Power consumption limiter OM-630 three-phase direct measurement up to 50kW

Three-phase power consumption control

The OM-630 power limiter is a device designed for continuous monitoring of power consumption by receivers in three-phase networks. Its task is to disconnect the power supply in the event of exceeding the set threshold, protecting the installation from overload. This is an ideal solution for both installers and end-users who want to avoid unplanned shutdowns and ensure safe operation of devices.

Application and functionality

OM-630 finds wide application in residential, commercial and industrial buildings where there is a need to monitor and limit power consumption. The device offers direct measurement up to 50 kW, allowing for precise load control. Additionally, the built-in voltage relay function protects the installation against the effects of voltage drops or increases. This limiter not only protects against overload, but also monitors phase asymmetry, the presence of phases and their sequence.

Key features and benefits

• Three-phase power measurement: Provides accurate power measurement in three-phase systems.
• Adjustable power threshold: Allows you to adjust the activation threshold to the specific needs of the installation (5-50 kW).
• Voltage relay function: Protects against damage caused by unstable power supply voltage (range 160-260 V).
• Time lock: Prevents frequent, unnecessary power disconnections in the event of temporary threshold exceedances.
• Overload indication: Informs about exceeding the permissible power value.
• DIN rail mounting: Facilitates quick and easy installation in the switchgear (on a 35 mm rail).
• Compact dimensions: Occupies only 6 modules (105 mm), allowing you to save space in the switchgear cabinet.

The OM-630 limiter has three calculation variants of power, adapted to different types of loads. Short-circuit protection further increases safety. The device is made of high-quality materials, which guarantees its reliability and long service life.

Technical specifications

• Supply voltage: 3×(50÷450 V)+N
• Maximum AC-1 load current: 2 x 8 A
• Actuator: 2 × relay (contact configuration: 2 × NO/NC)
• Voltage measurement accuracy: 2% (50÷300 V)
• Current measurement accuracy: 3% (3÷100 A)
• Range of Toff activation time adjustment: 1÷240 s
• Range of TON return time adjustment: 2 ÷3600 s
• Operating temperature: -25 ÷ 50 °C
• Protection class: IP20

Thanks to its functionality and reliability, the OM-630 power limiter is a comprehensive solution for people looking for an effective way to control energy consumption and protect the electrical installation.