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Siemens Supplementary Protector: 20 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp - B-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensB-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens Supplementary Protector: 20 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector (SKU 30XU32) is a B-Curve, 1-Pole UL1077 DIN Rail-Mount supplementary protector rated at 20 A Amps. It features a Max. AIR Rating of 10kA at 230/400V AC, AC Voltage Rating of…

SKU 3G-OTH-20923

Brand
Siemens
Item
Supplementary Protector: 20 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp
Category
B-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

Siemens
Manufacturer Part Number
5SY41206
Series
5SY4
Type
10kA at 230/400V AC, Screw Clamp, 5SY4, B
DC
72V
Curve Type
B
Max. AIR Rating
10kA at 230/400V AC
AC Voltage Rating
230/400V 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 30XU32) is a B-Curve, 1-Pole UL1077 DIN Rail-Mount supplementary protector rated at 20 A Amps. It features a Max. AIR Rating of 10kA at 230/400V AC, AC Voltage Rating of 230/400V AC, and DC Voltage Rating of 72V DC, with a Screw Clamp terminal connection. This unit is part of the 5SY4 series (MPN 5SY41206).

Frequently Asked Questions

What is the SIEMENS 5SY41206 supplementary protector used for?

The SIEMENS 5SY41206 is a B-curve, 1-pole supplementary protector rated 20 A. It protects branch circuits and sensitive equipment against overloads and short circuits in industrial control panels, HVAC systems, and machinery. Its 10kA interrupting rating at 230/400V AC suits commercial and light industrial applications.

What are the specifications of the SIEMENS 5SY41206?

The SIEMENS 5SY41206 is a 20 A, B-curve supplementary protector with a max. AIR rating of 10kA at 230/400V AC. It has an AC voltage rating of 230/400V AC and a DC voltage rating of 72V DC. Terminal connection is screw clamp. It is part of the 5SY4 series and is UL1077 listed.

Where to buy the SIEMENS 5SY41206 worldwide?

3G Electric supplies the SIEMENS 5SY41206 supplementary protector to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 5SY4 series device.

How to install the SIEMENS 5SY41206 supplementary protector?

Install the SIEMENS 5SY41206 on a standard DIN rail. Ensure the circuit is de-energized. Connect line and load wires to the screw clamp terminals, tightening to the torque specified on the device label. Verify the B-curve trip characteristics match your application's inrush requirements before energizing.

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 b-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.

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SIEMENS IEC Supplementary Protector: 25 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, B (MPN 5SY41256). Key specifications — Brand: SIEMENS; Terminal Connection: Screw Clamp; DC Voltage Rating: 72V DC; Max. AIR Rating: 10kA at 230/400V AC; Series: 5SY4; AC Voltage Rating: 230/400V AC; Curve Type: B.
SIEMENS IEC Supplementary Protector: 13 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, B (MPN 5SY41136). Key specifications — Brand: SIEMENS; Terminal Connection: Screw Clamp; DC Voltage Rating: 72V DC; Max. AIR Rating: 10kA at 230/400V AC; Series: 5SY4; AC Voltage Rating: 230/400V AC; Curve Type: B.
Siemens
SIEMENS IEC Supplementary Protector: 13 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, B (MPN 5SY41136). Key specifications — Brand: SIEMENS; Terminal Connection: Screw Clamp; DC Voltage Rating: 72V DC; Max. AIR Rating: 10kA at 230/400V AC; Series: 5SY4; AC Voltage Rating: 230/400V AC; Curve Type: B.
SIEMENS IEC Supplementary Protector: 25 A Amps, 5kA at 230/400V AC, Screw Clamp, 5SY6, 230/400V AC (MPN 5SY61256). Key specifications — Brand: SIEMENS; Terminal Connection: Screw Clamp; DC Voltage Rating: Not Rated; Max. AIR Rating: 5kA at 230/400V AC; Series: 5SY6; AC Voltage Rating: 230/400V AC; Curve Type: B.
Siemens
SIEMENS IEC Supplementary Protector: 25 A Amps, 5kA at 230/400V AC, Screw Clamp, 5SY6, 230/400V AC (MPN 5SY61256). Key specifications — Brand: SIEMENS; Terminal Connection: Screw Clamp; DC Voltage Rating: Not Rated; Max. AIR Rating: 5kA at 230/400V AC; Series: 5SY6; AC Voltage Rating: 230/400V AC; Curve Type: B.