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ABB Air Circuit Breaker - 1250A

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MOQ : 100 Pieces

ABB Air Circuit Breaker - 1250A Specification

Rated Short Circuit Making Current
143 kA peak

Rated Short Circuit Breaking Current
65 kA

Breaking Capacity
65 kA at 415V AC

Phase
Three Phase

Mechanical Life
20,000 operations

Product Type
Air Circuit Breaker

Installation Options
Fixed/Drawout

Function
Overcurrent, Short circuit and Earth fault protection

Poles Number
3 Poles

Rated Voltage
690V AC

Rated Current
1250A

Rated Frequency
50/60 Hz

Curves
Type C / Standard Industrial Curves

Temperature Protection
Integrated Electronic Trip Unit

Weight
Approx. 28 kg

Color
Grey/Black

Mounting
Horizontal / Vertical

Rated Insulation Voltage
1000V

Utilization Category
AC-3, AC-4 (IEC 60947-2)

Standards
IEC 60947-2, IS 13947-2

Electrical Life
5,000 operations at rated current

Protection Class
IP20

Trip Unit Type
Microprocessor Based / Electronic

Auxiliary Contacts
Available (NO+NC)

Shock Resistance
30g

Control Voltage
24V/110V/220V AC/DC (as per configuration)

Operating Temperature Range
-5°C to +40°C

ABB Air Circuit Breaker - 1250A Trade Information

Minimum Order Quantity
100 Pieces

Supply Ability
100 Pieces Per Day

Delivery Time
2 Days

Sample Available
Yes

Main Domestic Market
All India

About ABB Air Circuit Breaker - 1250A

An air Circuit Breaker (ACB) is an electrical device used to provide Overcurrent and short-circuit protection for electric circuits over 800 Amps to 10K Amps. ... Air circuit breaker is circuit operation breaker that operates in the air as an arc extinguishing medium, at a given atmospheric pressure.

Advanced Protection and Reliability

ABBs 1250A Air Circuit Breaker is engineered for demanding industrial environments, providing essential protection against short circuits, overcurrents, and earth faults. Its microprocessor-based trip units offer precise fault detection and real-time temperature protection, ensuring the safety and longevity of your electrical equipment.

Flexible Installation and Configuration

Designed to meet diverse application needs, the ACB supports both horizontal and vertical mounting, with options for fixed or drawout installations. Auxiliary contacts (NO+NC) and multiple control voltage choices make integration seamless. The robust protection class (IP20) and shock resistance (30g) make it ideal for challenging operational conditions.

Compliant with International Standards

The ABB Air Circuit Breaker adheres strictly to IEC 60947-2 and IS 13947-2 standards, ensuring high levels of safety, performance, and compatibility. Rated insulation voltage up to 1000V and a mechanical life of 20,000 operations underscore its durability and reliability in continuous industrial use.

FAQs of ABB Air Circuit Breaker - 1250A:

Q: How does the ABB Air Circuit Breaker ensure overcurrent and short circuit protection?

A: The breaker uses a microprocessor-based or electronic trip unit to detect overcurrent, short circuit, and earth fault conditions. Upon identifying a fault, it disconnects the circuit rapidly, protecting equipment and personnel from electrical hazards.

Q: What is the process for selecting the appropriate control voltage for this air circuit breaker?

A: You can choose from 24V, 110V, or 220V AC/DC control voltages based on your system requirements. Selection is made during configuration to ensure compatibility with the existing control circuits in your installation.

Q: When should the air circuit breaker be installed as fixed or drawout?

A: Fixed installation is recommended for applications where frequent removal is unnecessary, while drawout installation suits environments requiring regular maintenance, testing, or fast replacement of the breaker without disturbing adjacent circuits.

Q: Where can this air circuit breaker be mounted in an electrical system?

A: The ABB ACB can be mounted horizontally or vertically, offering flexibility in panel design and making it suitable for various industrial switchboards and motor control centers.

Q: What are the benefits of integrated electronic trip units in this breaker?

A: Integrated electronic trip units provide advanced fault detection, temperature protection, and adjustable protection settings, enhancing both safety and operational reliability compared to traditional thermal-magnetic trip units.

Q: How long is the electrical and mechanical life of the ABB 1250A Air Circuit Breaker?

A: The air circuit breaker has an electrical life of up to 5,000 operations at rated current and a mechanical life of 20,000 operations, ensuring robust performance even in demanding industrial scenarios.

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