Circuit Breaker Siemens 25A 2P 10KA curve D 2 modules 5SL42258
Siemens Circuit Breaker 5SL42258 2 poles 25A curve D, breaking capacity 10 kA. Ideal for circuits with high inrush currents such as motors, pumps, and transformers.
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Siemens series 5SL circuit breaker
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2 poles 2 DIN modules
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Rated current: 25 A
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Curve D: tripping threshold from 10 to 20× In
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Breaking capacity: 10 kA
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Insulation voltage: 440 V AC
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Mechanical endurance: 10,000 cycles
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Overvoltage category: III
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Pollution degree: 2
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Ideal for inductive loads with high starting currents
Siemens Circuit Breaker Curve D: Reliable Protection for Motors and Transformers
The Siemens circuit breaker is designed to protect electrical circuits from overloads and short circuits, ensuring a quick and safe response. The curve D, designed for highly inductive loads, prevents unwanted tripping in the presence of high inrush currents typical of:
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Electric motors
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Pumps and compressors
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Transformers
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Industrial plants and automation panels
The ability to withstand up to 1020 times the nominal current makes it perfect for professional and industrial applications.
Siemens Construction: Quality and Long Life
Designed to last over time, the device guarantees 10,000 mechanical operation cycles, ensuring reliability even in installations subject to frequent operations.
The DIN rail mounting and 2-module format allow for quick installation in domestic, commercial, and industrial electrical panels.
GENERAL TECHNICAL DATA
| Product brand | SENTRON |
| Product name | Circuit breaker |
| Number of poles | 2 |
| Pole execution | 2 poles |
| Tripping characteristic class | D |
| Mechanical lifespan | 10,000 cycles |
| Overvoltage category | 3 |
| Pollution degree | 2 |
VOLTAGE
| Type of operating voltage | AC |
| Type of voltage | Exclusive use in AC or DC, not mixed |
| Insulation voltage (Ui) | 440 V (multiphase AC) |
| Operating current at 30 °C | 25 A |
| Operating current at 40 °C | 23.1 A |
| Operating current at 55 °C | 19.91 A |
| Nominal AC current | 25 A |
SUPPLY VOLTAGE
| AC supply voltage | 400 V |
| Frequency | 50 / 60 Hz |
| Max operating voltage AC | 440 V |
| Max operating voltage DC | 62.5 V (peak 72 V) |
PROTECTION CLASS
| IP protection degree | IP20 (with connected conductors) |
SWITCHING CAPACITY
| Breaking capacity EN 60898 | 10 kA |
| Breaking capacity IEC 60947-2 | 10 kA |
DISSIPATION
| Power dissipated per pole | 2.3 W (at nominal AC current) |
SUITABILITY FOR USE
| Applications | Residential building / Infrastructure |
DETAILS
| Protection against accidental contact | Yes |
| Sectionable neutral conductor | No |
| Halogen-free | Yes |
| Sealable product | Yes |
| Silicone free | Yes |
| Mounting of additional devices | Yes, flush mountable |
Data sheet
- Modules: 2
- Poles: 2P
- Curve: D
- Breaking capacity: 10KA
- Amps: 25A
- Circuit Protections: Circuit breakers
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