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Miniature Circuit Breakers (MCBs)
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2CDS271327R0527
ABB 2CDS271327R0527 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections. It has a rated current of 30A and complies with UL489 design standards. This MCB features a 1-pole (1P) configuration and is suitable for DIN rail mounting. The rated impulse voltage (Uimp) is 17.5 mm, and the rated insulation voltage (Ui) is 69 mm. It supports a control voltage for AC operations and is rated for 6000 operations. The rated voltage (AC) for phase-to-phase connections is 230 V.
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2CDS271327R0517
ABB 2CDS271327R0517 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections. It has a rated current of 25A and complies with UL489 design standards. This MCB features a 1-pole (1P) configuration and is suitable for DIN rail mounting. The rated impulse voltage (Uimp) is 17.5 mm, and the rated insulation voltage (Ui) is 69 mm. It supports a control voltage for AC operations and has a supply voltage durability of 6000 operations. The rated voltage (AC) for phase-to-phase connections is 230 V.
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2CDS271327R0487
ABB 2CDS271327R0487 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections. It has a rated current of 20A and complies with UL489 design standards. This MCB features a 1-pole (1P) configuration with a net width of 69 mm, suitable for DIN rail mounting. It is designed for a rated insulation voltage (Ui) of 230 V and has a rated impulse voltage (Uimp) of 17.5 mm. The control voltage operates on AC, and it is built to withstand up to 6000 operations.
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2CDS271327R0467
ABB 2CDS271327R0467 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections. It has a rated current of 16A and complies with UL489 design standards. This MCB features a 1-pole (1P) configuration and is suitable for DIN rail mounting. It supports a control voltage for AC operations and has a rated insulation voltage (Ui) of 69 mm. The rated impulse voltage (Uimp) is 17.5 mm, and it is designed for a supply voltage of 6000 operations. The rated voltage (AC) for phase-to-phase connections is 230 V.
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2CDS271327R0447
ABB 2CDS271327R0447 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections and a rated current of 13A. It complies with UL489 design standards. This MCB features a 1-pole (1P) configuration and is suitable for DIN rail mounting. The rated impulse voltage (Uimp) is 17.5 mm, and the rated insulation voltage (Ui) is 69 mm. It supports a control voltage for AC operations and has a supply voltage durability of 6000 operations. The rated voltage (AC) for phase-to-phase connections is 230 V.
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2CDS271327R0377
ABB 2CDS271327R0377 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections and a rated current of 6A. It complies with UL489 design standards. This MCB features a 1-pole (1P) configuration and is suitable for DIN rail mounting. The rated impulse voltage (Uimp) is 17.5 mm, and the rated insulation voltage (Ui) is 69 mm. It supports a control voltage for AC operations and is designed for a supply voltage endurance of 6000 operations. The rated voltage (AC) for phase-to-phase connections is 230 V.
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2CDS271327R0257
ABB 2CDS271327R0257 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections and a rated current of 1.6A. It complies with UL489 standards, ensuring its suitability for various applications. This MCB features a 1-pole (1P) design and is intended for DIN rail mounting, facilitating easy installation. It has a rated impulse voltage (Uimp) of 17.5 mm and a rated insulation voltage (Ui) of 69 mm. The control voltage operates on AC, and it is engineered for up to 6000 operations. The rated voltage (AC) for phase-to-phase connections is specified at 230 V.
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2CDS271327R0117
ABB 2CDS271327R0117 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections. It has a rated current of 0.3A and complies with UL489 standards. The device features a 1-pole (1P) design suitable for DIN rail mounting. It is engineered for a rated insulation voltage (Ui) of 69 mm and a rated impulse voltage (Uimp) of 17.5 mm. The MCB operates with a control voltage for AC systems and supports a supply voltage for up to 6000 operations. It is specified for a rated voltage (AC) phase-to-phase of 230 V.
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2CDS271337R0337
ABB 2CDS271337R0337 is a Miniature Circuit Breaker (MCB) designed with failsafe bi-directional cylinder-lift connections. It features a rated current of 4A according to UL489 standards and operates at a rated voltage of 48Vdc with a control voltage of 277Vac. This MCB provides real contact positive indication with a green OFF/red ON status display. It has a rated impulse voltage (Uimp) of 4 kV and a short circuit breaking rating of 10kA at 277Vac, complying with UL 489. The net dimensions include a height of 157.5 mm and a width suitable for 1-pole (1P) configurations, with a rated insulation voltage (Ui) of 69 mm. It supports a DIN rail connection type and has an electrical durability of 20,000 operations according to IEC standards and 6,000 operations as per UL 489. The rated voltages for AC are 440 V phase-to-phase and 250 V phase-to-neutral, with a mechanical durability of 20,000 operations at no load. Power dissipation/losses are calculated at 1.8 W, and it features a K tripping curve. The component's technology is identified by the number 888614423084, and it has a UNSPSC code of 39121603.
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2CDS271337R0277
ABB 2CDS271337R0277 is a Miniature Circuit Breaker (MCB) designed with failsafe bi-directional cylinder-lift connections. It has a rated current of 2A according to UL489 standards and operates at a rated voltage of 48Vdc with a control voltage of 277Vac. This MCB features a real contact positive indication with green for OFF and red for ON statuses. It is suitable for DIN rail mounting and has a net height of 157.5 mm, a net width for a 1-pole (1P) configuration of 69 mm, and a communication protocol dimension of 111 mm. The component utilizes technology with a connection capacity of 10kA at 277Vac and a short circuit breaking rating compliant with UL 489. It has an electrical durability of 20,000 operations according to IEC standards and 6,000 operations as per UL 489, with a mechanical durability of 20,000 operations at no load. The rated impulse voltage (Uimp) is 4 kV, and the rated insulation voltage (Ui) is 888614423060. It supports a rated voltage (AC) of 440 V phase-to-phase and 250 V phase-to-neutral, with power dissipation/losses of 1.8 W and a K tripping curve. The UNSPSC code for this product is 39121603.
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2CDS271337R0084
ABB 2CDS271337R0084 is a Miniature Circuit Breaker (MCB) designed with failsafe bi-directional cylinder-lift connections. It features a real contact positive indication with green for OFF and red for ON status. This MCB has a rated current of 8A according to UL489 standards and operates at a rated voltage of 48Vdc with a control voltage of 277Vac. It supports a communication protocol with a net height of 4 kV and a rated impulse voltage (Uimp) of 157.5 mm. The net width is specified for a 1-pole (1P) configuration, and the rated insulation voltage (Ui) is 69 mm. It is designed for DIN rail mounting and has a connection capacity of 10kA at 277Vac, with a short circuit breaking rating compliant with UL 489. The UNSPSC code for this product is 39121603. It boasts an electrical durability of 20,000 operations according to IEC standards and 6,000 operations as per UL 489, with a mechanical durability of 20,000 operations at no load. The rated voltages for AC are 440V phase-to-phase and 250V phase-to-neutral. Power dissipation/losses are rated at 1.5 W, and it features a C tripping curve.
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2CDS271337R0064
ABB 2CDS271337R0064 is a Miniature Circuit Breaker (MCB) designed with failsafe bi-directional cylinder-lift connections. It features a real contact positive indication with a green OFF and red ON signal for clear status identification. This MCB is rated for a current of 6A under UL489 standards, with a DC rated voltage of 48Vdc and a control voltage of 277Vac. It supports a communication protocol with a net height of 4 kV and a rated impulse voltage (Uimp) of 157.5 mm. The net width is specified for a 1-pole (1P) configuration, with a rated insulation voltage (Ui) of 69 mm. It is designed for DIN rail mounting and utilizes technology with a connection capacity of 10kA at 277Vac, adhering to the short circuit breaking rating of UL 489. The UNSPSC code for this product is 39121603. It boasts an electrical durability of 20,000 operations according to IEC standards and 6,000 operations under UL 489, with a mechanical durability of 20,000 operations at no load. The power dissipation/losses are rated at 2 W, and it operates with a C tripping curve. The rated voltages for AC are 440 V phase-to-phase and 250 V phase-to-neutral.
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2CDS211001R0164
ABB 2CDS211001R0164 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections. It features a rated current of 16A and operates with a control voltage that accommodates DIN rail mounting. The MCB has a net height of 4 kV and a rated impulse voltage (Uimp) of 17.5 mm, indicating its robustness against voltage spikes. Its net width accommodates a 1-pole (1P) configuration, with a rated insulation voltage (Ui) of 69 mm. This part is engineered for a rated voltage (AC) phase-to-phase of 230 V and has a mechanical endurance of 20,000 operations. The breaker is characterized by a C-type tripping curve and can withstand temperatures up to 6 kA, ensuring its performance in various operating conditions.
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2CDS211001R0064
ABB 2CDS211001R0064 is a Miniature Circuit Breaker (MCB) designed for screw-clamp connections. It features a rated current of 6A and operates with a control voltage for DIN rail mounting. The device has a net height of 4 kV and a rated impulse voltage (Uimp) of 17.5 mm, indicating its robustness against voltage spikes. Its net width accommodates a 1-pole (1P) configuration, with a rated insulation voltage (Ui) of 69 mm. This MCB is specified for a rated voltage (AC) phase-to-phase of 230 V and has a mechanical endurance of 20,000 operations. The secondary current classification is C, and it can withstand a maximum temperature associated with a short-circuit breaking capacity of 6 kA.
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2CDS211001R0024
ABB 2CDS211001R0024 is a Miniature Circuit Breaker (MCB) designed for screw-clamp connections. It features a rated current of 2A and operates with a control voltage for DIN rail mounting. The MCB has a net height of 4 kV and a rated impulse voltage (Uimp) of 17.5 mm, indicating its robustness against voltage spikes. Its net width accommodates a 1-pole (1P) configuration, with a rated insulation voltage (Ui) of 69 mm. This part is specified for a rated voltage (AC) phase-to-phase of 230 V and is capable of 20,000 operations, showcasing its durability. The secondary current classification is C, and it can withstand a maximum temperature associated with a 6 kA fault level.
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2CCS881017R907
ABB 2CCS881017R907 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections and a rated current of 90A. It complies with UL489 design standards. This MCB features a 1-pole (1P) configuration and offers protection functions up to 690V. The rated insulation voltage (Ui) is specified at 82.5 mm, with a rated impulse voltage (Uimp) of 27 mm. It has a net height of 8 kV and a net width of 82.5 mm, indicating its compact size for DIN rail mounting. The control voltage operates on AC, and it is designed for up to 10,000 operations. The rated voltage (AC) for phase-to-phase connections is 240 V. This model also specifies 10,000 operations as its durability for analog outputs, with a secondary current designated as K.
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2CCS881017R905
ABB 2CCS881017R905 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections and a rated current of 90A. It complies with UL489 design standards. This MCB features a 1-pole (1P) configuration, with a net height of 8 kV and a rated impulse voltage (Uimp) of 27 mm. The net width is specified as 82.5 mm, indicating its compact size for DIN rail mounting. It offers protection functions up to 690 V and has a rated insulation voltage (Ui) of 82.5 mm. The control voltage operates on AC, and it is designed for 10,000 operations. The rated voltage (AC) for phase-to-phase connections is 240 V. This model also supports 10,000 operations as its analog output capacity, with a secondary current designated as Z.
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2CCS881017R805
ABB 2CCS881017R805 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections and a rated current of 80A. It complies with UL489 design standards. This MCB features a 1-pole (1P) configuration, with a net height of 8 kV, rated impulse voltage (Uimp) of 27 mm, and a net width of 82.5 mm. It is designed for DIN rail mounting and has a control voltage for AC operations. The supply voltage is rated for 10,000 operations, with a rated voltage (AC) phase-to-phase of 240 V. The device also supports 10,000 operations as its analog outputs and has a secondary current labeled as Z.
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2CCS881017R825
ABB 2CCS881017R825 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections and a rated current of 100A. It complies with UL489 design standards. This MCB features a 1-pole (1P) configuration, with a rated impulse voltage (Uimp) of 8 kV and a rated insulation voltage (Ui) of 690 V. The net dimensions include a height of 82.5 mm and a width of 27 mm, suitable for DIN rail mounting. It supports a control voltage (AC) and a supply voltage that allows for 10,000 operations. The rated voltage (AC) for phase-to-phase connections is 240 V.
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2CCS881017R707
ABB 2CCS881017R707 is a Miniature Circuit Breaker (MCB) designed with screw-clamp connections and a rated current of 70A. It complies with UL489 design standards. This MCB features a 1-pole (1P) configuration, with a rated impulse voltage (Uimp) of 8 kV and a rated insulation voltage (Ui) of 690 V. The net dimensions include a height of 82.5 mm and a width of 27 mm, suitable for DIN rail mounting. It supports a control voltage (AC) and a supply voltage that allows for 10,000 operations. The rated voltage (AC) for phase-to-phase connections is 240 V. This model also specifies a secondary current labeled as "K," indicating a specific characteristic of the breaker.
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Miniature Circuit Breakers (MCBs)
General Guide & Overview
Welcome to our comprehensive guide on miniature circuit breakers (MCBs). Whether you're an electrical professional or simply interested in understanding the inner workings of your home's electrical system, this article will provide you with all the information you need about MCBs.
MCBs are vital components of electrical systems, offering crucial protection against overloads and short circuits. Unlike traditional fuses, MCBs are automatic switches that respond to changes in current flow. This innovative technology not only enhances safety but also improves convenience for users.
In this guide, we will explore how MCBs work, the different types available, and the advantages they offer. So let's dive in and unlock the mysteries behind these essential electrical devices.
How Does a Miniature Circuit Breaker Work?
A miniature circuit breaker (MCB) is a vital component of an electrical system, designed to protect against overloads and short circuits. Understanding how an MCB works can help you ensure the safety and efficiency of your electrical installations.
MCBs operate by utilizing two types of tripping mechanisms: thermal tripping and magnetic tripping.
Thermal Tripping
Thermal tripping is the primary mechanism in MCBs. It detects and responds to excessive heat caused by an overload in the circuit. Inside the MCB, there is a bimetallic strip made of two different metals with different expansion coefficients. When the current passing through the MCB exceeds its rated capacity, the bimetallic strip heats up, causing the metals to expand at different rates. As a result, the strip bends and activates the trip mechanism, opening the contacts to interrupt the current flow.
Magnetic Tripping
Magnetic tripping is a secondary mechanism in MCBs. It provides rapid protection against short circuits by detecting strong current surges. Inside the MCB, there is an electromagnetic coil surrounding the current-carrying contacts. When a short circuit occurs, an extremely high current flows through the coil, generating a magnetic field that attracts the armature. The armature then trips the mechanism, opening the contacts and isolating the faulty circuit from the power supply.
The integration of both thermal and magnetic tripping mechanisms allows MCBs to provide reliable protection against a wide range of electrical faults. By quickly detecting and responding to abnormal current conditions, MCBs help prevent damage to electrical equipment, reduce the risk of electrical fires, and ensure the uninterrupted supply of electricity.
Advantages and Application of Miniature Circuit Breakers (MCBs)
Miniature circuit breakers (MCBs) provide a host of advantages compared to traditional fuses. One key advantage is their high responsiveness to changes in current flow, enabling swift and effective protection against overloads and short circuits. With MCBs, you can ensure that your electrical system remains safe and reliable.
MCBs are designed with a trip-free switching mechanism that instantly cuts off power in the event of an overload. This feature enhances the safety of your electrical circuits, preventing any potential damage or hazards. Additionally, MCBs are incredibly user-friendly, offering ease of installation and operation.
Another advantage of MCBs is the wide variety of models available, catering to different application requirements. Whether you need a specific current rating, breaking capacity, or fault protection characteristics, there is an MCB type that suits your needs. This flexibility allows for customization and ensures optimal performance, making MCBs a versatile choice for various electrical systems and applications.
FAQ
A miniature circuit breaker (MCB) is an important component of an electrical system that provides protection against overloads and short circuits. Unlike traditional fuses, MCBs are automatic switches that open and close in response to changes in current flow, offering improved safety and convenience.
A miniature circuit breaker (MCB) works by using two types of tripping mechanisms: thermal tripping and magnetic tripping. Thermal tripping responds to excessive heat caused by an overload, while magnetic tripping responds to sudden increases in current flow caused by a short circuit.
Miniature circuit breakers (MCBs) offer several advantages over traditional fuses. They are highly responsive to changes in current flow and provide reliable protection against overloads and short circuits. MCBs are easy to use, with a trip-free switching mechanism that instantly shuts off power in the event of an overload. They also have a wide range of models available, allowing for customization based on specific application requirements.