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SIEMENS IEC Supplementary Protector: 8 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp - D-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SIEMENS IECD-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors

SIEMENS IEC Supplementary Protector: 8 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector (SKU 5SY44088, MPN 5SY44088) is a D-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 8 A Amps. It features a 72V DC rating and a 10kA interrupting capacity…

SKU 3G-OTH-128090

Brand
SIEMENS IEC
Item
Supplementary Protector: 8 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp
Category
D-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
5SY44088
Type
10kA at 400V AC, Screw Clamp, D
AC
400V
DC
72V

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

Product Description

The SIEMENS IEC Supplementary Protector (SKU 5SY44088, MPN 5SY44088) is a D-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector rated at 8 A Amps. It features a 72V DC rating and a 10kA interrupting capacity at 400V AC, with screw clamp terminals. This 5SY4 series device from SIEMENS is designed for overcurrent protection in industrial control panels.

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 5SY44088 used for?

The SIEMENS IEC Supplementary Protector 5SY44088 provides overcurrent protection for industrial control panels and equipment. Its D-curve trip characteristic handles high inrush loads like motors and transformers. Rated 8 A, 72V DC, and 400V AC with 10kA interrupting capacity, it safeguards circuits in manufacturing, automation, and power distribution systems.

What are the specifications of the SIEMENS 5SY44088 supplementary protector?

The SIEMENS 5SY44088 is a 4-pole, D-curve supplementary protector rated 8 A at 400V AC and 72V DC. It has a 10kA interrupting capacity at 400V AC, screw clamp terminals, and UL1077 listing. This 5SY4 series device mounts on DIN rails and is designed for overcurrent protection in industrial control panels.

Where to buy the SIEMENS 5SY44088 supplementary protector worldwide?

You can source the SIEMENS 5SY44088 supplementary protector worldwide through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine SIEMENS IEC components for industrial applications.

How to install the SIEMENS 5SY44088 supplementary protector?

Install the SIEMENS 5SY44088 by snapping it onto a standard DIN rail. Ensure the circuit is de-energized. Connect wires to the screw clamp terminals per the torque specifications in the manual. The D-curve device is suitable for circuits with high inrush currents. Always follow local electrical codes and SIEMENS installation guidelines for safe operation.

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 d-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: 6 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44068)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 6 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44068)
SIEMENS IEC Supplementary Protector: 10 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44108)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 10 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44108)
SIEMENS IEC Supplementary Protector: 1 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44018)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 1 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44018)
SIEMENS IEC Supplementary Protector: 50 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44508)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 50 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44508)
SIEMENS IEC Supplementary Protector: 25 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44258)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 25 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44258)
SIEMENS IEC Supplementary Protector: 0.5 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44058)
SIEMENS IEC
SIEMENS IEC Supplementary Protector: 0.5 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44058)

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40 A, D-curve, 4-pole supplementary protector from the 5SY4 series. Rated 72V DC and 10kA at 400V AC with screw clamp terminals. UL1077 listed for DIN rail mounting. Used for overcurrent protection in industrial control panels, HVAC equipment, and machinery where high inrush loads occur
This 4-pole supplementary protector features a D-curve trip characteristic for overcurrent protection in circuits with high inrush currents, such as motor and transformer loads. Rated 1.6 A, it operates at 400V AC (10kA interrupting capacity) and 72V DC. The screw clamp terminals facilitate wiring, and the DIN rail mount enables compact installation in control panels and machinery
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This 4-pole supplementary protector features a D-curve trip characteristic for overcurrent protection in circuits with high inrush currents, such as motor and transformer loads. Rated 1.6 A, it operates at 400V AC (10kA interrupting capacity) and 72V DC. The screw clamp terminals facilitate wiring, and the DIN rail mount enables compact installation in control panels and machinery
This 4-pole supplementary protector features a D-curve trip characteristic for overcurrent protection in circuits with high inrush loads. Rated 16 A, 400V AC and 72V DC, with a 10kA interrupting capacity at 400V AC. Screw clamp terminals facilitate wiring. Suitable for DIN rail mounting in control panels and equipment
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This 4-pole supplementary protector features a D-curve trip characteristic for overcurrent protection in circuits with high inrush loads. Rated 16 A, 400V AC and 72V DC, with a 10kA interrupting capacity at 400V AC. Screw clamp terminals facilitate wiring. Suitable for DIN rail mounting in control panels and equipment
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This 4-pole supplementary protector features a D-curve trip characteristic for high inrush currents. Rated 0.3 A, 400V AC (10kA breaking capacity) and 72V DC, with screw clamp terminals. Suitable for overcurrent and short-circuit protection in control panels, HVAC, and automation systems where branch-circuit protection is not required
SIEMENS IEC Supplementary Protector: 32 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, D, 400V AC (MPN 5SY44328)
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