Siemens 5SJ4111-7HG42 Sentron Miniature Circuit Breaker 1-Pole, 5A, Class C, 10kA, UL 489 Original Brand New
$56.96
High-performance 1-pole miniature circuit breaker designed for superior branch circuit protection. Featuring a 5A current rating and Class C tripping characteristic, this unit is fully compliant with UL 489 standards for 277V AC applications, ensuring safety and reliability in demanding industrial environments.
Availability: In stock
Overview
The Siemens 5SJ4111-7HG42 belongs to the renowned Sentron family, specifically engineered for the North American market. This miniature circuit breaker (MCB) provides robust protection against overloads and short circuits. Its compact design and 10kA breaking capacity make it an ideal choice for feeder and branch circuit protection in electrical panels and machinery.
Key Benefit
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North American Compliance: Fully certified under UL 489, allowing for use as a branch circuit protector in various industrial applications.
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Enhanced Safety: Provides a high interrupting capacity of 10kA, significantly reducing the risk of equipment damage during electrical faults.
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Reliable Performance: The Class C tripping curve is optimized for circuits with moderate inrush currents, such as lighting and small motor loads.
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Space-Saving Design: The 1-pole, compact construction allows for efficient use of space within control cabinets.
Technical Function
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Overload Protection: Thermal tripping element handles sustained over-current conditions.
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Short-Circuit Protection: Electromagnetic instantaneous tripping for immediate disconnection during faults.
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Versatile Mounting: Designed for easy installation on standard DIN rails.
Technical Specification
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Manufacturer: Siemens
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Product Number: 5SJ4111-7HG42
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Breaking Capacity: 10kA
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Number of Poles: 1-Pole
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Tripping Curve: C Curve
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Rated Current: 5 A
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Standard: UL 489
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Rated Voltage: 277V
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| Weight | 0.174 kg |
|---|---|
| Dimensions | 22.00 × 125.00 × 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 | 277 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 | 2.9 W |
| operational current | – |
| ● at 30 °C / rated value | 5 A |
| ● at 40 °C / rated value | 5 A |
| ● at 45 °C / rated value | 4.9 A |
| ● at 50 °C / rated value | 4.8 A |
| ● at 55 °C / rated value | 4.6 A |
| ● at 60 °C / rated value | 4.5 A |
| ● at AC / rated value | 5 A |
| type of voltage supply / at AC / acc. to UL 489 and CSA C22.2 No. 5-02 | 480/277 |
| 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 | 10 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 |
| Miscellaneous | – |
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