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SIEMENS IEC 5SY44165 A-Curve 4-Pole UL1077 Supplementary Protector - A-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SIEMENS IECA-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors

SIEMENS IEC 5SY44165 A-Curve 4-Pole UL1077 Supplementary Protector

The SIEMENS IEC Supplementary Protector (MPN 5SY44165) is a 16 A, A-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series. It is rated for 72V DC and has a breaking capacity of 10kA at 400V…

SKU 3G-OTH-127843

Brand
SIEMENS IEC
Item
5SY44165 A-Curve 4-Pole UL1077 Supplementary Protector
Category
A-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

SIEMENS IEC
Manufacturer Part Number
5SY44165
Type
10kA at 400V AC, Screw Clamp, A
AC
400V
DC
72V

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SIEMENS IEC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Supplementary Protector (MPN 5SY44165) is a 16 A, A-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series. It is rated for 72V DC and has a breaking capacity of 10kA at 400V AC, with screw clamp terminals.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SIEMENS IEC Supplementary Protector 5SY44165 used for?

The SIEMENS IEC Supplementary Protector 5SY44165 is used for overcurrent protection in industrial control panels, HVAC equipment, and machinery. Its A-Curve trip characteristic suits resistive loads and low-inrush circuits. As a UL1077 supplementary protector, it is installed on DIN rails in branch circuits where a full circuit breaker is not required.

What are the specifications of the SIEMENS 5SY44165 supplementary protector?

The SIEMENS 5SY44165 is a 16 A, A-Curve, 4-Pole supplementary protector from the 5SY4 series. It is rated for 72V DC and has a breaking capacity of 10kA at 400V AC. Terminals are screw clamp type. It is UL1077 listed for DIN-rail mounting and manufactured by SIEMENS.

Where to buy the SIEMENS 5SY44165 supplementary protector worldwide?

You can source the SIEMENS 5SY44165 supplementary protector through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable supply for this SIEMENS 5SY4 series protector.

How to install the SIEMENS 5SY44165 supplementary protector on a DIN rail?

To install the SIEMENS 5SY44165, snap it onto a standard 35 mm DIN rail. Ensure the rail is clean and the protector clips engage firmly. Connect wires to the screw clamp terminals using the correct torque per SIEMENS guidelines. Verify the system is de-energized before installation. This A-Curve protector is for supplementary overcurrent protection only.

Used in

Common applications for SIEMENS IEC
Motor control centers — Siemens 5SY4 D-curve supplementary protectors (e.g., 5SY42108) for motor branch circuit protection
HVAC equipment — A-curve protectors (e.g., 5SY42255) for compressor and fan motor overcurrent protection
Industrial conveyor systems — 4-pole D-curve protectors (e.g., 5SY44168) for three-phase motor protection with neutral
Pump control panels — 2-pole supplementary protectors (e.g., 5SY42038) for single-phase pump motor protection
Machine tool control circuits — A-curve protectors (e.g., 5SY44155) for solenoid valve and relay protection
Power distribution sub-panels — 4-pole protectors (e.g., 5SY44155) for three-phase branch circuit protection in light industrial settings

SIEMENS IEC Products

3G Electric supplies SIEMENS IEC a-curve, 4-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: 20 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44205)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 20 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44205)
SIEMENS IEC Supplementary Protector: 50 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44505)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 50 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44505)
SIEMENS IEC Supplementary Protector: 32 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44325)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 32 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44325)
SIEMENS IEC Supplementary Protector: 63 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44635)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 63 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44635)
SIEMENS IEC Supplementary Protector: 25 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44255)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 25 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44255)
SIEMENS IEC Supplementary Protector: 10 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44105)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 10 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, A, 400V AC (MPN 5SY44105)

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