Siemens 5SY4325-8 Miniature Circuit Breaker 3-Pole, 25A, Type D, 10kA, 400V Original Brand New
$119.37
High-performance 3-pole Miniature Circuit Breaker designed for industrial and commercial electrical protection. Featuring a 25A current rating and Type D tripping characteristic, it provides robust defense against short circuits and overloads in systems with high inrush currents.
Availability: In stock
Overview
The Siemens 5SY4 series of miniature circuit breakers are engineered for reliability and safety. The 5SY4325-8 model is specifically built to handle demanding electrical environments, offering a high breaking capacity of 10kA. With its compact 70mm mounting depth and 3-pole configuration, it is the ideal solution for protecting three-phase motors, transformers, and solenoid valves.
Key Benefit
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Enhanced Safety: Provides reliable disconnection in the event of a fault, protecting both personnel and equipment.
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Type D Characteristic: Optimized for circuits with high inductive loads and significant starting peaks.
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Space-Saving Design: Standard 70mm depth ensures easy integration into distribution boards and control cabinets.
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Durability: Built to Siemens’ rigorous quality standards for a long operational lifespan.
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Easy Installation: Features ergonomic terminals for secure and fast wiring.
Function & Features
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Pollarity: 3-Pole (3P) for simultaneous switching of three phases.
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Tripping Class: Type D (Trips at 10 to 20 times the rated current).
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Breaking Capacity: Up to 10kA according to EN 60898-1.
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Voltage Rating: Optimized for 400V AC applications.
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Mounting: Standard DIN rail mounting for universal compatibility.
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| Weight | 0.477 kg |
|---|---|
| Dimensions | 58.00 × 94.00 × 84.00 mm |
| Brand | SIEMENS |
| product brand name | SENTRON |
| product designation | Miniature circuit breaker |
| design of the product | For railway applications |
| number of poles | 3 |
| design of pole | 3P |
| tripping characteristic class | D |
| mechanical service life (switching cycles) / typical | 10 000 |
| overvoltage category | III |
| degree of pollution | 3 |
| type of voltage / of the operating voltage | AC |
| insulation voltage (Ui) | – |
| ● with single-phase operation / at AC / rated value | 440 V |
| ● with multi-phase operation / at AC / rated value | 440 V |
| supply voltage | – |
| operating voltage / at DC / rated value / maximum | 72 V |
| protection class IP | IP20, with connected conductors |
| switching capacity current | – |
| ● acc. to EN 60898 / rated value | 10 kA |
| power loss [W] / for rated value of the current / at AC / in hot operating state / per pole | 2.1 W |
| operational current | – |
| ● at 35 °C / rated value | 25 A |
| ● at 40 °C / rated value | 23.5 A |
| ● at 45 °C / rated value | 22.72 A |
| ● at 50 °C / rated value | 21.9 A |
| ● at 55 °C / rated value | 21.05 A |
| ● at 60 °C / rated value | 20.18 A |
| ● at AC / rated value | 25 A |
| suitability for operation | Mechanical engineering / industry |
| product component / neutral conductor switching | No |
| product feature / touch protection | Yes |
| product component | – |
| ● combined terminal top | Yes |
| ● combined terminal bottom | Yes |
| product feature | – |
| ● properties for main switches in accordance with EN 60204-1 | No |
| ● halogen-free | Yes |
| ● sealable | Yes |
| ● silicon-free | Yes |
| product extension / installable / supplementary devices | Yes |
| connectable conductor cross-section / solid | – |
| connectable conductor cross-section / stranded | – |
| connectable conductor cross-section / finely stranded / with core end processing | – |
| tightening torque [lbf·in] / with screw-type terminals | – |
| tightening torque / with screw-type terminals | – |
| position / of power supply cord | Any |
| installation depth | 70 mm |
| number of modular width units | 3 |
| fastening method | Quick assembly system |
| mounting position | any |
| influence of the surrounding temperature | max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C |
| vibration resistance / acc. to IEC 60068-2-6 | ±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz |
| ambient temperature / during operation | – |
| ambient temperature / during storage | – |
| ● minimum | -40 °C |
| ● maximum | 75 °C |
| number of test cycles / for environmental testing / acc. to IEC 60068-2-30 | 28 |
| reference code | – |
| ● acc. to DIN EN 61346-2 | F |
| ● acc. to IEC 81346-2 | F |
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