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Siemens Miniature Circuit Breaker: 8 A Amps, 125V DC, 10kA at 277/480V AC - 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: 8 A Amps, 125V DC, 10kA at 277/480V AC

The SIEMENS IEC Miniature Circuit Breaker (SKU 30YD32, MPN 5SJ43088HG42) is a D-Curve, 3-Pole UL489 DIN Rail-Mount unit rated at 8 A Amps. It features a Max. AIR Rating of 10kA at 277/480V AC, a DC Voltage Rating of…

SKU 3G-OTH-20381

Brand
Siemens
Item
Miniature Circuit Breaker: 8 A Amps, 125V DC, 10kA at 277/480V AC
Category
D-Curve, 3-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
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Technical Specifications

Siemens
Manufacturer Part Number
5SJ43088HG42
Type
10kA at 277/480V AC, Screw Clamp
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 30YD32, MPN 5SJ43088HG42) is a D-Curve, 3-Pole UL489 DIN Rail-Mount unit rated at 8 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 5SJ43088HG42 miniature circuit breaker used for?

The SIEMENS 5SJ43088HG42 is a D-Curve, 3-Pole UL489 DIN Rail-Mount miniature circuit breaker rated at 8 A. It protects industrial equipment and branch circuits against overloads and short circuits in AC systems up to 277/480V and DC systems up to 125V.

What are the specifications of the SIEMENS 5SJ43088HG42?

This SIEMENS IEC miniature circuit breaker (MPN 5SJ43088HG42) is rated 8 A, 3-pole, D-Curve. 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. It is UL489 listed for DIN rail mounting.

Where to buy the SIEMENS 5SJ43088HG42 worldwide?

3G Electric supplies the SIEMENS 5SJ43088HG42 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 (125V DC for the 5SJ43088HG42) and ensure the current rating (8 A) matches your load. The D-Curve trip characteristic handles high inrush currents from motors or transformers. Always follow local electrical codes.

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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