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Siemens Supplementary Protector: 1 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: 1 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector (SKU 30XU29) is a D-curve, 1-pole UL1077 DIN rail-mount supplementary protector from the 5SY4 series, rated at 1 A. It features a maximum AIR rating of 10kA at 230/400V AC, an…

SKU 3G-OTH-19987

Brand
Siemens
Item
Supplementary Protector: 1 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
5SY41018
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 IEC Supplementary Protector (SKU 30XU29) is a D-curve, 1-pole UL1077 DIN rail-mount supplementary protector from the 5SY4 series, rated at 1 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 5SY41018 supplementary protector used for?

The SIEMENS 5SY41018 is a D-curve, 1-pole UL1077 supplementary protector rated at 1 A. It protects industrial control circuits, instrumentation, and HVAC equipment from overcurrents and short circuits, with a 10kA interrupting rating at 230/400V AC and 72V DC.

What are the specifications of the SIEMENS 5SY41018?

The SIEMENS 5SY41018 is a 1 A, D-curve supplementary protector from the 5SY4 series. It has a max AIR rating of 10kA at 230/400V AC, AC voltage rating of 230/400V AC, DC voltage rating of 72V DC, and screw clamp terminals. It is UL1077 listed for DIN rail mounting.

Where to buy the SIEMENS 5SY41018 worldwide?

3G Electric supplies the SIEMENS 5SY41018 worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this D-curve supplementary protector.

How to select a D-curve supplementary protector like the SIEMENS 5SY41018?

Select a D-curve protector like the SIEMENS 5SY41018 for loads with high inrush currents, such as motors, transformers, or solenoid valves. Verify the rated current (1 A), voltage (230/400V AC or 72V DC), and interrupting capacity (10kA) match your circuit requirements.

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: 0.3 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, D (MPN 5SY41148). 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: 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: 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.
SIEMENS IEC Supplementary Protector: 13 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, D (MPN 5SY41138). 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.
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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.
Siemens
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.