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NOVATEK-ELECTRO
РН-260t
This Operation Manual is intended to let you know about the device, safety requirements, operation and
maintenance procedures for the voltage-response relay PH-260t (hereinafter in the text: the device, PH-260t).
The device meets the requirements of the following:
EN 60947-1;
EN 60947-6-2; EN 55011;
EN 61000-4-2.
Harmful substances, in more than allowed concentration, are not available.
Terms and abbreviations:
Controlled parameter –mains voltage and a parameter (variable) selected by the User (total power, active power,
reactive power, load current), with exceeding of which the device opens contacts 1-3 (Fig. 1);
AR –delay of automatic re-closure which is counted down after opening of contacts 1-3 (Fig. 1);
Display –a three-digit seven-segment indicator.
1 DESIGNATION
1.1. Designation of the device
The voltage relay PH-260t is designed to protect household and industrial electrical equipment (refrigerators, air
conditioners, washing machines, television, video and audio equipment, etc.) against unacceptable voltage
fluctuations in the mains and the effects of a neutral (zero) conductor breakage.
PH-260t indicates the actual value of the voltage in the mains and the state of the output contacts (the state of
the load).
PH-260t has protection against overheating due to exceeding of the rated current of the load.
PH-260t measures and displays current consumed by the load, active and reactive power and it trips off the load
in case of exceeding of the thresholds set for current and power.
The ranges of the parameters to be measured and controlled are shown in Table 1.
Table 1 –Ranges of the parameters to be measured and controlled
PH-260t may be used as: a voltage-response relay; a consumed power limiting relay; a digital multimeter
(indication of the mains voltage, total, active and reactive power and current consumed).
PH-260t is supplied from the circuit that supplied the load.
1.2Controls and overall dimensions of the PH-260t:
Controls and overall dimensions are shown in Fig. 1.
1.3 Operation conditions
The device is designed for operation in the following conditions:
–Ambient temperature: from minus 35 to +55°C;
–Atmospheric pressure: from 84 to 106.7 kPa;
–Relative air humidity (at temperature of +25°C): 30 … 80%.
If the temperature of the device after transportation or storage differs from the environment temperature at
which it is expected to operate, then before connection to electric mains keep the device under the operating
conditions within two hours (because the device elements may have moisture condensation).
ATTENTION! The device is not intended for operation in the following conditions:
–Significant vibration and shocks;
–High humidity;
–Aggressive environment with content in the air of acids, alkalis, etc., as well as severe contaminations
(grease, oil, dust, etc.).
2 TECHNICAL SPECIFICATIONS
The main technical specifications of the device are shown in Table 2.
Characteristics of the output contacts of the device are shown in Table 3.
The defined parameters are given in Table 4.
Table 2 - The main technical specifications
Rated AC one-phase supply voltage, V
Harmonic composition (unsinusoidality) of the supply voltage
Rated insulation voltage, V