Page 18
SE-330
Neutral-Grounding-Resistor
Monitor
Rev.
9-A-112913
MINIMUM DISTANCE
TO ADJACENT OBJECTS
.
.
. . . . . . .
R
G
CAUTION
HIGH VOLTAGE
N
VO L TAGE AT TERM IN AL N RISES
TO LI NE-TO -N EUTRAL VO LT AGE
WHEN A GR OUND FAULT O CCURS
C A U T I O N
H I G H V O LT A G E
E R - 2 5 KV
SENSING RESISTOR
100 K
Ω
14,400 VAC MAX
1 M I N UTE MAX
144.0
(5.67)
NOTES 2 AND 4
20.5
(0.81)
0.25-20 BINDING HEAD
780.0
(30.70)
RATINGS:
MAXIMUM VOLTAGE 14,400 Vac
MAXIMUM CURRENT 144 mA
RESISTANCE
100 k
Ω
TOP
320.0
(1
2.60)
FRONT
SIDE
60.0
(2.40)
800.0
(31.50)
340.0
(13.38)
340.0
(13.38)
534.0
(21
.0
0)
21
7.
0
(8.50)
10
0.0
(3.94)
NOTE 3
MINIMUM CLEARANCE FROM BASE
508.0 (20.00)
MOUNTING DETAIL
NOTES:
1. DIMENSIONS IN
MILLIMETRES (INCHES).
2. TERMINAL-BLOCK SCREWS:
6-32 x 0.25.
3. MOUNTING SCREWS:
M6 OR 0.25-20
4. USE LIQUID-TIGHT FITTING
FOR TERMINAL-BLOCK-
ENCLOSURE CABLE ENTRY.
5. MOUNT AS SHOWN
WITH BASE HORIZONTAL.
6. CERTIFICATIONS NOT SHOWN.
TORQUE
TERMINAL N
. . . . .
9.0 N-m (80 in-lb)
. .
. . . . . . . . .
THERMAL
1 MINUTE ON,
120 MINUTES
OFF
CONTINUOUS
14,400 Vac
2,500 Vac
. . . . . . . . .
FIGURE 14. ER-25KV Sensing Resistor.
