Additional Technical Characteristics for Type P and Type H Trip Units

Setting the display language: System messages can be displayed in six different languages:

English - US
English - UK
French
German
Spanish
Italian

The desired language is selected via the keypad.

Protection functions: All current-based protection functions require no auxiliary source. Voltage-based protection functions are connected to ac power via a voltage measurement input built into the circuit breaker on the bottom side. (Optional external voltage measurement is available.)

Accuracy of measurements (including sensors):

Voltage (V) 1%
Current (A) 1.5% (higher accuracy [1%] may be achieved with special calibration on the current transformer [CT characterization option])
Frequency (Hz) 0.1 Hz
Power (W) and energy (Wh) 2.5%

The MicroLogic H trip unit uses a dedicated metering data chain separate from the protection data chain so that a greater number of data samples can be used for metering. This increases the number of samples taken per time period, which in turn gives the H trip unit a higher degree of metering accuracy.

Stored information: The fine setting adjustments, the last 100 events and the maintenance record remain in the trip unit memory even when power is lost.

Reset: An individual reset, via the keypad or remotely, will reset alarms, minimum and maximum data, peak values, counters and the indicators.