Siemens 5SY4218-7 Miniature Circuit Breaker 15A, 2-Pole, C-Curve, 10kA, 400V Original Brand New
$78.17
High-performance 2-pole miniature circuit breaker designed for 400V systems. Featuring a 15A rated current and a Type C tripping characteristic, it provides robust protection against overloads and short circuits with a 10kA breaking capacity.
Availability: In stock
Overview
The Siemens 5SY4218-7 Miniature Circuit Breaker (MCB) is a high-performance electrical protection device designed for reliable overload and short-circuit protection in low-voltage electrical systems. Built to Siemens’ renowned engineering standards, this 2-pole MCB delivers consistent performance in residential, commercial, and industrial applications.
With a rated voltage of 400 V, breaking capacity of 10 kA, and C-curve tripping characteristic, it ensures safe and stable circuit protection for moderately inductive loads.
Benefit
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High breaking capacity of 10kA for enhanced safety
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C-curve tripping ideal for standard industrial and commercial loads
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2-pole design for simultaneous disconnection of live conductors
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Compact size with 70 mm depth for easy DIN-rail installation
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Long service life with Siemens quality assurance
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Reliable protection against overloads and short circuits
Function
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Protects electrical circuits from overcurrent and short-circuit faults
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Automatically interrupts power during abnormal conditions
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Ensures operational safety for electrical installations
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Supports stable power distribution in control panels and switchboards
Technical Specification
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Brand: Siemens
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Model: 5SY4218-7
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Type: Miniature Circuit Breaker (MCB)
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Rated Voltage: 400 V
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Rated Current: 15 A
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Poles: 2-Pole
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Tripping Curve: C
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Breaking Capacity: 10 kA
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Depth (D): 70 mm
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Mounting: DIN Rail
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| Weight | 0.304 kg |
|---|---|
| Dimensions | 93.00 × 216.00 × 82.00 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 | – |
| 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 | 1.5 W |
| operational current | – |
| ● at 35 °C / rated value | 15 A |
| ● at 45 °C / rated value | 13.9 A |
| ● at 50 °C / rated value | 13.53 A |
| ● at 55 °C / rated value | 13.12 A |
| ● at 60 °C / rated value | 12.72 A |
| ● at AC / rated value | 15 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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