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Siemens Miniature Circuit Breaker: 40 A Amps, 60V DC, 14kA at 240V AC, Screw Clamp - B-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
SiemensB-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers

Siemens Miniature Circuit Breaker: 40 A Amps, 60V DC, 14kA at 240V AC, Screw Clamp

The SIEMENS IEC Miniature Circuit Breaker (SKU 30XZ91, MPN 5SJ41406HG40) is a 40 A, B-Curve, 1-Pole UL489 DIN Rail-Mount unit. It is rated for 240V AC (14kA AIR) and 60V DC, with a Screw Clamp terminal connection.

SKU 3G-OTH-21830

Brand
Siemens
Item
Miniature Circuit Breaker: 40 A Amps, 60V DC, 14kA at 240V AC, Screw Clamp
Category
B-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
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Technical Specifications

Siemens
Manufacturer Part Number
5SJ41406HG40
Type
14kA at 240V AC, Screw Clamp, 5SJ4, AC/DC
DC
60V
Max. AIR Rating
14kA at 240V AC
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 IEC Miniature Circuit Breaker (SKU 30XZ91, MPN 5SJ41406HG40) is a 40 A, B-Curve, 1-Pole UL489 DIN Rail-Mount unit. It is rated for 240V AC (14kA AIR) and 60V DC, with 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 5SJ41406HG40 miniature circuit breaker used for?

The SIEMENS 5SJ41406HG40 is a 40 A, B-Curve, 1-Pole UL489 miniature circuit breaker used for overcurrent protection in industrial control panels, HVAC equipment, and DC power systems. It protects wiring and components against short circuits and overloads in 240V AC or 60V DC applications.

What are the specifications of the SIEMENS 5SJ41406HG40?

The SIEMENS 5SJ41406HG40 is a 40 A, B-Curve, 1-Pole UL489 DIN Rail-Mount miniature circuit breaker. It has a 240V AC rating with 14kA interrupting capacity, a 60V DC rating, and a Screw Clamp terminal connection. The MPN is 5SJ41406HG40.

Where to buy the SIEMENS 5SJ41406HG40 worldwide?

You can source the SIEMENS 5SJ41406HG40 miniature circuit breaker from 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.

How to install the SIEMENS 5SJ41406HG40 on a DIN rail?

To install the SIEMENS 5SJ41406HG40, snap the unit onto a standard 35 mm DIN rail until the latch engages. Connect wires to the Screw Clamp terminals using the specified torque. Ensure the circuit is de-energized before installation. 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 b-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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