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7 Years
| Ask Lasest Price | |
| Brand Name : | SONTUNE |
| Model Number : | ST4-63 |
| Certification : | CE |
| Price : | Negotiable |
| Supply Ability : | 10000PCS/DAY |
| Delivery Time : | 20DAYS |
Type C MCB Miniature Circuit Breaker 4P 230V High Breaking Capacity
General
ST4-63 series high breaking capacity mini circuit breaker is used
in AC50/60Hz, rated voltage of 230V
3, 4 poles 400V, rated current to 63A for overload and short-circuit protection as well as for unfrequented switching under normal case.It is used extensively for industry, commercial and household.This product conform to IEC60898 standard.
1. Application:For protecting cables and equipments against
overload and short circuit.
2. General rules for choosing MCB.
Technical data of the network at the point considered
The earthing systems,short-circuit current at the circuit breaker
installation point,which must always be less than the breaking
capacity of this device,network normal voltage.
There are 3 curvve characteristics for magnetic operation:
B curve (3-5In) protection and control of the circuits against
length cables in TN and IT systems.
C curve (5-10In) protection and control of the circuits against
overloads and short-circuits; protection for resistive and
inductive loads with low inrush current.
D curve (10-14In) protection and control of the circuits against
overloads and short-circuits; protection for circuits which supply
loads with high inrush current at the circuit closing (LV/LV
transformers,breakdown lamps.)
Specifications
| Model | ST4-63 MCB |
| Pole | 1P,2P,3P,4P |
| Rated Current(In) | 1,2,4,6,10,16,20,25,32,40,50,63A |
| Rated Voltage(Un) | 230/400V |
| Rated Frequency | 50/60HZ |
| Tripping curve | B,C,D |
| Magnetic releases | B curve: between 3and 5 In |
| C curve: between 5and 10In | |
| D curve: between 10 and 14In | |
| Electro-mechanical endurance | over 6000 cycles |
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