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Siemens 5SJ41058HG42 D-Curve 1-Pole UL489 Miniature Circuit Breaker - D-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
SiemensD-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers

Siemens 5SJ41058HG42 D-Curve 1-Pole UL489 Miniature Circuit Breaker

The SIEMENS IEC Miniature Circuit Breaker (SKU 5SJ41058HG42, MPN 5SJ41058HG42) is a D-Curve, 1-Pole UL489 DIN Rail-Mount unit rated at 0.5 A Amps. It features an AC voltage rating of 277V AC, a DC voltage rating of…

SKU 3G-OTH-22169

Brand
Siemens
Item
5SJ41058HG42 D-Curve 1-Pole UL489 Miniature Circuit Breaker
Category
D-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Siemens
Manufacturer Part Number
5SJ41058HG42
Type
10kA at 277V AC, Screw Clamp, 5SJ4, AC/DC
DC
60V
Max. AIR Rating
10kA at 277V AC
AC Voltage Rating
277V AC
DC Voltage Rating
60V DC
Terminal Connection
Screw Clamp

Technical Documents

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

Product Description

The SIEMENS IEC Miniature Circuit Breaker (SKU 5SJ41058HG42, MPN 5SJ41058HG42) is a D-Curve, 1-Pole UL489 DIN Rail-Mount unit rated at 0.5 A Amps. It features an AC voltage rating of 277V AC, a DC voltage rating of 60V DC, and a maximum AIR rating of 10kA at 277V AC. The terminal connection is a screw clamp.

Frequently Asked Questions

What is the SIEMENS 5SJ41058HG42 miniature circuit breaker used for?

The SIEMENS 5SJ41058HG42 is a D-Curve, 1-pole UL489 miniature circuit breaker rated at 0.5 A. It protects branch circuits in industrial control panels, HVAC equipment, and lighting systems against overloads and short circuits, handling both 277V AC and 60V DC applications.

What are the specifications of the SIEMENS 5SJ41058HG42?

This SIEMENS IEC miniature circuit breaker (MPN 5SJ41058HG42) is rated 0.5 A, 277V AC / 60V DC, with a maximum AIR of 10kA at 277V AC. It features a D-Curve trip characteristic, 1-pole design, screw-clamp terminals, and UL489 listing for DIN-rail mounting.

Where to buy the SIEMENS 5SJ41058HG42 worldwide?

3G Electric supplies the SIEMENS 5SJ41058HG42 miniature circuit breaker to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this UL489-listed 0.5 A, 277V AC / 60V DC unit.

How to select the right SIEMENS miniature circuit breaker for a 60V DC application?

For a 60V DC circuit, choose a breaker with a DC voltage rating at or above your system voltage, like the SIEMENS 5SJ41058HG42 rated 60V DC. Verify the current rating (0.5 A here) matches your load, and confirm the D-Curve trip characteristic suits motor or transformer inrush currents.

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, 1-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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