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Siemens Supplementary Protector: 1 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp - A-Curve, 3-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensA-Curve, 3-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens Supplementary Protector: 1 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector (SKU 30XV23, MPN 5SY43015) is a 1 A, A-Curve, 3-pole supplementary protector from the 5SY4 series, designed for DIN rail mounting per UL1077. It features a screw clamp terminal…

SKU 3G-OTH-20049

Brand
Siemens
Item
Supplementary Protector: 1 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp
Category
A-Curve, 3-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

Siemens
Manufacturer Part Number
5SY43015
Series
5SY4
Type
10kA at 400V AC, Screw Clamp, 5SY4
AC
400V
DC
72V
Max. AIR Rating
10kA at 400V AC
AC Voltage Rating
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 30XV23, MPN 5SY43015) is a 1 A, A-Curve, 3-pole supplementary protector from the 5SY4 series, designed for DIN rail mounting per UL1077. It features a screw clamp terminal connection and is rated for 400V AC and 72V DC, with a maximum AIR rating of 10kA at 400V AC.

Frequently Asked Questions

What is the SIEMENS 5SY43015 supplementary protector used for?

The SIEMENS 5SY43015 is a 1 A, A-Curve, 3-pole supplementary protector from the 5SY4 series. It protects industrial control circuits, HVAC equipment, and panelboards against overloads and short circuits, with a 10kA interrupting rating at 400V AC and 72V DC rating.

What are the specifications of the SIEMENS 5SY43015?

The SIEMENS 5SY43015 is rated 1 A, 400V AC and 72V DC, with a maximum AIR of 10kA at 400V AC. It uses screw clamp terminals, is A-Curve, 3-pole, DIN rail-mountable, and complies with UL1077. The series is 5SY4, and the MPN is 5SY43015.

Where to buy the SIEMENS 5SY43015 worldwide?

3G Electric supplies the SIEMENS 5SY43015 worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this 5SY4 series supplementary protector globally.

How to install the SIEMENS 5SY43015 supplementary protector?

Install the SIEMENS 5SY43015 on a standard DIN rail. Ensure the circuit is de-energized, snap the protector onto the rail, and tighten the screw clamp terminals to the specified torque. Follow Siemens guidelines for wire gauge and torque values to ensure proper connection and 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

Siemens Products

3G Electric supplies Siemens a-curve, 3-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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