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Siemens Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 80 A - Non-Reversing IEC Contactors
SiemensNon-Reversing IEC Contactors

Siemens Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 80 A

The SIEMENS IEC Magnetic Contactor is a non-reversing contactor with 3 poles and 3NO contacts, rated at 80 A with a 24V DC coil (MPN 3RT20381KB40). It includes integrated surge suppression.

SKU 3G-OTH-51324

Brand
Siemens
Item
Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 80 A
Category
Non-Reversing IEC Contactors
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Siemens
Manufacturer Part Number
3RT20381KB40
Type
80 A
Poles
3
DC Coil
24V
Contacts
3NO
Integrated Surge Suppression
Yes

Technical Documents

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

Product Description

The SIEMENS IEC Magnetic Contactor is a non-reversing contactor with 3 poles and 3NO contacts, rated at 80 A with a 24V DC coil (MPN 3RT20381KB40). It includes integrated surge suppression.

Frequently Asked Questions

What is the SIEMENS IEC Magnetic Contactor 3RT20381KB40 used for?

This non-reversing contactor is used for switching three-phase motors and other inductive loads in industrial automation and HVAC systems. It is rated at 80 A with a 24 VDC coil and includes integrated surge suppression for reliable operation.

What are the specifications of the SIEMENS 3RT20381KB40 contactor?

The SIEMENS IEC Magnetic Contactor (MPN 3RT20381KB40) is a non-reversing, 3-pole device with 3NO contacts, rated at 80 A and a 24 VDC coil. It features integrated surge suppression and is designed for global industrial applications.

Where to buy the SIEMENS 3RT20381KB40 contactor worldwide?

You can source the SIEMENS 3RT20381KB40 contactor through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring a seamless procurement process.

How to install the SIEMENS IEC Magnetic Contactor 3RT20381KB40?

Mount the contactor on a DIN rail or panel, connect the 24 VDC coil to the control circuit, and wire the three-phase power to the main terminals. Ensure the integrated surge suppression is properly grounded. Always follow SIEMENS installation guidelines for safe operation.

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 non-reversing iec contactors. 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 Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 51 A, 24V DC Coil (MPN 3RT20361KB40)
Siemens
SIEMENS IEC Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 51 A, 24V DC Coil (MPN 3RT20361KB40)
SIEMENS IEC Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 65 A, 24V DC Coil (MPN 3RT20371KB40)
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SIEMENS IEC Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 65 A, 24V DC Coil (MPN 3RT20371KB40)
SIEMENS IEC Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 80 A, 24V AC Coil (MPN 3RT20381AC20)
Siemens
SIEMENS IEC Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 80 A, 24V AC Coil (MPN 3RT20381AC20)
SIEMENS IEC Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 41 A, 24V DC Coil (MPN 3RT20351KB40)
Siemens
SIEMENS IEC Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 41 A, 24V DC Coil (MPN 3RT20351KB40)
SIEMENS IEC Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 80 A, 240V AC Coil (MPN 3RT20381AP60)
Siemens
SIEMENS IEC Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 80 A, 240V AC Coil (MPN 3RT20381AP60)
SIEMENS IEC Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 80 A, 208V AC Coil (MPN 3RT20381AM20)
Siemens
SIEMENS IEC Magnetic Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 80 A, 208V AC Coil (MPN 3RT20381AM20)

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