The 12-pole switching wafer system provides our customers with more circuits in less space solving the problem of multi-circuit switching—whether it’s gang switching, circuit selection or matrix switching. You can trust the reliability of T-Bar switching technology after over 50+ years. We are a name you can trust.

Protect against normal ambient dust conditions and developed for use in controlled environments such as test areas, computer control rooms, broadcast studios and network management centers. Wafers are stacked to produce relays in configurations of 4, 8, 12, 24, 36, 48 and 60 Form A, normally open, and 52 Form C, Double Throw. Form B, normally closed switching, is also available in the same number of contacts. Contact Ratings include low level data to 1 Amp (900 Series) and 1 to 5 Amp (800 Series) for control. T-Bar switches come in multi-contact options series: 900 SERIES or 800 SERIES. All products are quality tested for 100% guarantee.


  • APPLICATIONS: Naval vessels, jet aircraft, space launches, monitoring circuits and more.


  • ADVANTAGES: Latching relays and magnetically bistable add the advantages of eliminating power waste during a power loss.
  • AMPERAGE: 5 Amp Series (800 Series) and 1 Amp (900 Series) contact ratings.
  • CIRCUITS: Relays switch from 12 to 52 circuits.
  • COIL CONFIGURATIONS: Two coil configurations available. Polarity inversion control (6 Watts) is standard where the relay is driven into the set or reset (latch/unlatch) position by inverting the polarity of the control voltage. Bifilar operation (10 Watts) can be supplied to latch or unlatch using the same polarity DC control voltage.
  • MECHANICAL LIFE: Million operations with a typical contact resistance of 20 milliohms.
  • POLE CONFIGURATIONS: 12, 24, 36, 48 and 52 pole configurations with Form C (Double Throw, Transfer) switching, 60 poles with Form A switching.
  • POWER REQUIREMENTS: 3 to 6.5 Watts (dependent on contact arrangement).
  • POWER SOURCE: Relay coils operated from 12, 24, 48 or 110 Volts DC and 115 Volts AC.


  • ADVANTAGES: Solves the problem of multi-circuit switching, such as gang switching, circuit selection and matrix switching.
  • POLE CONFIGURATIONS: 12 to 144 pole configurations in Form C switching with maintained action.
  • PUSHBUTTON SWITCHES: Available in general purpose contacts.
  • RELIABILITY PROMISE: 12 pole switching wafers (both 800/900 Series decks) as used on T-Bar Relays assuring the same high-level of reliability promise experienced throughout the T-Bar product line.


  • CUSTOMIZATION: Order your products as you need, when you need with pure flexibility. Let us maximize your product fulfillment.
  • AFFORDABLE PRICING: Our clients appreciate the pricing structures that make sourcing U.S. products with our experienced team a winning decision.
  • EXPERIENCE: 50 years of reliable, manufacturing of quality, dependable electrical products. Solutions to last the test of time.
  • QUALITY CHECKS: Rigorous quality checks and tests are performed before any product is delivered. Military standards such as MIL-P-62011 applied.
  • MADE IN THE U.S.A.: Be proud to source and support electrical solutions manufactured with a local imprint.
  • FAST DELIVERY: On-time and fast delivery, shipped directly to you from the U.S.  Never suffer from International shipping delay’s.
We are family-owned and operated. You can have pride in saying you source your products in the U.S. when you align with Olympic Controls Corporation. Reach out at to discuss how our experienced, professional team can optimize your productivity and maximize control of your power systems with our reliable electric solutions.


Manufacturing quality electrical components in the U.S.A. Providing reliable product line options and a toolbox of technical schematic plus support data. Learn more below:


Get to know our product lines to answer some of the questions you might have before placing an order: Switchgear ComponentsFuel Pumps | Relays | CoilsSwitches.


Dig into our toolbox for what you need today. Download informational sheets, technical schematics, helpful ordering charts and more for Switchgear Components | Fuel Pumps | Relays | CoilsSwitches.


T-Bar, a division of Olympic Controls Corporation, has been a trusted name for reliable manufacturing as well as sourcing U.S. products. Get to know more about our high-capacity switching products today.


Superior quality at the highest level. Precise design, development and manufacturing. These products are built to last.

12 to 144 POLES
3 to 6.5 WATTS