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Siemens Supplementary Protector: 1.6 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp - A-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensA-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens Supplementary Protector: 1.6 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp

The Siemens 5SY4 series IEC supplementary protector is a 1-pole, A-curve, DIN rail-mount device rated at 1.6 A. It carries a maximum AIR rating of 10kA at 230/400V AC and a DC voltage rating of 72V DC, with screw…

SKU 3G-OTH-21475

Brand
Siemens
Item
Supplementary Protector: 1.6 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp
Category
A-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

Siemens
Manufacturer Part Number
5SY41155
Series
5SY4
Type
10kA at 230/400V AC, Screw Clamp, 5SY4, A
DC
72V
Curve Type
A
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 is a 1-pole, A-curve, DIN rail-mount device rated at 1.6 A. It carries a maximum AIR rating of 10kA at 230/400V AC and a DC voltage rating of 72V DC, with screw clamp terminals. This UL1077-listed supplementary protector (MPN 5SY41155) is designed for branch circuit protection in industrial control panels.

Frequently Asked Questions

What is the Siemens 5SY41155 supplementary protector used for?

The Siemens 5SY41155 is an A-curve, 1-pole supplementary protector rated at 1.6 A. It provides branch circuit protection in industrial control panels, safeguarding wiring and components against overloads and short circuits. Its UL1077 listing makes it suitable for use in machinery and panel-building applications worldwide.

What are the specifications of the Siemens 5SY41155?

The Siemens 5SY41155 is a 1-pole supplementary protector with a 1.6 A rating, A-curve trip characteristic, and screw clamp terminals. It has a max AIR rating of 10kA at 230/400V AC and a DC voltage rating of 72V DC. It is part of the 5SY4 series and is UL1077 listed for DIN rail mounting.

Where to buy the Siemens 5SY41155 worldwide?

3G Electric supplies the Siemens 5SY41155 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 UL1077-listed 1.6 A, A-curve device.

How to install the Siemens 5SY41155 supplementary protector?

Install the Siemens 5SY41155 on a standard DIN rail in a control panel. Ensure the circuit is de-energized before wiring. Connect conductors to the screw clamp terminals per the torque specifications in the datasheet. The A-curve characteristic is ideal for protecting sensitive electronic loads from short circuits and overloads.

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 a-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: 8 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, A (MPN 5SY41085). 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: A.
SIEMENS IEC Supplementary Protector: 16 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, A (MPN 5SY41165). 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: A.
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