Arcing Ground Fault Detection System

Bulletin 1409
Arcing Ground Fault Detection System
Specifications
Technical Data
Response Time
50 ms nominal plus the controller drop-out time
Supply Voltage
120V AC, 60 Hz
Power Input
3VA
Temperature Range
The operating ambient temperature range for the sensor is –40…+85°C (–40…+184°F) and for the relay
is 0…+65°C (+32…+149°F)
Output Contact Rating
Make 30 A; Break 3 A; Continuous carrying current 5 A at 120V
Typical Wiring Diagrams
See Applicable Codes and Laws.
Class II with High Current Inhibit Circuit ➊
Ground Fault Relay
Internal Circuit
Breaker
On
To Disconnect &
Source of Power
Pilot
Device
M
NC
Off
Load
NC
Ind.
C
Light
C
Line
L1
L2
L3
M
M
OL ’s
N0
N0
L1
M
To
Source of
120V, 60Hz
Control
Voltage
OL's
L2
Test
Winding
CT4
CT4
CT3
CT3
GND
Internal
Printed Circuit
Operate
Winding
CT2
CT2
CT1
CT1
Ground
Fault
Sensor
Internal
Coil Clearing
Contact
Class I without High Current Inhibit Circuit ➊
Motor
Source
of
Power
Circuit
Breaker
Ground Fault Relay
Internal Circuit
Breaker
On
Off
Load
N0
N0
NC
NC
C
Line
C
L1
L2
Test
Winding
To
120V,
60Hz
Shunt
Trip
Power
Source
Motor
Controller
Contacts
CT4
CT4
CT3
CT3
GND
Internal
Printed Circuit
Operate
Winding
Typical when used with
shunt trip circuit breaker
➊ Wiring diagrams are shown in the tripped condition.
5-32
CT2
CT2
CT1
CT1
Ground
Fault
Sensor
Motor
Bulletin 1409
Arcing Ground Fault Detection System
Approximate Dimensions
Dimensions are shown in millimeters (inches). Dimensions are not intended to be used for manufacturing purposes.
Arcing Ground Fault Relay
4.8(3/16)
89(3-/12)
111(4-3/8)
79.5 (3-1/8)
20(25/32)
114 (4-1/2)
154(6-1/16)
Use (4) #8–32 Screws for Mounting
Arcing Ground Fault Sensors
4 Holes
10.3
(13/32) Dia.
A
K
4 Closed
Slots 12.7(1/2) x
5.6 (7/32)Dia.
(1409–N2 Only)
J
C
C
E B
F
4 Open Slots
11.9 (15/32)
X
5.6 (7/32)
For
#10 Screws
F
A
E
H Dia.
D
B
F
G
4 Open Slots
Cat. No.1409-N1: 12.7 (1/2) x 7.1 dia.(9/32)
Cat. No.1409-N2: 12.7 (1/2) x11.1dia.(7/16)
H Dia.
D
G
Cat. No.1409-N3
Cat. No.1409-N4
Cat. No.
A
B
C
D
E
F
G
H
J
K
1409-N1
92.6
(3-21/32)
88.9
(3-1/2)
104
(4-3/32)
74
(2-15/16)
67.3
(2-21/32)
56.4
(2-7/32)
92.9
(3-21/32)
39.6
(1-9/16)
—
—
1409-N2
91.4
(3-19/32)
115.8
(4-9/16)
131.8
(5-3/16)
77
(3-1/32)
88.9
(3-1/2)
88.9
(3-1/2)
120.6
(4-3/4)
63.5
(2-1/2)
69.8
(2-3/4)
54.9
(2-5/32)
1409-N3
73.2
(2-7/8)
144
(5-11/16)
157.2
(6-3/16)
54.9
(2-5/32)
96.8
(3-13/16)
119.4
(4-23/32)
146.1
(5-3/4)
82.6
(3-1/4)
—
—
1409-N4
77.2
(3-1/32)
169.9
(6-11/16)
182.6
(7-3/16)
59.5
(2-11/32)
123.7
(4-7/8)
138.2
(5-7/16)
171.5
(6-3/4)
108
(4-1/4)
—
—
5-33