Accessories
Current Transformers
SE-CS30 SERIES
Current Sensor
Description
The SE-CS30 series is a sensitive nickel-core current
transformer used with Littelfuse relays to detect low levels of
earth-leakage current.
Specifications
Turns Ratio
Current Rating
Accuracy
Frequency
Insulation Level
Operating Temperature
Application
Certification
Compliance
600:1
30:0.05 A
3% @ 0.06 VA
50-400 Hz
600 V
-55 to 60ºC (-67 to 140ºF)
FPU-32, FPS, MPU-32, MPS, PGR-6100,
PGR-6101, SE-330, SE-701, SE-704
CSA, UL, CE
RoHS, IEC 60044-1
50.0
SECONDARY EXCITING VOLTAGE (VOLTS)
10.0
5.0
Ordering Information
ORDERING NUMBER
WINDOW SIZE, ID
WEIGHT
SE-CS30-26
SE-CS30-70
SE-CS30-4
(1)
SE-CS30-5
(1)
SE-CS30-8
(1)
NOTES: (1) CE only.
26 mm (1.0”)
70 mm (2.8”)
95 mm (3.7”)
140 mm (5.5”)
200 mm (7.9”)
0.5 kg (1.0 lb)
1.2 kg (2.5 lb)
1.3 kg (3.0 lb)
2.1 kg (4.6 lb)
4.3 kg (9.4 lb)
1.0
0.1
0.01
10.0 20.0 30.0
0.05
0.1
1.0
SECONDARY EXCITING CURRENT (MILLIAMPERES)
SE-CS30-70
SE-CS30-26
SE-CS30-4
SE-CS30-5
SE-CS30-8
© 2015 Littelfuse Protection Relays & Controls
www.littelfuse.com/se-cs30
Rev: 1-A-111215
Accessories
Current Transformers
SE-CS30 SERIES
Dimensions and Mounting Diagram
SE-CS30-26
17.0
(0.67)
68.0
(2.68)
68.0
(2.68)
34.0
(1.34)
M5 SCREWS
52.5
(2.07)
42.6
(1.68)
26.5
(1.04)
M4 OR 8-32 TAP
110.0 MAX
TOP
(0.43)
25.0
(0.98)
MOUNTING DETAIL
26.5
(1.04)
C UR R EN T S EN S OR
R
SE-C S3 0 -2 6
R
LR53428
C
US
72.0
(2.83)
4.0 (0.16) Ø
26
.0
.
(1
)
02
RECESSED FOR
7-mm HEX NUT
3.0 (0.12) DEEP
34.0
(1.34)
58.0
(2.28)
5.0
(0.20)
(0.87)
7.0
5.0
(0.20)
52.5
(2.07)
FRONT
NOTES:
SIDE
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. PRESS MOUNTING FEET IN PLACE USING
INSTALLATION TOOL PROVIDED (DETAIL ‘A’).
MOUNTING FOOT
INSTALLA TION
TOOL
3. MOUNTING SCREWS: M4 OR 8-32.
4. RoHS COMPLIANT.
5. EN 60044-1 COMPLIANT.
DETAIL ‘A’
© 2015 Littelfuse Protection Relays & Controls
www.littelfuse.com/se-cs30
Rev: 1-A-111215
Accessories
Current Transformers
SE-CS30 SERIES
Dimensions and Mounting Diagram
SE-CS30-70
20.5
(0.81)
121.0
(4.76)
121.0
(4.76)
80.0
(3.15)
30.0
(1.18)
M5 SCREWS
56.0
(2.21)
46.0
(1.81)
NOTE 3
TOP
25.0
(0.98)
MOUNTING DETAIL
30.0
(1.18)
CURRENT SENSOR
R
SE-CS30-70
LR 53428
R
C
US
138.0 MAX
(5.43)
(2.7
8
Ø 5.0 (0.20)
RECESSED FOR
8-mm HEX NUT
1.0 (0.04) DEEP
(0.87)
5)
5.5
(0.22)
110.0
(4.33)
5.5
(0.22)
22.0
56.0
(2.21)
FRONT
SIDE
MOUNTING FOOT
INSTALLATION
TOOL
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. PRESS MOUNTING FEET IN PLACE USING
INSTALLATION TOOL PROVIDED (DETAIL ‘A’).
3. MOUNTING SCREWS: M4 OR 8-32.
4. RoHS COMPLIANT.
5. EN 60044-1 COMPLIANT.
DETAIL ‘A’
© 2015 Littelfuse Protection Relays & Controls
www.littelfuse.com/se-cs30
(4.96)
126.0
69.
Rev: 1-A-111215
Accessories
Current Transformers
SE-CS30 SERIES
Dimensions and Mounting Diagram
SE-CS30-4, SE-CS30-5, and SE-CS30-8
J
H
C
D
G
50.0
(1.97)
MOUNTING DETAIL
NOTES:
14.0
(0.55)
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. MOUNTING SCREWS: M5 OR 10-32.
TOP (COVER REMOVED)
72.0
(2.83)
SE-CS30-8
OUTLINE
3. RoHS COMPLIANT.
4. CE COMPLIANT.
DIMENSIONS
B
A
SE-CS30-4
SE-CS30-5
130.0 (5.12)
SE-CS30-8
200.0 (7.87)
A
B
95.0 (3.74)
175.0 (6.89) 218.0 (8.78) 309.0 (12.17)
158.0 (6.22) 203.0 (7.99) 290.5 (11.44)
E
FLUX
CONDITIONER
C
D
141.0 (5.55) 178.0 (7.01) 267.5 (10.50)
E
82.0 (3.22)
32.0 (1.26)
17.5 (0.69)
15.0 (0.59)
33.0 (1.30)
9.0 (0.35)
40.0 (1.57)
5.3 (0.21)
103.5 (4.07) 150.0 (5.90)
32.0 (1.26)
11.0 (0.43)
13.3 (0.52)
34.0 (1.34)
11.0 (0.43)
40.0 (1.57)
7.0 (0.28)
34.0 (1.34)
11.0 (0.43)
13.3 (0.52)
43.0 (1.69)
11.5 (0.45)
50.0 (1.97)
7.0 (0.28)
FRONT
1.7
(0.07)
F
G
H
G
I
K
I
L
D
C
J
J
K
L
BOTTOM
© 2015 Littelfuse Protection Relays & Controls
www.littelfuse.com/se-cs30
Rev: 1-A-111215
F
