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Siemens Miniature Circuit Breaker: 45 A Amps, 60V DC, 10kA at 240V AC, Screw Clamp - 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: 45 A Amps, 60V DC, 10kA at 240V AC, Screw Clamp

The SIEMENS IEC Miniature Circuit Breaker (SKU 30XZ96, MPN 5SJ41458HG40) is a 45 A, 1-pole D-curve UL489 DIN rail-mount unit. It is rated for 240V AC (10kA AIR) and 60V DC, with screw-clamp terminals.

SKU 3G-OTH-22115

Brand
Siemens
Item
Miniature Circuit Breaker: 45 A Amps, 60V DC, 10kA at 240V AC, Screw Clamp
Category
D-Curve, 1-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
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Technical Specifications

Siemens
Manufacturer Part Number
5SJ41458HG40
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
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 30XZ96, MPN 5SJ41458HG40) is a 45 A, 1-pole D-curve UL489 DIN rail-mount unit. It is rated for 240V AC (10kA AIR) and 60V DC, with screw-clamp terminals.

Frequently Asked Questions

What is the SIEMENS 5SJ41458HG40 miniature circuit breaker used for?

The SIEMENS 5SJ41458HG40 is a 45 A, 1-pole D-curve UL489 miniature circuit breaker used for overcurrent protection in industrial control panels, HVAC equipment, and DC power systems. It mounts on a DIN rail and handles both 240V AC and 60V DC circuits.

What are the specifications of the SIEMENS 5SJ41458HG40?

The SIEMENS 5SJ41458HG40 is a 45 A, 1-pole D-curve miniature circuit breaker with a max. AIR rating of 10kA at 240V AC. It is rated for 240V AC and 60V DC, uses screw-clamp terminals, and is UL489 listed for DIN-rail mounting.

Where to buy the SIEMENS 5SJ41458HG40 worldwide?

You can source the SIEMENS 5SJ41458HG40 through 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 5SJ41458HG40 miniature circuit breaker?

Snap the SIEMENS 5SJ41458HG40 onto a standard DIN rail until it locks. Connect line and load wires to the screw-clamp terminals, torquing to the manufacturer's specification. 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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