C25H3MA220

What type of component is this?

The C25H3MA220 is a fixed, molded-case circuit breaker from the Schneider ComPacT NSX new generation range. It is designed primarily for motor circuit protection in AC electrical installations.

What is the rated current?

The circuit breaker has a rated current of 220 A at an ambient temperature of 65°C.

How many poles does the circuit breaker have?

It has a three-pole configuration with all three poles protected, identified as 3P and 3D.

What type of trip unit is fitted?

It uses an MA magnetic trip unit that provides short-circuit protection. It does not provide integrated thermal overload or earth-leakage protection.

Is the magnetic trip threshold adjustable?

Yes. The short-time and instantaneous protection pickup can be adjusted from 9 to 14 times the rated current, with nine instantaneous adjustment settings.

What operational voltage does it support?

The breaker is rated for operation at up to 690 V AC on 50 or 60 Hz networks.

What is its breaking capacity at 415 V AC?

Its rated ultimate short-circuit breaking capacity is 70 kA at 380/415 V AC in accordance with IEC 60947-2.

Does the breaking capacity change with voltage?

Yes. The rated ultimate breaking capacity is 100 kA at 220/240 V AC, 70 kA at 380/415 V AC, 65 kA at 440 V AC, 50 kA at 500 V AC, 35 kA at 525 V AC, and 10 kA at 660/690 V AC.

Is it suitable for electrical isolation?

Yes. The device is suitable for isolation in accordance with EN/IEC 60947-2.

How is the circuit breaker mounted?

It is a fixed circuit breaker designed for backplate mounting. It can be installed horizontally, vertically, or flat on its back, subject to the installation requirements of the electrical assembly.

What are the physical dimensions?

The unit measures approximately 105 mm wide, 161 mm high, and 86 mm deep. Its listed net weight is 2.4 kg.

What environmental protection ratings does it have?

The circuit breaker has an IP40 ingress protection rating in accordance with IEC 60529 and an IK07 impact protection rating in accordance with IEC 62262.

What ambient temperatures can it operate in?

The specified operating temperature range is -25°C to 70°C. The storage temperature range is -50°C to 85°C, and the permitted relative humidity range is 0% to 95%.

Can it be used at high altitude?

It can operate at altitudes up to 2,000 meters without derating. Applications between 2,000 and 5,000 meters require appropriate derating.

What are its insulation and impulse ratings?

The rated insulation voltage is 800 V AC, and the rated impulse withstand voltage is 8 kV.

How durable is the switching mechanism?

The specified mechanical durability is 20,000 operating cycles. Electrical endurance varies with voltage and load, including 10,000 cycles at 440 V at rated current and 5,000 cycles at 690 V at rated current.

How much power does it dissipate?

The listed power dissipation is 14.52 W per pole under the specified operating conditions.

Which standards and certifications apply?

The circuit breaker is designed to EN/IEC 60947 requirements and carries certifications including CCC, Marine, and EAC.

How many auxiliary slots are provided?

The device includes five slots for compatible electrical auxiliaries.

Is this breaker intended to provide motor overload protection by itself?

No. Its magnetic trip unit is intended for short-circuit protection. A coordinated motor starter arrangement normally requires a separate overload protection device selected for the motor and application.