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Siemens Supplementary Protector: 16 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: 16 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector (SKU 30XW11, MPN 5SY44167) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series, rated at 16 A Amps. It features a Max. AIR Rating of 10kA at…

SKU 3G-OTH-20188

Brand
Siemens
Item
Supplementary Protector: 16 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
5SY44167
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
View Full Spec Sheet

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Supplementary Protector (SKU 30XW11, MPN 5SY44167) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series, rated at 16 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.

Frequently Asked Questions

What is the SIEMENS 5SY44167 supplementary protector used for?

The SIEMENS 5SY44167 is a C-curve, 4-pole supplementary protector rated 16 A at 400 V AC and 72 V DC. It protects branch circuits and control panels against overloads and short circuits in industrial automation, HVAC, and machinery applications.

What are the specifications of the SIEMENS 5SY44167?

The SIEMENS 5SY44167 is a 4-pole supplementary protector from the 5SY4 series, rated 16 A, 400 V AC, 72 V DC, with a max. AIR rating of 10 kA at 400 V AC. It uses screw clamp terminals and a C-curve trip characteristic for moderate inrush currents.

Where to buy the SIEMENS 5SY44167 worldwide?

3G Electric supplies the SIEMENS 5SY44167 supplementary protector to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this genuine Siemens component.

How to install the SIEMENS 5SY44167 supplementary protector?

Install the SIEMENS 5SY44167 on a standard DIN rail. Ensure the circuit is de-energized, connect conductors to the screw clamp terminals per the torque specs in the datasheet, and verify polarity for DC applications. Always follow local electrical 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 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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