INTRODUCTION
This instruction manual provides information about the operation and installation of the BE1-27
Undervoltage Relay, the BE1-59 Overvoltage Relay, and the BE1-27/59 Under/Overvoltage Relay. To
accomplish this, the following information is provided:
• Gene
ral Information and Specifications
• Cont
rols and Indicators
• Fun
ctional Description
• Installation
• Testing
WARNING!
To avoid personal injury or equipment damage, only qualified personnel should
perform the procedures in this manual.
NOTE
Be sure that the relay is hard-wired to earth ground with no smaller than 12 AWG
copper wire attached to the ground terminal on the rear of the unit case. When
the relay is configured in a system with other devices, it is recommended to use a
separate lead to the ground bus from each unit.
9170600990 Rev H BE1-27/59 Introduction i
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