SIEMENS
High-performance miniature circuit breaker (MCB) designed for superior protection of electrical circuits. Featuring a 3-pole configuration, 30A rated current, and a 10kA breaking capacity, this Type C breaker ensures reliable safety in industrial and commercial applications.
The Siemens 5SY4 series is the industry standard for reliable circuit protection. The 5SY4330-7 is specifically engineered to protect systems against overloads and short circuits. With a 70mm installation depth and a rugged design, it integrates seamlessly into standard distribution boards and control cabinets. Its Type C tripping characteristic makes it ideal for circuits with higher inrush currents, such as motors and lighting systems.
Enhanced Safety: Provides reliable disconnection during electrical faults, protecting both personnel and equipment.
Compact Design: The 70mm depth and standard modular width save valuable space in electrical panels.
Global Standards: Fully compliant with international safety standards, ensuring suitability for global export projects.
Durability: Built with high-quality materials to ensure a long mechanical and electrical service life.
Short-Circuit Protection: Instantaneous tripping at 10kA to prevent damage from massive current surges.
Overload Protection: Thermal tripping mechanism to safeguard wiring from overheating.
Manual Switching: Ergonomic handle for easy manual circuit isolation during maintenance.
Product Number: Siemens 5SY4330-7
Rated Voltage: 400 V
Rated Current: 30 A
Breaking Capacity: 10 kA
Number of Poles: 3-Pole
Tripping Characteristic: C-Curve
Depth (D): 70 mm
Product Type: Miniature Circuit Breaker (MCB)
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| SKU / Model | 5SY4330-7 |
|---|---|
| Brand | SIEMENS |
| product brand name | SENTRON |
| product designation | Miniature circuit breaker |
| number of poles | 3 |
| design of pole | 3P |
| 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 | - |
| 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 | 10 kA |
| ● acc. to IEC 60947-2 / rated value | 20 kA |
| energy limitation class | 3 |
| power loss [W] / for rated value of the current / at AC / in hot operating state / per pole | 2.3 W |
| operational current | - |
| ● at 35 °C / rated value | 30 A |
| ● at 40 °C / rated value | 28.56 A |
| ● at 45 °C / rated value | 27.81 A |
| ● at 50 °C / rated value | 27.06 A |
| ● at 55 °C / rated value | 26.25 A |
| ● at 60 °C / rated value | 25.44 A |
| ● at AC / rated value | 30 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 | 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 | 6 |
| reference code | - |
| ● acc. to DIN EN 61346-2 | F |
| ● acc. to IEC 81346-2 | F |
| Weight | 0.469 kg |
| Dimensions | 58.00 × 94.00 × 84.00 mm |
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