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Siemens 5SY4 Series D-Curve 1-Pole Supplementary Protector - D-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensD-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens 5SY4 Series D-Curve 1-Pole Supplementary Protector

The SIEMENS IEC Supplementary Protector (SKU 3G-OTH-20036) is a D-curve, 1-pole UL1077 DIN rail-mount supplementary protector rated at 3 A. It features a max. AIR rating of 10kA at 230/400V AC, an AC voltage rating…

SKU 3G-OTH-20036

Brand
Siemens
Item
5SY4 Series D-Curve 1-Pole Supplementary Protector
Part Number
5SY41038
Category
D-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
Available to Order
Also known as:5SY41038Siemens
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Siemens
Manufacturer Part Number
5SY41038
Series
5SY4
Type
10kA at 230/400V AC, Screw Clamp, 5SY4, D
DC
72V
Curve Type
D
Max. AIR Rating
10kA at 230/400V AC
AC Voltage Rating
230/400V AC
DC Voltage Rating
72V DC
Terminal Connection
Screw Clamp

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Supplementary Protector (SKU 3G-OTH-20036) is a D-curve, 1-pole UL1077 DIN rail-mount supplementary protector rated at 3 A. It features a max. AIR rating of 10kA at 230/400V AC, an AC voltage rating of 230/400V AC, and a DC voltage rating of 72V DC. This 5SY4 series unit uses screw clamp terminals and is identified by manufacturer part number 5SY41038.

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 5SY41038 supplementary protector used for?

The SIEMENS 5SY41038 is a D-curve, 1-pole supplementary protector rated at 3 A. It protects branch circuits and equipment against overloads and short circuits in industrial control panels, HVAC systems, and lighting applications. Its D-curve characteristic suits high-inrush loads like motors and transformers.

What are the specifications of the SIEMENS 5SY41038?

The SIEMENS 5SY41038 is a 3 A, D-curve, 1-pole supplementary protector with a max. AIR rating of 10kA at 230/400V AC. It has an AC voltage rating of 230/400V AC and a DC voltage rating of 72V DC. Terminal connection is screw clamp, and it is part of the 5SY4 series.

Where to buy the SIEMENS 5SY41038 worldwide?

You can source the SIEMENS 5SY41038 from 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; we supply genuine Siemens supplementary protectors to procurement teams globally.

How to select the correct SIEMENS supplementary protector for your application?

Select based on current rating (3 A for this model), voltage (AC 230/400V or DC 72V), and curve type. D-curve is for high-inrush loads like motors. Ensure the max. AIR rating (10kA) exceeds available fault current. Use screw clamp terminals for secure wiring. Always verify UL1077 listing for supplementary protection.

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 d-curve, 1-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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