Schneider C40N32D400

Brand: Schneider
Model: C40N32D400

Inventory situation: Goods are available in stock.

Product features

Schneider C40N32D400 is a high-quality molded case circuit breaker (MCCB) designed by Schneider Electric, a trusted leader in electrical equipment.This 3-pole 3D circuit breaker, a key component of the ComPacT NSX400N series, provides dependable performance for commercial and industrial power distribution systems. It satisfies the requirements of the majority of medium to large electrical setups with a rated current of 400A (at 40°C ambient temperature) and a rated operating voltage of 690V AC.

The Schneider C40N32D400's powerful short-circuit breaking capability is one of its best qualities. Its remarkable 50 kA rated ultimate short-circuit breaking capacity at 415V AC ensures safety during unexpected electrical failures. Additionally, it functions well at 85 kA at 220/240V AC, 42 kA at 440V AC, and 10 kA at 660/690V AC. The breaker's durability and defense against electrical hazards are further improved by its 800V AC rated insulation voltage and 8kV rated impulse withstand voltage.

The Schneider C40N32D400 provides complete protection features, including long-time, short-time, and instantaneous (LSoI) protection, thanks to its MicroLogic 2.3 electronic trip unit. With time-delay characteristics that react suitably to overloads, the long-time protection current (Ir) can be adjusted from 160A to 400A, with 400 seconds at 1.5×Ir, 16 seconds at 6×Ir, and 11 seconds at 7.2×Ir. In order to respond quickly to severe short circuits, the instantaneous protection current (Ii) is fixed at 4800A, while the short-time protection current (Isd) can be adjusted between 1.5 and 10×Ir.

Specifications

Model	C40N32D400
Product Type	ComPacT NSX400N Series Molded Case Circuit Breaker
Poles	3 Pole 3D (3P + Protective Pole)
Rated Current	400A
Rated Operating Voltage	690V AC 50/60Hz
Rated Insulation Voltage	800V AC 50/60Hz
Rated Impulse Withstand Voltage	8kV
Dimensions (W × H × D)	140mm × 255mm × 110mm

Precautions

To guarantee safe operation, safeguard equipment, and maintain dependable performance, it is essential to take certain precautions when using the Schneider C40N32D400 molded case circuit breaker (MCCB). First, only certified electricians who are familiar with electrical safety regulations should install the Schneider C40N32D400. Do not attempt DIY installation as improper wiring or mounting can result in short circuits, equipment damage, or safety risks. Make sure the circuit's voltage and current are in line with the breaker's specifications. For example, the Schneider C40N32D400 has a rated operating voltage of 690V AC and a rated current of 400A (at 40°C). Avoid exceeding these limits to prevent overloads that could jeopardize protection functions.

Second, pay close attention to the operating environment of the Schneider C40N32D400. This MCCB has an IP40 protection rating, meaning it is dust-resistant but not waterproof-avoid installing it in damp, wet, or extremely dusty areas, as moisture or debris can affect internal components. Keep the breaker within its recommended temperature range (-25°C to +70°C) for storage and operation; extreme heat or cold can reduce its mechanical and electrical durability. If using the Schneider C40N32D400 at altitudes above 2000 meters, remember to derate its capacity as required, as higher altitudes can impact insulation and performance.

FAQ

Q: What is the Schneider C40N32D400, and what is its primary function?

A: A Molded Case Circuit Breaker (MCB) from Schneider Electric's well-known product line is the Schneider C40N32D400. Its main purpose is to give electrical circuits dependable overcurrent and short-circuit protection. In the event of an overload or a serious fault (short circuit), it automatically cuts off electrical flow, preventing damage to connected equipment and lowering the risk of fire.

Q: What safety features does this Schneider breaker offer?

A: The NSX series, which includes models like the C40N32D400, is a high-end molded case circuit breaker that is designed for safety. It lowers the risk of fire and helps prevent damage to electrical equipment by offering dependable overcurrent and short-circuit protection. Strong fault currents can be safely interrupted thanks to its high breaking capacity.