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Siemens 5SJ4202-8HG42 Miniature Circuit Breaker 2-Pole, 2A, Type D, 10kA, UL 489
Siemens 5SJ4202-8HG42 Miniature Circuit Breaker 2-Pole, 2A, Type D, 10kA, UL 489
Siemens 5SJ4202-8HG42 Miniature Circuit Breaker 2-Pole, 2A, Type D, 10kA, UL 489
Siemens 5SJ4202-8HG42 Miniature Circuit Breaker 2-Pole, 2A, Type D, 10kA, UL 489
Siemens 5SJ4202-8HG42 Miniature Circuit Breaker 2-Pole, 2A, Type D, 10kA, UL 489

SIEMENS

Siemens 5SJ4202-8HG42 Miniature Circuit Breaker 2-Pole, 2A, Type D, 10kA, UL 489 Original Brand New

Model / SKU5SJ4202-8HG42

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.

Original price was: $354.58.Current price is: $190.72.
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  • ConditionOriginal Brand New
  • Warranty12 months
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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

  • Brand: Siemens

  • Model: 5SJ4202-8HG42

  • Type: Miniature Circuit Breaker (MCB)

  • Poles: 2‑pole

  • Trip Curve: D‑curve (for high inrush applications)

  • Rated Current: 2 A

  • Breaking Capacity: 10 kA

  • Standards: UL 489 certified

  • Rated Voltage: 480Y/277 V AC

  • Compact & Durable Design

  • Easy DIN‑Rail Installation

Benefit

  • Enhanced Safety: Certified according to UL 489 and CSA C22.2 for reliable branch circuit protection.

  • High Breaking Capacity: Rated for 10kA switching capacity, ensuring durability during electrical faults.

  • Space Efficient: Compact 2-pole design allows for streamlined DIN rail mounting in control cabinets.

  • Global Compatibility: Designed to meet international standards, making it suitable for export-oriented machinery.

Function & Application

Perfect for:

  • Industrial electrical panels

  • Motor control circuits

  • Commercial buildings

  • HVAC systems

  • Backup power circuits

  • Inductive loads where high starting current occurs

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Datasheet in PDF

Specifications

SKU / Model5SJ4202-8HG42
BrandSIEMENS
product brand nameSENTRON
product designationMiniature circuit breakers
design of the productMiniature circuit-breaker 5SJ4
number of poles2
tripping characteristic classD
mechanical service life (switching cycles) / typical10 000
installation environment regarding EMCSuitable for environment B (immunity to interference not applicable)
reference code / acc. to DIN 40719 extended according to IEC 204-2 / acc. to IEC 750F
overvoltage category3
degree of pollution3
type of voltage / of the operating voltageAC/DC
insulation voltage (Ui) / at AC / rated value440 V
supply voltage / at AC / rated value400 V
operating voltage-
● at AC / acc. to UL 489 and CSA C22.2 No. 5-02 / maximum277 V
● at DC / rated value / maximum60 V
● at DC / single channel / acc. to UL 489 and CSA C22.2 No. 5-02 / maximum60 V
● at DC / 2-channel / acc. to UL 489 and CSA C22.2 No. 5-02 / maximum125 V
protection class IPIP20, with connected conductors, IP 40 in the handle range
switching capacity current-
● acc. to EN 60898 / rated value10 kA
● acc. to IEC 60947-2 / rated value15 kA
power loss [W] / for rated value of the current / at AC / in hot operating state / per pole1.8 W
operational current-
● at 30 °C / rated value2 A
● at 40 °C / rated value2 A
● at 45 °C / rated value1.9 A
● at 50 °C / rated value1.9 A
● at 55 °C / rated value1.8 A
● at 60 °C / rated value1.8 A
● at AC / rated value2 A
type of voltage supply / at AC / acc. to UL 489 and CSA C22.2 No. 5-02480/277
suitability for operationMechanical engineering / industry
product component / neutral conductor switchingNo
product feature / touch protectionYes
product component-
● tunnel terminals topNo
● tunnel terminals bottomNo
● combined terminal topYes
● combined terminal bottomYes
product feature-
● halogen-freeYes
● sealableYes
● silicon-freeYes
product extension / installable / supplementary devicesYes
product function / noteTerminal 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.23510 kA
connectable conductor cross-section / finely stranded / with core end processing-
tightening torque / with screw-type terminals / maximum3.5 N·m
position / of power supply cordAny
installation depth70 mm
number of modular width units2
fastening methodon standard mounting rail
mounting positionany
vibration resistance50 m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec)
ambient temperature / during operation-
ambient temperature / during storage-
● minimum-40 °C
● maximum75 °C
reference code-
● acc. to DIN EN 61346-2F
● acc. to IEC 81346-2F
Miscellaneous-
Weight0.335 kg
Dimensions40.00 × 125.00 × 84.00 mm

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