PRODUCTS

MOULDED CASE CIRCUIT BREAKERS (MCCB)

IPD offers ABB’s motorised Moulded Case Circuit Breakers (MCCB). Trends such as energy efficiency, connectivity and smart grids are satisfied with high quality, accuracy and reliability with SACE ABB circuit breakers. Moulded case circuit breakers (MCCB) are used to protect electrical power systems from overload, short circuit, instantaneous over current and earth fault. It is an enhanced version of a MCB and unlike MCBs, moulded case circuit breakers (MCCB) can be tailored with additional features such as remote operation and undervoltage or shunt tripping units along with adjustable time and current settings.

The whole range of ABB’s SACE Tmax circuit breaker and Isomax power circuit breakers has obtained Industrial certification and is fully entitled to join the protect suite of products. These circuit breakers combine with about 700 products in the ranges of distribution boards, thus enabling complete switchboards to be assembled using all Industrial certified components. IPD offers ABB’s SACE Tmax XT, SACE Tmax T and Isomax MCCBs.

ABB SACE TMAX MCCBS

The SACE Tmax XT range offers higher performance, better protection, and more precise metering than equivalent units, and can handle up to 1600A. SACE Tmax XT MCCBs come in eight models (XT1, XT2, XT3, XT4, XT5, XT6, XT7 & XT7M), while SACE Tmax T MCCBs rate up to 800A and are available in T4 and T6 models. Using the embedded smart power controller can help reduce energy consumption by up to 20 percent. Easier monitoring of resources is attainable due to the SACE Tmax XT family’s built-in connectivity that links smartphones, tablets and PCs to data analysis tools on the ABB Ability™ cloud platform in real time. Several communication protocols enable remote communication.

The power distribution and generator protection application trip units are available in both 3 and 4 pole versions. Thermomagnetic and electronic trip units are available for use in AC/DC or in AC only. With the XT2, XT4, XT5, XT6, XT7and XT7 M versions it is possible to interchange trip units keeping the same breaking part, so that installation can be upgraded with fewer costs. Upgradability of Ekip Touch and Hi-Touch trip units can always be performed with new functions via ABB Ability Marketplace™. A complete range of electronic trip units for moulded case circuit breakers (MCCB) is suitable for different levels of protection, even enhancing selectivity values with early fault detection and prevention algorithm.

The SACE Tmax T range are the moulded case circuit breakers with the best performance/size ratio in the market. SACE Tmax PV moulded case circuit breakers range cover capacities up to 690 V AC and 750 V DC with rated operating current ranging from 200A to 1600A, for photovoltaic systems where use of string inverters is prevalent. Switch disconnectors are available in frame sizes ranging from XT1D-XT7D with rated operating current ranging from 160A to 1600A.

Browse our range of ABB moulded case circuit breakers (MCCB). If you would like to find out more information about our SACE Tmax MCCBs, get in touch with us on 1300 556 601 today.

Frequently Asked Questions

Yes. All ABB power circuit breakers and molded case circuit breakers are suitable for reverse feeding. 

Yes. As long as there is no electrical trip signal to the breaker, it can be mechanically charged and closed locally. This assumes that the reason for requiring to use this procedure is loss of control power. A circuit breaker that has opened under a fault condition should not be re-closed until the operator has ensured that the fault has been cleared. 

MCCBs are downstream protective devices, and hence are expected to sense & clear circuit faults instantaneously without any delay. Due to this reason, MCCBs do not need to have any short time withstand rating. However, ABB’s MCCBs of ratings are available with suitable short time withstand rating. 

Yes, Moulded Case Circuit Breakers (MCCBs) with thermal-magnetic releases are suitable for DC application. The thermal rating in these MCCBs remain unchanged. However, MCCBs with static or microprocessor-based release are not suitable for DC applications and can only be used in AC networks. 

Standard Moulded Case Circuit Breakers (MCCB) offer overload and short circuit protection to an installation. However, accessories are available to enable an MCCB to offer earth fault, earth leakage and undervoltage protection as well. Moulded Case Circuit Breakers (MCCB) can be tailored with additional features such as remote operation and undervoltage or shunt tripping unit along with adjustable time and current settings. 

Selection criteria: 

  • Identify the rated voltage (V) & rated current (A) 
  • Identify number of poles 
  • Choose the type of frame 
  • Identify the breaking capacity (kA) 
  • Select the type of trip unit 
  • Discrimination based on installation specifics 

With the XT2, XT4, XT5, XT6, XT7and XT7 M versions it is possible to interchange trip units keeping the same breaking part, so that installation can be upgraded with fewer costs. Upgradability of Ekip Touch and Hi-Touch trip units can always be performed with new functions via ABB Ability Marketplace™. A complete range of electronic trip units is suitable for different levels of protection, even enhancing selectivity values with early fault detection and prevention algorithm. 

Easier monitoring of resources is attainable due to the SACE Tmax XT family’s built-in connectivity that links smartphones, tablets and PCs to data analysis tools on the ABB Ability™ cloud platform in real time. Several communication protocols enable remote communication. 

Tmax XT Moulded Case Circuit Breakers (MCCBs) have a wide range of trip units catering to specified applications, namely power distribution, motor protection and generator protection. All of these applications provide options of magnetic and static trip units to choose from. 

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