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

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

The SIEMENS IEC Supplementary Protector is a 50 A, A-Curve, 1-pole UL1077 DIN rail-mount supplementary protector from the 5SY4 series. It is rated for 10kA at 230/400V AC and 72V DC, with screw clamp terminals (MPN…

SKU 3G-OTH-21467

Brand
Siemens
Item
5SY4 Series A-Curve 1-Pole Supplementary Protector
Part Number
5SY41505
Category
A-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
Available to Order
Also known as:5SY41505Siemens
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Technical Specifications

Siemens
Manufacturer Part Number
5SY41505
Series
5SY4
Type
10kA at 230/400V AC, Screw Clamp, 5SY4, A
DC
72V
Curve Type
A
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 IEC Supplementary Protector is a 50 A, A-Curve, 1-pole UL1077 DIN rail-mount supplementary protector from the 5SY4 series. It is rated for 10kA at 230/400V AC and 72V DC, with screw clamp terminals (MPN 5SY41505).

Frequently Asked Questions

What is the SIEMENS 5SY41505 supplementary protector used for?

The SIEMENS 5SY41505 is a 50 A, A-curve, 1-pole supplementary protector designed to protect branch circuits and equipment against overloads and short circuits in industrial control panels, HVAC systems, and lighting applications. It mounts on a DIN rail and meets UL1077 standards.

What are the specifications of the SIEMENS 5SY41505?

The SIEMENS 5SY41505 is a 50 A, A-curve, 1-pole supplementary protector from the 5SY4 series. It has a max AIR rating of 10kA at 230/400V AC, a DC voltage rating of 72V DC, and screw clamp terminals. It is designed for DIN rail mounting and complies with UL1077.

Where to buy the SIEMENS 5SY41505 worldwide?

You can source the SIEMENS 5SY41505 supplementary protector 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 item.

How to install the SIEMENS 5SY41505 supplementary protector?

To install the SIEMENS 5SY41505, snap it onto a standard DIN rail, ensure the circuit is de-energized, and connect wires using the screw clamp terminals. Torque terminals to the manufacturer's recommended value. Always follow local electrical codes and the product's installation manual.

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 a-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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