MNEACQZD-2P

MidNite Solar MNEACQZD-2P – Double Pole DIN Rail Mount AC Breaker for 277VAC Protection

• When it comes to building safe and efficient solar power systems in the USA, choosing the right electrical protection components is crucial.
• Whether you're designing a residential solar setup or managing a commercial installation, overcurrent protection plays a key role in system reliability and safety.
• The MNEACQZD-2P from MidNite Solar is a robust, compact, and high-performance DIN rail-mounted AC breaker, purpose-built for 277VAC applications.
• Offering supplementary protection, this breaker is UL 1077 listed and is available in 30A, 50A, and 60A variants.
• In this article, we’ll explore why the MNEACQZD-2P is an ideal choice for your electrical protection needs, covering its specifications, key benefits, use cases, and why MidNite Solar products are trusted across the American solar market.

What Is the MNEACQZD-2P?

• The MidNite Solar MNEACQZD-2P is a white, 277VAC, DIN rail-mounted, double pole breaker designed for supplementary circuit protection. It’s engineered to handle continuous current loads of up to 60 amps, making it ideal for demanding applications.
• It’s compact, easy to install, and delivers reliable protection for solar and general AC electrical systems. As a UL 1077 listed device, it is intended for use downstream of a branch circuit breaker, adding an extra layer of safety to your system.

Key Features of the MNEACQZD-2P

• Voltage Rating: 277VAC, suitable for residential and commercial AC systems.
• Amperage Options: Available in 30A, 50A, and 60A to suit various system loads.
• Double Pole Protection: Secures both lines in a 277VAC configuration, ensuring balanced and safe protection.
• DIN Rail Mounting: Designed for quick, secure installation in control panels and MidNite enclosures.
• UL 1077 Supplementary Protection: Certified protection for use downstream of main branch protection.
• High Interrupt Capacity: Rated to safely interrupt currents up to 3,000 Amps.
• Indoor Use (Type 1): Intended for installation in dry, controlled environments.
• Compact and Durable Design: Saves space while maintaining rugged reliability for long-term operation.

Technical Specifications

• Product Name: MNEACQZD-2P
• Brand: MidNite Solar
• Amperage Ratings: 30A, 50A, 60A
• Voltage: 277VAC
• Number of Poles: Double Pole
• Mounting: DIN Rail
• Interrupt Rating: 3,000 AIC (Ampere Interrupting Capacity)
• Environmental Rating: Type 1 (Indoor only)
• Torque Rating: 20 In-Lbs (2.3 Nm) for terminal screws
• Certifications: UL 1077 listed for supplementary protection
• Color: White

Benefits of Choosing the MNEACQZD-2P

• Whether you're installing a new system or upgrading an existing one, the MNEACQZD-2P offers multiple benefits:
• Enhanced Equipment Safety
  Protects inverters, lighting, and other sensitive electrical components from overloads and short circuits.
• Efficient and Secure Installation
  DIN rail mountable with easy-to-use screw terminals. Installs in minutes without special tools.
• Flexible Amp Range
  Choose from 30A, 50A, or 60A to meet your load demands and maintain circuit integrity.
• UL 1077 Certified
  Meets national and local code requirements for supplementary protection devices in solar and electrical systems.
• Long-Term Durability
  Engineered to perform in continuous-use scenarios, especially when installed in MidNite Solar enclosures.
• Compact for Panel Efficiency
  Saves space in control panels, allowing for higher circuit density and better organization.

Use Cases for MNEACQZD-2P

• The MNEACQZD-2P is an ideal choice for a wide variety of AC applications, particularly in solar and commercial systems:
• Solar Inverter Output Protection
  Safeguard AC output from grid-tied or off-grid inverters in residential and commercial setups.
• Commercial Lighting Circuits
  Used in buildings and warehouses with 277VAC lighting configurations for reliable current control.
• Battery-Based Inverter Systems
  Protects AC outputs from inverters connected to battery banks, reducing risk of system failure.
• Panelboards and Load Centers
  Provides reliable protection in panelboards, especially where space efficiency and double pole protection are needed.
• Industrial Equipment
  Used in control panels for machinery, automation systems, and motor-driven equipment requiring supplementary AC protection.

Installation Guidelines for the MNEACQZD-2P

• Installing the MNEACQZD-2P is straightforward but should be performed by a qualified technician. Follow these best practices:
• Ensure the breaker matches your system’s voltage and amperage requirements.
• Mount on a standard DIN rail inside a Type 1 (indoor-rated) electrical enclosure.
• Torque all terminals to 20 In-Lbs (2.3 Nm) to ensure secure electrical connections.
• Pair with a UL 489 branch-rated breaker upstream for code compliance.
• Only use in dry, controlled environments where temperature and humidity are regulated.

What Is UL 1077 and Why It Matters

• The MNEACQZD-2P is certified to UL 1077, which defines it as a supplementary protector. Unlike UL 489 branch breakers, UL 1077 breakers are meant to provide additional safety for equipment downstream of the main breaker.
• This means they are perfect for safeguarding devices such as:
  • Inverter outputs
  • Sensors and relays
  • Lighting fixtures
  • Control circuits
  • Supplementary protection breakers help isolate faults before they affect your entire system.

Why Choose MidNite Solar?

• MidNite Solar is a trusted American brand known for manufacturing high-quality solar electrical components. Their products are designed specifically with the renewable energy market in mind and are widely used in residential, commercial, and industrial solar applications.
• With a focus on innovation, reliability, and safety, MidNite Solar continues to lead the market in producing durable, UL-listed components for solar professionals and homeowners alike.
• The MNEACQZD-2P is just one example of their commitment to performance and protection.

Quick Summary of the MNEACQZD-2P

• Product: MNEACQZD-2P
• Brand: MidNite Solar
• Voltage: 277VAC
• Poles: Double Pole
• Mounting Type: DIN Rail
• Amperage Options: 30A, 50A, 60A
• Certification: UL 1077 Listed
• Interrupt Capacity: 3,000 AIC
• Environment: Indoor use only (Type 1)
• Use Cases: Inverter output, lighting, industrial equipment, control panels

• In solar and electrical systems, using high-quality protection devices is not optional — it's essential. The MidNite Solar MNEACQZD-2P delivers dependable AC circuit protection with a compact, easy-to-install design suitable for a wide range of applications.
• Whether you’re a solar installer, electrical contractor, or homeowner focused on system safety, the MNEACQZD-2P offers value, performance, and peace of mind.
• Find the right amperage and order your MidNite Solar MNEACQZD-2P today from solampio.com — your trusted source for solar protection components in the USA.