1. Application
GSB2 Series of Miniature Circuit Breaker are mainly used in the electrical circuit with AC frequency 50Hz or 60Hz, rated voltage up to 415V, rated current up to 63A and below to protect the circuit equipments or devices and the similar purposes, it also has isolation functions. The breakers can be matched with accessories such as the auxiliary contacts, the alarming contacts, shunt trip etc. So as to supply the auxiliary signals or realize its remote breaking functions.
2. Stands and certification
Conform to the following standers: IEC60898-1, GB10963.1.
The products are all through the CCC certification, the EU CE safety certification and CB certification.
3. Type
4. Working condition and installation condition
3. Type
|
Instantaneous release type
|
Applicable
|
|
C
|
Normal load and distribution lines to protect the cable
|
|
D
|
Protection starting current of the impact load, such as motor
|
|
Type
|
Instantaneous
release type
|
Pole
|
Rated current
|
|
GSB2
|
C, D
|
1P, 2P, 3P, 4P
|
1, 3, 6, 10, 16, 20,
25, 32, 40, 50, 63
|
Environment temperature : -5℃～+40℃, the average hours of temperature exceeding +35℃ during 24 hours.
Elevation: ≤ 2000m
No exceeding 50% at the maximum ambient temperature of 40℃. With lower temperature, higher humidity would be permitted, for example , with temperature 20℃, the humidity can exceed 90%. Take the special measure to the dews on the surface, which would appear due to temperature change
Pollution protection: Grade 2
Products should be used in no significant impact and vibration place.
Installing categories: Class Ⅲ
Installing condition: mounted by TH35-7.5 standard rail track.
5. Main technical parameters
5. Main technical parameters
|
type
|
GSB2
|
|
|
Instantaneous release type
|
C , D
|
|
|
Ue
Rated work voltage
|
1P
|
240 V
|
|
2P, 3P, 4P
|
415 V
|
|
|
lnm
Frame rated current
|
63 A
|
|
|
lnm
Breaking capacity of rated short-circuit
|
6000 A
|
|
|
Uimp
Rated impulse with stand voltage
|
4 kV
|
|
|
Machine life span
|
20000
|
|
|
Protection grade
|
IP20
|
|
|
wiring capacity
|
1～25mm2
|
|
|
No.
|
Instantaneous release type
|
Ln
Rated current
|
Initial state
|
A
Testing current
|
T
Order time
|
Expectancy ending
|
Benchmark temperature
|
note
|
|
a
|
C, D
|
ln≤ 63 A
|
cold state
|
1.13ln
|
t≤ 1h
|
not release
|
30℃
|
|
|
b
|
C, D
|
ln≤ 63 A
|
Following the test a
|
1.45ln
|
t< 1h
|
release
|
After Following the test a, testing current improve to order value in 5s
|
|
|
c
|
C, D
|
ln≤ 32 A
|
cold state
|
2.55ln
|
1s< t< 60s
|
release
|
|
|
|
ln > 32 A
|
1s< t< 120s
|
|||||||
|
d
|
C
|
ln≤ 63 A
|
cold state
|
5ln
|
t≤ 0.1s
|
not release
|
-
|
Through close auxiliary switch and put through current
|
|
D
|
cold state
|
10ln
|
||||||
|
e
|
C
|
ln≤ 63 A
|
cold state
|
10ln
|
t< 0.1s
|
release
|
-
|
Through close auxiliary switch and put through current
|
|
D
|
cold state
|
14ln
|