Siemens 5SY6304-7 Miniature Circuit Breaker 400 V, 6kA, 3‑Pole, C‑Type, 4A, D=70 mm Original Brand New
$100.64
High-performance 3-pole Miniature Circuit Breaker (MCB) designed for 400V systems. Featuring a 4A rated current and a C-type tripping characteristic, it provides reliable protection for electrical circuits against overloads and short circuits with a 6kA breaking capacity.
Availability: In stock
Overview
The Siemens 5SY6304-7 belongs to the premier SENTRON series of protection devices. Specifically engineered for industrial and commercial applications, this MCB ensures maximum safety and system availability. With a compact mounting depth of 70 mm, it integrates seamlessly into standard distribution boards and control cabinets.
Key Benefit
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Enhanced Safety: Provides superior protection for cables and systems against thermal overload and short-circuit faults.
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Reliable Performance: The C-tripping characteristic is ideal for circuits with higher inrush currents, such as motors and lighting groups.
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Compact Design: The 70 mm installation depth saves valuable space in electrical enclosures.
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Global Standards: Fully compliant with international safety standards for industrial use.
Function
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Short-Circuit Protection: Immediate disconnection in the event of a high-current fault (6kA capacity).
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Overload Protection: Delayed tripping to prevent damage from sustained over-current.
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Manual Switching: Ergonomic handle allows for easy manual isolation of the circuit for maintenance.
Technical Specification
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Part Number: 5SY6304-7
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Number of Poles: 3-Pole
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Tripping Curve: C-Characteristic
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Rated Current: 4 Ampere
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Operating Voltage: 400 V AC
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Breaking Capacity: 6 kA
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Dimensions: 70 mm depth
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| Weight | 0.461 kg |
|---|---|
| Dimensions | 58.00 × 94.00 × 84.00 mm |
| 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 / 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 | 4 A |
| ● at 45 °C / rated value | 3.71 A |
| ● at 50 °C / rated value | 3.61 A |
| ● at 55 °C / rated value | 3.5 A |
| ● at AC / rated value | 4 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 |
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