Description
Circuit Breaker hydraulic-magnetic MCB, SFM Series 20 Amp 1 Pole 440VAC 6kA Tripping Curve 1
Features:
• CBI has a wide variety of circuit breakers. The QF/SFM, NK and CBE products utilise the Hydraulic Magnetic technology, whereas the SFR and MCCB* ranges utilise the Thermal Magnetic technology.
• In a hydraulic-magnetic circuit breaker, the current travels through a coil that generates a magnetic field that trips the circuit breaker. Therefore, heat is not a factor in tripping a hydraulic-magnetic circuit breaker, and this means that a hydraulic-magnetic circuit breaker is always tripped by rated current, regardless of the ambient temperature. Other benefits include smaller module sizes and lower critical resistance.
• CBI QF/SFM products use Curve 1, Curve 2 and Curve 3 instead of D Curve, C Curve etc. The tripping curve characteristics between the curves are similar.
• A Curve 1 tripping curve will be similar to a D Curve (long time delay) A Curve 2 will be similar to a C Curve (medium time delay) A Curve 3 will be similar to a B Curve (short time delay)
Technical Specifications
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| Phase | 1 |
| Category | Circuit Breakers |
| Standard | N15215, AS 3111 |
| Enclosure | IP2X |
| Voltage | 415VAC |
| UNSPCS | 39121603 |
| Height | 121.1 mm |
| Breaking Capacity | 6kA |
| Curve Characterstic | D |
| Temperature Rating | -10 to 60 deg C |
| Connection | 50 sq-mm Copper Conductor Front, M6 Stud Terminal Back/Rear |
| Curve | 1 |
| Pole Configuration | 1 Pole |
| Range | SFM Series |
| Mounting Type | Surface/Clip Tray/Front Screw |
| Frequency Rating | 50/60 Hz |
| Brand Name | Heinnemann |
| Mounting | Front & surface Mount |
| Item Name | Miniature Circuit Breaker |
| EAN/UPC | 2000000051314 |
| Interrupt Rating | 6 kA |
| Length | 103.1 (W) x 71.8 (D) x 149.0(H) mm |
| Number of Poles | 1 |
| Rated Current | 20 Amp |
| Current | 20A |
| Environmental Conditions | -20 to 60 deg C Storage Temperature, 4000 Cycle of Mechanical, 6000 Cycle of Electrical Durability |
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