Monitoring relays current series AL

Current relay AL-1 is intended for use in circuits of automation and protection of power systems against impermissible increase of the electric current. Permissible deviation of the operational supply voltage in the range from 0.8 to 1.1 nominal. Time opening closing relay contact upon reduction of the measured current: - 1.2 CR to zero does not exceed 0,06; - from 3.0 CR to zero does not exceed 0.1 C. The relay does not give false positives when removed, the feed and short-term (up to 50ms) the disappearance of the supply voltage. The value of the measured current, filed on relay may be in the range from 0 to 80% of setpoint actuation. Relay AL-1 provide switching of electrical loads at a current not exceeding 2 a and the voltage of AC or DC 24 to 250 V power: in the DC circuit 60 W at t≤0,005 with not more than 30 W at t≤0.02 s; - in circuit of AC 300 VA at cosφ ≤ 0,5. Details see: http://relsis.ua/relsis/tree/Products/rele_toka/tehnicheskoe_opisanie_al-1.htm Relay current excavation protection of AL-4 Current relay AL-4 - current relay ground protection is not slow, highly sensitive one current circuit is used with a current transformer zero-sequence circuits protection against earth fault generators, motors and lines with low current ground fault and other devices of relay protection, emergency response and industrial automation. Details see: http://relsis.ua/relsis/tree/Products/rele_toka/tehnicheskoe_opisanie_al-4.htm Relay current excavation protection of AL-4-1, AL-4-2 Relay AL-4-1 is a complete analog relays AL-4 with adjustable delay. Relay AL-4-2 is a complete analog relay RTZ-51. This nezamechennoe high sensitivity relay with one current circuit and operative power. Used with current transformer zero-sequence circuits protection circuits, and other protection circuits, emergency and industrial automation. The relay should be installed in closed rooms where the temperature can vary from minus 40 to plus 55 ° C and relative humidity 80% at 25 OC. The environment should be non-explosive and not to contain dust and gases destroying the isolation relay. The vibration of the fixing relay should be no more than 3g at frequencies up to 15 Hz and not more than 1 g in the frequency range up to 100 Hz. Details see: http://relsis.ua/relsis/tree/Products/rele_toka/tehnicheskoe_opisanie_al-4-1_al-4-2.htm