................960 VA resistive,
700 VA inductive
(PF = 0.4)
Subject to maximums of 4 A and 240 V (ac or dc)
Contact Configuration ..........N.O. (Form A)
Fuse Rating (F1) ...................4.0 A, 250 Vac,
Time
Delay
Fuse Part Number .................Bussman MSL-4 or
Littelfuse
313.004
Operating Mode ...................UV (Fail-Safe) or
SH
(Non-Fail-Safe)
Remote Indication:
+.............................................12
Vdc
GI/RI .....................................Current
Sink,
560
Ω
Internal
Optional RK-13 Module:
Contact Ratings ..................100 mA, 120 Vac
Contact Configuration ........N.O. (Form A)
Reset Input .........................24 to 120 V (ac or dc),
Isolated
PWB Conformal Coating......... MIL-1-46058 qualified,
UL QMJU2 recognized
4.2 S
ENSING
R
ESISTORS
ER-600VC:
Maximum Voltage .......... 600 Vac
Maximum Current........... 30 mA
Resistance ....................... 20
k
Ω
Thermal:
420 Vac ...........................Continuous
600 Vac ...........................6 minutes on,
60 minutes off
Shipping Weight ................300 g (0.7 lb)
ER-5KV:
Maximum Voltage .......... 2,500 Vac
Maximum Current........... 125 mA
Resistance ....................... 20
k
Ω
Thermal ..............................Continuous
Shipping Weight ................5.0 kg (11 lbs)
ER-15KV:
Maximum Voltage .......... 8,400 Vac
Maximum Current........... 84 mA
Resistance ....................... 100
k
Ω
Thermal ..............................1 minute on,
120 minutes off
Shipping Weight ................5.0 kg (11 lbs)
ER-25KV:
Maximum Voltage .......... 14,400 Vac
Maximum Current........... 144 mA
Resistance ....................... 100
k
Ω
Thermal ..............................1 minute on,
120 minutes off
Shipping Weight ................20 kg (44 lbs)
4.3 C
URRENT
T
RANSORMER
CT200:
Current Ratio................... 200:5 A
Insulation ........................ 600-V
Class
Window Diameter........... 56 mm (2.2”)
Shipping Weight ............. 1 kg (2.2 lbs)
Certification ........................ CSA, Canada and USA
LR 53428
US
C
R
Australia
Commonwealth
of
Pennsylvania
SE-325........ BOTE
1767-99
SE-325P...... BOTE 1797-00