AU RCCB 63A DP 240V Adi 30mA | L&T – AURAD206303

Name: L&T 63A 240V 30mA DP RCCB | AURAD206303
Brand: Lauritz Knudsen (L&T)
SKU: AURAD206303
Price: 4199.80 INR
Availability: InStock

SKU: AURAD206303

Original price was: ₹9,130.00.Current price is: ₹4,199.80. Excl. GST

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📋 Technical Specifications

Parameter	Value
Brand	AURAD206303
Part Number / SKU	AURAD206303
Category	RCCB
Current Rating	63 A
Voltage Rating	240V AC
Poles	2 Poles
Sensitivity	30 mA
Standard	IEC 61008 / IS 12640-1
Certifications	BIS certified where applicable

⚡ Key Features

30 mA sensitivity — standard personnel shock protection — trips before a lethal current (>50mA) can flow through the body (IEC 61008).
63 A rated load current — the RCCB carries this full circuit current continuously while monitoring the live-neutral balance for any earth leakage.
2 Poles — for single-phase circuits; both live and neutral pass through the sensing core.
Earth-leakage protection only — no overload or short-circuit protection; install in series with an appropriately rated MCB for full circuit protection.
Mandatory test button — simulate a leakage fault to verify the trip mechanism without live fault conditions; test monthly per IS 12640 recommendation.
Type AC — designed for purely sinusoidal AC residual currents on standard residential and commercial circuits.
Manufactured to IEC 61008 / IS 12640-1 — 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 AURAD206303 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.

❓ Frequently Asked Questions

Q: What is the significance of the 63 A rating on the AURAD206303?

A: The 63 A rating is the device’s maximum continuous current carrying capacity under specified conditions (typically 40°C ambient). For circuit design, use 80% of this value as the design current to allow for derating due to grouping, temperature, and future load growth.

Q: Why is the 30 mA sensitivity specified on the AURAD206303 and when should you choose a different rating?

A: 30 mA is the residual current at which the AURAD206303 will trip within 300ms. A 30mA sensitivity provides additional shock protection (mandatory for socket circuits per IS 732). 100mA is used for fire protection (no shock protection). 300mA protects feeders without nuisance tripping. Choose based on the circuit’s risk profile — never use >30mA for socket outlet circuits in wet or high-risk locations.

Q: Will the AURAD206303 trip on earth faults from variable frequency drives (VFDs)?

A: VFDs, LED drivers, and switched-mode power supplies generate high-frequency leakage currents that can cause nuisance tripping in standard Type AC RCCBs. If your installation includes VFDs, use a Type A (for pulsating DC components) or Type F/B RCCB. The AURAD206303 specification (AC or A type) determines suitability — check the product marking.

Q: How many downstream circuits can be protected under the AURAD206303 without nuisance tripping?

A: Downstream MCBs or RCBOs can be connected below the AURAD206303, but the total standing leakage current of all connected circuits must not exceed 30–50% of the RCCB’s rated sensitivity — typically 9–15mA for a 30mA device. Each appliance with a filter (computers, VFDs, LED drivers) contributes 0.5–3mA of standing leakage, so limit the count of such loads per RCCB to prevent cumulative leakage causing nuisance tripping.

Q: What is the difference between an RCCB and a standard MCB — and why use the AURAD206303?

A: A standard MCB protects against overload and short-circuit only. An RCCB adds earth leakage (residual current) detection — it trips on faults as low as 30mA to ground, protecting against electric shock and fire from insulation faults, which a standard MCB cannot detect. Choose the AURAD206303 when the application specifically requires rccb characteristics.