SIEMENS
High-performance 3-pole miniature circuit breaker designed for industrial branch circuit protection. Rated at 5A with a Type C tripping characteristic, it offers a 10kA interrupting capacity and complies strictly with UL 489 standards for 480Y/277V systems.
The Siemens 5SJ4311-7HG42 Circuit Breaker is a high-performance, 3-pole circuit breaker designed to provide reliable protection for your electrical systems. With a rated breaking capacity of 10kA and a current rating of 5A, it ensures safe and efficient operation in various applications. This UL 489-480Y/277V certified circuit breaker is built to withstand demanding conditions, offering long-lasting protection for your electrical installations.
High Breaking Capacity: With a 10kA rated breaking capacity, the Siemens 5SJ4311-7HG42 ensures protection against short circuits and overloads, preventing potential damage to your equipment and systems.
Reliable Protection: Designed for 3-phase applications, it offers stable and consistent protection across multiple electrical circuits.
UL Certification: The UL 489-480Y/277V certification ensures that this circuit breaker complies with the highest safety standards.
Versatile Use: Suitable for a wide range of industrial and commercial applications where dependable circuit protection is needed.
Rated Current: 5A
Poles: 3-pole configuration for optimal performance in 3-phase systems
Breaking Capacity: 10kA for high short-circuit protection
Standards Compliance: UL 489-480Y/277V certified, meeting global safety standards
Type: C curve, providing optimal trip characteristics for general industrial use
The Siemens 5SJ4311-7HG42 Circuit Breaker is designed to protect electrical circuits from overcurrent, short circuits, and other potential faults. When an electrical fault occurs, the breaker instantly trips, disconnecting the affected circuit to prevent damage to wiring, components, and connected equipment. The 3-pole design makes it ideal for use in 3-phase electrical systems, providing protection to all phases.
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| SKU / Model | 5SJ4311-7HG42 |
|---|---|
| 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 | 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 |
| 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 | 2.9 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 | 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 | - |
| Weight | 0.494 kg |
| Dimensions | 57.00 × 125.00 × 84.00 mm |
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