Siemens Supplementary Protector: 3 A Amps, 5kA at 400V AC, Screw Clamp, 5SY6, 400V AC
The SIEMENS IEC Supplementary Protector (SKU 30XY12) is a C-curve, 2-pole UL1077 DIN rail-mount supplementary protector rated at 3 A amps. It features a maximum AIR rating of 5kA at 400V AC, an AC voltage rating of…
SKU 3G-OTH-20745
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Product Description
The SIEMENS IEC Supplementary Protector (SKU 30XY12) is a C-curve, 2-pole UL1077 DIN rail-mount supplementary protector rated at 3 A amps. It features a maximum AIR rating of 5kA at 400V AC, an AC voltage rating of 400V AC, and screw clamp terminal connections. This device is part of the 5SY6 series and is not rated for DC voltage.
Frequently Asked Questions
What is the SIEMENS 5SY62037 supplementary protector used for?
The SIEMENS 5SY62037 is a C-curve, 2-pole supplementary protector rated at 3 A amps. It protects branch circuits and equipment against overloads and short circuits in industrial control panels, HVAC systems, and lighting applications up to 400V AC.
What are the specifications of the SIEMENS 5SY62037?
The SIEMENS 5SY62037 is a 3 A, C-curve, 2-pole supplementary protector with a maximum AIR rating of 5kA at 400V AC. It uses screw clamp terminals, is rated for 400V AC only (not DC), and is part of the 5SY6 series. It is UL1077 listed for DIN rail mounting.
Where to buy the SIEMENS 5SY62037 worldwide?
3G Electric supplies the SIEMENS 5SY62037 worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.
How to install the SIEMENS 5SY62037 supplementary protector?
Snap the SIEMENS 5SY62037 onto a standard DIN rail. Connect phase and load wires to the screw clamp terminals, tightening to the torque specified on the device label. Ensure the circuit is de-energized before installation. Follow local electrical codes and the manufacturer's instructions.
Used in
Common applications for SiemensSiemens Products
3G Electric supplies Siemens c-curve, 2-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.


