3TY7443-0BD4 | COIL FOR CONTACTORS: 3TF44, 3TF45 DC 42V – Siemens

Name: 3TY7443-0BD4 | COIL FOR CONTACTORS: 3TF44, 3TF45 DC 42V - Siemens - myelectric.in
Brand: Siemens
SKU: 3TY7443-0BD4
Price: 2947.80 INR
Availability: OutOfStock

SKU: 3TY7443-0BD4

Original price was: ₹4,335.00.Current price is: ₹2,947.80. Excl. GST

Out of stock

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The Siemens 3TY7443-0BD4 is a contactor spare part, engineered for motor control and switching in demanding Indian and international installations. Key ratings include 42V AC. Buy the 3TY7443-0BD4 | COIL FOR CONTACTORS: 3TF44, 3TF45 DC 42V online at myelectric.in with GST invoice, genuine-product assurance, and fast delivery across India — bulk and worldwide export enquiries welcome.

📋 Technical Specifications

Parameter	Value
Brand	Siemens
Part Number / SKU	3TY7443-0BD4
Category	Contactor Spare Part
Voltage Rating	42V AC
Standard	IEC 60947 (tested as part of the parent device certification)
Certifications	BIS certified, CE, cULus (select models)

⚡ Key Features

Genuine Siemens OEM accessory — manufactured to the same specification and tested to the same standards as the parent device; ensures mechanical and electrical compatibility that third-party alternatives cannot guarantee.
Direct clip-on or screw-mount to parent device — fits without panel modification or additional wiring between the accessory and main device; field-retrofittable.
Manufactured to IEC 60947 (tested as part of the parent device certification) — complies with the applicable Indian BIS and IEC international standards for this product category.
BIS certified, CE, cULus (select models) — meets Indian regulatory requirements for use in government, commercial, and industrial electrical installations.
Genuine authorised Siemens product — sourced directly from the official distribution network with full manufacturer traceability and warranty.
GST invoice provided for India orders — valid for corporate procurement, government project orders, and public tender supply via myelectric.in.
Worldwide export available — UAE, Singapore, UK, USA, Sri Lanka & more. Contact +91 94814 00316 for bulk pricing and international shipping.

❓ Frequently Asked Questions

Q: What causes a contactor coil to fail and need replacement like the 3TY7443-0BD4?

A: The most common causes are: sustained undervoltage (coil hums and overheats while failing to seal the magnetic circuit), overvoltage, voltage spikes from nearby switching inductive loads, dust or rust on the magnet faces preventing full closure (coil draws inrush current continuously), and simple ageing of the insulation. If coils fail repeatedly, fit a surge suppressor and check the control supply voltage stability before fitting the new coil.

Q: How do I know the 3TY7443-0BD4 replacement coil matches my contactor?

A: Match three things: (1) the contactor series and frame size stated for the 3TY7443-0BD4, (2) the coil voltage — the replacement must equal the control circuit voltage exactly, and (3) AC or DC supply type. Fitting a coil of the wrong voltage causes failure to pull in (too low) or coil burnout (too high). The original coil’s voltage is printed on its face — verify before ordering.