Siemens Supplementary Protector: 8 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp
The Siemens 5SY4 series IEC supplementary protector (SKU 30XZ42) is a C-curve, 1-pole UL1077 DIN rail-mount device rated at 8 A amps. It features a maximum AIR rating of 10kA at 230/400V AC, an AC voltage rating of…
SKU 3G-OTH-20044
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Product Description
The Siemens 5SY4 series IEC supplementary protector (SKU 30XZ42) is a C-curve, 1-pole UL1077 DIN rail-mount device rated at 8 A amps. 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. The unit uses screw clamp terminals for secure wiring connections.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the Siemens 5SY41087 supplementary protector used for?
The Siemens 5SY41087 is a C-curve, 1-pole supplementary protector rated at 8 A. It protects branch circuits and equipment against overloads and short circuits in industrial control panels, HVAC systems, and lighting applications. It mounts on a DIN rail and is UL1077 listed for use in the United States and Canada.
What are the specifications of the Siemens 5SY41087?
The Siemens 5SY41087 is a 1-pole supplementary protector with an 8 A rating, C-curve trip characteristic, and screw clamp terminals. It has 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. It is part of the Siemens 5SY4 series.
Where to buy the Siemens 5SY41087 worldwide?
You can source the Siemens 5SY41087 supplementary protector 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; we provide competitive pricing and reliable sourcing for this Siemens 5SY4 series device.
How to install the Siemens 5SY41087 supplementary protector?
Install the Siemens 5SY41087 by snapping it onto a standard 35 mm DIN rail. Ensure the circuit is de-energized before wiring. Connect the line and load conductors to the screw clamp terminals, tightening to the torque specified on the device label. Verify the C-curve rating matches your application's inrush current requirements.
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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.















