Explore performance details, construction highlights, applications, and technical information in one clear overview.
The APEM Panel Switches 6649-03LMK is a double pole autoswitch designed for industrial applications. Featuring nickel-plated bushings and bright chrome-plate components, this switch offers robust electrical performance with an insulation resistance of 1,000 MΩ min. at 500 VDC and dielectric strength of 2,000 Vrms 50 Hz min. between terminals. Its 10,000-cycle electrical life ensures reliable operation across temperatures from -40 °C to +85 °C.
The APEM Panel Switches 6649-03LMK is a double pole autoswitch engineered for demanding industrial environments. This switch delivers precise ON-OFF-ON electrical control with a nickel-plated bushing and bright chrome-plate finish, providing exceptional durability and performance. Its sealed construction with a single O-ring and sealing washer ensures reliable operation in harsh conditions, while the 10,000-cycle electrical life and wide temperature range of -40 °C to +85 °C make it suitable for continuous use in critical applications.
The APEM Panel Switches 6649-03LMK delivers robust electrical performance with a minimum insulation resistance of 1,000 MΩ at 500 VDC and dielectric strength of 2,000 Vrms 50 Hz between terminals. This ensures reliable operation in high-voltage environments while maintaining safety standards. The switch also features an initial contact resistance of 10 mΩ max., minimizing energy loss during switching operations.
Engineered for extreme conditions, the switch operates within a temperature range of -40 °C to +85 °C, making it suitable for both cold and hot industrial environments. Its sealed construction with a single O-ring and sealing washer provides protection against dust and moisture, ensuring long-term reliability in harsh settings.
The switch is designed with a maximum panel thickness of 5 mm (.196) and a torque specification of 1.50 Nm (1.10 Ft.lb) for nut tightening. This ensures secure installation and long-term mechanical stability without compromising performance.
The APEM Panel Switches 6649-03LMK includes a front panel sealing system with one O-ring and sealing washer, providing effective environmental protection. Additionally, the locking levers offer three secure positions, ensuring consistent and reliable operation without unintended movement.
| Feature | Specification |
|---|---|
| Insulation resistance | 1,000 MΩ min. at 500 VDC |
| Dielectric strength | 2,000 Vrms 50 Hz min. between terminals3,000 Vrms 50 Hz min. between terminals and frame |
| Torque | 1.50 Nm (1.10 Ft.lb) max. applied to nut |
| Panel thickness | 5 mm (.196) max. |
| Operating temperature | -40 °C to +85 °C |
| Sealing | Front Panel Sealing with One O-Ring and Sealing Washer |
| Electrical Functions | ON OFF ON |
The APEMPanel Switches 6649-03LMK is presented using the documented product characteristics available for this model.
| Feature | Specification |
|---|---|
| Insulation resistance | 1,000 MΩ min. at 500 VDC |
| Dielectric strength | 2,000 Vrms 50 Hz min. between terminals3,000 Vrms 50 Hz min. between terminals and frame |
| Torque | 1.50 Nm (1.10 Ft.lb) max. applied to nut |
| Panel thickness | 5 mm (.196) max. |
| Operating temperature | -40 °C to +85 °C |
| Sealing | Front Panel Sealing with One O-Ring and Sealing Washer |
| Electrical Functions | ON OFF ON |
Browse product families and jump into the exact catalog section you need.