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Siemens Miniature Circuit Breaker: 3 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: 3 A Amps, 125V DC, 10kA at 277/480V AC, Screw Clamp

The SIEMENS IEC Miniature Circuit Breaker (MPN 5SJ43038HG42) is a 3 A, 3-pole, D-curve, UL489 DIN rail-mount unit. It features a 10kA AIR rating at 277/480V AC and a 125V DC voltage rating, with screw clamp terminals.

SKU 3G-OTH-20942

Brand
Siemens
Item
Miniature Circuit Breaker: 3 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
5SJ43038HG42
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 (MPN 5SJ43038HG42) is a 3 A, 3-pole, D-curve, UL489 DIN rail-mount unit. It features a 10kA AIR rating at 277/480V AC and a 125V DC voltage rating, with screw clamp terminals.

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 5SJ43038HG42 miniature circuit breaker used for?

The SIEMENS 5SJ43038HG42 is a 3 A, 3-pole, D-curve miniature circuit breaker used for overcurrent protection in industrial control panels, motor circuits, and DC applications up to 125V DC. Its D-curve trip characteristic handles high inrush loads like motors and transformers.

What are the specifications of the SIEMENS 5SJ43038HG42?

This SIEMENS IEC miniature circuit breaker is rated 3 A, 3-pole, D-curve, with a max AIR of 10kA at 277/480V AC and a DC voltage rating of 125V DC. It uses screw clamp terminals and is UL489 listed for DIN rail mounting.

Where to buy the SIEMENS 5SJ43038HG42 worldwide?

3G Electric supplies the SIEMENS 5SJ43038HG42 miniature circuit breaker worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this D-curve, 3-pole UL489 unit.

How to select the right D-curve miniature circuit breaker for motor protection?

For motor protection, select a D-curve breaker like the SIEMENS 5SJ43038HG42 because it tolerates high inrush currents without nuisance tripping. Match the amp rating to the motor full-load current and verify the interrupting rating (10kA at 277/480V AC) exceeds available fault current.

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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