DN4SD MCCB 1250 4P 415V AC – SD 50/60 Hz | L&T – CM93042OOAO

Name: L&T DN4SD MCCB 1250A 4P 415V AC Circuit Breaker | CM93042OOAO
Brand: Lauritz Knudsen (L&T)
SKU: CM93042OOAO
Price: 234300.00 INR
Availability: InStock

SKU: CM93042OOAO

₹234,300.00 Excl. GST

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The CM93042OOAO CM93042OOAO is a mccb, engineered for reliable circuit protection and isolation in demanding Indian and international installations. Key ratings include 415V AC, 4 Poles. Buy the DN4SD MCCB 1250 4P 415V AC – SD 50/60 Hz | L&T 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	CM93042OOAO
Part Number / SKU	CM93042OOAO
Category	MCCB
Voltage Rating	415V AC
Poles	4 Poles
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

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 CM93042OOAO 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: Can the CM93042OOAO be motorised for remote switching and automation?

A: Yes. CM93042OOAO 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 CM93042OOAO 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: Is the CM93042OOAO 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 CM93042OOAO coordination table for the specific contactor-overload-MCCB combination to confirm Type 1 or Type 2 coordination is achieved.

Q: What is the difference between an MCCB and a standard MCB — and why use the CM93042OOAO?

A: A standard MCB protects against overload and short-circuit only. An MCCB handles much higher fault levels and larger current ratings — MCCBs are rated up to 1600A with 25–200kA breaking capacity, compared to MCBs which are capped at typically 125A and 10kA. Choose the CM93042OOAO when the application specifically requires mccb characteristics.