Remote transformers convert available 120 or 240 volt primary power supply to 12 or 24 volts for fixture operation. Transformers are required only for use with Remote Transformer standard or remodel Rough-ins, downlights used without Rough-ins, and spotlights. TW-100 and smaller are suitable for 50/60Hz. All transformers are UL Listed and CSA Certified. Transformers must be specified with appropriately sized secondary fuses and fuse holders.

ELECTROMAGNETIC TRANSFORMERS

ELECTRONIC TRANSFORMERS

UL Listed features lightweight and compact design with self-resetting short circuit and overload protection. Fully dimmable using standard incandescent dimmers. 120 volt primary, secondary voltage as indicated.

CLASS II TRANSFORMERS

UL Recognized Class II transformers with 120 volt primary, secondary voltage as indicated.

FUSES AND HOLDERS

All low voltage circuits must be protected with in-line fuses properly sized to the load.

BREAKER BOXES:

UL Listed low voltage breaker boxes provide a convenient and easy way to handle multiple low voltage circuits. Low voltage power is brought from the transformer to the breaker box where wiring can be easily installed to screw down type contacts. Each circuit is protected by a resettable circuit breaker. Specify circuit breaker size when ordering.

WARNING

All circuits must be properly protected by in-line fuses, circuit breakers, or thermal devices which are correctly sized to the load. It is strongly recommended that circuit layout and power requirements be determined by professionals and that installation be made only by qualified electricians.

HOW TO SPECIFY

TRANSFORMERS:

Determine the total wattage by adding the wattages of all lamps in each circuit, specify the transformer accordingly. Where several circuits will be powered by a single transformer, add the combined wattages for all circuits. Always derate nominal transformer capacity by 20%.

FUSES:

Divide the total circuit wattage by the operating voltage to determine the amperage; round up to the nearest size fuse.

EXAMPLE:

To operate 5 ASX81 units installed into 5 ASXFL adaptors with 20 watt MR-11's.

DETERMINE TOTAL WATTAGE:

5 X 20 watts = 100 watts

DETERMINE TOTAL AMPERAGE:

5 X 20 watts = 100 watts

DETERMINE TOTAL AMPERAGE:

100 watts / 12v = 9 amps

The correct transformer is a TW-150, the correct fuse and fuse holder is an ILH30 with an FP10. A TW-100 transformer has a maximum capacity of only 80 watts (100 less 20%) so the next larger size, a TW-150 is appropriate.