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| Model | ARM3E-400 | |||||
|---|---|---|---|---|---|---|
| Rated current In (A) | 160A, 180A, 200A, 225A, 250A, 280A, 315A, 350A, 375A, 400A | |||||
| Rated current of frame size Inm (A) | 400A | |||||
| Usage category | Category B | |||||
| Rated ultimate short-circuit breaking capacity level | L | M | H | |||
| Number of poles (P) | 3P | 3P | 3P | 4P | 4P | |
| Rated working voltage Ue (V) | 400V | |||||
| Rated ultimate short-circuit breaking capacity Icu (kA) | 50kA | 65KA | 100KA | |||
| Rated service short-circuit breaking capacity Ics (kA) | 50kA | 42KA | 65KA | |||
| Rated short-time withstand current Icw (kA/1S) | 5KA/1s | 8KA/1s | ||||
| Rated working voltage Ue (V) | 690V | |||||
| Rated ultimate short-circuit breaking capacity Icu (kA) | 20KA | |||||
| Rated service short-circuit breaking capacity Ics (kA) | 15KA | |||||
| Rated insulation voltage Ui (V) | 1000V | |||||
| Rated impulse withstand voltage Uimp (V) | 8kV | |||||
| Mechanical life (time) | 4000 | |||||
| Electrical life (time) | 1000 | |||||
| Arcing distance (mm) | ≯100 | |||||
W*L*H (mm)
|
3P | 150*258*111 | ||||
| 4P | 200*258*111 | |||||
| package 3p | 198*277*177 | |||||
| package 4p | 250*280*180 | |||||
| weight 3P | 5712g | |||||
| weight 4P | 7808g | |||||
| Model | C | D | ||
|---|---|---|---|---|
| ARM3R-630(L/M/H) | ARM3-400(C/L/M/H) | ARXM3-400L/M/H | 40 | 59 |
| ARM3L-400(L/M/H) | ARM3ER-630(L/M/H) | ARM3E-400L/M/H | 26 | 49 |
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Our process utilizes side heating resistance welding, which transfers heat from the copper to the silver spot without causing electrical corrosion or softness to the silver contact surface. This keeps the contact in its original state, ensuring excellent consistency and extending the electrical and mechanical lifespan of the contact by 15%.
The infrared temperature control technology accurately manages all critical welding parameters during manufacturing. This high precision guarantees superior welding quality and extends the overall service life of the circuit breaker by up to 50%.
The ARM3E-400 series is available in several rated current options: 160A, 180A, 200A, 225A, 250A, 280A, 315A, 350A, 375A, and 400A, to support diverse electrical distribution systems.
The circuit breaker supports front panel wiring, rear panel wiring, and plug-in rear panel wiring for both 3P and 4P configurations, allowing flexible installation setups depending on your panel architecture.
The ARM3E series circuit breaker is designed with a rated insulation voltage (Ui) of 1000V and a rated impulse withstand voltage (Uimp) of 8kV, ensuring robust safety under electrical surges.
