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Reputation is the first, quality is the priority.
7 Years
| Ask Lasest Price | |
| Brand Name : | SONTUOEC ,WZSTEC |
| Model Number : | STN2 |
| Certification : | CE |
| Price : | Negotiable |
| Supply Ability : | 3000pcs/day |
| Delivery Time : | 20 days |
1. Functions and characteristics
| Item No. | 100-250 | 400-630; 800-1600(NS) | |
| Number of poles | 3P, 4P | 3P, 4P | |
| Control | Manual | with toggle/with direct or extended rotary handle | |
| Connections | Fixed | front connections | |
| Plug-in | front connections/rear connections | ||
| Electrical characteristics as per IEC60947-2 and EN60947-2 | |||
| Rated current(A) | In | 40°c | |
| Rated insulation voltage(V) | Ui | 750 | |
| Rated impulse withstand voltage(kV) | Uimp | 8 | |
| Rated operational voltage(V) | Ue | AC50/60Hz, 690V | |
| Utilization category | A | ||
| Operation performance | Mechanical | 8500 | 6000 |
| Electrical | 1500 | 1000 | |
| Protection | Chart B-1 B-2 | ||
| Indication and control auxiliaries | |||
| Auxiliary switch | / | ||
| MX shunt coil | / | ||
| MN under-voltage coil | / | ||
2. Excellent performance:
STNSX dual rotary contact structure and the energy release system
to ensure stable and reliable protection, and has excellent
current-limitting characteristics. Transparent aluminum cover
protects the trip unit from settings, rotary handle, motor
operation mechanism, etc. can be installed.
3. Compliance with standards
International standards
♦ IEC947-1: general rules
♦ IEC947-2: circuit breakers
♦ IEC947-4: contactors and motor starters
♦ IEC947-5.1: control circuit devices and switching elements;
automatic control components.
4. Working environment
♦ Altitude belows 2000m;
♦ Circuit breaker may be used between -25°c and +70°c. For
temperatures higher than 40°c (65°c for circuit breakers used to
protect motor feeders), devices must be derated.
♦ It can withstand the impact from humid air, salt spray, oil mist
and mold;
♦ It should be installed in places with no danger of explosion, no
conductive dust, and no substance enough to corrode metal or damage
the insulation.
♦ In places with no rain and snow erosion;
♦ Pollution degree 3;
♦ Installation category III.
5. More details
6. The main function of circuit breaker
CNSX series of MCCB offers comprehensive function choice. These
functions can be used easily, and can be completely applied into
every field safety.
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