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GE CR307BT94TC1RASAA

The GE CR307BT94TC1RASAA is a CR300/CR307 series industrial control relay with plug-in base mounting, belonging to GE’s 300/400-line combination motor control family. The CR307 series is classified as NEMA Size 2 equipment with a maximum continuous rating of 45 A and a maximum voltage of 600 V.
  • Product Type: Plug-in Control Relay / CR307 Series Combination Starter Component
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Detailed content

  • Coil Voltage: 24 VDC (“B” in the code denotes 24 VDC coil)
  • Coil Consumption: ≤1.5 W typical
  • Contact Form: DPDT (double-pole double-throw) conversion contacts (“T” = DPDT, “C” = conversion contact)
  • Contact Rating: 10 A @ 250 VAC / 10 A @ 30 VDC (resistive load)
  • Number of Contacts: 1 group of conversion contacts (denoted by “1R”)
  • Mechanical Life: ≥10 million operations
  • Electrical Life: ≥1 million operations at rated load
  • Insulation Class: B (130°C)
  • Response Time: ≤15 ms pickup / ≤10 ms release
  • Return Factor: ≥70%
  • Operating Temperature: –40°C to +70°C
  • Vibration Resistance: 10 g, 10–500 Hz
  • Protection Rating: IP20 (after installation)
  • Certifications: UL, CSA, CE compliant
  • Materials:
    • Housing: PA66 nylon, flame-retardant UL94 V-0
    • Contacts: AgSnO₂ (silver-tin oxide)
    • Coil bobbin: PBT engineering plastic
    • Terminals: phosphor bronze, tin-plated
  • Structural Features: Standard socket mounting compatible with CR300 series bases (e.g., CR300BA); compact body approx. 22.5 mm wide; transparent mechanical indicator window on top; quick plug-in terminals at bottom
  • Working Principle: When the coil is energized, the generated magnetic field drives the armature, switching the moving contact from the normally closed (NC) position to the normally open (NO) position.
  • Functional Highlights:
    • Plug-in base design allows relay replacement without de-energizing the base circuit
    • Built-in mechanical indicator visually shows pickup status
    • Coil terminals include reverse-polarity protection diode (DC type)
  • Installation Requirements: Install on a standard CR300 series relay socket or DIN rail adapter; separate coil wiring from contact wiring.
  • Usage Notes: Do not exceed the rated contact load; periodic inspection of contact resistance is recommended; the CR307 series incorporates a Strongbox encapsulated coil resistant to moisture and dirt, plus an adjustable overload relay with ±10% field adjustment.

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