GE SELA36AT0100 Spectra RMS SE150 Frame 3-Pole Molded Case Circuit Breaker (MCCB)

Description

Technical Specifications

• Manufacturer: General Electric (GE)
• Model: SELA36AT0100
• Product Line: Spectra RMS (Standard SELA Series)
• Frame Type: SE150 (E-Frame, 150 A frame rating)
• Poles: 3 (Three-phase)
• Continuous Current Rating: 100 A (adjustable via rating plugs: 70/80/90/100 A)
• Voltage Rating:
  • 600 VAC (max system)
  • 480 VAC, 240 VAC, 120/240 VAC compatible
• Interrupting Rating (AIC):
  • 65 kA @ 480 VAC
  • 100 kA @ 240 VAC
  • 25 kA @ 600 VAC (UL); 40 kA @ 500 VAC (IEC)
• Trip System: Digital Solid-State RMS Trip (LSI)
  • L (Long-Time): Adjustable overload protection
  • S (Short-Time): Adjustable short-delay short-circuit protection
  • I (Instantaneous): Adjustable instantaneous short-circuit protection
• Trip Type: Interchangeable, field-replaceable trip unit
• Wire Size Compatibility: 12 AWG to 3/0 AWG (Copper/Aluminum)
• Mounting: Bolt-on (standard panel/switchboard mounting)
• Operating Temperature: -20°C to +60°C (-4°F to 140°F)
• Storage Temperature: -30°C to +85°C (-22°F to 185°F)
• Dimensions (W × H × D): 105 mm × 190 mm × 85 mm (4.12 in × 7.48 in × 3.35 in)
• Weight: 1.8 kg (4.0 lbs)
• Certifications: UL 489, CSA C22.2 No. 5, IEC 60947-2, CE
• Status: Obsolete / Discontinued (EOL); available via surplus, refurbished, or aftermarket channels

Key Features

1. RMS Sensing Technology: Digital sampling measures true RMS current for accurate protection against both sinusoidal and non-sinusoidal (harmonic-rich) loads, ensuring stability in VFD, rectifier, and nonlinear load environments.
2. LSI Trip Functionality: Integrated long-time (overload), short-time (delayed short-circuit), and instantaneous (immediate short-circuit) protection enables precise coordination with upstream/downstream devices, minimizing downtime during faults.
3. Interchangeable Rating Plugs: Front-mounted, field-installable rating plugs allow quick adjustment of continuous current (70–100 A) without replacing the entire breaker, reducing inventory and maintenance costs.
4. Current-Limiting Design: Rapid fault interruption limits peak let-through current and energy, protecting downstream wiring, busbars, and equipment from damage during short circuits.
5. High Interrupting Capacity: Withstand and interrupt fault currents up to 65 kA at 480 VAC, suitable for high-short-circuit-current industrial and commercial systems.
6. Bolt-On Mounting: Secure, vibration-resistant installation in panelboards, switchboards, and MCCs; compatible with standard GE Spectra enclosures.
7. Wide Voltage Compatibility: Operates reliably on 120/240 VAC, 240 VAC, 480 VAC, and 600 VAC three-phase systems, supporting global low-voltage distribution standards.
8. Robust Construction: Industrial-grade molded case housing withstands mechanical stress, temperature fluctuations, and electrical noise, ensuring long-term reliability in harsh environments.
9. Field-Upgradable Trip Units: Trip units can be replaced or upgraded in the field to adapt to changing load requirements or protection schemes, extending service life.
10. Compliance & Safety: Certified to UL 489, CSA, and IEC 60947-2 standards, meeting global electrical safety and performance requirements.

Applications

• Industrial Facilities: Protects motors, VFDs, transformers, and distribution feeders in manufacturing plants, refineries, and processing facilities; ideal for harmonic-rich environments with nonlinear loads.
• Commercial Buildings: Safeguards lighting, HVAC, and power distribution systems in office towers, malls, hospitals, and data centers; ensures reliable, safe power distribution.
• Electrical Distribution: Used in panelboards, switchboards, and MCCs for main feeder, sub-feeder, and branch circuit protection in low-voltage three-phase systems.
• HVAC & Refrigeration: Protects large compressors, fans, and pumps in commercial and industrial HVAC/R systems; handles high inrush currents and cyclic loads.
• Retrofit & Replacement: Direct replacement for legacy GE Spectra SE150 frame breakers in existing installations; maintains compatibility with older panel and switchboard infrastructure.
• Institutional Facilities: Provides reliable circuit protection in schools, universities, government buildings, and healthcare facilities; meets strict safety and reliability standards.

System Compatibility

• Compatible Enclosures: GE Spectra series panelboards, switchboards, and MCCs; third-party enclosures with standard MCCB mounting dimensions.
• Protection Coordination: Coordinates with GE Spectra series breakers, relays, and fuses for selective tripping; integrates with upstream main breakers and downstream branch devices.
• Replacement Options: Modern equivalent is the ABB Tmax XT series MCCB (following GE’s low-voltage distribution business acquisition by ABB).