Square D MGF26800 Molded Case Circuit Breaker
- 800A
- 2 Pole
- Unit Mount
Quantity
Square D MGF26800 - 800A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
A robust solution for industrial facilities, the Square D MGF26800 is a 2-pole, 800A molded case circuit breaker. Designed for unit-mount applications, this breaker bolts into Square D switchboards and motor control centers. While this specific M-Frame model has been replaced by the PGF26800, it remains a vital component for servicing legacy installations. It features a microprocessor-based trip unit with adjustable magnetic settings, ensuring precise coordination and reliable protection.Specifications
| Brand | Square D |
|---|---|
| Series | MGF |
| Amperage | 800A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC |
| Frame Type | M |
|---|---|
| Terminal Type | Busbar Connection |
| For Use With | Square D Switchboards, Motor Control Centers |
| Wire Gauge | (3) 3/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kits |
|---|---|
| Accessories | Terminal Nuts (Line & Load) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | 80% Rated, HACR Rated, Non-Interchangeable Trip |
Product FAQs
6 answersWhat type of panels or enclosures accept the MGF26800?
The MGF26800 is a unit-mount, bolt-on circuit breaker designed for individual enclosures, Square D switchboards, and motor control centers. It is not compatible with I-Line panelboards.
What is the difference between the MGF26800, MGL26800, and MGA26800?
These prefixes indicate the mounting and termination style. The MGF26800 is a unit-mount breaker with busbar connections. The MGL26800 is a unit-mount breaker that includes mechanical lugs, and the MGA26800 features an I-Line plug-on mounting style for Square D panelboards.
Can the PowerPacT MGF26800 be reverse fed?
Yes. PowerPacT M-frame circuit breakers can be reverse fed (backfed) because they do not have restrictive LINE and LOAD markings, allowing for top-fed or bottom-fed applications.
What does the "G" in the MGF26800 catalog number indicate?
The "G" designates the interrupting rating tier for this PowerPacT M-frame breaker, which provides 65kA at 240VAC, 35kA at 480VAC, and 18kA at 600VAC.
How does the LI electronic trip unit function on this breaker?
The LI designation means the electronic trip unit provides Long-Time (L) and Instantaneous (I) protection. It features a fixed thermal rating for overload protection and an adjustable magnetic setting for short-circuit protection.
What wire sizes are supported by the MGF26800?
When equipped with the appropriate lug kits, the terminals accept three 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.
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