MHL36700 - 700 Amp Circuit Breaker

MHL36700 - 700 Amp Circuit Breaker

Meet the MHL36700 — a high-performance, 3-pole, 700 A molded-case circuit breaker designed for demanding industrial and commercial power systems. With a 600 VAC rating and up to 25 kA interrupting capacity (at 600 VAC), this unit delivers dependable protection without taking up excessive panel space. Its built-in ET 1.0 electronic trip unit gives you more precise control over fault response, while the compact frame means you can integrate it into existing installations with less hassle.

Key Features and Benefits

• Integrated ET 1.0 Electronic Trip Unit: Unlike standard thermal-magnetic breakers, ET 1.0 offers fixed long-time protection plus adjustable instantaneous tripping from 2× to 10× nominal current, giving you better selectivity and coordination.
• Compact Footprint, Easy Upgrades: Shares mounting dimensions with other PowerPacT P- and R-frame breakers, so retrofits are simpler and often avoid costly rewiring or adapter kits.
• Durable Construction: Built to withstand real-world conditions, this breaker is engineered for continuous safe performance even in harsh environments.
• Quick Installation & Low Maintenance: Unit-mount lugs and simplified mounting reduce on-site labor. The non-adjustable (fixed) trip unit also means fewer field calibrations.
• Reliable Safety Assurance: Meets UL, CSA, IEC, and other key standards to ensure you’re installing equipment that complies with industry benchmarks.

Technical Specifications

• Rated Current: 700 A
• Number of Poles: 3
• Operational Voltage: 600 VAC (50/60 Hz)
• Breaking / Interrupting Capacity: 25 kA @ 600 VAC (UL 489)
• Continuous Current Rating: 80%
• Magnetic Trip Range: 1,400 A – 7,000 A
• Dimensions (H × W × D): 12.86 × 8.27 × 5.77 in (326.6 × 210.1 × 146.6 mm)
• Weight: ≈ 29 lb (13.2 kg)

Material Compliance and Certifications

• Standards: UL 489, CSA, NEMA, NOM-003-SCFI, and IEC 60947-2 compliance ensure global acceptance.
• Environmental & Insulation Ratings: IP40 protection class, pollution degree 3 per IEC 60947-1.
• Operating Conditions: Rated for operation from –25 °C to +70 °C (–13 °F to 158 °F). At higher altitudes (up to ~13,123 ft), performance is derated per spec.
• Certifications & Labels: Includes CE marking to certify compliance with European health, safety, and environmental directives.

Where It Works Best

• The MHL36700 shines in settings where strong fault-handling, precision, and compatibility with existing gear are essential. It’s a smart pick for:
• Industrial plants that deal with heavy motor starts or large inrush currents
• Commercial building service panels needing high-capacity main breakers
• Retrofit projects where space is limited, but performance can’t be sacrificed.
• Applications requiring strict coordination between upstream and downstream devices