Siemens 5SJ4306-8HG42 Circuit Breaker 3-Pole, 6A, 10kA, UL 489-480Y/277V Original Brand New
$159.28
High-performance 3-pole miniature circuit breaker designed for industrial applications. Featuring a 6A current rating and a Type D tripping characteristic, this unit is certified to UL 489 standards for 480Y/277V systems, ensuring superior branch circuit protection.
Availability: In stock
Overview
The Siemens 5SJ4306-8HG42 is a specialized Miniature Circuit Breaker (MCB) engineered for demanding industrial environments. As part of the Siemens Sentron family, it provides reliable protection for electrical installations against overloads and short circuits. This model is specifically designed to meet stringent UL 489 requirements, making it suitable for use as a branch protector in North American power systems.
Key Benefit
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Global Standards Compliance: Fully compliant with UL 489 and CSA C22.2 No. 5-02 for international versatility.
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Enhanced Safety: Provides a 10kA interrupting capacity to prevent equipment damage during high-fault currents.
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Space-Saving Design: The compact 3-pole configuration allows for efficient use of space within control cabinets.
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D-Curve Protection: Specifically designed for circuits with high inrush currents, such as transformers and heavy motors.
Technical Function
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Tripping Characteristic: Type D (designed for high inductive loads).
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Breaking Capacity: 10kA at 480Y/277V AC.
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Mounting: DIN Rail mounting for quick and easy installation.
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Application: Ideal for branch circuit protection in industrial machinery, HVAC systems, and control panels.
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| Weight | 0.491 kg |
|---|---|
| Dimensions | 57.00 × 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 | 3 |
| tripping characteristic class | D |
| 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 |
| type of voltage / of the operating voltage | AC/DC |
| 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 | 2.7 W |
| operational current | – |
| ● at 30 °C / rated value | 6 A |
| ● at 40 °C / rated value | 6 A |
| ● at 45 °C / rated value | 5.8 A |
| ● at 50 °C / rated value | 5.7 A |
| ● at 55 °C / rated value | 5.6 A |
| ● at 60 °C / rated value | 5.4 A |
| ● at AC / rated value | 6 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 | 3 |
| 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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