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Siemens Supplementary Protector: 1 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: 1 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector (SKU 30XV75, MPN 5SY44017) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series. It is rated for 1 A Amps, with a DC voltage rating of 72V DC…

SKU 3G-OTH-20149

Brand
Siemens
Item
Supplementary Protector: 1 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
5SY44017
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 30XV75, MPN 5SY44017) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series. It is rated for 1 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 5SY44017 supplementary protector used for?

The SIEMENS 5SY44017 is a C-curve, 4-pole supplementary protector used to protect branch circuits and control equipment against overloads and short circuits in industrial control panels, HVAC systems, and automation applications. It mounts on a DIN rail and is rated for 1 A at up to 72V DC or 400V AC.

What are the specifications of the SIEMENS 5SY44017?

The SIEMENS 5SY44017 is a 1 A, C-curve, 4-pole supplementary protector from the 5SY4 series. It has a DC voltage rating of 72V DC, a maximum AIR rating of 10kA at 400V AC, and a screw clamp terminal connection. It is UL1077 listed for DIN rail mounting.

Where to buy the SIEMENS 5SY44017 worldwide?

You can source the SIEMENS 5SY44017 worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we supply genuine Siemens components to industrial buyers globally.

How to install the SIEMENS 5SY44017 supplementary protector?

Install the SIEMENS 5SY44017 by snapping it onto a standard 35 mm DIN rail. Ensure the circuit is de-energized, then connect wires to the screw clamp terminals per the torque specifications in the datasheet. Use a C-curve breaker for moderate inrush loads; verify voltage and current ratings match your application.

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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