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Siemens Supplementary Protector: 0.5 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp - D-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensD-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens Supplementary Protector: 0.5 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp

The Siemens 5SY4 series IEC Supplementary Protector (SKU 30XT81, MPN 5SY41058) is a D-curve, 1-pole UL1077 DIN rail-mount supplementary protector rated at 0.5 A. It features a maximum AIR rating of 10kA at 230/400V…

SKU 3G-OTH-20376

Brand
Siemens
Item
Supplementary Protector: 0.5 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp
Category
D-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

Siemens
Manufacturer Part Number
5SY41058
Series
5SY4
Type
10kA at 230/400V AC, Screw Clamp, 5SY4, D
DC
72V
Curve Type
D
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 5SY4 series IEC Supplementary Protector (SKU 30XT81, MPN 5SY41058) is a D-curve, 1-pole UL1077 DIN rail-mount supplementary protector rated at 0.5 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 5SY41058 supplementary protector used for?

The Siemens 5SY41058 is a D-curve, 1-pole UL1077 supplementary protector rated at 0.5 A. It protects industrial control circuits, instrumentation, and automation equipment from overcurrents and short circuits, commonly applied in panel building, machine tools, and HVAC systems across 14 industrial departments.

What are the specifications of the Siemens 5SY41058?

The Siemens 5SY41058 is a 0.5 A, D-curve, 1-pole supplementary protector with screw clamp terminals. It has a max AIR rating of 10kA at 230/400V AC, AC voltage rating of 230/400V AC, and DC voltage rating of 72V DC. It is part of the 5SY4 series and mounts on DIN rail.

Where to buy the Siemens 5SY41058 worldwide?

3G Electric supplies the Siemens 5SY41058 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 D-curve, 0.5 A protector.

How to select the right supplementary protector for a control panel?

Select a supplementary protector based on load current, voltage (AC/DC), interrupting capacity, and curve type. For inductive or motor loads, a D-curve like the Siemens 5SY41058 handles high inrush. Ensure the device is UL1077 listed for branch-circuit protection. 3G Electric can help match specifications to your application.

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 d-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: 40 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, D (MPN 5SY41408). 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: D.
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SIEMENS IEC Supplementary Protector: 1.6 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, D (MPN 5SY41158). 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: D.
SIEMENS IEC Supplementary Protector: 4 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, D (MPN 5SY41048). 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: D.
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SIEMENS IEC Supplementary Protector: 4 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, D (MPN 5SY41048). 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: D.
SIEMENS IEC Supplementary Protector: 3 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, D (MPN 5SY41038). 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: D.
Siemens
SIEMENS IEC Supplementary Protector: 3 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, D (MPN 5SY41038). 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: D.