3UL2302-1A | Siemens 3UL3 Residual Current Transformer 35 mm, 30 mA – 40 A Suitable For Residual Current Monitor – Siemens

Name: 3UL2302-1A | Siemens 3UL3 Residual Current Transformer 35 mm, 30 mA - 40 A Suitable For Residual Current Monitor - Siemens - myelectric.in
Brand: Siemens
SKU: 3UL2302-1A
Price: 58600.00 INR
Availability: OutOfStock

SKU: 3UL2302-1A

₹58,600.00 Excl. GST

Out of stock

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The Siemens 3UL2302-1A is a current transformer (ct), engineered for industrial, commercial, and infrastructure applications in demanding Indian and international installations. Key ratings include 40 A. Buy the 3UL2302-1A | Siemens 3UL3 Residual Current Transformer 35 mm, 30 mA – 40 A Suitable For Residual Current Monitor 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	3UL2302-1A
Category	Current Transformer (CT)
Current Rating	40 A
Sensitivity	30 mA
Standard	IEC 61869-2 / IS 16227-2
Certifications	BIS certified, CE, cULus (select models)

⚡ Key Features

Toroidal cast epoxy resin construction — galvanic isolation between primary and secondary; primary conductor passes through the aperture without any electrical connection to the CT body.
Secondary short-circuit protection essential — always short the 5A secondary terminals before disconnecting any connected instruments; an open-circuit CT secondary develops several kV which destroys insulation and is hazardous to personnel.
Manufactured to IEC 61869-2 / IS 16227-2 — 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 is the significance of the 40 A rating on the 3UL2302-1A?

A: The 40 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: Why is the 30 mA sensitivity specified on the 3UL2302-1A and when should you choose a different rating?

A: 30 mA is the residual current at which the 3UL2302-1A will trip within 300ms. A 30mA sensitivity provides additional shock protection (mandatory for socket circuits per IS 732). 100mA is used for fire protection (no shock protection). 300mA protects feeders without nuisance tripping. Choose based on the circuit’s risk profile — never use >30mA for socket outlet circuits in wet or high-risk locations.