The Siemens SENTRON 5SY4125-6 is a single-pole circuit breaker with a rated current of 25 A and tripping characteristic B. The device protects electrical circuits against the effects of overload and short circuit. The rated switching capacity is 10 kA according to EN 60898-1 and 20 kA according to IEC 60947-2. The modular design with a division unit is suitable for mounting on a DIN rail in any installation position. The circuit breaker has combination terminals on both sides, a power supply from above or below, an optical switching position indicator and a connection option for additional devices. The housing is halogen-free, silicone-free and sealable. The device can be used as a main switch according to EN 60204-1.
- Manufacturer: Siemens
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Series: SENTRON 5SY4
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Item number: 5SY4125-6
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Device type: circuit breaker
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Number of poles: 1
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Pole arrangement: 1P
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Rated current AC: 25 A
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Trigger characteristic: B
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Rated voltage AC: 230/400 V
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Supply voltage DC: 60 V
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Maximum operating voltage DC: 72 V
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Rated frequency: 50/60 Hz
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Rated insulation voltage Ui: 440 V AC
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Rated impulse withstand voltage Uimp: 4 kV
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Switching capacity according to EN 60898-1: 10 kA
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Switching capacity according to IEC 60947-2 AC: 20 kA
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Switching capacity according to IEC 60947-2 DC: 15 kA
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Rated limit short-circuit breaking capacity Icu: 20 kA
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Rated operational short-circuit breaking capacity Ics: 10 kA
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Switching capacity according to UL 1077 and CSA C22.2 No. 235: 5 kA
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Energy limitation class: 3
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Magnetic trigger setting current: 4 × In
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Power loss per pole: 2.4 W
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Overvoltage category: III
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Pollution degree: 3
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Protection class: IP20 with connected conductors
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Mechanical lifespan: 10,000 switching cycles
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Connectable conductor cross-section, solid: 0.75–35 mm²
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Connectable conductor cross-section, stranded: 0.75–35 mm²
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Connectable conductor cross-section, fine-wire with wire end treatment: 0.75–25 mm²
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Connectable conductor cross-section AWG: 18–4
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Screw terminal tightening torque: 2.5-3.5 Nm
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Stripping length: 15 mm
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Height: 90mm
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Width: 18mm
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Depth: 76mm
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Installation depth: 70 mm
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Division units: 1
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Mounting type: DIN rail
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Installation position: any
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Operating temperature: −40 to +70°C
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Storage temperature: −40 to +75°C
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Net Weight: 163g
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Standards: IEC/EN 60898-1, IEC/EN 60947-2, UL 1077
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Halogen-free: yes
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Silicone-free: yes
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Sealable: yes
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Additional devices can be added: yes
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Country of manufacture: Germany
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The Siemens SENTRON 5SY4125-6 is a single-pole circuit breaker with a rated current of 25 A and tripping characteristic B. The device protects electrical circuits against the effects of overload and short circuit. The rated switching capacity is 10 kA according to EN 60898-1 and 20 kA according to IEC 60947-2. The modular design with a division unit is suitable for mounting on a DIN rail in any installation position. The circuit breaker has combination terminals on both sides, a power supply from above or below, an optical switching position indicator and a connection option for additional devices. The housing is halogen-free, silicone-free and sealable. The device can be used as a main switch according to EN 60204-1. If you are a company based in an EU country and with a valid VAT number.