Siemens 5SY6203-7 Miniature Circuit Breaker 2-Pole, 3A, Type C, 6kA, 400V Original Brand New
$66.94
High-performance miniature circuit breaker from the SENTRON series. Designed for 400V AC systems, this 2-pole, 3 Amp breaker features a Type C tripping characteristic and a 6kA breaking capacity, ensuring superior protection for electrical circuits against overloads and short circuits.
Availability: In stock
Overview
The Siemens 5SY6203-7 provides reliable circuit protection in a compact 3$70\text{ mm}$ mounting depth.4 Part of the world-renowned Siemens Sentron family, this MCB is engineered for versatility and safety in both residential and industrial electrical distributions. Its Type C tripping curve is ideal for circuits with moderate inductive loads and higher peak currents.
Key Benefit & Features
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Precision Protection: Specialized 3 Amp rating for low-current sensitive applications.
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Durable Design: 6kA breaking capacity ensures safety during high-fault current events.5
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Space Efficient: Standard $70\text{ mm}$ mounting depth for easy integration into control panels and distribution boards.
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Type C Curve: Optimized for switching applications where slight surges occur, preventing nuisance tripping.
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Global Standards: Complies with international safety standards for industrial and commercial use.
Technical Function
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Overload Protection: Thermal release mechanism protects wiring from sustained overcurrent.
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Short-Circuit Protection: Instantaneous electromagnetic release for immediate disconnection during faults.
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Safe Isolation: Provides clear indication of contact position for maintenance safety.
Application
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Power distribution panels
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Control cabinets
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Industrial automation systems
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Commercial and residential electrical installations
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| Weight | 0.306 kg |
|---|---|
| Dimensions | 40.00 × 92.00 × 84.00 mm |
| Brand | SIEMENS |
| product brand name | SENTRON |
| product designation | Miniature circuit breaker |
| number of poles | 2 |
| design of pole | 2P |
| tripping characteristic class | C |
| 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 / with single-phase operation / at AC / rated value | 230 V |
| supply voltage | – |
| operating voltage / at DC / rated value / maximum | 72 V |
| protection class IP | IP20, with connected conductors |
| switching capacity current | – |
| ● at DC / acc. to IEC 60947-2 / rated value | 15 kA |
| ● acc. to EN 60898 / rated value | 6 kA |
| ● acc. to IEC 60947-2 / rated value | 30 kA |
| energy limitation class | 3 |
| power loss [W] / for rated value of the current / at AC / in hot operating state / per pole | 1.3 W |
| operational current | – |
| ● at 35 °C / rated value | 3 A |
| ● at 40 °C / rated value | 2.82 A |
| ● at 45 °C / rated value | 2.72 A |
| ● at 50 °C / rated value | 2.62 A |
| ● at 55 °C / rated value | 2.52 A |
| ● at AC / rated value | 3 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 | Yes |
| ● halogen-free | Yes |
| ● sealable | Yes |
| ● silicon-free | Yes |
| product extension / installable / supplementary devices | Yes |
| breaking capacity short-circuit current (Icn) | – |
| ● at AC / acc. to UL 1077 and CSA C22.2 No.235 | 5 kA |
| connectable conductor cross-section / solid | – |
| connectable conductor cross-section / stranded | – |
| connectable conductor cross-section / finely stranded / with core end processing | – |
| AWG number / as coded connectable conductor cross section | – |
| 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 | 2 |
| 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 | 6 |
| reference code | – |
| ● acc. to DIN EN 61346-2 | F |
| ● acc. to IEC 81346-2 | F |
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