Description

Product Overview

The ABB S2B is a high-performance molded case circuit breaker(MCCB)from the SACE Isomax S series,designed to deliver reliable overcurrent and short-circuit protection in low-voltage industrial automation systems.Engineered for applications requiring robust electrical safety,the ABB S2B supports rated uninterrupted currents(Iu)up to 160A and breaking capacities ranging from 10 to 200 kA at 380-415V,ensuring dependable performance in demanding environments.As part of ABB’s legacy Isomax S family,this breaker is optimized for both AC and DC distribution,making it a versatile solution for industrial plants,commercial buildings,and infrastructure systems where safety and uptime are critical.

The ABB S2B excels in delivering precise protection through thermomagnetic or magnetic-only releases,enabling tailored responses to fault conditions.Its compact design supports fixed,plug-in,and withdrawable configurations,offering flexibility for diverse installation needs.By preventing electrical faults from escalating,the S2B minimizes equipment damage and downtime,enhancing operational efficiency.Certified to UL 489 and CSA C22.2 standards,this breaker combines durability with ease of integration,positioning it as a trusted choice for safeguarding electrical systems while optimizing space and maintenance efforts in automation applications.

Technical Specifications

Product Model|S2B

Manufacturer|ABB

Product Type|Molded Case Circuit Breaker

Rated Current(Iu)|Up to 160 A

Breaking Capacity(Icu)|10-200 kA at 380-415V AC

Rated Voltage|240 VAC/500 VDC

Trip Unit|Thermomagnetic or magnetic-only

Configuration|Fixed,plug-in,withdrawable

Operating Temperature|-25°C to+70°C

Physical Dimensions|90 mm x 130 mm x 70 mm

Weight|0.8 kg

Protective Rating|IP20

Mounting Type|DIN rail or panel mount

Main Features and Advantages

The ABB S2B offers robust protection with its high breaking capacity,ranging from 10 to 200 kA,ensuring reliable fault interruption in high-power systems.Its thermomagnetic or magnetic-only trip units provide precise overcurrent protection,with adjustable settings for customized fault response,reducing false trips and enhancing system reliability.

Compact and flexible design:Measuring just 90 x 130 x 70 mm,the S2B optimizes space in control panels while supporting fixed,plug-in,and withdrawable configurations.This versatility simplifies retrofitting and upgrades,cutting installation time by up to 25%.Its compatibility with ABB’s retrofit kits ensures seamless replacement of legacy breakers like the SACE Isomax S series.

Enhanced safety and durability:Certified to UL 489 and CSA C22.2,the S2B features robust insulation and arc suppression,minimizing risks in harsh environments like chemical plants.Its IP20 rating and-25°C to+70°C operating range ensure consistent performance under extreme conditions.The breaker’s low maintenance design,with a Mean Time Between Failures(MTBF)exceeding 50,000 hours,reduces operational costs while maintaining long-term reliability,making the S2B a cost-effective solution for industrial automation.

Application Field

In manufacturing,the ABB S2B protects motors and conveyor systems,preventing overloads and short circuits that could disrupt production lines.Its high breaking capacity ensures rapid fault isolation,minimizing downtime in automotive or textile plants.

In power distribution,the S2B safeguards switchboards and transformers in commercial buildings,addressing risks like electrical surges to maintain uninterrupted power supply.Its compact design is ideal for space-constrained panels,enhancing system efficiency.

The chemical and petrochemical industries rely on the ABB S2B to protect critical equipment like pumps and reactors,where its robust insulation prevents faults in hazardous environments,ensuring compliance with safety regulations.In infrastructure projects,such as data centers,the S2B supports reliable power distribution,mitigating risks of equipment failure and ensuring continuous operation.Its versatility across AC and DC applications makes it a go-to solution for diverse electrical protection needs.

Related Products

SACE S2N:Similar MCCB with enhanced breaking capacity,complements S2B for higher-demand applications.

SACE S3B:Higher-rated breaker,extends S2B functionality for larger systems up to 200A.

SACE Tmax T2N:Modern replacement for S2B,offering advanced trip units for upgraded systems.

SACE XT4:Direct retrofit for S2B,provides enhanced protection for plug-in configurations.

SACE FORMULA A1:Compact MCCB,pairs with S2B for smaller-scale applications.

PR211/P:Microprocessor-based release,enhances S2B with digital protection features.

SACE Isomax S1:Lower-capacity breaker,supports S2B in mixed-protection setups.

Installation and Maintenance

Pre-installation preparation:Before installing the ABB S2B,ensure the power supply is disconnected and the panel is grounded to prevent electrical hazards.Verify the system’s voltage(240 VAC/500 VDC)and current ratings align with the S2B specifications.Select the appropriate configuration(fixed,plug-in,or withdrawable)and use compatible mounting accessories,such as DIN rails or panel brackets.Connect cables(0.5-35 mm²)according to ABB’s wiring guidelines,ensuring proper torque for secure connections.

Maintenance recommendations:Regular maintenance of the ABB S2B involves quarterly inspections for dust or corrosion,using a dry cloth for cleaning.Test trip functionality annually with a circuit breaker tester to confirm performance.Check terminal connections for tightness and monitor for signs of overheating.Store spare S2B units in a dry,dust-free environment to ensure readiness for replacements.Schedule maintenance during planned outages to maintain system uptime,leveraging the breaker’s durable design for minimal upkeep.

Product Guarantee

Our company stands firmly behind the ABB S2B,ensuring exceptional quality through rigorous factory testing to eliminate defects.We offer comprehensive after-sales support,including 24/7 technical assistance and detailed guidance for integration and troubleshooting.A robust warranty covers materials and workmanship,guaranteeing the S2B’s reliable performance in critical applications.Our tailored training programs empower your team to optimize the S2B’s installation and maintenance,ensuring seamless operation.Partner with us for confidence in your electrical protection systems,delivering unmatched reliability and efficiency to drive your operational success.

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