MCB TPN C CURVE 63 A Havells | DHMZCTNF063

SKU: DHMZCTNF063

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The Leading Brand DHMZCTNF063 is a miniature circuit breaker (mcb), engineered for reliable circuit protection and isolation in demanding Indian and international installations. Key ratings include 63 A, 4 Poles. Buy the MCB TPN C CURVE 63 A Havells | DHMZCTNF063 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	Leading Brand
Part Number / SKU	DHMZCTNF063
Category	Miniature Circuit Breaker (MCB)
Current Rating	63 A
Poles	4 Poles
Rated Voltage	230/400V AC
Rated Frequency	50/60 Hz
Trip Mechanism	Thermal-magnetic (bimetal overload + electromagnetic short-circuit)
Mounting	35mm DIN rail (EN 60715)
Width	72 mm (4 × 18mm modules)
Electrical Endurance	≥ 20,000 operating cycles (per IEC 60898-1)
Pollution Degree	3 (per IEC 60664-1)
Standard	IS 8828 / IEC 60898-1 (residential) and IEC 60947-2 (industrial)
Certifications	BIS certified where applicable

⚡ Key Features

63 A rated current — provides overload and short-circuit protection for the connected circuit.
4 Poles — protects a three-phase four-wire circuit with switched neutral; fits standard 35mm DIN rail in distribution boards.
Thermal-magnetic trip mechanism — bimetal element trips on sustained overload, instantaneous magnetic trip on short-circuit; two independent protection functions in one compact module.
Manufactured to IS 8828 / IEC 60898-1 (residential) and IEC 60947-2 (industrial) — 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 Leading Brand 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 load can the DHMZCTNF063 protect at its rated 63 A?

A: The DHMZCTNF063 is rated to carry and protect circuits up to 63 A continuously. For motor loads, ensure the full-load current (FLC) of the motor does not exceed this rating. For resistive loads (heaters, lighting), the 63 A rating is used directly. Derate by 20% for ambient temperatures above 40°C.

Q: Is the DHMZCTNF063 suitable for both single-phase and three-phase systems?

A: The DHMZCTNF063 with 4 Poles can protect three-phase circuits. Each pole simultaneously interrupts one phase — ensuring all phases are de-energised on a fault.

Q: Can the DHMZCTNF063 be DIN rail mounted in any standard distribution board?

A: Yes. This Leading Brand MCB uses the standard 35mm EN 60715 DIN rail and 17.5mm module width, making it compatible with all major brand distribution boards and enclosures. Terminal capacity accommodates both rigid and flexible conductors up to the rated cross-section.

Q: What happens when the DHMZCTNF063 trips — how do I identify and reset it?

A: When the DHMZCTNF063 trips on fault, the handle moves to a midway position (between ON and OFF), distinctly visible from a distance. To reset: (1) identify and rectify the fault, (2) push the handle fully to OFF, (3) then switch back to ON. Never force-reset without investigating the fault cause.