Tripper RCBO(EL+MCB) 6A DP 240V AC 6kA 100mA C Curve | L&T – CB90003OOTO

SKU: CB90003OOTO

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The CB90003OOTO CB90003OOTO is a miniature circuit breaker (mcb), engineered for reliable circuit protection and isolation in demanding Indian and international installations. Key ratings include 6 A, 240V AC, 2 Poles. Buy the Tripper RCBO(EL+MCB) 6A DP 240V AC 6kA 100mA C Curve | 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	CB90003OOTO
Part Number / SKU	CB90003OOTO
Category	Miniature Circuit Breaker (MCB)
Current Rating	6 A
Voltage Rating	240V AC
Poles	2 Poles
Breaking Capacity	6 kA
Tripping Curve	Curve C
Sensitivity	100 mA
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 6 A with 6 kA short-circuit breaking capacity — rated for residential and commercial final circuits.
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 CB90003OOTO 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 CB90003OOTO protect at its rated 6 A?

A: The CB90003OOTO is rated to carry and protect circuits up to 6 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 6 A rating is used directly. Derate by 20% for ambient temperatures above 40°C.

Q: What does the 6 kA breaking capacity on the CB90003OOTO mean in practice?

A: Breaking capacity (6 kA) is the maximum prospective short-circuit current the CB90003OOTO can safely interrupt without damage. Before installing, verify that the prospective fault level at the installation point does not exceed 6 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 CB90003OOTO and what loads is it optimised for?

A: Curve C on the CB90003OOTO 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: Why is the 100 mA sensitivity specified on the CB90003OOTO and when should you choose a different rating?

A: 100 mA is the residual current at which the CB90003OOTO 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: Is the CB90003OOTO suitable for both single-phase and three-phase systems?

A: The CB90003OOTO 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.