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Siemens Supplementary Protector: 1.6 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp - D-Curve, 3-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensD-Curve, 3-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens Supplementary Protector: 1.6 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector is a D-Curve, 3-Pole UL1077 DIN Rail-Mount Supplementary Protector rated at 1.6 A Amps. It features a Max. AIR Rating of 10kA at 400V AC, AC Voltage Rating of 400V AC, and DC…

SKU 3G-OTH-20387

Brand
Siemens
Item
Supplementary Protector: 1.6 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp
Category
D-Curve, 3-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Siemens
Manufacturer Part Number
5SY43158
Series
5SY4
Type
10kA at 400V AC, Screw Clamp, 5SY4
AC
400V
DC
72V
Max. AIR Rating
10kA at 400V AC
AC Voltage Rating
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 is a D-Curve, 3-Pole UL1077 DIN Rail-Mount Supplementary Protector rated at 1.6 A Amps. It features a Max. AIR Rating of 10kA at 400V AC, AC Voltage Rating of 400V AC, and DC Voltage Rating of 72V DC, with a Screw Clamp terminal connection from the 5SY4 series (MPN 5SY43158).

Frequently Asked Questions

What is the SIEMENS 5SY43158 supplementary protector used for?

The SIEMENS 5SY43158 is a D-Curve, 3-Pole UL1077 supplementary protector rated at 1.6 A Amps. It protects branch circuits and equipment from overcurrents and short circuits in industrial control panels, HVAC systems, and machinery, with a 10kA interrupting rating at 400V AC and 72V DC capability.

What are the specifications of the SIEMENS 5SY43158?

The SIEMENS 5SY43158 is a 3-pole supplementary protector from the 5SY4 series. It has a current rating of 1.6 A Amps, AC voltage rating of 400V AC, DC voltage rating of 72V DC, and a maximum AIR rating of 10kA at 400V AC. Terminal connection is screw clamp, and it mounts on a DIN rail.

Where to buy the SIEMENS 5SY43158 worldwide?

3G Electric supplies the SIEMENS 5SY43158 supplementary protector to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this 1.6 A, 3-pole UL1077 device.

How to install the SIEMENS 5SY43158 supplementary protector?

Install the SIEMENS 5SY43158 by snapping it onto a standard 35 mm DIN rail. Ensure the circuit is de-energized, then connect wires to the screw clamp terminals using the correct torque. The D-Curve trip characteristic suits motor and transformer loads with high inrush currents. Follow local electrical codes.

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, 3-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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Compatible alternatives & equivalents

Cross-referenced by specification & description
SIEMENS IEC Supplementary Protector: 1 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, 5SY4, 400V AC (MPN 5SY43018)
Siemens
SIEMENS IEC Supplementary Protector: 1 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, 5SY4, 400V AC (MPN 5SY43018)
3-pole supplementary protector with D-curve trip characteristic, rated 40 A. AC voltage rating 400 V, DC voltage rating 72 V, maximum interrupting rating 10 kA at 400 V AC. Screw clamp terminals, DIN rail mount. Suitable for overload and short-circuit protection in control circuits and equipment
Siemens
3-pole supplementary protector with D-curve trip characteristic, rated 40 A. AC voltage rating 400 V, DC voltage rating 72 V, maximum interrupting rating 10 kA at 400 V AC. Screw clamp terminals, DIN rail mount. Suitable for overload and short-circuit protection in control circuits and equipment
SIEMENS IEC Supplementary Protector: 6 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, 5SY4, 400V AC (MPN 5SY43068)
Siemens
SIEMENS IEC Supplementary Protector: 6 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, 5SY4, 400V AC (MPN 5SY43068)
SIEMENS IEC Supplementary Protector: 3 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, 5SY4, 400V AC (MPN 5SY43038)
Siemens
SIEMENS IEC Supplementary Protector: 3 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, 5SY4, 400V AC (MPN 5SY43038)
SIEMENS IEC Supplementary Protector: 16 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, 5SY4, 400V AC (MPN 5SY43168)
Siemens
SIEMENS IEC Supplementary Protector: 16 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, 5SY4, 400V AC (MPN 5SY43168)
SIEMENS IEC Supplementary Protector: 0.3 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, 5SY4, 400V AC (MPN 5SY43148)
Siemens
SIEMENS IEC Supplementary Protector: 0.3 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, 5SY4, 400V AC (MPN 5SY43148)

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