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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 30YD30, 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…

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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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
View Full Spec Sheet

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

Product Description

The SIEMENS IEC Miniature Circuit Breaker (SKU 30YD30, 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.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

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 30YD30.

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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