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Siemens Supplementary Protector: 20 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp - B-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensB-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens Supplementary Protector: 20 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector (SKU 30XW14, MPN 5SY44206) is a B-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 20 A Amps. It features a Max. AIR Rating of 10kA at 400V AC, a DC Voltage…

SKU 3G-OTH-21738

Brand
Siemens
Item
Supplementary Protector: 20 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp
Category
B-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

Siemens
Manufacturer Part Number
5SY44206
Series
5SY4
Type
10kA at 400V AC, Screw Clamp, B
AC
400V
DC
72V
Max. AIR Rating
10kA at 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 30XW14, MPN 5SY44206) is a B-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 20 A Amps. It features a Max. AIR Rating of 10kA at 400V AC, a DC Voltage Rating of 72V DC, and a Screw Clamp terminal connection. This device is part of the 5SY4 series and is designed for overcurrent protection in industrial control panels.

Frequently Asked Questions

What is the SIEMENS 5SY44206 supplementary protector used for?

The SIEMENS 5SY44206 is a B-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 20 A Amps. It provides overcurrent protection in industrial control panels, safeguarding branch circuits and sensitive equipment against short circuits and overloads up to 10kA at 400V AC.

What are the specifications of the SIEMENS 5SY44206?

The SIEMENS 5SY44206 is a 20 A Amps, B-Curve, 4-Pole supplementary protector with a Max. AIR Rating of 10kA at 400V AC and a DC Voltage Rating of 72V DC. It features a Screw Clamp terminal connection and is part of the 5SY4 series, designed for DIN Rail mounting.

Where to buy the SIEMENS 5SY44206 worldwide?

You can source the SIEMENS 5SY44206 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 on this supplementary protector.

How to install the SIEMENS 5SY44206 supplementary protector?

Install the SIEMENS 5SY44206 by snapping it onto a DIN rail in a control panel. Ensure the circuit is de-energized, connect wires to the Screw Clamp terminals with proper torque, and verify the B-Curve trip characteristic matches your load. Follow standard electrical safety practices and local codes.

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 b-curve, 4-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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