1. Application
GSM8-32 series of motor protection breaker (abbr. Breaker) is mainly used in the circuit of AC 50 (or 60Hz), rated operating voltage 415V and rated operating current 0.1-32A for overload, short circuit and unbalanced three phase protection of three-phase motor as well as unfrequented starting and breaking during operation. It can be also used as isolator.
2. Conform standards and certification
This breaker use module design and can conveniently added auxiliary contact, alarm contact, under-voltage release and shunt release ect..
This product complies with the demands of the following standards:
GB14048.2 Low-voltage Switchgear and control gear low-voltage breaker
GB14048.3 low-voltage switchgear and control gear Switchgear, Isolation, Separated Switch And Fuse Combination Apparatus
GB14048.4 Low-voltage switchgear and control gear
Low-voltage mechanical breaker and motor starter
Through the CCC certification, the EU CE safety certification.
3. Working condition and installation condition
Environment temperature : -20℃～+60℃
The range of temperature: -20℃～+60℃
Elevation: ≤ 2000m
Environment condition: There must be not any explosive medium and there must be not any gas which would corrode metal or any conducting dust which would destroy the insulation.
Installing categories: Class Ⅱ, Ⅲ.
Pollution protection: Grade 3
Installation condition
a. The tilt gradient between installation face and vertical face should ≤ 30°
b. Installing condition: mounted by TH35-7.5 standard rail track.
C. Products should be used in no significant impact and vibration place.
4.Main technical parameters
Basic technical parameters (as table 1)
table 1
|
Type
|
Usage classification
|
lnm
Frame rated current
|
Ui
Rated insulation voltage
|
Operation performance
|
Operation frequency
|
|
|
Electrify operation cycle-index
|
Non-electrify operation cycle-index
|
|||||
|
GSM8-32
|
AC-3
|
32A
|
690V
|
60000 times
|
60000 times
|
120
|
The action characteristic parameters (as table 2)
table 2
|
Item
|
Serial number
|
Testing current
|
Order time
|
Initial state
|
Expectancy ending
|
note
|
|
|
+20± 2℃
Time-delay protection character
|
a
|
1.05ln
|
t≤ 2h
|
Cold state
|
Not release
|
＿
|
|
|
b
|
1.2ln
|
t＜2h
|
Hot
state
|
release
|
Immediately after a pilot, 5s with current provisions rose to a stable value
|
||
|
c
|
1.5ln
|
t＜4min
|
Hot
state
|
release
|
Immediately after a pilot, 5s with current provisions rose to a stable value
|
||
|
Instantaneous protection character
|
d
|
ln≤ 0.25
|
7.68ln
|
t≤ 0.2s
|
Cold state
|
not release
|
＿
|
|
ln＞0.25
|
9.6ln
|
||||||
|
e
|
ln≤ 0.25
|
11.52ln
|
t＜0.2s
|
Cold state
|
release
|
＿
|
|
|
ln＞0.25
|
14.4ln
|
||||||
|
Phase-failure protection features
+20± 2℃
|
f
|
2P 1.0ln
1P 0.9ln
|
t≤ 2h
|
Cold state
|
not release
|
＿
|
|
|
g
|
2P1.15ln
1P not state
|
t＜2h
|
Hot
state
|
release
|
Immediately after a pilot, 5s with current provisions rose to a stable value
|
||
Time-current character curve (as picture 1)