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Siemens Miniature Circuit Breaker: 45 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: 45 A Amps, 60V DC, 14kA at 240V AC, Screw Clamp

The SIEMENS IEC Miniature Circuit Breaker (SKU 30XZ94, MPN 5SJ41456HG40) is a B-Curve, 1-Pole UL489 DIN Rail-Mount unit rated at 45 A. It carries a Max. AIR Rating of 14kA at 240V AC, with AC Voltage Rating of 240V…

SKU 3G-OTH-21873

Brand
Siemens
Item
Miniature Circuit Breaker: 45 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
5SJ41456HG40
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
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Miniature Circuit Breaker (SKU 30XZ94, MPN 5SJ41456HG40) is a B-Curve, 1-Pole UL489 DIN Rail-Mount unit rated at 45 A. It carries a Max. AIR Rating of 14kA at 240V AC, with AC Voltage Rating of 240V AC and DC Voltage Rating of 60V DC. The terminal connection is a Screw Clamp.

Frequently Asked Questions

What is the SIEMENS 5SJ41456HG40 miniature circuit breaker used for?

The SIEMENS 5SJ41456HG40 is a B-Curve, 1-Pole UL489 DIN Rail-Mount miniature circuit breaker rated at 45 A. It protects branch circuits in industrial control panels, HVAC equipment, and machinery against overloads and short circuits, with a 14kA interrupting rating at 240V AC and 60V DC capability.

What are the specifications of the SIEMENS 5SJ41456HG40?

The SIEMENS 5SJ41456HG40 is a 45 A, 1-Pole B-Curve miniature circuit breaker with a Max. AIR Rating of 14kA at 240V AC. It has an AC Voltage Rating of 240V AC, a DC Voltage Rating of 60V DC, and a Screw Clamp terminal connection. It is UL489 listed for DIN rail mounting.

Where to buy the SIEMENS 5SJ41456HG40 worldwide?

3G Electric supplies the SIEMENS 5SJ41456HG40 miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this 45 A, 1-Pole B-Curve unit.

How to install the SIEMENS 5SJ41456HG40 on a DIN rail?

To install the SIEMENS 5SJ41456HG40, snap the breaker onto a standard 35 mm DIN rail until the latch engages. Ensure the supply is de-energized, then connect wires to the Screw Clamp terminals using the specified torque. Verify the B-Curve trip characteristic matches your load type before energizing.

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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SIEMENS IEC Miniature Circuit Breaker: 15 A Amps, 60V DC, 14kA at 240V AC, Screw Clamp, 5SJ4, AC/DC (MPN 5SJ41186HG40). Key specifications — Brand: SIEMENS; DC Voltage Rating: 60V DC; Max. AIR Rating: 14kA at 240V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 240V AC.
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SIEMENS IEC Miniature Circuit Breaker: 35 A Amps, 60V DC, 14kA at 240V AC, Screw Clamp, 5SJ4, AC/DC (MPN 5SJ41356HG40). Key specifications — Brand: SIEMENS; DC Voltage Rating: 60V DC; Max. AIR Rating: 14kA at 240V AC; Terminal Connection: Screw Clamp; AC Voltage Rating: 240V AC.
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