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Siemens 5SJ4330-7HG42 Miniature Circuit Breaker 3-Pole, 30A, Class C, 10kA, UL 489
Siemens 5SJ4330-7HG42 Miniature Circuit Breaker 3-Pole, 30A, Class C, 10kA, UL 489
Siemens 5SJ4330-7HG42 Miniature Circuit Breaker 3-Pole, 30A, Class C, 10kA, UL 489
Siemens 5SJ4330-7HG42 Miniature Circuit Breaker 3-Pole, 30A, Class C, 10kA, UL 489
Siemens 5SJ4330-7HG42 Miniature Circuit Breaker 3-Pole, 30A, Class C, 10kA, UL 489

SIEMENS

Siemens 5SJ4330-7HG42 Miniature Circuit Breaker 3-Pole, 30A, Class C, 10kA, UL 489 Original Brand New

Model / SKU5SJ4330-7HG42

High-performance, 3-pole miniature circuit breaker designed for industrial applications. Rated at 30 Amps with a Class C tripping characteristic, it provides reliable protection against short circuits and overloads in accordance with UL 489 standards for 480Y/277V systems.

Original price was: $464.25.Current price is: $249.71.
In stockShips in 1–3 business days
  • ConditionOriginal Brand New
  • Warranty12 months
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Description

Overview

The Siemens 5SJ4330-7HG42 is part of the Sentron series, engineered specifically for the North American market while maintaining global versatility. This 3-pole circuit breaker is built to handle demanding electrical environments, offering a 10kA interrupting capacity. It is an ideal solution for feeder and branch circuit protection in industrial control panels and machinery.

Key Benefit

  • Global Compliance: Fully certified to UL 489 and CSA standards, making it suitable for export and domestic use.

  • Space-Saving Design: Compact modular width allows for efficient use of DIN rail space.

  • Enhanced Safety: Provides superior protection for sensitive industrial equipment against current spikes.

  • Ease of Installation: Features standardized mounting and terminal connections for rapid integration.

Technical Function

  • Overload Protection: Thermal tripping element for long-term overcurrent.

  • Short-Circuit Protection: Magnetic tripping element (Class C) for high-current faults.

  • Voltage Support: Optimized for 480Y/277V AC electrical systems.

  • Switching Capacity: Rated for a 10kA breaking capacity to ensure system integrity during faults.

Application

  • Industrial electrical distribution
  • Commercial buildings and facilities
  • Control panels and switchboards
  • Motors, HVAC, lighting circuits

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Datasheet in PDF

Specifications

SKU / Model5SJ4330-7HG42
BrandSIEMENS
product brand nameSENTRON
product designationMiniature circuit breakers
design of the productMiniature circuit-breaker 5SJ4
number of poles3
tripping characteristic classC
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 pole3.4 W
operational current-
● at 30 °C / rated value30 A
● at 40 °C / rated value30 A
● at 45 °C / rated value29.1 A
● at 50 °C / rated value28.5 A
● at 55 °C / rated value27.8 A
● at 60 °C / rated value27 A
● at AC / rated value30 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 units3
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-
Weight0.503 kg
Dimensions57.00 × 125.00 × 84.00 mm

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