DX3 4 Pole C0.5A AC MCB 408684 | Legrand

Name: Legrand DX3 4-Pole 0.5A AC Miniature Circuit Breaker | 4086 84
Brand: Legrand
SKU: 4086 84
Price: 1611.20 INR
Availability: InStock

SKU: 4086 84

Original price was: ₹4,240.00.Current price is: ₹1,611.20. Excl. GST

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Sourced through authorised channels, the Legrand 4086 84 miniature circuit breaker (mcb) delivers dependable performance for reliable circuit protection and isolation. Key ratings include 4 Poles. myelectric.in stocks the DX3 4 Pole C0.5A AC MCB 408684 | Legrand 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	Legrand
Part Number / SKU	4086 84
Category	Miniature Circuit Breaker (MCB)
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

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 Legrand 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 happens when the 4086 84 trips — how do I identify and reset it?

A: When the 4086 84 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.

Q: Is the 4086 84 suitable for both single-phase and three-phase systems?

A: The 4086 84 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 4086 84 be DIN rail mounted in any standard distribution board?

A: Yes. This Legrand 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.