EXORA MCB 0.5A DP 500V DC 10kA C Curve | L&T

Name: L&T 0.5A DC MCB, C Curve, 500V 10kA | BJ20E5DC
Brand: Lauritz Knudsen (L&T)
SKU: BJ20E5DC
Price: 1025.80 INR
Availability: OutOfStock

SKU: BJ20E5DC

Original price was: ₹2,230.00.Current price is: ₹1,025.80. Excl. GST

Out of stock

19 People watching this product now!

Order protection

Buy with complete confidence.

We back each order with genuine supply, on-time dispatch and GST or commercial invoicing as required.

Buyer protection on every order

Global DeliveryShipped pan-India and to export markets.

On-Time DeliveryPacked and dispatched on schedule.

100% OriginalFrom brand-authorised channels only.

GST InvoiceCompliant, ITC-ready tax invoice.

Secure PaymentEncrypted, trusted payment gateways.

Also included Dedicated account manager Technical support Bulk & business pricing 3-day replacement

Sourced through authorised channels, the L&T BJ20E5DC miniature circuit breaker (mcb) delivers dependable performance for reliable circuit protection and isolation. Key ratings include 0.5 A, 500V AC, 2 Poles. myelectric.in stocks the EXORA MCB 0.5A DP 500V DC 10kA C Curve | 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	L&T
Part Number / SKU	BJ20E5DC
Category	Miniature Circuit Breaker (MCB)
Current Rating	0.5 A
Voltage Rating	500V AC
Poles	2 Poles
Breaking Capacity	10 kA
Tripping Curve	Curve C
Rated Voltage	230/400V AC
Rated Frequency	50/60 Hz
Magnetic Trip Range	5–10 × In (per IEC 60898-1)
Trip Mechanism	Thermal-magnetic (bimetal overload + electromagnetic short-circuit)
Mounting	35mm DIN rail (EN 60715)
Width	36 mm (2 × 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

Protects circuits at 0.5 A with 10 kA short-circuit breaking capacity — rated for light industrial and commercial distribution boards.
Curve C tripping characteristic — optimised for general-purpose and inductive loads (motors, mixed circuits) — trips magnetically at 5–10× rated current.
2 Poles — protects a single-phase circuit, switching both live and 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 L&T 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 BJ20E5DC protect at its rated 0.5 A?

A: The BJ20E5DC is rated to carry and protect circuits up to 0.5 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 0.5 A rating is used directly. Derate by 20% for ambient temperatures above 40°C.

Q: What does the 10 kA breaking capacity on the BJ20E5DC mean in practice?

A: Breaking capacity (10 kA) is the maximum prospective short-circuit current the BJ20E5DC can safely interrupt without damage. Before installing, verify that the prospective fault level at the installation point does not exceed 10 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: Why is Curve C specified for the BJ20E5DC and what loads is it optimised for?

A: Curve C on the BJ20E5DC trips magnetically at 5–10× rated current, making it ideal for general-purpose circuits including fluorescent lamps, small motors, and mixed loads. Using the wrong curve can cause nuisance tripping (too sensitive) or inadequate protection (not sensitive enough). Always match the curve to the load’s inrush characteristics.

Q: What happens when the BJ20E5DC trips — how do I identify and reset it?

A: When the BJ20E5DC 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 BJ20E5DC suitable for both single-phase and three-phase systems?

A: The BJ20E5DC is a 2 poles device for single-phase circuits. For three-phase circuits, use a 3-pole or 4-pole MCB of the same series.