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Siemens Supplementary Protector: 32 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp - B-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensB-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens Supplementary Protector: 32 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp

The Siemens 5SY4 series IEC supplementary protector (SKU 30XU48) is a B-curve, 1-pole UL1077 DIN rail-mount device rated at 32 A amps. It features a maximum AIR rating of 10kA at 230/400V AC, an AC voltage rating of…

SKU 3G-OTH-20873

Brand
Siemens
Item
Supplementary Protector: 32 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp
Category
B-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

Siemens
Manufacturer Part Number
5SY41326
Series
5SY4
Type
10kA at 230/400V AC, Screw Clamp, 5SY4, B
DC
72V
Curve Type
B
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 (SKU 30XU48) is a B-curve, 1-pole UL1077 DIN rail-mount device rated at 32 A amps. It features a maximum AIR rating of 10kA at 230/400V AC, an AC voltage rating of 230/400V AC, and a DC voltage rating of 72V DC, with screw clamp terminals.

Frequently Asked Questions

What is the Siemens 5SY41326 supplementary protector used for?

The Siemens 5SY41326 is a B-curve, 1-pole UL1077 DIN rail-mount supplementary protector rated at 32 A. It protects branch circuits and equipment from overcurrent and short circuits in industrial control panels, HVAC systems, and machinery across 14 industrial departments.

What are the specifications of the Siemens 5SY4 32 A supplementary protector?

The Siemens 5SY4 (MPN 5SY41326) is rated 32 A, 230/400V AC, 72V DC, with a max AIR of 10kA at 230/400V AC. It features a B curve, screw clamp terminals, and 1-pole DIN rail mounting. It complies with UL1077 for supplementary protection.

Where to buy the Siemens 5SY41326 supplementary protector worldwide?

3G Electric supplies the Siemens 5SY41326 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 B-curve, 32 A, 72V DC device.

How to install a Siemens 5SY4 supplementary protector on a DIN rail?

Snap the Siemens 5SY4 onto a standard 35 mm DIN rail until it locks. Connect phase and neutral wires to the screw clamp terminals (torque to manufacturer specs). Ensure the B-curve device matches the load type and that the system voltage does not exceed 230/400V AC or 72V DC.

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 b-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: 25 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, B (MPN 5SY41256). 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: B.
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SIEMENS IEC Supplementary Protector: 13 A Amps, 72V DC, 10kA at 230/400V AC, Screw Clamp, 5SY4, B (MPN 5SY41136). 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: B.
SIEMENS IEC Supplementary Protector: 25 A Amps, 5kA at 230/400V AC, Screw Clamp, 5SY6, 230/400V AC (MPN 5SY61256). Key specifications — Brand: SIEMENS; Terminal Connection: Screw Clamp; DC Voltage Rating: Not Rated; Max. AIR Rating: 5kA at 230/400V AC; Series: 5SY6; AC Voltage Rating: 230/400V AC; Curve Type: B.
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SIEMENS IEC Supplementary Protector: 25 A Amps, 5kA at 230/400V AC, Screw Clamp, 5SY6, 230/400V AC (MPN 5SY61256). Key specifications — Brand: SIEMENS; Terminal Connection: Screw Clamp; DC Voltage Rating: Not Rated; Max. AIR Rating: 5kA at 230/400V AC; Series: 5SY6; AC Voltage Rating: 230/400V AC; Curve Type: B.