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Siemens Supplementary Protector: 40 A Amps, 5kA at 230/400V AC, Screw Clamp, 5SY6 - B-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SiemensB-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Siemens Supplementary Protector: 40 A Amps, 5kA at 230/400V AC, Screw Clamp, 5SY6

The SIEMENS IEC Supplementary Protector (SKU 30XY10) is a B-Curve, 1-Pole UL1077 DIN Rail-Mount supplementary protector rated at 40 A Amps. It features a Max. AIR Rating of 5kA at 230/400V AC, an AC Voltage Rating of…

SKU 3G-OTH-20628

Brand
Siemens
Item
Supplementary Protector: 40 A Amps, 5kA at 230/400V AC, Screw Clamp, 5SY6
Category
B-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

Siemens
Manufacturer Part Number
5SY61406
Series
5SY6
Type
5kA at 230/400V AC, Screw Clamp, 5SY6
AC
230/400V
Curve Type
B
Max. AIR Rating
5kA at 230/400V AC
AC Voltage Rating
230/400V AC
DC Voltage Rating
Not Rated
Terminal Connection
Screw Clamp
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Supplementary Protector (SKU 30XY10) is a B-Curve, 1-Pole UL1077 DIN Rail-Mount supplementary protector rated at 40 A Amps. It features a Max. AIR Rating of 5kA at 230/400V AC, an AC Voltage Rating of 230/400V AC, and a Screw Clamp terminal connection. This unit is part of the 5SY6 series (MPN 5SY61406) and is not rated for DC voltage.

Frequently Asked Questions

What is the SIEMENS 5SY61406 supplementary protector used for?

The SIEMENS 5SY61406 is a B-Curve, 1-Pole UL1077 DIN Rail-Mount supplementary protector rated at 40 A Amps. It protects branch circuits and equipment from overloads and short circuits in industrial control panels, HVAC systems, and machinery, with a 5kA interrupting rating at 230/400V AC.

What are the specifications of the SIEMENS 5SY61406?

The SIEMENS 5SY61406 is a 40 A supplementary protector with a B-Curve trip characteristic, 1-Pole design, and screw clamp terminals. It has a max. AIR rating of 5kA at 230/400V AC, AC voltage rating of 230/400V AC, and is not rated for DC voltage. It is part of the 5SY6 series.

Where to buy the SIEMENS 5SY61406 in worldwide?

3G Electric supplies the SIEMENS 5SY61406 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 40 A, B-Curve unit.

How to select a supplementary protector like the SIEMENS 5SY61406?

Select a supplementary protector by matching the voltage rating (230/400V AC), current rating (40 A), and interrupting capacity (5kA) to your circuit. The B-Curve of the SIEMENS 5SY61406 is ideal for resistive and lighting loads. Ensure DIN rail mounting and screw clamp terminals fit your panel layout.

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.
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
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.
Siemens
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.