Catalogue | Документация

	Single-phase voltage monitoring relays Single-phase voltage monitoring relays RN-101M and RN-111 are designed for protection of single-phase load against unallowable voltage variations in the mains. They have a wide range of adjustments, including power-on time delay for protection of refrigerating, compressor and air-conditioning equipment. All voltage monitoring relays have the resetting ratio (hysteresis) of about 5V. The effective range of our relays is 30-150% of rated voltage. In case of extreme undervoltage and voltage spikes, the relay tripping acceleration is activated. The voltage monitoring relays provide for automatic load energizing after voltage parameters recovery within predetermined time relay. The relays are compact in size and weight. They can be utilized both as independent switching devices and as controls for other switching devices, like magnetic starters.
	Three-phase voltage-sensitive relays Three-phase voltage-sensitive relays are designed for protecting three-phase voltage equipment from impermissible circuit voltage surges, phase breaks, phase imbalance, phase adherence, and phase sequence violation. The relays are effectively utilized for protection of refrigerating, compressor, air-conditioning, and other equipment with electric motor loads. Also used in devices that require continuous monitoring of circuit voltage quality, availability and phase content, e.g. in automatic transfer schemes. All voltage monitoring relays have the resetting ratio (hysteresis) of about 5V. The effective range of our relays is 30-150% of rated voltage. In case of extreme undervoltage and voltage spikes, the relay tripping acceleration is activated. The voltage monitoring relays provide for automatic load energizing after voltage parameters recovery within predetermined time relay. The relays are compact in size and weight. All relays are mounted onto standard DIN-rail. Thу voltage sensitive relays are connected parallel to load and control the magnetic starter coil; thus the use of voltage-sensitive relays is practically independent of the load wattage. The voltage monitoring relay outputs have two groups of independent contacts (one pair of contacts is normally closed, and the other one – normally open), switching load up to 5A.
	Phase selector switch The PEF-301 universal automatic electronic phase switch (single-phase automatic throw-over breaker) is designed to supply an industrial/ appliance single-phase 220V/50Hz load from three-phase four-wire mains 3x380+N in order to maintain uninterrupted power supply of essential single-phase loads and protect them against unallowable voltage variations in the mains. For this purpose, a single-phase load is switched into a three-phase circuit through PEF-301. Depending on voltage presence and voltage quality on phases the PEF-301 will automatically select the optimum phase and promptly switch the single phase load supply to this phase. A phase prioritization is foreseen, i.e. the device restores the supply circuit to the user-selected priority phase after switching to reserve phases and regenerating the voltage on the priority phase.
	Multifunctional clock timing relays The electronic two-channel delay-on-make time relays are designed to switch alternate current and direct current electric circuits with an adjustable time delay.
	Programmable timers with photo relay and voltage monitor The programmable timers with photo relay and voltage monitor are designed to energize/de-energize one or two loads within user-set time intervals based on the circuit voltage and the external photo sensor illuminance. The devices’ output terminals can immediately switch wattage load of up to 3,5 kW (16A). Power supply: 220V/50Hz AC or 24V DC (for REV-302.01 relay).
	Universal Protection Unit for Electric Motors Designed for continuous monitoring of three-phase equipment operation parameters: mains voltage, phase/line RMS currents, wattage, positive and negative sequence voltages and currents, isolation resistance to frame, differential ground leak currents (zero sequence currents), temperature operation modes.
	Current relays and power limiters
	Temperature controllers МСК-301, МСК-102 TP temperature controllers are designed to control freezers, refrigerating counters, monobloc units and other refrigerating retail and industrial equipment.
	Recorder of electric process RPM-16-4-3 microprocessor-based recorder of electrical process data is intended for: measurement of AC voltage RMS value; measurement of AC current RMS value; temperature measurement; receiving data from end devices with standard voltage or current output; storing measured values on an external media of USB-Flash memory drive-type.
	Power adapters PS series DC voltage sources are designed for powering loads with direct stabilized voltage. They can also be utilized as battery chargers.
	Voltage stabilizers A totally new approach to the problem of voltage regulation.

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