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Siemens 5SJ43457HG41 C-Curve 3-Pole UL489 Miniature Circuit Breaker - C-Curve, 3-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
SiemensC-Curve, 3-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers

Siemens 5SJ43457HG41 C-Curve 3-Pole UL489 Miniature Circuit Breaker

The SIEMENS Miniature Circuit Breaker (SKU 5SJ43457HG41, MPN 5SJ43457HG41) is a C-Curve, 3-Pole UL489 DIN Rail-Mount device rated for 45 A Amps. It features a Max. AIR Rating of 10 kA, a DC Voltage Rating of 60V DC…

SKU 3G-OTH-20301

Brand
Siemens
Item
5SJ43457HG41 C-Curve 3-Pole UL489 Miniature Circuit Breaker
Category
C-Curve, 3-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
5SJ43457HG41
Type
10 kA, Screw Clamp, C
AC
240V
DC
60V
Max. AIR Rating
10 kA
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 Miniature Circuit Breaker (SKU 5SJ43457HG41, MPN 5SJ43457HG41) is a C-Curve, 3-Pole UL489 DIN Rail-Mount device rated for 45 A Amps. It features a Max. AIR Rating of 10 kA, a DC Voltage Rating of 60V DC, and a Screw Clamp terminal connection.

Frequently Asked Questions

What is the SIEMENS 5SJ43457HG41 miniature circuit breaker used for?

The SIEMENS 5SJ43457HG41 is a C-Curve, 3-pole UL489 miniature circuit breaker rated for 45 A. It protects branch circuits in industrial control panels, DC power systems, and equipment requiring 60V DC or 240V AC, with a 10 kA interrupting capacity.

What are the specifications of the SIEMENS 5SJ43457HG41?

This SIEMENS breaker is rated 45 A, 240V AC and 60V DC, with a 10 kA max AIR rating. It uses a screw clamp terminal connection, is C-Curve trip type, 3-pole, and UL489 listed for DIN rail mounting. The MPN is 5SJ43457HG41.

Where to buy the SIEMENS 5SJ43457HG41 worldwide?

3G Electric supplies the SIEMENS 5SJ43457HG41 miniature circuit breaker worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

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

For DC applications, verify the breaker's DC voltage rating (here 60V DC) and ensure it matches your system voltage. The C-Curve trip characteristic suits moderate inrush loads like motors. Confirm the interrupting rating (10 kA) exceeds available fault current. Always follow SIEMENS guidelines.

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 c-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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