Siemens 5SJ4 Series 0.3A D-Curve 1-Pole UL489 DIN Rail-Mount
The SIEMENS 5SJ4 Series Miniature Circuit Breaker is a 0.3 A, D-Curve, 1-Pole UL489 DIN Rail-Mount unit with a Max. AIR Rating of 14 kA, AC Voltage Rating of 240V AC, and DC Voltage Rating of 60V DC. It features a…
SKU 3G-OTH-21718
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
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Product Description
The SIEMENS 5SJ4 Series Miniature Circuit Breaker is a 0.3 A, D-Curve, 1-Pole UL489 DIN Rail-Mount unit with a Max. AIR Rating of 14 kA, AC Voltage Rating of 240V AC, and DC Voltage Rating of 60V DC. It features a Screw Clamp terminal connection.
Frequently Asked Questions
What is the SIEMENS 5SJ4 miniature circuit breaker used for?
The SIEMENS 5SJ4 Series miniature circuit breaker is used for overcurrent protection in industrial control panels, HVAC equipment, and DC power systems. Its D-Curve trip characteristic handles high inrush loads like motors and transformers. Rated 0.3 A, 240V AC, and 60V DC, it is suitable for branch circuit protection in global installations.
What are the specifications of the SIEMENS 5SJ41148HG40?
The SIEMENS 5SJ41148HG40 is a 0.3 A, 1-pole, D-Curve miniature circuit breaker with a Max. AIR Rating of 14 kA. It accepts 240V AC and 60V DC, uses a Screw Clamp terminal connection, and is UL489 listed for DIN rail mounting. The series is 5SJ4, and the manufacturer part number is 5SJ41148HG40.
Where to buy the SIEMENS 5SJ4 circuit breaker worldwide?
3G Electric supplies the SIEMENS 5SJ4 Series miniature circuit breaker worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the 5SJ41148HG40 or other Siemens breakers.
How to install a SIEMENS 5SJ4 miniature circuit breaker?
Install the SIEMENS 5SJ4 breaker by snapping it onto a standard 35 mm DIN rail. Ensure the circuit is de-energized. Connect wires using the Screw Clamp terminals, tightening to the torque specified on the device label. For DC applications, observe polarity markings. Always follow local electrical codes and the manufacturer's instructions.
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Common applications for SiemensSiemens 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.