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header-product ABB S203-B16 Miniature Circuit Breaker, 3-Pole, 16A, 230/400V
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AiO.lv Networking Equipment Network Accessories Power Sockets ABB

ABB S203-B16 Miniature Circuit Breaker, 3-Pole, 16A, 230/400V

ABB S203-B16 Miniature Circuit Breaker Photo 1
ABB S203-B16 Miniature Circuit Breaker Photo 1
ABB S203-B16 Miniature Circuit Breaker, 3-Pole, 16A, 230/400V
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Short description

The ABB S203-B16 is a high-quality 3-pole miniature circuit breaker designed for reliable electrical circuit protection. It features a rated current of 16A and operates at a voltage of 230/400V with a frequency of 50/60 Hz. This device is engineered for industrial and residential electrical installations to prevent overcurrent and short-circuit damage, ensuring safety and operational stability in various power distribution systems.
Warranty: 2 Years
SKU: 1512064
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Product information

Description

The ABB S203-B16 is a professional-grade 3-pole miniature circuit breaker engineered to provide robust protection for electrical circuits. Designed for both residential and industrial environments, this device effectively safeguards systems against overcurrent and short-circuit damage. It utilizes a dual-tripping mechanism, combining thermal protection for overloads and electromechanical protection for short circuits, ensuring consistent operational stability and safety in power distribution networks.

Advantages

This circuit breaker stands out for its high reliability and current-limiting capabilities, which help minimize the impact of electrical faults on downstream equipment. Its compact design allows for efficient use of space within distribution boards, and the ability to mount bottom-fitting auxiliary contacts further optimizes installation space by up to 50 percent. The device is built to meet rigorous international standards, ensuring long-term durability and performance in diverse electrical applications.

Suitable for

  • Residential electrical installations
  • Commercial power distribution systems
  • Industrial machinery and equipment protection
  • General electrical circuit safety management

When it may not be suitable

This device is not intended for use in DC circuits unless specifically rated for such applications, as it is designed for AC power distribution. It may also not be suitable for systems requiring higher breaking capacities than those specified for this model.

Key specifications

  • Number of poles: 3
  • Rated current: 16A
  • Rated voltage: 230/400V AC
  • Tripping characteristic: B
  • Frequency: 50/60 Hz
  • Weight: 0.375 kg
  • Compliance: IEC/EN 60898-1, IEC/EN 60947-2, UL1077, CSA 22.2 No. 235

How to use

The ABB S203-B16 should be installed by a qualified electrician into a standard DIN-rail distribution board. Ensure that the power supply is disconnected before beginning the installation. The device is snapped onto the rail, and the input and output cables are securely connected to the terminals. Once installed, the breaker can be switched on to energize the circuit. Regular visual inspections are recommended to ensure the terminals remain tight and the device is free from physical damage.

What to consider before purchase

  • Verify that the 16A rated current matches your circuit requirements.
  • Ensure the 3-pole configuration is appropriate for your specific electrical load.
  • Check that the available space in your distribution board accommodates the dimensions of the unit.
  • Confirm compatibility with existing DIN-rail mounting systems.

Usage recommendations

Always ensure that the total load on the circuit does not exceed the 16A rating to prevent nuisance tripping. If the breaker trips, investigate the cause of the overload or short circuit before resetting the switch.

Specifications

Weight:
0.375 kg
All features
Storage temperature (T-T):
-40 - 70
Power requirements:
50/60 Hz

Power

Input voltage:
230/400
Rated current:
16 A

Weight & dimensions

Weight:
0.375 kg
Height:
88 mm
Width:
52.5 mm
Depth:
69 mm

Features

Operating temperature (T-T):
-25 - 55
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Customer questions

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What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All ABB products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized ABB service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
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