Introduction
The DAM1 series circuit breakers are a pinnacle of safety and performance, designed to conduct current seamlessly in normal operations and efficiently interrupt it in cases of short circuits, overloads, or inadmissible fluctuations. With operational voltage capped at 400V and a rated current range from 12.5 to 1600A, these breakers are ideal for electric units, ensuring your systems run smoothly and safely.
These circuit breakers are fully compliant with the rigorous standards of EN 60947-1 and EN 60947-2, guaranteeing top-notch reliability and safety.
Thermal-Magnetic Circuit Breakers:
Thermal Protection Function: (Designed to safeguard against overload conditions)
The bimetal component, which provides thermal protection, is crafted from two metals with distinct expansion rates when heated. As the bimetal heats up, it bends towards the metal with a lower expansion rate, triggering a notch that facilitates the breaker mechanism's disengagement, thereby disabling the breaker. The bending rate of the bimetal is directly proportional to the current passing through the breaker, with higher currents generating more heat. This ensures effective overcurrent protection when load currents exceed the rated levels.
Magnetic Protection Function:(Engineered for protection against short circuit conditions) Another crucial function of the breaker is tosafeguard the connected circuit against shortcircuits. These incidents may stem fromphase-to-phase contact orphase-to-ground contact. Given theenormous current surge through cables during a short circuit, the system'senergy must be interrupted instantaneously toavoid thermal damage. The breaker mustexecute rapid disconnection to protect the loadit is connected to. This function is fulfilled by amechanical opening mechanism thatactivates throughmagnetization induced by the magnetic field generated by the short circuit current.magnetization caused by the magnetic area formed by the short circuit current
| 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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