Siemens 5SY4120-7 Miniature Circuit Breaker 230/400V, 10kA, 1-Pole, C 20A (D=70mm) Original Brand New
$39.84
High-performance 1-pole Miniature Circuit Breaker designed for superior electrical protection. Featuring a 20A rated current and Type C tripping characteristic, it is ideal for circuits with higher inrush currents. With a 10kA breaking capacity and a compact 70mm mounting depth, it ensures safety and reliability in demanding environments.
Availability: In stock
Overview
The Siemens 5SY4120-7 is a high-performance miniature circuit breaker designed for residential, commercial, and industrial electrical systems. This 1-pole, 20A circuit breaker is ideal for protecting your electrical circuits from overloads and short circuits. It operates at 230/400V and features a 10kA breaking capacity, ensuring enhanced protection and safety.
Key Benefit
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High Breaking Capacity: With a 10kA rating, the Siemens 5SY4120-7 can withstand large fault currents, minimizing potential damage to electrical circuits and equipment.
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Compact Design: At a width of just 70mm, it offers easy integration into standard electrical panels without compromising on performance.
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Reliable Protection: Designed with a Type C characteristic, it is ideal for use in circuits with moderate inrush currents, such as lighting and heating installations.
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Easy Installation: The 1-pole configuration and straightforward design allow for quick and efficient installation in various electrical setups.
Function
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Overload Protection: The 20A current rating ensures protection against overloads, preventing circuit failure.
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Short Circuit Protection: With its 10kA breaking capacity, the circuit breaker provides reliable protection in case of short circuits, reducing the risk of fire or equipment damage.
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Single-Pole Operation: The 1-pole design is perfect for single-phase applications, protecting individual circuits in residential or light commercial environments.
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| Weight | 0.153 kg |
|---|---|
| Dimensions | 21.00 × 93.00 × 83.00 mm |
| Brand | SIEMENS |
| product brand name | SENTRON |
| product designation | Miniature circuit breaker |
| number of poles | 1 |
| design of pole | 1P |
| 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 | 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 | 1.7 W |
| operational current | – |
| ● at 35 °C / rated value | 20 A |
| ● at 40 °C / rated value | 18.78 A |
| ● at 45 °C / rated value | 18.14 A |
| ● at 50 °C / rated value | 17.48 A |
| ● at 55 °C / rated value | 16.8 A |
| ● at 60 °C / rated value | 16.08 A |
| ● at AC / rated value | 20 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 | 1 |
| 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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