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Siemens Supplementary Protector: 4 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: 4 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector (SKU 30XV84, MPN 5SY44047) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 4 A Amps. It features a Max. AIR Rating of 10kA at 400V AC, a DC Voltage…

SKU 3G-OTH-20464

Brand
Siemens
Item
Supplementary Protector: 4 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
5SY44047
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
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Supplementary Protector (SKU 30XV84, MPN 5SY44047) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 4 A Amps. It features a Max. AIR Rating of 10kA at 400V AC, a DC Voltage Rating of 72V DC, and a Screw Clamp terminal connection, part of the Series 5SY4.

Frequently Asked Questions

What is the SIEMENS 5SY44047 supplementary protector used for?

The SIEMENS 5SY44047 is a C-curve, 4-pole supplementary protector rated at 4 A. It protects branch circuits and equipment against overloads and short circuits in industrial control panels, HVAC systems, and machinery, with a 72V DC rating and 10kA interrupting capacity at 400V AC.

What are the specifications of the SIEMENS 5SY44047?

The SIEMENS 5SY44047 (MPN 5SY44047) is a 4 A, C-curve, 4-pole supplementary protector. It has a DC voltage rating of 72V DC, a max. AIR rating of 10kA at 400V AC, and screw clamp terminals. It is part of the 5SY4 series and mounts on a DIN rail.

Where to buy the SIEMENS 5SY44047 worldwide?

3G Electric supplies the SIEMENS 5SY44047 supplementary protector to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Siemens-branded component.

How to install a SIEMENS 5SY44047 supplementary protector?

To install the SIEMENS 5SY44047, mount it on a standard DIN rail, ensuring the rail is clean and secure. Connect wires to the screw clamp terminals per the torque specifications in the datasheet. Verify the system 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 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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