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Siemens 5SY6203-7 Miniature Circuit Breaker 2-Pole, 3A, Type C, 6kA, 400V
Siemens 5SY6203-7 Miniature Circuit Breaker 2-Pole, 3A, Type C, 6kA, 400V
Siemens 5SY6203-7 Miniature Circuit Breaker 2-Pole, 3A, Type C, 6kA, 400V
Siemens 5SY6203-7 Miniature Circuit Breaker 2-Pole, 3A, Type C, 6kA, 400V
Siemens 5SY6203-7 Miniature Circuit Breaker 2-Pole, 3A, Type C, 6kA, 400V
Siemens 5SY6203-7 Miniature Circuit Breaker 2-Pole, 3A, Type C, 6kA, 400V

SIEMENS

Siemens 5SY6203-7 Miniature Circuit Breaker 2-Pole, 3A, Type C, 6kA, 400V Original Brand New

Model / SKU5SY6203-7

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.

Original price was: $73.44.Current price is: $38.17.
In stockShips in 1–3 business days
  • ConditionOriginal Brand New
  • Warranty12 months
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Description

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

  • Precision Protection: Specialized 3 Amp rating for low-current sensitive applications.

  • Durable Design: 6kA breaking capacity ensures safety during high-fault current events.5

  • Space Efficient: Standard $70\text{ mm}$ mounting depth for easy integration into control panels and distribution boards.

  • Type C Curve: Optimized for switching applications where slight surges occur, preventing nuisance tripping.

  • Global Standards: Complies with international safety standards for industrial and commercial use.

Technical Function

  • Overload Protection: Thermal release mechanism protects wiring from sustained overcurrent.

  • Short-Circuit Protection: Instantaneous electromagnetic release for immediate disconnection during faults.

  • Safe Isolation: Provides clear indication of contact position for maintenance safety.

Application

  • Power distribution panels

  • Control cabinets

  • Industrial automation systems

  • Commercial and residential electrical installations

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Datasheet in PDF

Specifications

SKU / Model5SY6203-7
BrandSIEMENS
product brand nameSENTRON
product designationMiniature circuit breaker
number of poles2
design of pole2P
tripping characteristic classC
mechanical service life (switching cycles) / typical10 000
overvoltage categoryIII
degree of pollution3
type of voltage / of the operating voltageAC
insulation voltage (Ui)-
● with single-phase operation / at AC / rated value440 V
● with multi-phase operation / at AC / rated value440 V
supply voltage / with single-phase operation / at AC / rated value230 V
supply voltage-
operating voltage / at DC / rated value / maximum72 V
protection class IPIP20, with connected conductors
switching capacity current-
● at DC / acc. to IEC 60947-2 / rated value15 kA
● acc. to EN 60898 / rated value6 kA
● acc. to IEC 60947-2 / rated value30 kA
energy limitation class3
power loss [W] / for rated value of the current / at AC / in hot operating state / per pole1.3 W
operational current-
● at 35 °C / rated value3 A
● at 40 °C / rated value2.82 A
● at 45 °C / rated value2.72 A
● at 50 °C / rated value2.62 A
● at 55 °C / rated value2.52 A
● at AC / rated value3 A
suitability for operationMechanical engineering / industry
product component / neutral conductor switchingNo
product feature / touch protectionYes
product component-
● combined terminal topYes
● combined terminal bottomYes
product feature-
● properties for main switches in accordance with EN 60204-1Yes
● halogen-freeYes
● sealableYes
● silicon-freeYes
product extension / installable / supplementary devicesYes
breaking capacity short-circuit current (Icn)-
● at AC / acc. to UL 1077 and CSA C22.2 No.2355 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 cordAny
installation depth70 mm
number of modular width units2
fastening methodQuick assembly system
mounting positionany
influence of the surrounding temperaturemax. 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
● maximum75 °C
number of test cycles / for environmental testing / acc. to IEC 60068-2-306
reference code-
● acc. to DIN EN 61346-2F
● acc. to IEC 81346-2F
Weight0.306 kg
Dimensions40.00 × 92.00 × 84.00 mm

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