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Siemens Supplementary Protector: 10 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp - C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensC-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens Supplementary Protector: 10 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector (SKU 30XV97, MPN 5SY44107) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protector from the 5SY4 series. It is rated for 10 A Amps, with a DC voltage rating of 72V…

SKU 3G-OTH-20536

Brand
Siemens
Item
Supplementary Protector: 10 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp
Category
C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

Siemens
Manufacturer Part Number
5SY44107
Series
5SY4
Type
10kA at 400V AC, Screw Clamp, C
AC
400V
DC
72V
Max. AIR Rating
10kA at 400V AC
DC Voltage Rating
72V 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 Supplementary Protector (SKU 30XV97, MPN 5SY44107) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protector from the 5SY4 series. It is rated for 10 A Amps, with a DC voltage rating of 72V DC and a maximum AIR rating of 10kA at 400V AC. The terminal connection is a screw clamp.

Frequently Asked Questions

What is the SIEMENS 5SY44107 supplementary protector used for?

The SIEMENS 5SY44107 is a C-curve, 4-pole supplementary protector for overcurrent protection in industrial control panels, HVAC equipment, and machinery. It mounts on DIN rails and is UL1077 listed, suitable for branch circuit protection in 400V AC or 72V DC systems.

What are the specifications of the SIEMENS 5SY44107?

The SIEMENS 5SY44107 is rated 10 A, 400V AC / 72V DC, with a maximum AIR of 10kA at 400V AC. It features screw clamp terminals, a C-curve trip characteristic, and is part of the 5SY4 series. It is a 4-pole DIN rail-mount supplementary protector.

Where to buy the SIEMENS 5SY44107 worldwide?

3G Electric supplies the SIEMENS 5SY44107 supplementary protector to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this genuine Siemens part.

How to select the right supplementary protector for a 400V AC circuit?

For a 400V AC circuit, select a supplementary protector with a voltage rating equal to or greater than the system voltage. The SIEMENS 5SY44107 is rated 400V AC and 10kA interrupting capacity. Ensure the current rating (10 A) matches the load and the trip curve (C) suits moderate inrush currents.

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 c-curve, 4-pole ul1077 din rail-mount supplementary protectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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