S203M-B16 OVR

Name: S203M-B16 OVR
Brand: ABB
SKU: S203M-B16 OVR

The ABB S203M-B16 is a 3-pole, 16A miniature circuit breaker designed for DIN rail mounting. It offers a 10kA short circuit breaking capacity and IP20 protection, making it suitable for various electrical applications.

Product ModelS203M-B16 OVR

Material Number2CDS273023N0165

Product ID78704

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Short Circuit Breaking CapacityThe ABB S203M-B16 boasts a robust 10kA short circuit breaking capacity, ensuring reliable protection against high current surges.
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2. Durable and ReliableDesigned to withstand 20,000 electrical cycles, this MCB provides long-lasting performance in demanding environments.
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3. Versatile Mounting OptionsEasy to install on DIN rail mounting systems, the S203M-B16 offers flexibility in terms of mounting options, making it suitable for various electrical setups.
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4. Comprehensive ProtectionEquipped with both thermal and electromechanical tripping mechanisms, this MCB offers comprehensive protection against overload and short circuits.
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Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Tripping Characteristic

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

Rated Current (In)

16 A

5. Compliance with International StandardsThe S203M-B16 complies with IEC/EN 60898-1 and IEC/EN 60947-2 standards, ensuring it meets the highest safety and performance criteria for residential, commercial, and industrial applications.

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

Number of Protected Poles

Number of Poles

Overvoltage Category

III

Accessories Available

Yes

Connecting Capacity

Flexible with Ferrule 0.75 ... 25 mmÂ² Flexible 0.75 ... 25 mmÂ² Flexible 0.75 ... 25 mmÂ² Rigid 0.75 ... 35 mmÂ² Rigid 0.75 ... 35 mmÂ² Stranded 0.75 ... 35 mmÂ²

Ambient Air Temperature

Operation -25 ... +55 Â°C

Degree of Protection

IP20 IP40

Pollution Degree

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