DZ7 solar MCCB 800V

Rated currents: 160A*, 250A, 320A, 400A, 500A, 630A, 800A

• 3P/4P

• Double break high breaking capacity contact system

• Double insulation

•

• Positive isolation

• RoHS compliant

• 6 cavities in the MCCB for variety of accessories

- Auxiliary contacts - 03 nos.

- Trip Alarm Contact - 01 nos.

- Under voltage release - 02 nos. or Shunt release - 02 nos. or combination of

Under voltage release - 01 nos. or Shunt release - 01 nos.

• MCCBs for Switch Disconnector

• Conforms to IS 60947-2, IEC 60947-2 and EN 60947-2

Protection using both Thermal Magnetic & Microprocessor based Relea

Advance Information*

Introduction

The DZ7 Solar MCCB 800V series by L&T is a cutting-edge molded case circuit breaker specifically designed for high-efficiency solar applications. This advanced electrical component stands out for its exceptional reliability, robust protection features, and adaptability, catering to a wide range of requirements within the solar energy sector. It is engineered to handle nominal ratings up to 800V AC, making it an essential device for safeguarding photovoltaic systems.

Product Variants

The L&T DZ7 800V Solar MCCB series comes in several variants based on their rated currents and pole configurations. The available rated currents are: - 160A - 250A - 320A - 400A - 500A - 630A - 800A

It also offers flexibility in terms of pole configurations with both 3P (three-pole) and 4P (four-pole) options, ensuring the versatility to match various system designs and requirements.

Key Features

Overload Protection

• Wide Range of Overload Setting: The DZ7 MCCB allows overload settings starting from 0.25In, providing precise and customizable protection for solar installations.
• Adjustable Trip Class: Users can tailor the trip class to match specific application needs, offering flexibility in how quickly the breaker responds to overload conditions.
• Neutral Overload Protection: This feature safeguards the system's neutral line, ensuring comprehensive protection across all connections.

Short Circuit Protection

• Short Circuit Setting with Delay or Instantaneous Option: Users can configure the MCCB to respond immediately or with a predefined delay upon detecting short circuits, based on the protection strategy in place.
• Adjustable Instantaneous Setting: The instantaneous setting is adjustable, allowing fine-tuned responses to short circuit events.

Indication and Release Testing

• Separate LEDs for Overload, Short Circuit, and Instantaneous Indication: Dedicated LEDs provide at-a-glance status information, simplifying monitoring and diagnostics.
• Provision for Release Testing: Enables periodic testing of the breaker’s release mechanism to ensure consistent performance.

Electrical Characteristics

The DZ7 Solar MCCB is geared towards exceptional electrical performance at 800V AC. It is particularly suited for isolator applications to switch high-current loads such as UPS systems, battery banks, and more.

High Breaking Capacity Contact System

• Double Break High Breaking Capacity Contact System: This feature introduces enhanced safety and reliability, significantly improving the device’s performance during high fault conditions.

Insulation and Safety

• Double Insulation: Ensures added safety by providing an additional layer of protection against electrical faults and accidental contact.

Positive Isolation

The positive isolation mechanism ensures a clear and definitive disconnection of electrical circuits during maintenance or fault conditions, contributing to enhanced safety and reliability.

Compliance and Standards

The DZ7 Solar MCCB conforms to the following standards: - IS 60947-2 - IEC 60947-2 - EN 60947-2

These standards guarantee that the MCCB meets stringent international guidelines for electrical safety and performance.

Sustainability

• RoHS Compliant: Adhering to the Restriction of Hazardous Substances Directive ensures that the DZ7 MCCB minimizes environmental impact by eliminating or reducing harmful materials.

Accessory Compatibility

The DZ7 MCCB offers extensive compatibility with various accessories, enhancing its functionality and integration capabilities within complex electrical systems. The accessory compatibility includes: - Auxiliary Contacts: Up to 3 auxiliary contacts can be integrated, providing additional control and monitoring options. - Trip Alarm Contact: 1 trip alarm contact helps in alerting when the breaker trips, facilitating immediate attention. - Under Voltage Release / Shunt Release: Support for either two under voltage releases or shunt releases, or a combination of one each, enhancing the safety and control of the electrical system.

Applications

Solar Energy Systems

Designed with solar applications in mind, the DZ7 800V Solar MCCB is ideal for protecting photovoltaic installations, ensuring that they operate efficiently and safely under varying conditions.

Isolator Applications

The MCCB is well-suited for isolator applications, providing secure switching capabilities for UPS systems, battery banks, and other high-current loads.

Detailed Specifications

Model: DZ7 Solar MCCB 800V
Rated Voltage: 800V AC
Rated Currents: 160A, 250A, 320A, 400A, 500A, 630A, 800A
Pole Configuration: 3P / 4P
Breaking Capacity: High
Insulation: Double
Compliance: IS 60947-2, IEC 60947-2, EN 60947-2
Features: - Overload Protection