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

The SIEMENS IEC Supplementary Protector (SKU 30XV36, MPN 5SY43105) is a 10 A, A-Curve, 3-pole UL1077 DIN rail-mount supplementary protector from the 5SY4 series. It features a screw clamp terminal connection and is…

SKU 3G-OTH-20092

Brand
Siemens
Item
Supplementary Protector: 10 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
5SY43105
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 30XV36, MPN 5SY43105) is a 10 A, A-Curve, 3-pole UL1077 DIN rail-mount supplementary protector from the 5SY4 series. 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 5SY43105 supplementary protector used for?

The SIEMENS 5SY43105 is a 10 A, A-Curve, 3-pole UL1077 DIN rail-mount supplementary protector used to protect branch circuits and control equipment from overcurrent and short circuits in industrial control panels, HVAC systems, and machinery across 14 industrial departments.

What are the specifications of the SIEMENS 5SY43105?

The SIEMENS 5SY43105 is rated 10 A, 400V AC and 72V DC, with a max. AIR rating of 10kA at 400V AC. It features a screw clamp terminal connection, is part of the 5SY4 series, and is a 3-pole A-Curve supplementary protector for DIN rail mounting.

Where to buy the SIEMENS 5SY43105 worldwide?

3G Electric supplies the SIEMENS 5SY43105 worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 10 A, 3-pole supplementary protector.

How to install the SIEMENS 5SY43105 supplementary protector?

Install the SIEMENS 5SY43105 on a standard DIN rail. Ensure the circuit is de-energized, then snap the protector onto the rail. Connect wires using the screw clamp terminals per the torque specs in the manual. Verify voltage ratings (400V AC / 72V DC) match your application.

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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