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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 5SY4 Series IEC Supplementary Protector (SKU 5SY41158, MPN 5SY41158) is a 1.6 A, D-curve, 1-pole UL1077 DIN rail-mount supplementary protector. It features a screw clamp terminal connection and is rated…

SKU 3G-OTH-20410

Brand
Siemens
Item
5SY4 Series D-Curve 1-Pole Supplementary Protector
Category
D-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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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
5SY41158
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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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens 5SY4 Series IEC Supplementary Protector (SKU 5SY41158, MPN 5SY41158) is a 1.6 A, D-curve, 1-pole UL1077 DIN rail-mount supplementary protector. It features a screw clamp terminal connection and is rated for 10kA at 230/400V AC and 72V DC.

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 5SY41158 supplementary protector used for?

The Siemens 5SY41158 is a 1-pole D-curve supplementary protector rated 1.6 A, used to protect industrial control circuits, HVAC equipment, and motor branch circuits against overloads and short circuits. It mounts on DIN rails and is suitable for 230/400V AC or 72V DC systems.

What are the specifications of the Siemens 5SY41158?

The Siemens 5SY41158 is a 1.6 A, D-curve, 1-pole supplementary protector with screw clamp terminals. It has a max AIR rating of 10kA at 230/400V AC and a DC voltage rating of 72V DC. It is part of the 5SY4 series and complies with UL1077 standards.

Where to buy the Siemens 5SY41158 worldwide?

You can source the Siemens 5SY41158 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 times.

How to select the correct Siemens supplementary protector for my application?

Select based on current rating (1.6 A for this model), voltage (AC or DC), and curve type. D-curve suits high inrush loads like motors or transformers. Ensure the interrupting rating (10kA at 230/400V AC) exceeds your system's fault current. Always verify DIN rail compatibility.

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 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
This 1-pole supplementary protector from the Siemens 5SY4 series features a D-curve characteristic for high-inrush loads such as transformers and small motors. Rated at 2 A with a maximum interrupting rating of 10kA at 230/400V AC and 72V DC, it uses screw clamp terminals for secure wiring. The device mounts on a DIN rail and is UL1077 listed for branch-circuit protection in industrial control circuits, HVAC equipment, and motor starters
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This 1-pole supplementary protector from the Siemens 5SY4 series features a D-curve characteristic for high-inrush loads such as transformers and small motors. Rated at 2 A with a maximum interrupting rating of 10kA at 230/400V AC and 72V DC, it uses screw clamp terminals for secure wiring. The device mounts on a DIN rail and is UL1077 listed for branch-circuit protection in industrial control circuits, HVAC equipment, and motor starters
This 1-pole supplementary protector from the Siemens 5SY4 series features a D-curve for high inrush immunity, rated 20A with a maximum AIR of 10kA at 230/400V AC and 72V DC. It uses screw clamp terminals and mounts on DIN rail, suitable for overcurrent and short-circuit protection in industrial control circuits, lighting, and small motor loads
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This 1-pole supplementary protector from the Siemens 5SY4 series features a D-curve for high inrush immunity, rated 20A with a maximum AIR of 10kA at 230/400V AC and 72V DC. It uses screw clamp terminals and mounts on DIN rail, suitable for overcurrent and short-circuit protection in industrial control circuits, lighting, and small motor loads
This 1-pole supplementary protector features a D-curve trip characteristic for high inrush currents, rated 16A with AC voltage 230/400V and DC voltage 72V. It has a maximum interrupting rating of 10kA at 230/400V AC and uses screw clamp terminals. Designed for DIN rail mounting, it is suitable for overcurrent and short-circuit protection in control circuits and equipment
Siemens
This 1-pole supplementary protector features a D-curve trip characteristic for high inrush currents, rated 16A with AC voltage 230/400V and DC voltage 72V. It has a maximum interrupting rating of 10kA at 230/400V AC and uses screw clamp terminals. Designed for DIN rail mounting, it is suitable for overcurrent and short-circuit protection in control circuits and equipment
This 1-pole supplementary protector features a D-curve trip characteristic, rated 25 A with a maximum interrupting rating of 10kA at 230/400V AC and 72V DC. It uses screw-clamp terminals and mounts on a DIN rail, complying with UL1077. Suitable for overcurrent protection in industrial control circuits and equipment where branch-circuit protection is not required
Siemens
This 1-pole supplementary protector features a D-curve trip characteristic, rated 25 A with a maximum interrupting rating of 10kA at 230/400V AC and 72V DC. It uses screw-clamp terminals and mounts on a DIN rail, complying with UL1077. Suitable for overcurrent protection in industrial control circuits and equipment where branch-circuit protection is not required
This 1-pole supplementary protector from the Siemens 5SY4 series features a D-curve trip characteristic and is rated for 8 A. It has a maximum interrupting rating of 10 kA at 230/400 V AC and is also rated for 72 V DC. The unit uses screw clamp terminals and is designed for DIN rail mounting. Typical applications include protection of branch circuits and equipment in industrial control panels, HVAC systems, and lighting circuits
Siemens
This 1-pole supplementary protector from the Siemens 5SY4 series features a D-curve trip characteristic and is rated for 8 A. It has a maximum interrupting rating of 10 kA at 230/400 V AC and is also rated for 72 V DC. The unit uses screw clamp terminals and is designed for DIN rail mounting. Typical applications include protection of branch circuits and equipment in industrial control panels, HVAC systems, and lighting circuits
DIN rail-mount supplementary protector with D-curve tripping characteristic for overcurrent protection in industrial control panels, HVAC equipment, and machinery. Rated 32 A, 10kA at 230/400V AC, 72V DC. Screw clamp terminals. UL1077 listed
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DIN rail-mount supplementary protector with D-curve tripping characteristic for overcurrent protection in industrial control panels, HVAC equipment, and machinery. Rated 32 A, 10kA at 230/400V AC, 72V DC. Screw clamp terminals. UL1077 listed

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Siemens 5SY4 series supplementary protector, 1-pole, D-curve, rated 6 A. Provides overcurrent protection with a maximum AIR rating of 10kA at 230/400V AC and 72V DC. Features screw clamp terminals and mounts on DIN rail. Suitable for industrial control panels and equipment with high inrush currents
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Siemens 5SY4 series supplementary protector, 1-pole, D-curve, rated 6 A. Provides overcurrent protection with a maximum AIR rating of 10kA at 230/400V AC and 72V DC. Features screw clamp terminals and mounts on DIN rail. Suitable for industrial control panels and equipment with high inrush currents
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This 1-pole supplementary protector from the Siemens 5SY4 series features a D-curve trip characteristic and a rated current of 1 A. It is designed for DIN rail mounting and provides overcurrent protection with a maximum interrupting rating of 10 kA at 230/400 V AC and a DC voltage rating of 72 V. The screw clamp terminals facilitate secure wiring connections in control panels and industrial equipment
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This 1-pole supplementary protector with D-curve characteristic is rated 40A, 72V DC, and 10kA at 230/400V AC. It features screw clamp terminals and mounts on DIN rail. Suitable for overcurrent and short-circuit protection in branch circuits and equipment, commonly used in control panels and machinery
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D-curve, 1-pole supplementary protector rated 3 A with screw clamp terminals. Provides overcurrent protection for branch circuits and equipment in industrial control panels, HVAC systems, and lighting applications. Suitable for high-inrush loads such as motors and transformers. AC voltage rating 230/400V AC, DC voltage rating 72V DC, interrupting rating 10kA at 230/400V AC
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