TESCO introduced the original Meter Test Switch in the early 1920's. TESCO's current line of Test Switches have been designed with the intention to combine the best features of tried and proven switching methods with improvements in materials and construction.

All of the current carrying parts can be supplied with either tin plating, nickel plating or with no plating to suit your needs. Good operating contact is assured on periodic meter test, even when the switch has been idle for long periods of time in an unfavorable atmosphere.

The switches are of the open knife-blade type. Of the two current switch poles in each circuit one is provided with an automatic shorting jaw, and the other has a shunted jack which will receive a Test Plug (Cat. 1077) or our Test Switch Isolator (Cat. 1076)

The test switches are rated at 60 amperes, 600 volt and meet all applicable ANSI C12.9, NEMA and UL safety standards.

We offer 2-13 pole test switches and custom manufacture each order to your specifications.

Test Switch handles are available in multiple colors (including standard Red and Black). Multi colored handle halves are also available to suit your needs.

Also available is the Test Switch Protector (Cat. 6441) to serve as a safety cover during meter cabinet wiring and maintenance to protect against dropped hardware or tools and to protect the meter technician while the test switch blades are in the open position.