4NC5117-0CC21 | Siemens Sentron 4NC5 Current Transformer 100/1 A, 2.5 VA, CL 1.0 – Siemens

Name: 4NC5117-0CC21 | Siemens Sentron 4NC5 Current Transformer 100/1 A, 2.5 VA, CL 1.0 - Siemens - myelectric.in
Brand: Siemens
SKU: 4NC5117-0CC21
Price: 26470.00 INR
Availability: OutOfStock

SKU: 4NC5117-0CC21

₹26,470.00 Excl. GST

Out of stock

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Looking for the 4NC5117-0CC21 | Siemens Sentron 4NC5 Current Transformer 100/1 A, 2.5 VA, CL 1.0? This genuine Siemens current transformer (ct) is built for industrial, commercial, and infrastructure applications, combining proven reliability with full compliance to applicable IEC/IS standards. Order part number 4NC5117-0CC21 from myelectric.in — a trusted Siemens supplier offering competitive pricing, GST billing, and shipping across India and overseas.

📋 Technical Specifications

Parameter	Value
Brand	Siemens
Part Number / SKU	4NC5117-0CC21
Category	Current Transformer (CT)
CT Ratio	100/1 A
Standard	IEC 61869-2 / IS 16227-2
Certifications	BIS certified, CE, cULus (select models)

⚡ Key Features

100/1 A turns ratio — steps down 100A primary line current to standard 5A secondary; directly compatible with 5A-rated energy meters, protection relays, and power analysers.
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 instruments and meters are compatible with the 100/1 A CT ratio of the 4NC5117-0CC21?

A: The 100/1 A CT ratio means for every 100A in the primary (main) conductor, the secondary outputs 1 AA. Instruments connected to the secondary — ammeters, energy meters, protection relays — must be rated for 5A (or 1A where specified). Set the CT ratio in the connected meter/relay to 100/1 A so readings display the true primary current. Never open-circuit a CT secondary — this generates dangerous high voltages.