3WT82566AA365AB2 | Siemens Sentron 3WT8 ACB 2500 A, 4 Pole, 66 kA, Manual Draw Out, Overload, Short Circuit & Earth Fault, Microprocessor Based ETU37WT, V-V Terminal – Siemens

Name: 3WT82566AA365AB2 | Siemens Sentron 3WT8 ACB 2500 A, 4 Pole, 66 kA, Manual Draw Out, Overload, Short Circuit &amp; Earth Fault, Microprocessor Based ETU37WT, V-V Terminal - Siemens
Brand: Siemens
SKU: 3WT82566AA365AB2
Availability: OutOfStock

SKU: 3WT82566AA365AB2

Original price was: ₹1,341,985.00.Current price is: ₹617,313.10. Excl. GST

Out of stock

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The Siemens 3WT82566AA365AB2 is an air circuit breaker (acb), engineered for reliable circuit protection and isolation in demanding Indian and international installations. Key ratings include 2500 A, 4 Poles. Buy the 3WT82566AA365AB2 | Siemens Sentron 3WT8 ACB 2500 A, 4 Pole, 66 kA, Manual Draw Out, Overload, Short Circuit & Earth Fault, Microprocessor Based ETU37WT, V-V Terminal 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	3WT82566AA365AB2
Category	Air Circuit Breaker (ACB)
Current Rating	2500 A
Poles	4 Poles
Breaking Capacity	66 kA
Standards	IEC 60947-3 (disconnectors)
Certifications	BIS certified, CE, cULus (select models)

⚡ Key Features

2500 A current rating — confirmed from product specifications; size wiring and terminals to match or exceed this value.
66 kA short-circuit withstand or breaking capacity — protects the installation at high fault current levels.
Manufactured to IEC 60947-3 (disconnectors), IEC 60898, IS 13947, IS 8828 — complies with Indian BIS and IEC international safety standards.
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 is the significance of the 2500 A rating on the 3WT82566AA365AB2?

A: The 2500 A rating is the device’s maximum continuous current carrying capacity under specified conditions (typically 40°C ambient). For circuit design, use 80% of this value as the design current to allow for derating due to grouping, temperature, and future load growth.

Q: What does the 66 kA breaking capacity on the 3WT82566AA365AB2 mean in practice?

A: Breaking capacity (66 kA) is the maximum prospective short-circuit current the 3WT82566AA365AB2 can safely interrupt without damage. Before installing, verify that the prospective fault level at the installation point does not exceed 66 kA — this is checked using a fault level calculation or from the upstream transformer impedance data. Installing a breaker with insufficient breaking capacity is a serious safety violation.

Q: After a short-circuit trip on the 3WT82566AA365AB2, can it be reset and reused immediately?

A: After a short-circuit trip, do not immediately reset the 3WT82566AA365AB2. First, identify and clear the fault. Then inspect the device — if there is visible arc damage, melted insulation, or the handle does not reset smoothly, the device must be replaced. The 66 kA rated breaking capacity is not unlimited — it is the maximum fault current the device can interrupt safely for a defined number of operations (typically 1–3 at full Icu rating). After any significant fault, factor replacement into your maintenance budget.

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