What does this miniature circuit breaker do?
This device is designed to protect electrical circuits against overloads and short circuits. It combines delayed thermal tripping for overload protection with electromechanical tripping for short-circuit protection, making it suitable for general circuit protection duties.
How many poles does this breaker have?
It is a 2-pole miniature circuit breaker, so it can switch and protect two conductors together within the same device.
What is the rated current of this unit?
The rated current is 10 A. In the ABB range, this model is identified as S202M-C10, with order code 2CDS272001R0104.
What tripping characteristic does it use?
This breaker has a C characteristic trip curve. C-curve devices are commonly chosen for circuits where moderate inrush currents may occur, offering a balance between nuisance tripping resistance and circuit protection.
What is the rated voltage for this breaker?
The rated operational voltage is 400 V AC according to IEC/EN 60898-1 and 440 V AC according to IEC/EN 60947-2. The rated insulation voltage is 440 V, and the device is also listed with operational values down to 12 V AC and 12 V DC.
What breaking capacity does this model offer?
This unit offers a rated short-circuit capacity of 10 kA at 400 V AC. The datasheet also states a rated ultimate short-circuit breaking capacity of 25 kA at 230 V AC and 15 kA at 440 V AC.
How is the breaker mounted?
It is designed for DIN rail mounting and is suitable for TH35-7.5 and TH35-15 mounting rails in accordance with IEC 60715. The mounting position is specified as any.
What type of terminals does it use?
The breaker uses screw terminals with a failsafe bi-directional cylinder-lift terminal design. The recommended screwdriver type is Pozidriv 2, and the tightening torque is 2.8 N·m.
What conductor sizes can be connected?
The connecting capacity is 0.75 to 35 mm² for rigid and stranded conductors, and 0.75 to 25 mm² for flexible conductors, including flexible conductors with ferrules.
What are the physical dimensions of the unit?
The product dimensions are 35 mm wide, 69 mm deep and 88 mm high. The net weight is approximately 0.25 kg.
Is there a visual position indicator on the front?
Yes. The actuator includes a clear contact position indication with red for ON and green for OFF, which helps with quick visual status checks at the panel.
What enclosure protection level does it offer?
The breaker has a degree of protection of IP20 as a standalone device. When installed in an enclosure with a cover, the protection level is stated as IP40.
What temperature range is it designed for?
The stated ambient operating temperature range is -25 to +55 °C. For storage, the range is -40 to +70 °C.
Which standards does this breaker comply with?
It is listed as complying with IEC/EN 60898-1 and IEC/EN 60947-2, making it suitable for use across residential, commercial and industrial installations where those standards apply.
Can accessories be fitted to this breaker?
Yes. The S200M range can be used with a selection of compatible accessories, including auxiliary contacts, signal or auxiliary contact modules, shunt trips, undervoltage releases, motor operating devices, mechanical tripping devices and plug-in bases.