Introduction
The groundbreaking DAM1 series circuit breakers are engineered to deliver robust performance, ensuring seamless current conduction during normal operation and providing rapid disconnection during short circuits, overloads, and other electrical anomalies. With an operational voltage ceiling of 400V and a rated current spectrum ranging from 12.5A to a powerful 1600A, these circuit breakers are the quintessential solution for safeguarding your electric units.
Our products strictly adhere to the rigorous standards of EN 60947-1 and EN 60947-2, underscoring their superior quality and reliability.
Thermal-Magnetic Circuit Breakers:
Thermal Protection Function: (For protection under overload conditions)
At the heart of our thermal protection mechanism lies a sophisticated bimetal component, crafted by combining two metals with distinct thermal expansion properties. Upon heating, the bimetal bends towards the metal with lesser expansion, triggering the breaker mechanism and effectively interrupting the current flow. This precise, heat-responsive bending action ensures that any overcurrent situation exceeding the rated current is promptly mitigated, securing your system against potential damage.
Magnetic Protection Function:(For protection under short circuit conditions) Another critical function of the breaker is tosafeguard the connected circuit from shortcircuits. Short circuits can occur whenphases come into contact with each other orwhen a phase touches the ground. In suchscenarios, an immense current surge through the cablesnecessitates a rapid disconnection to prevent thermal damage. The breaker mustinitiate an instantaneous interruption to shield the loadit is connected to. This protective function is executedby a mechanical openingmechanism thatresponds tothe magnetic field generated by the short circuit current,ensuring swift and efficient system protection.
| Thermal-Magnetic fixed type Circuit Breakers |
|
| Model |
DAM1-250 |
| Breaking Capacity Code |
N |
S |
H |
G |
| Rated Current of Frame size- Inm (A) |
250A |
| Rated Current-In(40,50 or 55ºC) (A) |
63 - 80-100-125 - 160(180) - 200(225) - 250(320)A |
| Rated İnsulation Voltage -Ui(a.c.) 50-60Hz (V) |
750V |
| Rated operation Voltage -Ue(a.c.) 50-60Hz (V) |
400/415V |
| Number of Pole |
3P /4P |
| Rated ultimate short Circuit breaking Capacity kA Icu AC400V/50Hz O-CO (KA) |
35 |
50 |
65 |
85 |
| Rated service short Circuit breaking Capacity kA Ics AC400V/50Hz O-CO-CO (KA) |
26.25 |
37.5 |
48.75 |
51 |
| Rated short-circuit breaking capacity Icm(peak)/cos ф AC400V/50HZ O-CO (KA) |
77/0.25 |
114/0.25 |
143/0.2 |
178/0.2 |
| Rated impulse withstand Voltage -Uimp (V) |
8000 |
| Dielectric Propery (V) |
3000 |
| lonization distance (mm) |
≤30/0 |
| Endurance |
Total Cycles |
8000 |
| Electrical Life |
1000 |
| Mechanical Life |
7000 |
| Over Current trip |
Thermal and Magnetic release fix type |
√ |
| Category (EN 60947-2/IEC 60947-2) |
Main circuit |
A/B |
| Auxiliary circuit |
AC-15 |
| Under Voltage Release |
√ |
| Shunt Release |
√ |
| Auxiliary Contact |
√ |
| Alarm Contact |
√ |
| Auxiliary Contact and Alarm Contact |
√ |
| Handle Operation Mechanism |
√ |
| Electrical Operastion Mechanism |
√ |
| DIN clips |
- |
| Terminal cover |
|
|
√ |
| Phase seperator |
|
|
√ |
| Extention Handle |
|
|
- |
| |
W (mm) |
3P |
105 |
| 4P |
140 |
| L (mm) |
3P |
170 |
| 4P |
170 |
| H (mm) |
3P |
103.5 |
| 4P |
103.5 |
| Weight |
Fixed version 3P/4P |
2.7/3.5 |
41.5/5.5 |
| Plug-in version 3P/4P |
3.2/4.2 |
4.6/6 |
| Draw out version 3P/4P |
3.6/4.6 |
5/6.4 |
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