ABB S203-C16 Miniature Circuit Breaker 3P C-Curve 16A S200 Series

Swiss ABB S203-C16 miniature circuit breaker, part of the System pro M compact S200 series, 3-pole (3P) design, C tripping characteristic, rated current 16A, rated breaking capacity 6kA (230/400V AC), rated voltage 230/400V AC, frequency 50/60Hz, thermal-magnetic trip, providing both overload protection and short-circuit protection, current limiting design, IEC/EN 60898-1 compliant, 35mm standard DIN rail mounting, modular design, wiring capacity 35mm², mechanical life 20000 operations, protecti

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Product Details

I. Product Overview

The ABB S203-C16 is a System pro M compact S200 series miniature circuit breaker (MCB) manufactured by Swiss ABB, with 3-pole (3P) design, C tripping characteristic, rated current 16A, and rated breaking capacity 6kA. This miniature circuit breaker adopts a current limiting design, featuring two different tripping mechanisms - a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short-circuit protection, providing reliable overload and short-circuit protection for electrical circuits and equipment.

The S200 series is ABB's classic modular DIN rail mounted miniature circuit breaker series, offering multiple tripping characteristics (B, C, D, K, Z), multiple pole configurations (1P, 1P+N, 2P, 3P, 3P+N, 4P), breaking capacities up to 6kA (230/400V AC), and rated currents up to 63A. The S200 series complies with IEC/EN 60898-1 and IEC/EN 60947-2 standards, has passed multiple international certifications, and is widely used in industrial distribution, commercial buildings, residential electrical, control cabinets and other fields.

The S203-C16 is the 3-pole version, suitable for three-phase circuits or three independent single-phase circuit protection. The 16A rated current is suitable for medium-power distribution circuits, such as lighting circuits, socket circuits, small motors, HVAC equipment, pumps and other loads for overload and short-circuit protection. The C tripping characteristic is suitable for inductive loads and general distribution circuits, with an instantaneous tripping range of 5-10 times the rated current, capable of withstanding a certain degree of starting inrush current, while providing reliable overload and short-circuit protection. The product adopts thermal-magnetic tripping principle: thermal trip for overload protection (bimetallic strip) and magnetic trip for short-circuit protection (electromagnetic coil), with stable and reliable tripping characteristics. The product has a rated voltage of 230/400V AC (230V for 1P, 400V for multi-pole), rated insulation voltage 440V, rated impulse withstand voltage 4kV, frequency 50/60Hz. It adopts 35mm standard DIN rail mounting with modular design, and the S203-C16 occupies 3 modules (52.5mm). The wiring capacity is suitable for conductors up to 35mm², mechanical life 20000 operations, operating temperature -25~+55°C, protection class IP20 (IP40 with cover).

II. Specifications

表格

Parameter	Value
Brand	ABB
Series	System pro M compact S200
Model	S203-C16
Product Type	Miniature Circuit Breaker (MCB)
Number of Poles	3P
Rated Current (In)	16 A
Tripping Characteristic	C (instantaneous trip range 5~10×In)
Trip Unit Type	Thermal-magnetic
Rated Operating Voltage (Ue)	230/400 V AC
Rated Insulation Voltage (Ui)	440 V
Rated Impulse Withstand Voltage (Uimp)	4 kV
Rated Frequency	50/60 Hz
Rated Breaking Capacity (Icn)	6 kA (230/400 V AC)
Rated Ultimate Short-Circuit Breaking Capacity (Icu)	6 kA (230/400 V AC)
Rated Service Short-Circuit Breaking Capacity (Ics)	6 kA (230/400 V AC)
Utilization Category	Category A (per IEC/EN 60898-1)
Mounting	35mm standard DIN rail
Module Width	3 modules (52.5mm)
Wiring Capacity	Max. 35 mm²
Terminal Type	Double terminal/cage terminal (contact via email for confirmation)
Mechanical Life	20000 operations
Electrical Life	Contact via email for confirmation (over 10000 operations)
Operating Temperature	-25 to +55 °C
Storage Temperature	-40 to +70 °C
Reference Ambient Temperature	30 °C
Degree of Protection	IP20 (IP40 with cover)
Pollution Degree	3
Applicable Standards	IEC/EN 60898-1, IEC/EN 60947-2
Approvals	CE, CCC, EAC, etc. (contact via email for confirmation)
Dimensions	Standard 3-pole modular size (contact via email for confirmation)
Weight	Contact via email for confirmation
Country of Origin	Contact via email for confirmation (China/Switzerland/India, etc.)

III. Product Features

ABB quality, System pro M compact S200 series classic miniature circuit breaker, reliable performance
3-pole (3P) design, suitable for three-phase circuits or three independent single-phase circuit protection
16A rated current, suitable for medium-power distribution circuits
C tripping characteristic, instantaneous trip range 5~10×In, balancing starting inrush current and protection reliability
Thermal-magnetic trip mechanism, thermal trip for overload protection + magnetic trip for short-circuit protection, dual protection reliable
Current limiting design, fast interruption of short-circuit current, effectively limiting fault energy
Rated breaking capacity 6kA (230/400V AC), meeting general industrial and civil distribution requirements
Rated voltage 230/400V AC, rated insulation voltage 440V, rated impulse withstand voltage 4kV
IEC/EN 60898-1 and IEC/EN 60947-2 compliant, multiple international certifications
35mm standard DIN rail mounting, modular design, easy installation
3 module width (52.5mm), standard modular layout
Wiring capacity up to 35mm², suitable for common conductor specifications
Mechanical life 20000 operations, durable
Operating temperature -25~+55°C, wide temperature adaptation
Protection class IP20 (IP40 with cover), safe and reliable
Environmentally friendly, RoHS compliant
Widely used in industrial distribution, commercial buildings, residential electrical, control cabinets and other fields

IV. Typical Applications

Overload and short-circuit protection in industrial distribution systems
Electrical circuit protection in commercial buildings and office buildings
Circuit protection in residential electrical distribution boards
Power circuit protection in control cabinets and control panels
Protection of lighting systems and socket circuits
Line protection for small motors, pumps, fans and other equipment
Distribution protection for HVAC equipment
Distribution protection for automated production lines and machinery
Distribution protection for commercial premises (shops, restaurants, supermarkets)
Protection for temporary power and construction distribution

V. Model Description

S203-C16 is the complete model number for the ABB S200 series miniature circuit breaker. Where:

S: System pro M series
2: S200 series
0: Breaking capacity code (standard 6kA type)
3: Number of poles (3-pole/3P)
C: Tripping characteristic (C)
16: Rated current (16A)

The ABB S200 series miniature circuit breaker model coding rules are as follows:

Series: S200 (6kA standard), S200M (10kA high breaking capacity), S200P (25kA ultra-high breaking capacity), S200U (UL standard), S200 series UC (DC type), etc.
Number of poles: 1=1P, 2=2P, 3=3P, 4=4P (also 1P+N, 3P+N, etc.)
Tripping characteristic: B (3~5×In), C (5~10×In), D (10~14×In), K, Z, etc.
Rated current: 2A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, etc.
Accessories: auxiliary contacts (S2C-H...), alarm contacts, shunt trip, undervoltage trip, busbar, etc. optional

The S203-C16 is a 3-pole, C characteristic, 16A rated current standard 6kA breaking capacity miniature circuit breaker. To confirm the detailed configuration of this model (terminal type, dimensions, weight, certification details, accessory compatibility, etc.), please contact via email for confirmation. We will provide detailed technical documentation and selection support.

VI. Why Choose Us

Professional channel supply, comprehensive model coverage across multiple brands of industrial spare parts
Strict quality inspection process ensuring reliable product quality
Professional engineering team providing technical support and selection consultation
Quick response, efficient logistics, orders accepted
Quality assurance, worry-free after-sales service

VII. FAQ

Q1: What loads is a 16A rated current circuit breaker suitable for?

A: A 16A rated current miniature circuit breaker is suitable for distribution circuits with rated current not exceeding 16A, corresponding to approximately 3.7kW for single-phase (230V) and 11kW for three-phase (400V) load power. Typical applications include: lighting circuits, general socket circuits (multiple sockets in parallel), small motors (1-5kW), pumps, fans, HVAC equipment, commercial premises distribution circuits, etc. In actual selection, the load type, starting current, line length and prospective short-circuit current should be comprehensively considered, and it is recommended that selection be performed by professional electrical engineers.

Q2: What does C tripping characteristic mean?

A: The C characteristic is a classification of the instantaneous tripping characteristic of miniature circuit breakers, indicating that the instantaneous trip range is 5-10 times the rated current (5~10×In). That is, when a short-circuit current of 5-10 times the rated current (80~160A) appears in the circuit, the S203-C16 trips instantly to interrupt the circuit. The C characteristic is suitable for general distribution circuits and inductive loads (such as motors, transformers, fluorescent lamps, etc.), capable of withstanding a certain degree of starting inrush current while providing reliable overload and short-circuit protection. By comparison, the B characteristic (3~5×In) is suitable for purely resistive loads and lighting circuits, and the D characteristic (10~14×In) is suitable for high inrush current loads.

Q3: What is the difference between S203-C16 and S203-C2?

A: Both S203-C16 and S203-C2 are S200 series 3-pole C characteristic miniature circuit breakers with identical parameters, differing only in rated current: S203-C16 is 16A, S203-C2 is 2A. Both feature 6kA breaking capacity, 230/400V AC rated voltage, thermal-magnetic trip, DIN rail mounting and other identical characteristics. The rated current is determined based on the circuit load current during selection: 2A for signal/control circuits with smaller load currents, and 16A for medium-power distribution circuits. The rated current of the circuit breaker should be greater than or equal to the circuit calculated current and less than the conductor ampacity.

Q4: Can you provide mounting dimensions and accessory compatibility information for this model?

A: Yes. Please contact via email with your requirements, including installation environment, conductor specifications, whether accessories are needed (auxiliary contacts, alarm contacts, shunt trip, undervoltage trip, busbar, etc.), and we will provide corresponding outline dimension drawings, installation guides, accessory selection recommendations and technical support. The S200 series supports various accessories to meet different application requirements.

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