Startco Engineering Ltd. Page 7
SE-325 Neutral-Grounding-Resistor Monitor Rev. 7
Pub. SE-325-M, May 6, 2008.
355.6
254.0
127.0
457.0
50.7
(14.00)
(10.00)
(5.00)
(18.00)
(2.00)
MINIMUM DISTANCE
TO ADJACENT OBJECTS
MOUNTING DETAIL
NOTE 3
NOTES:
1.
2.
3.
4.
DIMENSIONS IN MILLIMETRES (INCHES).
TERMINAL-BLOCK SCREWS: 6-32 x 0.25.
MOUNTING SCREWS: M6 OR 0.25-20.
THIS DEVICE CAN DISSIPATE
300 WATTS. TO MINIMIZE SURFACE
TEMPERATURES FOR SYSTEMS
ALLOWED TO OPERATE
CONTINUOUSLY WITH A GROUND
FAULT, MOUNT VERTICALLY WITH
R & G TERMINALS DOWN.
ON REVISION 2 UNITS BASE IS
ELECTRICALLY CONNECTED TO
TERMINAL G THROUGH JUMPER
FROM TERMINAL G TO SCREW.
THIS CONNECTION MAY BE
REMOVED FOR DIELECTRIC
STRENGTH TESTING. ENSURE
THAT THE JUMPER IS INSTALLED
AFTER TESTING.
ON REV 0 & 1 UNITS SCREW IS NOT
PRESENT AND BASE IS ELECTRICALLY
CONNECTED TO TERMINAL G.
316.0
GR
188.0
(12.44)
(7.40)
FRONT VIEWSIDE VIEW
0.25-20 UNC STUD
VOLTAGE ON THIS SURFACE RISES
TO LINE-TO-NEUTRAL VOLTAGE
WHEN A GROUND FAULT OCCURS
N
CAUTION
HIGH VOLTAGE
STARTCO
ENGINEERING LTD.
MADE IN SASKATOON, CANADA
ER-5KV
SENSING RESISTOR
20 K
2500 VAC MAX
W
381.0
21.0
12.0
105.0
7.9
52.5
(15.00)
(0.83)
(0.47)
(4.13)
(0.31)
(2.07)
NEUTRAL CONNECTION
ALTERNATE NEUTRAL CONNECTION
TOP VIEW
0.25-20 UNC
THREADED
INSERT
10-32 THREADED
INSERT
RATINGS:
MAXIMUM VOLTAGE . 2,500 Vac
MAXIMUM CURRENT . 125 mA
RESISTANCE .......20k
THERMAL ..........CONTINUOUS
W
5.
MINIMUM CLEARANCE FROM BASE
254.0 (10.00)
NOTES 5 & 6
NOTE 2
6.
FIGURE 5. ER-5KV Sensing Resistor.
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