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Siemens Supplementary Protector: 20 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp - C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensC-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 30XW15) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series. It is rated for 20 A Amps with a Max. AIR Rating of 10kA at 400V AC and a…

SKU 3G-OTH-20473

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

Siemens
Manufacturer Part Number
5SY44207
Series
5SY4
Type
10kA at 400V AC, Screw Clamp, C
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 30XW15) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series. It is rated for 20 A Amps with a Max. AIR Rating of 10kA at 400V AC and a DC Voltage Rating of 72V DC. The terminal connection uses a Screw Clamp, and the manufacturer part number is 5SY44207.

Frequently Asked Questions

What is a Siemens 5SY44207 supplementary protector used for?

The Siemens 5SY44207 is a C-curve, 4-pole supplementary protector rated 20 A at 400V AC and 72V DC. It protects branch circuits and equipment from overloads and short circuits in industrial control panels, HVAC systems, and machinery across 14 industrial departments.

What are the specifications of the Siemens 5SY44207?

The Siemens 5SY44207 is a 4-pole supplementary protector from the 5SY4 series. It is rated 20 A, 400V AC, 72V DC, with a max. AIR rating of 10kA at 400V AC. Terminal connection is screw clamp. It is UL1077 listed and DIN rail mountable.

Where to buy Siemens 5SY44207 supplementary protector worldwide?

3G Electric supplies the Siemens 5SY44207 supplementary protector worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this 5SY4 series device.

How to install a Siemens 5SY44207 supplementary protector?

Install the Siemens 5SY44207 on a standard DIN rail. Ensure the circuit is de-energized. Connect phase conductors to screw clamp terminals per the wiring diagram. Torque terminals to manufacturer specifications. Verify the C-curve trip characteristic matches your load type.

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 c-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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