| Customization: | Available |
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| Breaking Capacity: | Low Voltage Circuit Breakers |
| Operation: | Manual Type |
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STM4-63 Series 6KA Miniature Circuit Breaker 1P 2P 3P 63A against Overload and Short-circuit MCB
General
STM4-63 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 IEC60898.1 standard.
Specifications
| Standard | IEC/EN 60898-1 | ||
| Electrical features |
Rated current In | A | 1,2,4,6,10,16,20,25,32,40,50,63 |
| Poles | P | 1,2,3,4 | |
| Rated voltage Ue | V | AC 230, 400 | |
| Insulation voltage Ui | V | 500 | |
| Rated frequency | Hz | 50/60 | |
| Rated breaking capacity | A | 3000, 4500, 6000 | |
| Rated impulse withstand voltage(1.2/50)Uimp | V | 4000 | |
| Dielectric test voltage at ind.Freq.for 1 min | Kv | 2 | |
| Pollution degree | 2 | ||
| Thermo-magnetic release characteristic | B,C,D | ||
| Mechanical features |
Electrical life | t | 4000 |
| Mechanical life | t | 10000 | |
| Protection degree | IP20 | ||
| Reference temperature for setting of thermal element |
ºC | 30 | |
| Ambient temperature (with daily average ≤35ºC) |
ºC | -5~+40(Special application please refer to temperature compensation correction) |
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| Storage temperature | ºC | -25~+70 | |
| Installation | Terminal connection type | Cable/Pin-type busbar | |
| Terminal size top/bottom for cable | mm2 | 25 | |
| AWG | 18-3 | ||
| Therminal size top/bottom for busbar | mm2 | 25 | |
| AWG | 18-3 | ||
| Tightening torque | N*m | 2 | |
| In-lbs | 18 | ||
| Mounting | on DIN rail EN 60715(35mm)by means of fast clip device | ||
| Connection | From top and bottom |
General rules for choosing MCB:
a. 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.
b. There are 3 curve characteristics for magnetic operation:
*B curve (3-5 In) protection and control of the circuits against length cables in TN and IT systems.
*C curve (5-10 In) protection and control of the circuits against overloads and short-circuits; protection for resistive and
inductive loads with low inrush current.
*D curve (10-20 In) 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).
Company Information
WENZHOU SANTUO ELECTRICAL CO,LTD. is one of manufactories that specialize in manufacturing AC contactor, Thermal Relay and Circuit Breaker, and is located in Liushi, Wenzhou, China that called the Capital convenient transportation access and a beautiful environment.
FAQ
Q1. How does your factory do regarding quality control?
A. All the products will be 100% checked before the shipment.
Q2. Are you a manufacturer or trading company?
A. We are a manufacturer with over 20 years' experience, and we can guarantee our price is first-hand, very cheap and competitive.
Q3. Which payment terms is available?
A. We accept TT, 30% deposit and 70% balance agaisnt copy of BL.
Q4. How's the delivery time ?
A. Usually it will take about 25 days for production.
Q5. Tell me the standard of package?
A. Normally are cartons, but also we can pack it according to your requirement.
Q6. Could I put my logo on it?
A. If you have good quantity, it absolutely no problem to do OEM.
Q7. Do you provide samples? Is it free or extra?Do you provide samples ? is it free or extra ?
A. Yes, we could offer the samples for free charge, but the express charge need to be paid by the buyers.
Q8. What is your terms of payment?
A. We accept TT, 30% deposit and 70% balance agaisnt copy of BL.
Q9. What is the price of shipping?
A. Depending upon the port of delivery, prices varies.
Q10. How long is the guarantee time?
A. 18 months.
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