The 4E2-1 Third Rail Voltage Tester is designed to detect electrical potential (voltage) between the third rail and ground on high voltage electrified transit systems. Two, redundant neon bulbs
are used to indicate the presence of voltage.
Features of the 4E2-1 include:
For use on AC or DC, used up to 1500 volts also spans a distance of up to four (4) feet
Has a dual neon lamp principle for double safety protection
Prod handle and the tester housing are both constructed with moisture- and oil-resistant laminated phenolic. The prod tips are made in stainless steel.
Tester housing includes a rubber hand guard to guide the operator in proper placement of his or her hand.
There are no exposed metal parts other than to the two prod tips.
Soldered internal connections.
The Third Rail Tester uses two independent circuits to detect the presence of voltage. This provides double safety protection for the operator.
Neon indicating lamps are mounted in specially shielded cavities within the instrument so that the neon glow indication can be unmistakably seen – even under the most adverse
conditions of bright, direct sunlight on the instrument during tests.
Overall length is 48″ (122 cm); tester housing: 20″ (50.8 cm) long and 1.25″ (3.20 cm) diameter; prod handle: 8″ (20.3 cm) long and 0.625″ (1.60 cm) diameter. Weight 1 pound. Maximum voltage
1,500 volts. Frequency
DC through 60Hz.
Maximum current draw <4 milliamperes at 1,500 volts.