Siemens 5SJ4108-7HG41 Miniature Circuit Breaker 1-Pole, 8A, 240V, 14kA, Type C, UL 489 Rated Original Brand New
$45.85
High-performance 1-pole miniature circuit breaker (MCB) designed for superior branch circuit protection. Featuring an 8A current rating and a Type C tripping characteristic, this unit is certified according to UL 489 standards, ensuring safety and reliability in demanding industrial and commercial environments.
Availability: In stock
Overview
The Siemens 5SJ4 series is engineered for global applications, specifically meeting the rigorous safety requirements of the North American market. The 5SJ4108-7HG41 provides robust protection against overloads and short circuits. With its compact 70mm depth and DIN rail mounting capability, it integrates seamlessly into modern control cabinets.
Key Benefit
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Global Compliance: Fully compliant with UL 489 and CSA C22.2, making it suitable for branch circuit protection in the US and Canada.
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Enhanced Safety: Provides reliable 14kA interrupting capacity at 240V AC to protect sensitive downstream equipment.
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Space-Saving Design: Its slim 1-pole profile and 70mm mounting depth optimize panel space.
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Easy Installation: Designed for quick DIN rail mounting with secure terminal connections.
Function & Features
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Tripping Curve C: Ideal for circuits with moderate inductive loads and high inrush currents (e.g., motors, lighting loops).
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Thermal-Magnetic Trip Unit: Offers dual protection against long-term overloads and instantaneous short-circuit events.
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Visible Indicators: Clear handle positions for “ON” and “OFF” status monitoring.
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Durable Housing: Built with high-quality thermoplastic for long-term thermal stability.
Technical Specification
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Manufacturer: Siemens
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Product Number: 5SJ4108-7HG41
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Number of Poles: 1-Pole
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Rated Current: 8A
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Tripping Characteristic: Type C
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Rated Voltage: 240 V AC
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Interrupting Capacity: 14 kA
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Mounting Depth: 70 mm
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Standards: UL 489, CSA, CE
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| Weight | 0.169 kg |
|---|---|
| Dimensions | 23.00 × 114.00 × 84.00 mm |
| Brand | SIEMENS |
| product brand name | SENTRON |
| product designation | Miniature circuit breakers |
| design of the product | Miniature circuit-breaker 5SJ4 |
| number of poles | 1 |
| tripping characteristic class | C |
| mechanical service life (switching cycles) / typical | 10 000 |
| installation environment regarding EMC | Suitable for environment B (immunity to interference not applicable) |
| reference code / acc. to DIN 40719 extended according to IEC 204-2 / acc. to IEC 750 | F |
| overvoltage category | 3 |
| degree of pollution | 3 |
| insulation voltage (Ui) / at AC / rated value | 440 V |
| supply voltage / at AC / rated value | 400 V |
| operating voltage | – |
| ● at AC / acc. to UL 489 and CSA C22.2 No. 5-02 / maximum | 240 V |
| ● at DC / rated value / maximum | 60 V |
| ● at DC / single channel / acc. to UL 489 and CSA C22.2 No. 5-02 / maximum | 60 V |
| ● at DC / 2-channel / acc. to UL 489 and CSA C22.2 No. 5-02 / maximum | 125 V |
| protection class IP | IP20, with connected conductors, IP 40 in the handle range |
| switching capacity current | – |
| ● acc. to EN 60898 / rated value | 10 kA |
| ● acc. to IEC 60947-2 / rated value | 15 kA |
| power loss [W] / for rated value of the current / at AC / in hot operating state / per pole | 2.6 W |
| operational current | – |
| ● at 30 °C / rated value | 8 A |
| ● at 40 °C / rated value | 8 A |
| ● at 45 °C / rated value | 7.8 A |
| ● at 50 °C / rated value | 7.6 A |
| ● at 55 °C / rated value | 7.4 A |
| ● at 60 °C / rated value | 7.2 A |
| ● at AC / rated value | 8 A |
| type of voltage supply / at AC / acc. to UL 489 and CSA C22.2 No. 5-02 | 240 |
| suitability for operation | Mechanical engineering / industry |
| product component / neutral conductor switching | No |
| product feature / touch protection | Yes |
| product component | – |
| ● tunnel terminals top | No |
| ● tunnel terminals bottom | No |
| ● combined terminal top | Yes |
| ● combined terminal bottom | Yes |
| product feature | – |
| ● halogen-free | Yes |
| ● sealable | Yes |
| ● silicon-free | Yes |
| product extension / installable / supplementary devices | Yes |
| product function / note | Terminal tightening torque for Cu, 60/75°C; 3.5Nm/31lb.in |
| breaking capacity short-circuit current (Icn) / at AC / acc. to UL 1077 and CSA C22.2 No.235 | 14 kA |
| connectable conductor cross-section / finely stranded / with core end processing | – |
| tightening torque / with screw-type terminals / maximum | 3.5 N·m |
| position / of power supply cord | Any |
| installation depth | 70 mm |
| number of modular width units | 1 |
| fastening method | on standard mounting rail |
| mounting position | any |
| vibration resistance | 50 m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec) |
| ambient temperature / during operation | – |
| ambient temperature / during storage | – |
| ● minimum | -40 °C |
| ● maximum | 75 °C |
| reference code | – |
| ● acc. to DIN EN 61346-2 | F |
| ● acc. to IEC 81346-2 | F |
| Test Certificates | other |
| Special Test Certificate | Miscellaneous |
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