English
Español
SFM65N-63 miniature circuit breaker has a high breaking capacity (6kA), mechanical life is 4000 times, and tripping curve is B, C, D, DIN guide rail installation.
MCB 6KA C25 Types of Miniature Circuit Breaker SFM65N-63 Parameter
| Categories | Economic 4.5KA, 6kA Regular Series Circuit Breaker |
| Pole No | 1P. 1P+N. 2P. 3P. 3P+N. 4P |
| Rated current(A) | 1. 2. 3.4. 6. 10.16. 20. 25. 32. 40. 50. 63 |
| Rated voltage | AC 230. 230/400. 400 |
| Rated Frequency | 50/60Hz |
| Tripping curve | B. C. D |
| Rated short-circuit capacity (Icn) | 6000A |
| Mechanical life | 20000 times |
| Contact position | indication window |
| Degree of protection | IP20 |
| Connection terminal | Pillar terminal with clamp |
MCB 6KA C25 Types of Miniature Circuit Breaker SFM65N-63 Construction and Feature
■ Fine and unique appearance,advanced design
■ Short-circuit and overload dual-protection performance
■ High-breaking capacity (6kA) that is leading among the world similar products
■ Mechanical life:4000 times
■ Convenient and reliable installation
MCB 6KA C25 Types of Miniature Circuit Breaker SFM65N-63 Technical Data
■ Model: SFM65N-63
■ Rated current(A): 1、2、3、4、6、10、16、20、25、32、40、50、63
■ Rated voltage: AC 230.230/400, 400
■ Rated Frequency: 50/60Hz
■ Tripping curve: B,C,D
■ Rated short- -circuit capacity (Icn) :6000A
■ Mechanical life: 20000 times
■ Contact position indication window
■ Degree of protection: IP20
■ Connection terminal:Pillar terminal with clamp
■ Connection conductor: up to and including 16mm
■ Terminal Connection Height:H1=19.5mm,H2=21 5mm
■ Installation:DIN-rail mounting
MCB 6KA C25 Types of Miniature Circuit Breaker SFM65N-63 Characteristic Curve
MCB 6KA C25 Types of Miniature Circuit Breaker SFM65N-63 Power Conumtion
| Rated current range(InA) | Max consumption/pole(W) |
| In<10 | 3 |
| 10 | 3.5 |
| 16 | 4.5 |
| 25 | 6 |
| 32 | 7.5 |
| 40 | 9 |
| 50 | 13 |
Wiring Diagram
Overload Current Protection Characteristics
| Test Procedure | Type | Test Current | Initial State | Tripping or Non-tripping Time Limit | Expected Result | Remark |
| a | B,C,D | 1.13In | cold | t≤1h | no trippint | |
| b | B,C,D | 1.45In | After test a | t<1h | tripping |
Current in the 5 s in the increase of stability |
| c | B,C,D | 2.55In | cold |
1s60s(In≤32A) 1s32A) |
tripping | |
| d | B | 3In | cold | t≤0.1s | no tripping |
Turn on the auxiliary switch to close the current |
| C | 5In | cold | ||||
| D | 10In | cold | ||||
| e | B | 5In | cold | t<0.1s | tripping |
Turn on the auxiliary switch to close the current |
| C | 10In | cold | ||||
| D | 20In | cold |
Overall&installation Dimensions
> What Should You Look for in a DC Isolator Switch for Solar PV?
A Isolator switch with 1200V DC rating, 32A capacity, and <8ms arc extinction provides safe disconnection for 1-20kW residential and commercial solar PV systems — ce...
> Why Does Your Electrical System Need a Residual Current Circuit Breaker?
A Residual Current Circuit Breaker RCCB is an electromagnetic device that protects people and equipment from electric shock and ground faults. It continuously monito...
> How Does a Liquid Level Relay Automate Your Water Pump?
A Liquid Level Relay automates pump control using conductive electrodes—no PLC required. This guide covers fill/drain modes, electrode selection, wiring, and trouble...
> What Makes a Charging Connector Reliable for Daily EV Charging?
A Charging Connector is more than a cable end—it’s the critical interface between the EV and the charger. With GB, EU, and US standard options, mechanical life of ≥1...