OM-110

Single phase power limiter OM-110 (hereinafter OM-110).

OM-110 is designed for the continuous control over activeor total power capacity for the single phase loads. Measured range is from 0 to 20 kW or from 0 to 20 kVA. Thefunction of OM-110 is to cut off the power load in case of exceeding the preset threshold for maximal level ofpermitted power load consumed by the user (with user defined time delay) and automatic autoreclosing withadjusted time delay or prohibited restart. User sets the threshold values for power, tripping time delay andautoreclosing time delay using the knobs and DIP switches on the front panel of the OM-110.All the measurements are done with a help of built-in current sensor in the case of the device without anyinterference to the controlled circuits.

Device can be applied as:

• Digital wattmeter (to measure active or total power capacity);
• Relay which limits the consumed power as per the user defined settings;

OM-110 allows to control the level of power consumption and the state of the load with help of LEDindicators located on the front panel. OM-110 doesn’t require any additional power supply sources and ispowered by the controlled circuit from the input terminals.

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Basic technical parameters and characteristics:

• Rated power supply voltage, V: 220
• Operational voltage range, V* from: 130 to 300
• Rated voltage frequency, Hz: 47– 53
• Measurement range:
• for active power P, kW: 0 – 20
• for total power S, kVA: 0 – 20
• Power measurement accuracy is not less than: 2.5%
• Adjustable range for setting maximal power:
• k=1; Wmax, kW( kVA): 0 – 2.0
• Absolute deviation for power measurement not more than, kW (kVA): 0 ± 0,05
• k=10; Wmax, kW(kVA): 0 – 20
• Absolute deviation for current measurement not more than, kW, kVA: 0 ± 0,5
• Adjustable time range for autoreclosing time delay - ton, sec: 0 – 900, ∞
• Adjustable time range for tripping time delay – toff, sec: 0 – 300
• Readiness time after turn ON, not more than, sec**: 0,8
• Power consumption (under the load), not more than, VA: 3,0
• Maximal commutation current on the output terminals at cosφ=1, А: 8
• Commutation lifetime for the output contacts:
• under the load of 5А, not less than: 100 000
• under the load of 1A, not less than: 1 000 000
• Protection class:
• device plastic enclosure: IP40
• connection terminals: IP20
• Climatic performance: УХЛ4
• Operational temperature range, °С: From - 25 to +55
• Storage temperature range, °С: From - 45 to +70
• Weight, kg, not more than: 0,200
• Dimensions (3 way standard DIN module thickness for DIN rail mounting), mm: 50 х 90 х 58

* To increase operational range to low voltage ОМ-110 has function to disable LED digitalindicator if voltage level gets lower than 130V. If voltage level is less than 110V then OM-110automatically opens its output terminals to initial cold state position and thus tunrs OFF.

** Reaction time on turn ON is not more than 2 seconds. This time includes deviceselftesting, turning ON the power load, measuring power consumption and tripping thepower load OFF in case fault situation is detected.

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