Jard Magnetics

Product Overview

Transformers

Class II
Class II transformers meet Safety Agency requirements to limit output current to safe levels in the event of a short circuit or overload on the control voltage side of the transformer.
Inherently Limited
Inherently limited transformers rely on the coil winding design to limit the output current. Inherently limited transformers are typically rated up to 55 VA.
Non-inherently Limited
Non-inherently limited transformers require a fuse or circuit breaker to limit the output (secondary) current to safe levels in the event of an overload or short circuit. Non-inherently limited transformers are typically 55 VA to 100 VA.
Calculation of VA Requirements
Transformer power is rated by the VA (Volt-Ampere) capability. To determine the required transformer VA, multiply the transformer output voltage (VAC) by the current required (Amps.) to power the load. VA = Volts x Amperes
To determine the maximum output current of a transformer, divide the transformer VA rating by the transformer output voltage (VAC).
Amperes = VA / VAC

Watt Motors

Rotation Standard
Watt motor rotation (CW or CCW) is determined by viewing the motor from the rear, shaft facing away from you.
Maintenance
Motors rated from 2 through 16 watts have sealed, permanently lubricated bearings, and do not require maintenance.
Bearings on motors rated from 25 through 50 watts require periodic lubrication using a high quality electric motor oil. The bearing oil hole is sealed with a screw.
Operating Temperature Range
Jard Watt Motors are designed to operate within an ambient temperature range of -43°F to +140°F (-43°C to +60°C). For long life and widest operating temperature range, Jard uses only Shell Bearing Oils.

* Jard Watt Motors are non-positional and will operate reliably in any orientation.

Color Codes for Transformers Leads

Primary Side

common	120	208	240	277	380	480	575
white	black	red	orange	brown	yellow	violet	gray

Secondary Side

common	2.5	12	24
blue	violet	gray	yellow