DN2S MCCB 250 4P 415V AC 70kA MTX1.0 50/60 Hz | L&T – CM92161OOOOX1

Name: L&T DN2S MCCB 250A 4P 70kA Circuit Breaker CM92161OOOOX1
Brand: Lauritz Knudsen (L&T)
SKU: CM92161OOOOX1
Price: 103400.00 INR
Availability: InStock

SKU: CM92161OOOOX1

₹103,400.00 Excl. GST

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Sourced through authorised channels, the CM92161OOOOX1 CM92161OOOOX1 mccb delivers dependable performance for reliable circuit protection and isolation. Key ratings include 415V AC, 4 Poles. myelectric.in stocks the DN2S MCCB 250 4P 415V AC 70kA MTX1.0 50/60 Hz | L&T for contractors, panel builders, and project buyers — buy online with GST invoice, or request a bulk quote for domestic supply and export to UAE, Singapore, UK, USA, Sri Lanka and more.

📋 Technical Specifications

Parameter	Value
Brand	CM92161OOOOX1
Part Number / SKU	CM92161OOOOX1
Category	MCCB
Voltage Rating	415V AC
Poles	4 Poles
Breaking Capacity	70 kA
Frequency	60 Hz
Rated Operational Voltage (Ue)	415V AC (50/60 Hz)
Mounting	Fixed, front connected
Rated Frequency	50/60 Hz
Standard	IEC 60947-2 / IS 13947-2
Certifications	BIS certified where applicable

⚡ Key Features

70 kA breaking capacity at 415V AC — safely clears bolted three-phase faults in high-power substations and MV/LV transformer secondaries.
Thermal-magnetic trip unit — factory-calibrated overload and short-circuit protection; suitable for standard feeder circuits without electronic adjustment.
4 Poles — three-phase + switched neutral (TN-S system) for full four-pole isolation per IEC 60364.
Manufactured to IEC 60947-2 / IS 13947-2 — complies with the applicable Indian BIS and IEC international standards for this product category.
BIS certified where applicable — meets Indian regulatory requirements for use in government, commercial, and industrial electrical installations.
Genuine authorised CM92161OOOOX1 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 does the 70 kA breaking capacity on the CM92161OOOOX1 mean in practice?

A: Breaking capacity (70 kA) is the maximum prospective short-circuit current the CM92161OOOOX1 can safely interrupt without damage. Before installing, verify that the prospective fault level at the installation point does not exceed 70 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: Is the CM92161OOOOX1 suitable for use as a motor branch circuit protector (Type E coordination)?

A: MCCBs used for motor branch circuit protection must be coordinated with the downstream overload relay for Type 2 coordination (no damage to contactor or relay on short-circuit). Verify the CM92161OOOOX1 coordination table for the specific contactor-overload-MCCB combination to confirm Type 1 or Type 2 coordination is achieved.

Q: Can the CM92161OOOOX1 be motorised for remote switching and automation?

A: Yes. CM92161OOOOX1 MCCBs in this series support rotary handle adaptation and motorised operating mechanisms as accessories, enabling remote ON/OFF switching via PLC, SCADA, or BMS. Motorised MCCBs are used for automatic load management and remote trip in automated distribution systems.

Q: What trip unit type does the CM92161OOOOX1 use — thermal-magnetic or electronic?

A: Refer to the product label or datasheet for the exact trip unit specification. The trip unit determines adjustability and protection accuracy.

Q: After a short-circuit trip on the CM92161OOOOX1, can it be reset and reused immediately?

A: After a short-circuit trip, do not immediately reset the CM92161OOOOX1. 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 70 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.