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Siemens 5SY44327 C-Curve 4-Pole Supplementary Protector - C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensC-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens 5SY44327 C-Curve 4-Pole Supplementary Protector

The SIEMENS IEC Supplementary Protector (SKU 5SY44327, MPN 5SY44327) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protector from the 5SY4 series. It is rated for 32 A Amps with a Max. AIR Rating of 10kA…

SKU 3G-OTH-20220

Brand
Siemens
Item
5SY44327 C-Curve 4-Pole Supplementary Protector
Part Number
5SY44327
Category
C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
Available to Order
Also known as:5SY44327Siemens
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Siemens
Manufacturer Part Number
5SY44327
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

Technical Documents

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Supplementary Protector (SKU 5SY44327, MPN 5SY44327) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protector from the 5SY4 series. It is rated for 32 A Amps with a Max. AIR Rating of 10kA at 400V AC and a DC Voltage Rating of 72V DC. The unit features a Screw Clamp terminal connection.

Frequently Asked Questions

What is the SIEMENS 5SY44327 supplementary protector used for?

The SIEMENS 5SY44327 is a C-curve, 4-pole supplementary protector designed to protect branch circuits and equipment from overcurrents and short circuits. It is commonly used in industrial control panels, HVAC systems, and machinery where UL1077 listing is required. Its 32 A rating and 10kA interrupting capacity at 400V AC suit motor and lighting applications.

What are the specifications of the SIEMENS 5SY44327?

The SIEMENS 5SY44327 is a 4-pole supplementary protector from the 5SY4 series. It is rated for 32 A at 400V AC and 72V DC, with a maximum AIR rating of 10kA at 400V AC. It features a C-curve trip characteristic and screw clamp terminals. The unit is UL1077 listed and DIN rail mountable.

Where to buy the SIEMENS 5SY44327 worldwide?

You can source the SIEMENS 5SY44327 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. 3G Electric supplies genuine Siemens components for industrial applications.

How to install the SIEMENS 5SY44327 supplementary protector?

Install the SIEMENS 5SY44327 by snapping it onto a standard DIN rail. Ensure the power is off before connecting wires to the screw clamp terminals. Torque terminals to the manufacturer's recommended value. The C-curve characteristic is suitable for moderate inrush loads. Always follow local electrical codes and the product datasheet.

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
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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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