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Siemens Supplementary Protector: 13 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp - C-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensC-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens Supplementary Protector: 13 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp

The SIEMENS IEC Supplementary Protector (SKU 5SY44137, MPN 5SY44137) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series, rated at 13 A Amps. It features a maximum AIR rating of…

SKU 3G-OTH-20525

Brand
Siemens
Item
Supplementary Protector: 13 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp
Category
C-Curve, 4-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
5SY44137
Series
5SY4
Type
10kA at 400V AC, Screw Clamp, C
AC
400V
DC
72V
Max. AIR Rating
10kA at 400V AC
DC Voltage Rating
72V DC
Terminal Connection
Screw Clamp

Technical Documents

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

Product Description

The SIEMENS IEC Supplementary Protector (SKU 5SY44137, MPN 5SY44137) is a C-Curve, 4-Pole UL1077 DIN Rail-Mount supplementary protector from the 5SY4 series, rated at 13 A Amps. It features a maximum AIR rating of 10kA at 400V AC, a DC voltage rating of 72V DC, and a screw clamp terminal connection.

Frequently Asked Questions

What is the SIEMENS 5SY44137 supplementary protector used for?

The SIEMENS 5SY44137 is a C-curve, 4-pole supplementary protector rated 13 A at 400 V AC and 72 V DC. It protects branch circuits and control panels against overloads and short circuits in industrial automation, HVAC, and machinery applications.

What are the specifications of the SIEMENS 5SY44137?

The SIEMENS 5SY44137 is a 4-pole supplementary protector from the 5SY4 series, rated 13 A, 400 V AC, 72 V DC, with a maximum AIR rating of 10 kA at 400 V AC. It features a C-curve trip characteristic and screw clamp terminals for secure wiring.

Where to buy the SIEMENS 5SY44137 worldwide?

3G Electric supplies the SIEMENS 5SY44137 supplementary protector to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this and other Siemens industrial control components.

How to select the right supplementary protector for a 400 V AC circuit?

Select a supplementary protector like the SIEMENS 5SY44137 by matching voltage (400 V AC), current rating (13 A), and interrupting capacity (10 kA). The C-curve is suitable for moderate inrush loads such as motors and transformers. Always verify UL1077 listing for branch circuit protection.

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 c-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: 32 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44327)
Siemens
SIEMENS IEC Supplementary Protector: 32 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44327)
SIEMENS IEC Supplementary Protector: 0.3 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44147)
Siemens
SIEMENS IEC Supplementary Protector: 0.3 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44147)
SIEMENS IEC Supplementary Protector: 3 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44037)
Siemens
SIEMENS IEC Supplementary Protector: 3 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44037)
SIEMENS IEC Supplementary Protector: 1 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44017)
Siemens
SIEMENS IEC Supplementary Protector: 1 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44017)
SIEMENS IEC Supplementary Protector: 20 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44207)
Siemens
SIEMENS IEC Supplementary Protector: 20 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44207)

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SIEMENS IEC Supplementary Protector: 50 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44507)
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SIEMENS IEC Supplementary Protector: 50 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44507)
SIEMENS IEC Supplementary Protector: 40 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44407)
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SIEMENS IEC Supplementary Protector: 40 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44407)
SIEMENS IEC Supplementary Protector: 10 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44107)
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SIEMENS IEC Supplementary Protector: 10 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44107)
SIEMENS IEC Supplementary Protector: 16 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44167)
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SIEMENS IEC Supplementary Protector: 16 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44167)
SIEMENS IEC Supplementary Protector: 4 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44047)
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SIEMENS IEC Supplementary Protector: 4 A Amps, 72V DC, 10kA at 400V AC, Screw Clamp, C, 400V AC (MPN 5SY44047)