ARM3E Series electronic type adjustable type circuit breaker 400V/690V 1250amp 3/4 Poles Built in LSIG Trip Unit
MCCB Highlights
Advantages and highlights of welding process equipment for MCCB Electronic type hardware parts
1. has strong welding core competitiveness, and uses fully automatic equipment to flexibly accept parts welding processes from all walks of life.
Various parts and components can be welded through copper loading, copper fetching, solder paste dripping, silver spot fetching, silver spot detection and positioning, silver spot welding, finished product fetching, and finished product fetching detection
2.The infrared temperature control technology is used to precisely control the welding parameters, which ensures the welding quality and greatly improves the service life of the product by 50%.
3. Workshop welding equipment adopts medium frequency power supply, servo motor pressurization, automatic pressure detection display and automatic defect alarm, ensuring zero defect requirements for products.
Main performance index of ARM3E series circuit breaker
| Model | ARM3E-1250 | ||
| Rated current In (A) | 1250A(Ir:800A/850A/900A/950A 1000A/1050A/1100A/1250A) |
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| Rated current of frame size Inm (A) | 1250A | ||
| Usage category | Category B | ||
| Rated ultimate short-circuit breaking capacity level | H | ||
| Number of poles (P) | 3P | ||
| Rated working voltage Ue (V) | 400V | ||
| Rated ultimate short-circuit breaking capacity Icu (kA) | 80kA | ||
| Rated service short-circuit breaking capacity Ics (kA) | 50kA | ||
| Rated short-time withstand current Icw (kA/1S) | 15KA/1s | ||
| Rated working voltage Ue (V) | 690V | ||
| Rated ultimate short-circuit breaking capacity Icu (kA) | 20KA | ||
| Rated service short-circuit breaking capacity Ics (kA) | 20KA | ||
| Rated insulation voltage Ui (V) | 1000V | ||
| Rated impulse withstand voltage Uimp (V) | 8kV | ||
| Mechanical life (time) | 2500 | ||
| Electrical life (time) | 500 | ||
| Arcing distance (mm) | ≯100 | ||
| W*L*H (mm) | 3P | 210*340*153.5 | |
| 4P | / | ||
| package 3p | |||
| package 4p | / | ||
| weight 3P | |||
| weight 4P | / | ||
Overall and installation dimensions of circuit breaker
Circuit breaker 1250 frame size installation safety interval
■ ARM 3E-1250front panel wiring (3P)
X-X, Y-Y are the center of three-pole circuit breaker
