Siemens Supplementary Protector: 16 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp
The Siemens 5SY4 series IEC supplementary protector (SKU 30XU18) is a C-curve, 1-pole UL1077 DIN rail-mount device rated at 16 A. It features a maximum AIR rating of 10kA at 230/400V AC, an AC voltage rating of…
SKU 3G-OTH-19797
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Product Description
The Siemens 5SY4 series IEC supplementary protector (SKU 30XU18) is a C-curve, 1-pole UL1077 DIN rail-mount device rated at 16 A. It features a maximum AIR rating of 10kA at 230/400V AC, an AC voltage rating of 230/400V AC, and a DC voltage rating of 72V DC, with screw clamp terminals.
Frequently Asked Questions
What is the Siemens 5SY4 supplementary protector used for?
The Siemens 5SY4 series supplementary protector provides overcurrent protection for control circuits, instrumentation, and industrial equipment. Its C-curve trip characteristic handles moderate inrush currents, making it suitable for motor starters, contactors, and PLC power supplies in manufacturing and process plants.
What are the specifications of the Siemens 5SY41167?
The Siemens 5SY41167 is a 1-pole, C-curve supplementary protector rated 16 A, 230/400V AC, and 72V DC. It has a maximum AIR rating of 10kA at 230/400V AC and uses screw clamp terminals. It is UL1077 listed for DIN rail mounting and is part of the 5SY4 series.
Where to buy the Siemens 5SY41167 worldwide?
3G Electric supplies the Siemens 5SY41167 supplementary protector to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this genuine Siemens part.
How to select the correct supplementary protector for a control panel?
Select a supplementary protector based on the circuit's voltage (AC or DC), continuous current rating, and available fault current. The Siemens 5SY4 with C-curve is ideal for circuits with moderate inrush, such as solenoid valves or relay coils. Always verify the device's interrupting rating exceeds the system's prospective short-circuit current.
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3G Electric supplies Siemens c-curve, 1-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.















