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GE CR306F002XABA

Product Name:​ NEMA Magnetic Motor Starter (CR306 Series)
Product Overview:​ This is a NEMA Size 4 non-reversing magnetic motor starter from GE’s CR306 / 300-Line series, designed for three-phase motor control with integrated overload protection.
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Detailed content

Technical Specifications:
  • Manufacturer:​ General Electric
  • Series:​ CR306 (300-Line)
  • Starter Style:​ NEMA
  • NEMA Size:​ 4
  • Poles:​ 3
  • Phase:​ Three-phase
  • Max Current (AC):​ 135 A
  • Coil Voltage:​ 120V AC (115-120V AC / 110V 50Hz)
  • Frequency:​ 50/60 Hz
  • Maximum Voltage Rating:​ 120V AC (some configurations up to 600V AC)
  • Horsepower Ratings:
    • 208V AC: 40 hp
    • 240V AC: 50 hp
    • 480V AC: 100 hp
    • 600V AC: 100 hp
  • Overload Protection:​ Thermal overload relay (trip class selectable 10, 20, 30)
  • FLA Range:​ 65-135A
  • Reversing Capability:​ Non-Reversing
  • Enclosure:​ No Enclosure (Open style)
  • Mounting Style:​ DIN Rail
  • Dimensions:​ 6.62 in W × 6.5 in D × 11.62 in H
  • Weight:​ Approximately 17.95 lbs (8.72 kg per some references)
  • Operating Temperature:​ -4°F to 158°F (-20°C to 70°C per some references)
  • Standards:​ UL 508, CSA
  • Country of Origin:​ USA
Functional Features:
  • Connects and disconnects power to motors and other high-current equipment in a single direction
  • Thermal overload relay trips the starter when current reaches a predetermined range of full-load amperage
  • Adjustable current settings with semiconductor-based monitoring
  • Weld-resistant contacts
  • Includes holding interlock
  • Auxiliary contacts: 1NO included (A600, Q600 rated)
Application Scenarios:​ Used in industrial electrical distribution and motor control for heavy-duty three-phase AC motors in applications such as pumps, fans, compressors, conveyors, and other high-current equipment requiring 135A continuous rating.
Structural Features:​ Open-style (no enclosure) modular construction with three main poles, thermal overload relay, electromagnetic coil, and DIN rail mounting capability. Terminals accept 10-3/0 AWG copper wire.
Working Principle:​ When the 120V AC coil is energized, the electromagnetic field closes the three main contacts, connecting power to the motor. The thermal overload relay monitors current draw and trips the starter open if current exceeds the preset threshold for a sustained period, protecting the motor from damage.
Installation & Usage Notes:
  1. Install on DIN rail or bolt-down mounting in a suitable electrical enclosure (the unit itself is open-style with no enclosure)
  2. Ensure proper torque (200 lb·in) on terminal connections for 10-3/0 AWG copper wiring
  3. Set the overload relay to the correct FLA (full-load amperage) of the motor being protected
  4. Verify coil voltage matches the control circuit (120V AC)
  5. Apply lockout/tagout procedures before installation or maintenance
  6. Ensure compliance with UL 508 and applicable electrical codes

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