Siemens 5SY5120-7 Miniature Circuit Breaker 1-Pole, 20A, Type C, Universal Current Original Brand New
$62.57
High-performance 1-pole miniature circuit breaker designed for universal current applications. Featuring a 20A rated current and Type C tripping characteristic, it provides reliable protection for 220V DC and 230/400V AC circuits with a 10kA switching capacity.
Availability: In stock
Overview
The Siemens 5SY5120-7 is part of the premium Sentron series, engineered for demanding industrial and residential electrical environments. This “Universal Current” (UC) device is uniquely designed to handle both AC and DC voltages, making it an incredibly versatile component for solar (PV) systems, industrial control panels, and automation infrastructure.
Key Benefit
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Dual Voltage Versatility: Specifically rated for both AC and DC applications, reducing inventory complexity.
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Enhanced Safety: The Type C tripping characteristic is ideal for circuits with higher peak starting currents (like motors or lamps).
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High Breaking Capacity: Rated at 10kA, ensuring the device can safely interrupt significant fault currents.
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Compact Design: 1-pole configuration saves valuable rail space in electrical cabinets.
Function & Features
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Tripping Characteristic: Type C (Standard protection for inductive loads).
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Universal Current (UC): Rated for 220V DC and 230/400V AC.
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Rated Current: 20 Amperes.
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Mounting: Standard DIN rail mounting for easy installation.
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Durability: Built to Siemens’ rigorous industrial quality standards for long-term mechanical and electrical life.
Technical Specification
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Brand: Siemens
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Product Number: 5SY5120-7
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Rated Current: 20A
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Tripping Characteristic: C-Curve
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Number of Poles: 1-Pole
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Rated Voltage:
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220 V DC
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230/400 V AC
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Breaking Capacity: 10kA
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Mounting Type: DIN Rail
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| Weight | 0.167 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/DC |
| 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 | – |
| ● at DC / rated value | 220 V |
| operating voltage / at DC / rated value / maximum | 250 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 |
| 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 | universal current |
| 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 DC / acc. to EN 60898-2 | 10 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 | AC as required, observe DC polarity |
| 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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