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Siemens 5SJ4 Series 1-Pole D-Curve Miniature Circuit Breaker - D-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
SiemensD-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers

Siemens 5SJ4 Series 1-Pole D-Curve Miniature Circuit Breaker

The SIEMENS IEC Miniature Circuit Breaker (SKU 5SJ41638HG40, MPN 5SJ41638HG40) is a 63 A, 1-pole D-curve UL489 DIN rail-mount unit from the 5SJ4 series. It is rated for 240V AC (10kA AIR) and 60V DC, with screw-clamp…

SKU 3G-OTH-22051

Brand
Siemens
Item
5SJ4 Series 1-Pole D-Curve Miniature Circuit Breaker
Category
D-Curve, 1-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
5SJ41638HG40
Series
5SJ4
Type
10kA at 240V AC, Screw Clamp, 5SJ4, AC/DC
DC
60V
Max. AIR Rating
10kA at 240V AC
AC Voltage Rating
240V AC
DC Voltage Rating
60V 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 5SJ41638HG40, MPN 5SJ41638HG40) is a 63 A, 1-pole D-curve UL489 DIN rail-mount unit from the 5SJ4 series. It is rated for 240V AC (10kA AIR) and 60V DC, with screw-clamp terminals for secure wiring.

Frequently Asked Questions

What is the SIEMENS 5SJ41638HG40 miniature circuit breaker used for?

The SIEMENS 5SJ41638HG40 is a 63 A, 1-pole D-curve UL489 miniature circuit breaker used for overcurrent protection in industrial control panels, machinery, and power distribution systems. It handles 240V AC (10kA AIR) and 60V DC loads, making it suitable for both AC and DC circuits.

What are the specifications of the SIEMENS 5SJ41638HG40?

The SIEMENS 5SJ41638HG40 is a 63 A, 1-pole D-curve miniature circuit breaker from the 5SJ4 series. It has a 240V AC rating with 10kA AIR, a 60V DC rating, and screw-clamp terminals. It is UL489 listed for DIN rail mounting.

Where to buy the SIEMENS 5SJ41638HG40 worldwide?

3G Electric supplies the SIEMENS 5SJ41638HG40 miniature circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 63 A, 1-pole D-curve unit.

How to install the SIEMENS 5SJ41638HG40 on a DIN rail?

To install the SIEMENS 5SJ41638HG40, snap it onto a standard 35 mm DIN rail until it locks. Use a screwdriver to tighten the screw-clamp terminals to the recommended torque for secure wiring. Ensure the circuit is de-energized before installation and 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, 1-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
This 1-pole miniature circuit breaker features a D-curve trip characteristic for applications with high inrush currents, such as motor and transformer circuits. Rated 10A, it provides overcurrent protection in AC systems up to 277V (10kA interrupting capacity) and DC systems up to 60V. The screw-clamp terminals facilitate secure wiring in DIN rail-mounted panels
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This 1-pole miniature circuit breaker features a D-curve trip characteristic for applications with high inrush currents, such as motor and transformer circuits. Rated 10A, it provides overcurrent protection in AC systems up to 277V (10kA interrupting capacity) and DC systems up to 60V. The screw-clamp terminals facilitate secure wiring in DIN rail-mounted panels
Siemens 5SJ4 series miniature circuit breaker, 1-pole, D-curve, rated 15A, 277V AC and 60V DC. UL489 listed for branch circuit protection. Maximum interrupting rating 10kA at 277V AC. Screw clamp terminals for secure wiring. Suitable for overcurrent protection in industrial control panels, HVAC equipment, and DC power systems
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Siemens 5SJ4 series miniature circuit breaker, 1-pole, D-curve, rated 15A, 277V AC and 60V DC. UL489 listed for branch circuit protection. Maximum interrupting rating 10kA at 277V AC. Screw clamp terminals for secure wiring. Suitable for overcurrent protection in industrial control panels, HVAC equipment, and DC power systems
This 1-pole miniature circuit breaker features a D-curve trip characteristic for overcurrent protection. Rated 20A, 277V AC (10kA interrupting capacity) and 60V DC, with screw-clamp terminals. UL489 listed for DIN-rail mounting in industrial control panels, HVAC equipment, and lighting circuits
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This 1-pole miniature circuit breaker features a D-curve trip characteristic for overcurrent protection. Rated 20A, 277V AC (10kA interrupting capacity) and 60V DC, with screw-clamp terminals. UL489 listed for DIN-rail mounting in industrial control panels, HVAC equipment, and lighting circuits
Siemens 5SJ4 series miniature circuit breaker, 1-pole, C-curve trip characteristic, rated 63A. UL489 listed for DIN rail mounting. Suitable for branch circuit protection in industrial and commercial panels. AC voltage rating 240V, DC voltage rating 60V, with 10kA interrupting capacity at 240V AC. Screw clamp terminals
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Siemens 5SJ4 series miniature circuit breaker, 1-pole, C-curve trip characteristic, rated 63A. UL489 listed for DIN rail mounting. Suitable for branch circuit protection in industrial and commercial panels. AC voltage rating 240V, DC voltage rating 60V, with 10kA interrupting capacity at 240V AC. Screw clamp terminals
This 1-pole D-curve miniature circuit breaker is rated 13 A and complies with UL489. It provides overcurrent protection for AC circuits up to 277V (10kA interrupting capacity) and DC circuits up to 60V. The screw-clamp terminals facilitate secure wiring in DIN rail-mounted industrial control panels and equipment
Siemens
This 1-pole D-curve miniature circuit breaker is rated 13 A and complies with UL489. It provides overcurrent protection for AC circuits up to 277V (10kA interrupting capacity) and DC circuits up to 60V. The screw-clamp terminals facilitate secure wiring in DIN rail-mounted industrial control panels and equipment
This 2A, D-Curve, 1-pole miniature circuit breaker is UL489 listed for DIN rail mounting. It provides overcurrent protection for branch circuits and control panels in AC systems up to 277V and DC systems up to 60V. The screw clamp terminals facilitate secure wiring connections
Siemens
This 2A, D-Curve, 1-pole miniature circuit breaker is UL489 listed for DIN rail mounting. It provides overcurrent protection for branch circuits and control panels in AC systems up to 277V and DC systems up to 60V. The screw clamp terminals facilitate secure wiring connections

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This 1-pole D-curve miniature circuit breaker is UL489 listed for branch circuit protection. Rated 10A, 240V AC (14kA interrupting capacity) and 60V DC. Screw-clamp terminals for secure wiring. Suitable for overcurrent protection in industrial control panels, HVAC equipment, and machinery
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This 1-pole D-curve miniature circuit breaker is UL489 listed for branch circuit protection. Rated 10A, 240V AC (14kA interrupting capacity) and 60V DC. Screw-clamp terminals for secure wiring. Suitable for overcurrent protection in industrial control panels, HVAC equipment, and machinery
This 30 A, 1-pole D-curve miniature circuit breaker from the Siemens 5SJ4 series is UL489 listed for DIN rail mounting. It provides overcurrent protection for branch circuits rated up to 277V AC or 60V DC, with a maximum interrupting rating of 10kA at 277V AC. Terminal connection is via screw clamp. Typical applications include industrial control panels, HVAC equipment, and machinery
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This 30 A, 1-pole D-curve miniature circuit breaker from the Siemens 5SJ4 series is UL489 listed for DIN rail mounting. It provides overcurrent protection for branch circuits rated up to 277V AC or 60V DC, with a maximum interrupting rating of 10kA at 277V AC. Terminal connection is via screw clamp. Typical applications include industrial control panels, HVAC equipment, and machinery
This 1-pole miniature circuit breaker features a D-curve trip characteristic for overcurrent protection in circuits with high inrush currents. Rated 25A, it is UL489 listed for DIN rail mounting and accepts 277V AC (10kA interrupting rating) or 60V DC. Screw-clamp terminals facilitate secure wiring in industrial control panels, HVAC equipment, and machinery branch circuits
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This 1-pole miniature circuit breaker features a D-curve trip characteristic for overcurrent protection in circuits with high inrush currents. Rated 25A, it is UL489 listed for DIN rail mounting and accepts 277V AC (10kA interrupting rating) or 60V DC. Screw-clamp terminals facilitate secure wiring in industrial control panels, HVAC equipment, and machinery branch circuits
SIEMENS IEC Miniature Circuit Breaker: 32 A Amps, 60V DC, 10kA at 240V AC, Screw Clamp, 5SJ4, AC/DC (MPN 5SJ41328HG40)
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This 1-pole miniature circuit breaker features a D-curve trip characteristic for high inrush applications. Rated 60 A, 240V AC with 10kA interrupting capacity and 60V DC, it uses screw-clamp terminals. UL489 listed for branch circuit protection in industrial and commercial panels, it mounts on standard DIN rail
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This 1-pole miniature circuit breaker features a D-curve trip characteristic for high inrush applications. Rated 60 A, 240V AC with 10kA interrupting capacity and 60V DC, it uses screw-clamp terminals. UL489 listed for branch circuit protection in industrial and commercial panels, it mounts on standard DIN rail
This 1-pole D-curve miniature circuit breaker is UL489 listed for DIN rail mounting. Rated 6A with 14kA interrupting capacity at 240V AC and 60V DC, it uses screw-clamp terminals. Typical applications include branch circuit protection in industrial control panels, HVAC equipment, and machinery where high inrush currents occur
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1-pole D-curve miniature circuit breaker rated 1A, 240V AC and 60V DC with a maximum interrupting rating of 14kA at 240V AC. Features screw clamp terminals and DIN rail mounting. Suitable for branch circuit protection in industrial control panels and equipment, particularly for circuits with high inrush currents such as motors and transformers
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1-pole D-curve miniature circuit breaker rated 1A, 240V AC and 60V DC with a maximum interrupting rating of 14kA at 240V AC. Features screw clamp terminals and DIN rail mounting. Suitable for branch circuit protection in industrial control panels and equipment, particularly for circuits with high inrush currents such as motors and transformers