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SIEMENS
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3RT20251BB40 - SIRIUS 3 Pole 17A Power Contactor - SIEMENS

Cat No. 3RT20251BB40
Category Power Contactor
Stock Back Ordered
Condition Brand New, Sealed Packaging
Product Type Power Contactor

Back Ordered

$112.75

Lead Time: 25 Working Days.

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Technical Specification

SIEMENS 3RT20251BB40 Power Contactor Technical Specification

Power Contactor
AC1 Rating —
AC3 Rating —
Coil Voltage —
Inbuilt Auxiliary Contact —
Model —
No of Pole —
Range of Product —

Product Details

SIEMENS 3RT20251BB40 - SIRIUS 3 Pole 17A Power Contactor. We are dedicatedly involved in providing an excellent quality products at Electrihub.

Product Dimensions

SIEMENS 3RT20251BB40 dimensions and weight

Dimensions (L × W × H)
Length 9.2 cm
Width 5.4 cm
Height 11.55 cm
Weight
Net Weight 0.603 kg

Dimensions are approximate. For precise dimensional drawings, contact us.

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Product Overview

SIEMENS 3RT20251BB40 - SIRIUS 3 Pole 17A Power Contactor. We are dedicatedly involved in providing an excellent quality products at Electrihub.

Frequently Asked Questions for 3RT20251BB40

The price of SIEMENS 3RT20251BB40 Power Contactor depends on specifications, availability, and market conditions. You can check the latest GST-inclusive price on Electrihub India, which provides
genuine products, transparent billing, and PAN India delivery.
Yes. RAS Electrihub Private Limited operates as an ISO-certified organization, ensuring quality sourcing, authentic products, and standardized procurement and delivery processes.
Yes. RAS Electrihub Private Limited provides PAN India delivery with reliable logistics, safe packaging, and doorstep delivery across all states and union territories.
The SIEMENS 3RT20251BB40 power contactor is widely used for switching industrial motors, pumps, compressors, and HVAC equipment in manufacturing plants and commercial facilities.
Yes, PLC outputs can energize the coil of the SIEMENS 3RT20251BB40 power contactor, allowing automated switching of motors and electrical loads in industrial automation systems.
Auxiliary contact blocks can typically be added to the SIEMENS 3RT20251BB40 contactor to provide additional NO or NC contacts for signaling, interlocking, and control circuit feedback.
The SIEMENS 3RT20251BB40 contactor can be paired with compatible thermal overload relays to provide protection against motor overload, phase failure, and prolonged overcurrent conditions.
The SIEMENS 3RT20251BB40 contactor is frequently used in HVAC systems to control compressors, fans, chillers, and air‑handling units in commercial buildings.
The SIEMENS 3RT20251BB40 power contactor typically features a 3‑pole configuration designed for motor switching applications. It generally supports AC‑3 utilization category for controlling three‑phase induction motors, with rated operational voltage up to 690V AC and high electrical and mechanical endurance. The contactor is compatible with auxiliary contact blocks and thermal overload relays and is designed for DIN rail or panel mounting in industrial control panels. For exact ratings, engineers can refer to the manufacturer datasheet or contact RAS Electrihub Private Limited for detailed technical support.
Yes. RAS Electrihub Private Limited issues GST-compliant invoices and also supports PO-based invoicing for businesses, contractors, and organizations across India.

Reviews & Ratings

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Harish Choudhary Mar 18, 2026

Using this SIEMENS model 3RT20251BB40 in HVAC panel, operation is smooth and reliable.

Suresh Patel Mar 18, 2026

3RT20251BB40 from SIEMENS is giving stable coil pickup and drop performance. Suitable for long runtime applications.

Harish Choudhary Mar 18, 2026

SIEMENS contactor 3RT20251BB40 shows consistent performance in heavy load conditions. Good for industrial use.

Sanjay Kulkarni Mar 18, 2026

SIEMENS 3RT20251BB40 is working reliably in our automation setup. Switching is clean with minimal noise.

Pradeep Nair Mar 18, 2026

Compact design of 3RT20251BB40 helps in panel space management. Build quality is solid.

James Anderson Mar 17, 2026

We used the 3RT20251BB40 contactor from SIEMENS for an industrial compressor panel. Installation was easy and the switching response is consistent.

Robert Taylor Mar 17, 2026

Good build quality on the SIEMENS 3RT20251BB40 power contactor. Our panel builders found it easy to mount and wiring terminals are well designed.

Vikas Yadav Mar 17, 2026

Purchased the 3RT20251BB40 for a motor starter application. The SIEMENS contactor performs well and there are no heating issues during continuous operation.

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