SIEMENS
Siemens 5SJ4202-8HG42 Miniature Circuit Breaker 2-Pole, 2A, Type D, 10kA, UL 489 Original Brand New
High-performance, 2-pole miniature circuit breaker designed for industrial applications. Featuring a 2A current rating and Type D tripping characteristic, it provides robust protection against high-inrush currents in 480Y/277V systems.
- ConditionOriginal Brand New
- Warranty12 months
- Genuine Products
- Up to 1-Year Warranty
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Description
Overview
The Siemens 5SJ4202-8HG42 is a professional-grade Miniature Circuit Breaker (MCB) specifically engineered for the North American market. Meeting the stringent UL 489 standards, this 2-pole breaker offers reliable protection for electrical installations against overloads and short circuits. It is an ideal solution for branch circuit protection in industrial environments where precision and safety are non-negotiable.
Key Features
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Brand: Siemens
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Model: 5SJ4202-8HG42
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Type: Miniature Circuit Breaker (MCB)
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Poles: 2‑pole
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Trip Curve: D‑curve (for high inrush applications)
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Rated Current: 2 A
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Breaking Capacity: 10 kA
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Standards: UL 489 certified
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Rated Voltage: 480Y/277 V AC
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Compact & Durable Design
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Easy DIN‑Rail Installation
Benefit
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Enhanced Safety: Certified according to UL 489 and CSA C22.2 for reliable branch circuit protection.
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High Breaking Capacity: Rated for 10kA switching capacity, ensuring durability during electrical faults.
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Space Efficient: Compact 2-pole design allows for streamlined DIN rail mounting in control cabinets.
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Global Compatibility: Designed to meet international standards, making it suitable for export-oriented machinery.
Function & Application
Perfect for:
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Industrial electrical panels
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Motor control circuits
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Commercial buildings
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HVAC systems
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Backup power circuits
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Inductive loads where high starting current occurs
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Specifications
| SKU / Model | 5SJ4202-8HG42 |
|---|---|
| Brand | SIEMENS |
| product brand name | SENTRON |
| product designation | Miniature circuit breakers |
| design of the product | Miniature circuit-breaker 5SJ4 |
| number of poles | 2 |
| 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 | 1.8 W |
| operational current | - |
| ● at 30 °C / rated value | 2 A |
| ● at 40 °C / rated value | 2 A |
| ● at 45 °C / rated value | 1.9 A |
| ● at 50 °C / rated value | 1.9 A |
| ● at 55 °C / rated value | 1.8 A |
| ● at 60 °C / rated value | 1.8 A |
| ● at AC / rated value | 2 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 | 2 |
| 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 | 0.335 kg |
| Dimensions | 40.00 × 125.00 × 84.00 mm |
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