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Siemens 5SJ4 C-Curve 2-Pole UL489 Miniature Circuit Breaker - C-Curve, 2-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
SiemensC-Curve, 2-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers

Siemens 5SJ4 C-Curve 2-Pole UL489 Miniature Circuit Breaker

The SIEMENS IEC Miniature Circuit Breaker (SKU 5SJ42047HG42, MPN 5SJ42047HG42) is a 4 A, C-Curve, 2-Pole UL489 DIN Rail-Mount unit. It is rated for 10kA at 277/480V AC and 125V DC, with screw clamp terminals.

SKU 3G-OTH-21065

Brand
Siemens
Item
5SJ4 C-Curve 2-Pole UL489 Miniature Circuit Breaker
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
5SJ42047HG42
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 5SJ42047HG42, MPN 5SJ42047HG42) is a 4 A, C-Curve, 2-Pole UL489 DIN Rail-Mount unit. It is rated for 10kA at 277/480V AC and 125V DC, with screw clamp terminals.

Frequently Asked Questions

What is the SIEMENS 5SJ42047HG42 miniature circuit breaker used for?

The SIEMENS 5SJ42047HG42 is a 4 A, C-Curve, 2-pole UL489 miniature circuit breaker used for overcurrent protection in industrial control panels, HVAC equipment, and branch circuits. It mounts on a DIN rail and handles 277/480V AC or 125V DC systems.

What are the specifications of the SIEMENS 5SJ42047HG42?

This SIEMENS IEC miniature circuit breaker is rated 4 A, 10kA at 277/480V AC, and 125V DC. It features a C-Curve trip characteristic, screw clamp terminals, and a 2-pole UL489 DIN rail-mount design. The MPN is 5SJ42047HG42.

Where to buy the SIEMENS 5SJ42047HG42 worldwide?

3G Electric supplies the SIEMENS 5SJ42047HG42 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 install the SIEMENS 5SJ42047HG42 on a DIN rail?

To install the SIEMENS 5SJ42047HG42, snap the breaker onto a standard 35 mm DIN rail until it locks. Connect wires to the screw clamp terminals per the torque rating on the label. Ensure the circuit is de-energized before installation.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Siemens 5SJ4 series miniature circuit breaker, 0.5 A, C-curve, 2-pole, UL489 listed. Rated 10kA at 277/480V AC and 125V DC. Screw clamp terminals for secure wiring. Suitable for overcurrent protection in branch circuits, control panels, and equipment within industrial electrical systems
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Siemens 5SJ4 series miniature circuit breaker, 0.5 A, C-curve, 2-pole, UL489 listed. Rated 10kA at 277/480V AC and 125V DC. Screw clamp terminals for secure wiring. Suitable for overcurrent protection in branch circuits, control panels, and equipment within industrial electrical systems
This 2-pole miniature circuit breaker is rated 13A with a C-curve trip characteristic. It provides overcurrent protection for AC circuits up to 277/480V and DC circuits up to 125V, with a maximum interrupting rating of 10kA at 277/480V AC. The unit features screw clamp terminals and is designed for DIN rail mounting. Typical applications include branch circuit protection in industrial control panels, lighting circuits, and DC power systems
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This 2-pole miniature circuit breaker is rated 13A with a C-curve trip characteristic. It provides overcurrent protection for AC circuits up to 277/480V and DC circuits up to 125V, with a maximum interrupting rating of 10kA at 277/480V AC. The unit features screw clamp terminals and is designed for DIN rail mounting. Typical applications include branch circuit protection in industrial control panels, lighting circuits, and DC power systems
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 from Siemens features a C-curve trip characteristic for moderate inrush loads. Rated 2A, it provides branch-circuit protection with a maximum interrupting rating of 10kA at 277/480V AC and 125V DC. The screw clamp terminals facilitate secure wiring in DIN rail-mounted applications such as industrial control panels and distribution boards
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This 2-pole miniature circuit breaker from Siemens features a C-curve trip characteristic for moderate inrush loads. Rated 2A, it provides branch-circuit protection with a maximum interrupting rating of 10kA at 277/480V AC and 125V DC. The screw clamp terminals facilitate secure wiring in DIN rail-mounted applications such as industrial control panels and distribution boards
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 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
This 2-pole miniature circuit breaker features a C-curve trip characteristic and is UL489 listed for branch circuit protection. Rated 30A with a maximum interrupting rating of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals for secure wiring. Designed for DIN rail mounting in industrial and commercial distribution panels
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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 30A with a maximum interrupting rating of 10kA at 277/480V AC and 125V DC, it uses screw clamp terminals for secure wiring. Designed for DIN rail mounting in industrial and commercial distribution panels

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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 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
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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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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