S203M-B16 OVR

Product ID:78256
Updated: 2026/4/5
ABB S203M-B16 OVR

Key Features

  • 1Provide reliable dual protection against overloads and short circuits. 2、Handle electrical currents efficiently with a 16A rating. 3、Ensure durability by complying with IEC/EN standards. 4、Simplify installation with versatile DIN rail mounting. 5、Maintain safety with a high 10kA short circuit capacity.
Product Details
S203M-B16 OVR
ABB

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Tripping Characteristic
B
Rated Operational Voltage
acc. to IEC 60898-1 400 V acc. to IEC 60947-2 440 V AC
Rated Insulation Voltage (Ui)
acc. to IEC/EN 60664-1 440 V
Rated Impulse Withstand Voltage (Uimp)
4 kV at 2000 m 5 kV at Sea Level 6.2 kV
Input Voltage Type
AC
Rated Current (In)
16 A
Rated Short-Circuit Capacity
(230 V AC) 10 kA (400 V AC) 10 kA (400 V) 10 kA
Rated Ultimate Short-Circuit Breaking Capacity (Icu)
(230 V) 25 kA (400 V) 25 kA
Rated Conditional Short-Circuit Current (Inc)
(230 V) 15 kA (400 V) 15 kA
Rated Service Short-Circuit Breaking Capacity (Ics)
(230 V AC) 7.5 kA
Rated Frequency (f)
50 / 60 Hz
Power Loss
at Rated Operating Conditions per Pole 2.5 W
Energy Limiting Class
3
Number of Protected Poles
3
Number of Poles
3
Overvoltage Category
III
Accessories Available
Yes
Connecting Capacity
Flexible with Ferrule 0.75 ... 25 mm² Flexible 0.75 ... 25 mm² Flexible 0.75 ... 25 mm² Rigid 0.75 ... 35 mm² Rigid 0.75 ... 35 mm² Stranded 0.75 ... 35 mm²
Ambient Air Temperature
Operation -25 ... +55 °C
Degree of Protection
IP20 IP40
Pollution Degree
3
Width in Number of Modular Spacings
3.0
Product Net Width
52.5 mm
Product Net Height
85 mm
Product Net Depth / Length
69 mm
Product Net Weight
0.345 kg
Pole Net Weight
0.125 kg
Built-In Depth (t2)
69 mm
Dimension Diagram
2CDC022007F0010
ETIM 8
EC000042 - Miniature circuit breaker (MCB)
ETIM 9
EC000042 - Miniature circuit breaker (MCB)
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
WEEE B2C / B2B
Business To Business
CN8
8536 20 10
UNSPSC
39121603
eClass
V11.0 : 27141901
IDEA Granular Category Code (IGCC)
4897 >> Miniature circuit breakers
Manufacturer ID
2CDS273023N0165

Specifications may be subject to change without notice