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Siemens Supplementary Protector: 0.3 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: 0.3 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector (SKU 30XW04, MPN 5SY44147) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protector rated at 0.3 A Amps. It features a Max. AIR Rating of 10kA at 400V AC, a DC…

SKU 3G-OTH-20435

Brand
Siemens
Item
Supplementary Protector: 0.3 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
5SY44147
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 30XW04, MPN 5SY44147) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protector rated at 0.3 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. This device is part of the SIEMENS 5SY4 series.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SIEMENS 5SY44147 supplementary protector used for?

The SIEMENS 5SY44147 is a C-curve, 4-pole supplementary protector rated at 0.3 A. It protects branch circuits and sensitive equipment against overloads and short circuits in industrial control panels, HVAC systems, and automation applications up to 400V AC or 72V DC.

What are the specifications of the SIEMENS 5SY44147?

The SIEMENS 5SY44147 is a 4-pole C-curve supplementary protector rated at 0.3 A, 400V AC, and 72V DC. It has a maximum AIR rating of 10kA at 400V AC, uses screw clamp terminals, and is part of the 5SY4 series. It is UL1077 listed for DIN-rail mounting.

Where to buy the SIEMENS 5SY44147 worldwide?

You can source the SIEMENS 5SY44147 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 on this supplementary protector.

How to install the SIEMENS 5SY44147 supplementary protector?

Mount the SIEMENS 5SY44147 onto a standard DIN rail, ensuring the C-curve matches your circuit's inrush characteristics. Connect wires using the screw clamp terminals per the torque specs in the datasheet. Always de-energize the circuit 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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