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Siemens Miniature Circuit Breaker: 0.5 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp - D-Curve, 3-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
SiemensD-Curve, 3-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers

Siemens Miniature Circuit Breaker: 0.5 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp

The SIEMENS IEC Miniature Circuit Breaker (SKU 5SJ43058HG42, MPN 5SJ43058HG42) is a D-Curve, 3-Pole UL489 DIN Rail-Mount unit rated at 0.5 A Amps. It features a Max. AIR Rating of 10kA at 277/480V AC, a DC Voltage…

SKU 3G-OTH-20879

Brand
Siemens
Item
Miniature Circuit Breaker: 0.5 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp
Category
D-Curve, 3-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Siemens
Manufacturer Part Number
5SJ43058HG42
Type
10kA at 277/480V AC, Screw Clamp, D
DC
125V
Max. AIR Rating
10kA at 277/480V AC
DC Voltage Rating
125V DC
Terminal Connection
Screw Clamp

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Miniature Circuit Breaker (SKU 5SJ43058HG42, MPN 5SJ43058HG42) is a D-Curve, 3-Pole UL489 DIN Rail-Mount unit rated at 0.5 A Amps. It features a Max. AIR Rating of 10kA at 277/480V AC, a DC Voltage Rating of 125V DC, and a Screw Clamp terminal connection.

Frequently Asked Questions

What is the SIEMENS 5SJ43058HG42 miniature circuit breaker used for?

The SIEMENS 5SJ43058HG42 is a D-Curve, 3-Pole UL489 DIN Rail-Mount miniature circuit breaker rated at 0.5 A Amps. It is used for protecting industrial equipment and branch circuits against overloads and short circuits, particularly in applications requiring DC voltage up to 125V DC or AC systems up to 277/480V AC.

What are the specifications of the SIEMENS 5SJ43058HG42 circuit breaker?

The SIEMENS 5SJ43058HG42 is a D-Curve, 3-Pole UL489 miniature circuit breaker with a current rating of 0.5 A Amps. It has a Max. AIR Rating of 10kA at 277/480V AC, a DC Voltage Rating of 125V DC, and a Screw Clamp terminal connection. The MPN is 5SJ43058HG42 and SKU is 3G-OTH-20879.

Where to buy the SIEMENS 5SJ43058HG42 circuit breaker worldwide?

You can source the SIEMENS 5SJ43058HG42 miniature circuit breaker from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this D-Curve, 3-Pole UL489 unit.

How to install the SIEMENS 5SJ43058HG42 miniature circuit breaker?

Install the SIEMENS 5SJ43058HG42 by snapping it onto a standard DIN rail. Ensure the circuit is de-energized, then connect wires using the Screw Clamp terminals with the correct torque per SIEMENS guidelines. Verify the D-Curve trip characteristic matches your load type before energizing.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens d-curve, 3-pole ul489 din rail-mount miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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