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Siemens 5SJ42307HG42 C-Curve 2-Pole UL489 DIN Rail-Mount - C-Curve, 2-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
SiemensC-Curve, 2-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers

Siemens 5SJ42307HG42 C-Curve 2-Pole UL489 DIN Rail-Mount

The SIEMENS IEC Miniature Circuit Breaker (SKU 5SJ42307HG42, MPN 5SJ42307HG42) is a C-Curve, 2-Pole UL489 DIN Rail-Mount unit rated for 30 A. It carries a max. AIR rating of 10kA at 277/480V AC, with AC voltage…

SKU 3G-OTH-20990

Brand
Siemens
Item
5SJ42307HG42 C-Curve 2-Pole UL489 DIN Rail-Mount
Category
C-Curve, 2-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
5SJ42307HG42
Type
10kA at 277/480V AC, Screw Clamp, 5SJ4
DC
125V
Max. AIR Rating
10kA at 277/480V AC
AC Voltage Rating
277/480V AC
DC Voltage Rating
125V 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 5SJ42307HG42, MPN 5SJ42307HG42) is a C-Curve, 2-Pole UL489 DIN Rail-Mount unit rated for 30 A. It carries a max. AIR rating of 10kA at 277/480V AC, with AC voltage rating of 277/480V AC and DC voltage rating of 125V DC. The terminal connection is screw clamp.

Frequently Asked Questions

What is the SIEMENS 5SJ42307HG42 miniature circuit breaker used for?

The SIEMENS 5SJ42307HG42 is a C-Curve, 2-Pole UL489 DIN Rail-Mount miniature circuit breaker rated for 30 A. It protects branch circuits in industrial and commercial panels against overloads and short circuits, with a max. AIR rating of 10kA at 277/480V AC and a DC voltage rating of 125V DC.

What are the specifications of the SIEMENS 5SJ42307HG42?

The SIEMENS 5SJ42307HG42 is a 30 A, C-Curve, 2-Pole UL489 miniature circuit breaker. It has a max. AIR rating of 10kA at 277/480V AC, AC voltage rating of 277/480V AC, DC voltage rating of 125V DC, and a screw clamp terminal connection. It is DIN Rail-mountable and carries MPN 5SJ42307HG42.

Where to buy the SIEMENS 5SJ42307HG42 worldwide?

You can source the SIEMENS 5SJ42307HG42 miniature circuit breaker through 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 30 A, 2-Pole UL489 unit.

How to install the SIEMENS 5SJ42307HG42 miniature circuit breaker?

Install the SIEMENS 5SJ42307HG42 by snapping it onto a standard DIN rail. Ensure the circuit is de-energized, then connect wires to the screw clamp terminals per the torque specifications in the manufacturer's manual. Verify the C-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 c-curve, 2-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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Cross-referenced by specification & description
This 2-pole miniature circuit breaker features a C-curve trip characteristic for moderate inrush currents. Rated 32 A with a maximum AIR of 10kA at 277/480V AC and DC voltage rating of 125V DC. Terminal connection is screw clamp. Suitable for branch circuit protection in industrial and commercial panels
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This 2-pole miniature circuit breaker features a C-curve trip characteristic for moderate inrush currents. Rated 32 A with a maximum AIR of 10kA at 277/480V AC and DC voltage rating of 125V DC. Terminal connection is screw clamp. Suitable for branch circuit protection in industrial and commercial panels
This 2-pole miniature circuit breaker is rated 4A with a C-Curve trip characteristic, providing overcurrent protection for branch circuits and control panels. It is UL489 listed for DIN rail mounting, with a maximum AIR of 10kA at 277/480V AC and a DC voltage rating of 125V. Screw clamp terminals facilitate secure wiring connections
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This 2-pole miniature circuit breaker is rated 4A with a C-Curve trip characteristic, providing overcurrent protection for branch circuits and control panels. It is UL489 listed for DIN rail mounting, with a maximum AIR of 10kA at 277/480V AC and a DC voltage rating of 125V. Screw clamp terminals facilitate secure wiring connections
This 2-pole miniature circuit breaker features a C-curve trip characteristic for overcurrent protection in branch circuits and control panels. Rated 20A with a maximum interrupting rating of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals for secure wiring. The DIN rail-mount design simplifies installation in distribution boards and enclosures
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This 2-pole miniature circuit breaker features a C-curve trip characteristic for overcurrent protection in branch circuits and control panels. Rated 20A with a maximum interrupting rating of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals for secure wiring. The DIN rail-mount design simplifies installation in distribution boards and enclosures
This Siemens miniature circuit breaker is a C-curve, 2-pole unit rated at 40 A with a maximum interrupting rating of 10 kA at 277/480 V AC and a DC voltage rating of 125 V. It features screw clamp terminals and is UL489 listed for DIN rail mounting, suitable for branch circuit protection in industrial and commercial panels
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This Siemens miniature circuit breaker is a C-curve, 2-pole unit rated at 40 A with a maximum interrupting rating of 10 kA at 277/480 V AC and a DC voltage rating of 125 V. It features screw clamp terminals and is UL489 listed for DIN rail mounting, suitable for branch circuit protection in industrial and commercial panels
This miniature circuit breaker is rated 0.03 A, 2-pole, C-curve, with a maximum AIR of 10kA at 277/480V AC and 125V DC. It features screw clamp terminals and is designed for DIN rail mounting. Suitable for branch circuit protection in panelboards and control cabinets
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This miniature circuit breaker is rated 0.03 A, 2-pole, C-curve, with a maximum AIR of 10kA at 277/480V AC and 125V DC. It features screw clamp terminals and is designed for DIN rail mounting. Suitable for branch circuit protection in panelboards and control cabinets
This 2-pole miniature circuit breaker features a C-Curve trip characteristic for moderate inrush currents. Rated 10 A with a maximum AIR of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals. Suitable for overcurrent protection in industrial control panels, lighting circuits, and motor branch circuits
Siemens
This 2-pole miniature circuit breaker features a C-Curve trip characteristic for moderate inrush currents. Rated 10 A with a maximum AIR of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals. Suitable for overcurrent protection in industrial control panels, lighting circuits, and motor branch circuits

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This 2-pole miniature circuit breaker features a C-curve trip characteristic and is UL489 listed for DIN rail mounting. Rated 16A with a maximum interrupting capacity of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals. Suitable for branch circuit protection in industrial control panels, motor starters, and distribution boards
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This 2-pole miniature circuit breaker features a C-curve trip characteristic and is UL489 listed for DIN rail mounting. Rated 16A with a maximum interrupting capacity of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals. Suitable for branch circuit protection in industrial control panels, motor starters, and distribution boards
This 2-pole miniature circuit breaker features a C-Curve trip characteristic and is UL489 listed for DIN rail mounting. Rated 35A with a maximum interrupting rating of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals. Suitable for branch circuit protection in industrial control panels and distribution boards
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This 2-pole miniature circuit breaker features a C-Curve trip characteristic and is UL489 listed for DIN rail mounting. Rated 35A with a maximum interrupting rating of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals. Suitable for branch circuit protection in industrial control panels and distribution boards
This 2-pole miniature circuit breaker features a C-Curve trip characteristic and is UL489 listed for branch circuit protection. Rated 60 A at 240V AC and 60V DC with a 10 kA interrupting capacity, it uses screw clamp terminals for secure wiring. Suitable for overcurrent protection in industrial control panels, HVAC equipment, and machinery, it mounts on standard DIN rails
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This 2-pole miniature circuit breaker features a C-Curve trip characteristic and is UL489 listed for branch circuit protection. Rated 60 A at 240V AC and 60V DC with a 10 kA interrupting capacity, it uses screw clamp terminals for secure wiring. Suitable for overcurrent protection in industrial control panels, HVAC equipment, and machinery, it mounts on standard DIN rails
This 2-pole miniature circuit breaker from the Siemens 5SJ4 series provides overcurrent protection for branch circuits in industrial control panels, HVAC equipment, and machinery. Rated 32 A with a C-Curve trip characteristic, it is UL489 listed for 240V AC and 60V DC applications up to 14 kA. The screw clamp terminals facilitate secure wiring, and the unit mounts on standard DIN rails
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This 2-pole miniature circuit breaker from the Siemens 5SJ4 series provides overcurrent protection for branch circuits in industrial control panels, HVAC equipment, and machinery. Rated 32 A with a C-Curve trip characteristic, it is UL489 listed for 240V AC and 60V DC applications up to 14 kA. The screw clamp terminals facilitate secure wiring, and the unit mounts on standard DIN rails
This 2-pole miniature circuit breaker features a C-Curve trip characteristic and is UL489 listed for DIN rail mounting. Rated 1.6 A with a maximum interrupting rating of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals. Suitable for branch circuit protection in industrial control panels and distribution boards
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This 2-pole miniature circuit breaker features a C-Curve trip characteristic and is UL489 listed for DIN rail mounting. Rated 1.6 A with a maximum interrupting rating of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals. Suitable for branch circuit protection in industrial control panels and distribution boards
Siemens 5SJ4 series miniature circuit breaker, 15 A, C-curve, 2-pole, UL489 listed for DIN-rail mounting. Rated 10kA at 277/480V AC and 125V DC, with screw clamp terminals. Suitable for overcurrent protection in industrial control panels, HVAC equipment, and machinery
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Siemens 5SJ4 series miniature circuit breaker, 15 A, C-curve, 2-pole, UL489 listed for DIN-rail mounting. Rated 10kA at 277/480V AC and 125V DC, with screw clamp terminals. Suitable for overcurrent protection in industrial control panels, HVAC equipment, and machinery
This 3 A, C-curve, 2-pole miniature circuit breaker is UL489 listed for DIN-rail mounting. Rated 10kA at 277/480V AC and 125V DC, it provides overcurrent protection in branch circuits, control panels, and equipment. Screw clamp terminals facilitate wiring
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This 3 A, C-curve, 2-pole miniature circuit breaker is UL489 listed for DIN-rail mounting. Rated 10kA at 277/480V AC and 125V DC, it provides overcurrent protection in branch circuits, control panels, and equipment. Screw clamp terminals facilitate wiring
This 2-pole miniature circuit breaker features a C-Curve trip characteristic for moderate inrush loads. Rated 1A, 10kA at 277/480V AC and 125V DC, with screw clamp terminals. UL489 listed for DIN rail mounting. Suitable for overcurrent protection in industrial control panels, lighting circuits, and motor branch circuits
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This 2-pole miniature circuit breaker features a C-Curve trip characteristic for moderate inrush loads. Rated 1A, 10kA at 277/480V AC and 125V DC, with screw clamp terminals. UL489 listed for DIN rail mounting. Suitable for overcurrent protection in industrial control panels, lighting circuits, and motor branch circuits