Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Siemens Magnetic Contactor: 3 Poles, 24V DC, 7 A - Safety Contactors
SiemensSafety Contactors

Siemens Magnetic Contactor: 3 Poles, 24V DC, 7 A

The SIEMENS IEC Magnetic Contactor: 3 Poles is a safety contactor from the SIRIUS 3RT series, operating at 24V DC with a 7 A rating. This 3-pole unit, model 3RT20151BB443MA0, does not include integrated surge…

SKU 3G-OTH-40211

Brand
Siemens
Item
Magnetic Contactor: 3 Poles, 24V DC, 7 A
Category
Safety Contactors
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Siemens
Manufacturer Part Number
3RT20151BB443MA0
Type
7 A, SIRIUS 3RT Safety Contactors
DC
24V
Integrated Surge Suppression
No
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SIEMENS IEC Magnetic Contactor: 3 Poles is a safety contactor from the SIRIUS 3RT series, operating at 24V DC with a 7 A rating. This 3-pole unit, model 3RT20151BB443MA0, does not include integrated surge suppression.

Frequently Asked Questions

What is the SIEMENS 3RT20151BB443MA0 safety contactor used for?

The SIEMENS 3RT20151BB443MA0 is a SIRIUS 3RT safety contactor used for safely switching and isolating industrial machinery in emergency-stop and safety circuits. It is commonly applied in conveyor systems, packaging lines, and robotic cells where reliable disconnection under 24 VDC control is required.

What are the specifications of the SIEMENS 3RT20151BB443MA0 contactor?

This SIEMENS IEC magnetic contactor has 3 poles, a 24 VDC coil, and a 7 A rated operational current. It is part of the SIRIUS 3RT safety contactor series, model 3RT20151BB443MA0, and does not include integrated surge suppression. It is designed for safety-related switching applications.

Where to buy the SIEMENS 3RT20151BB443MA0 contactor worldwide?

You can source the SIEMENS 3RT20151BB443MA0 contactor worldwide through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the SIEMENS 3RT20151BB443MA0 safety contactor?

Mount the SIEMENS 3RT20151BB443MA0 on a DIN rail or with screws, ensuring the coil voltage matches your 24 VDC control supply. Wire the main poles in series with the safety circuit and connect the coil to the safety relay output. Follow the SIRIUS 3RT manual for torque and clearance specifications.

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 safety contactors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 25 A, SIRIUS 3RT Safety Contactors (MPN 3RT20261BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 25 A, SIRIUS 3RT Safety Contactors (MPN 3RT20261BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 12 A, SIRIUS 3RT Safety Contactors (MPN 3RT20241BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 12 A, SIRIUS 3RT Safety Contactors (MPN 3RT20241BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 9 A, SIRIUS 3RT Safety Contactors (MPN 3RT20161BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 9 A, SIRIUS 3RT Safety Contactors (MPN 3RT20161BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 12 A, SIRIUS 3RT Safety Contactors (MPN 3RT20171BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 12 A, SIRIUS 3RT Safety Contactors (MPN 3RT20171BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 32 A, SIRIUS 3RT Safety Contactors (MPN 3RT20271BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 32 A, SIRIUS 3RT Safety Contactors (MPN 3RT20271BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 38 A, SIRIUS 3RT Safety Contactors (MPN 3RT20281BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 38 A, SIRIUS 3RT Safety Contactors (MPN 3RT20281BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.

More from Siemens

View all Siemens parts →
SIEMENS IEC Magnetic Contactor: 3 Poles, 120V AC, 7 A, SIRIUS 3RT Safety Contactors (MPN 3RT20151AK643MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 120V AC, 7 A, SIRIUS 3RT Safety Contactors (MPN 3RT20151AK643MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
SIEMENS IEC Magnetic Contactor: 3 Poles, 23-26V AC/DC, 150 A, SIRIUS 3RT Safety Contactors (MPN 3RT10556AB363PA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 23-26V AC/DC, 150 A, SIRIUS 3RT Safety Contactors (MPN 3RT10556AB363PA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 17 A, SIRIUS 3RT Safety Contactors (MPN 3RT20251BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 24V DC, 17 A, SIRIUS 3RT Safety Contactors (MPN 3RT20251BB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
SIEMENS IEC Magnetic Contactor: 3 Poles, 120V AC, 16 A, SIRIUS 3RT Safety Contactors (MPN 3RT20181AK643MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 120V AC, 16 A, SIRIUS 3RT Safety Contactors (MPN 3RT20181AK643MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
SIEMENS IEC Power Contactor: 3 Poles, 24V DC, 25 A, SIRIUS 3RT Safety Contactors (MPN 3RT20261DB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: Yes.
Siemens
SIEMENS IEC Power Contactor: 3 Poles, 24V DC, 25 A, SIRIUS 3RT Safety Contactors (MPN 3RT20261DB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: Yes.
SIEMENS IEC Magnetic Contactor: 3 Poles, 110-127V AC/DC, 185 A, SIRIUS 3RT Safety Contactors (MPN 3RT10566AF363PA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 110-127V AC/DC, 185 A, SIRIUS 3RT Safety Contactors (MPN 3RT10566AF363PA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
SIEMENS IEC Magnetic Contactor: 3 Poles, 120V AC, 12 A, SIRIUS 3RT Safety Contactors (MPN 3RT20171AK643MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
Siemens
SIEMENS IEC Magnetic Contactor: 3 Poles, 120V AC, 12 A, SIRIUS 3RT Safety Contactors (MPN 3RT20171AK643MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: No.
SIEMENS IEC Power Contactor: 3 Poles, 24V DC, 38 A, SIRIUS 3RT Safety Contactors (MPN 3RT20281FB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: Yes.
Siemens
SIEMENS IEC Power Contactor: 3 Poles, 24V DC, 38 A, SIRIUS 3RT Safety Contactors (MPN 3RT20281FB443MA0). Key specifications — Brand: SIEMENS; Integrated Surge Suppression: Yes.