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GE THN3364SS
Product Overview & Core Function
This is a 3-wire, 3-pole, non-fusible heavy-duty safety switch designed for commercial and industrial applications where safety, high performance, and continuity of service are essential. It is suitable for use as service equipment when installed in accordance with the National Electrical Code. The switch features a quick-make and quick-break mechanism and is housed in a 304 stainless steel enclosure for corrosion resistance.
Detailed content
Technical Specifications
- Brand: GE Industrial
- Sub-Brand: Spec-Setter™
- Type: Heavy-Duty Safety Switch (Non-Fusible)
- Voltage Rating: 600 VAC
- Amperage Rating: 200 A
- Poles: 3
- Wires: 3
- Frequency: 50/60 Hz
- Fusible / Non-Fusible: Non-Fusible
- Enclosure: NEMA 4, 4X (Water/Dust-tight)
- Material: 304 Stainless Steel
- Conductor Size: 2 AWG – 250 KCMIL Copper/Aluminum
- Conductor Rating: 60/75 °C
- Short Circuit Current Rating: 200 kA (per some sources)
- Mechanism: Quick-make, quick-break
- Interlocks: Full cover interlocks
- Dimensions: 35.1 in (H) × 14.5 in (W) × 5.2 in (D)
- Weight: 50 lb (approximately 22.7 kg)
- Standards: UL Listed, CSA Certified, GSA Compliant
Maximum Load Capacity
- 1-Phase: 50 hp at 480/600 VAC
- 3-Phase: 60 hp at 240 VAC, 125 hp at 480 VAC, 150 hp at 600 VAC
- DC: 40 hp at 250 VDC
Structural & Functional Features
- Quick-make, quick-break mechanism for positive ON/OFF indication
- 304 stainless steel housing to withstand daily wear and tear and corrosive environments
- Full cover interlocks
- Coin-proof, defeatable dual interlocks meeting safety inspection requirements
- Clear line shield allowing visual verification of blade position
- 3-point mounting pattern for fast installation
- Suitable for use as service equipment per NEC
Application Scenarios
Commercial and industrial applications in corrosive environments where safety, high performance, and continuity of service are essential. Used as a service disconnect or heavy-duty safety switch for motors and power distribution equipment up to 150 hp at 600 VAC 3-phase.
Installation & Usage Notes
- Install in accordance with the National Electrical Code (NEC).
- Ensure proper torque on line and load lug terminals for 2 AWG – 250 KCMIL conductors.
- Verify the enclosure is suitable for the environmental conditions (NEMA 4/4X for water/dust-tight and corrosion resistance).
- De-energize the circuit before performing any maintenance or cover removal.
- This product is discontinued; spare units may be available as surplus.
