DC CONTACTORS AND DISCONNECT SWITCHES

  1. Specify your continuous current rating.
  2. Curtis/Albright contactors for Power Systems and Telecommunications applications are available at ratings of 125, 200, 250, 400, 600, 800 and 1200 Amperes.

    Curtis/Albright contactors for Vehicle and Industrial applications are available at ratings of 100, 125, 150 and 250 Amperes.

  3. Select the general product type and specific configuration that fits your needs.

  4. Contactors
    • On/off: single pole, single throw
    double pole single throw
    • Changeover: single pole double throw
    • Forward/reverse: single or double pole

    Manual Disconnect Switches
    • Single Pole
    • Double Pole
  5. Find the Curtis/Albright model number in our Model Selection chart.
  6. VEHICLE AND
    INDUSTRIAL APPLICATIONS

    Model Selection Chart

    POWER SYSTEMS AND
    TELECOMMUNICATIONS APPLICATIONS

    Model Selection Chart

  7. Choose options to add functionality or to customize the contactor or switch to your specific requirements.
  8. From special mounting brackets, to protective covers, to coils for AC applications, Curtis/Albright options give you the flexibility to custom-design a product to your needs.

Built to deliver renowned Curtis/Albright performance and reliability.

  • High continuous current ratings in compact, rugged packages. Coils available to your specification anywhere in the range of 6 to 240 volts DC. An additional bridge rectifier enables using coils with AC power.

  • Weld-resistant, hard-wearing silver alloy contact tips for excellent conductivity and long life. Double breaking design protects against arcing.

  • Easy to install, and fully field serviceable with genuine Curtis/Albright parts.

  • UL recognized for use in power systems/telecommunications and industrial applications. (Select models not yet listed ready to be submitted to UL upon customer request.)

  • Silver-plated busbars on 600-amp and higher models prevent oxidation and eliminate the need to prepare connectors for installation.

Options let you tailor a product to your applicatoin.

  • Auxiliary contacts. A set of auxiliary contacts (one normally open, one normally closed) mechanically linked to the main contacts.

  • Magnetic blowouts.Protects against sustained arcs; recommended at 48 volts DC and higher.

  • Coils for continuous operation.Allow continuous energization of the coil, compared with standard coils rated for intermittent operation (ON time under 70 percent and less than 15 minutes).

  • Mounting brackets.A wide selection of standard brackets for easy installation anywhere; customized brackets and hardware for special applications are available.

  • Coil suppression.Diode suppresses voltage spikes when coil is de-energized. Because this slows the contacts drop-out time, resistor/diode combinations are available to minimize this effect.

  • Enclosed top cover.Protects contacts from dust and other contaminants (not recommended with use of magnetic blowouts).

  • AC operated coil.DC coil fitted with bridge rectifier for use with AC power.

  • Large diameter contact tips.Increased surface area minimizes contact corrosion from high switching frequencies.

  • Lockable mechanism.A manual disconnect switch that – once engaged to the OFF position – can only be rearmed with the supervisor’s key.

  • Metal enclosed contactors.Available for industrial vehicle applications requiring UL-EE rating.

Worldwide industry leader

For more than 35 years, designers and engineers have trusted the precision and craftsmanship of products from Curtis Instruments to help make their own products and systems perform better. Customer confidence and loyalty is why we are now the world’s largest manufacturer of instruments and controls for battery-powered equipment. And it’s also why you can count on our long-standing partnership with the engineers of Albright International, Ltd., a trusted worldwide industry leader, to provide you with contactors and disconnect switches meeting the same high standards you’ve always associated with the name Curtis.