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Siemens Miniature Circuit Breaker: 0.3 A Amps, 60V DC, 14 kA, Screw Clamp, 5SJ4 - D-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
SiemensD-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers

Siemens Miniature Circuit Breaker: 0.3 A Amps, 60V DC, 14 kA, Screw Clamp, 5SJ4

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

Brand
Siemens
Item
Miniature Circuit Breaker: 0.3 A Amps, 60V DC, 14 kA, Screw Clamp, 5SJ4
Category
D-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
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Technical Specifications

Siemens
Manufacturer Part Number
5SJ41148HG40
Series
5SJ4
Type
14 kA, Screw Clamp, 5SJ4, AC/DC
AC
240V
DC
60V
Max. AIR Rating
14 kA
AC Voltage Rating
240V AC
DC Voltage Rating
60V 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 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.

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 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.

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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