PRS-789 Auxiliary Relay
Le relais auxiliaire série PRS-789 coopère principalement avec le relais de protection principal pour assurer la supervision du circuit de déclenchement,
de l'alimentation positive à l'alimentation négative lorsque le disjoncteur est en état d'ouverture ou de fermeture,
ainsi que l'activation de déclenchement et de fermeture avec bobine de déclenchement et de fermeture à auto-adaptation.
relais de courant ou de verrouillage avec fonction bistable.
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Item
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Parameter
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Performance
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High levels of reliability and dependability
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IP degree
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Reliable operation over a wide temperature range
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Power supply
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Rated auxiliary voltage:220V,125V,110V.
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Type
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Function
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Application
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PRS-789-HA
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Three phase,Trip circuit supervision
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Mostly use for three-pole operation circuit breaker with one trip coil and one close coil
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PRS-789-HB
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Segregated Phase trip circuit supervision
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Mostly use for Single-pole operation circuit breaker
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PRS-789-HD
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Lockout relay,repeat relay,high burden trip contact
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Mostly use for lock-out close circuit after CB trip and initiating trip circuit
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PRS-789-HE
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Bi-stable relay,AC voltage switching relay
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Mostly use for signal selection or switching control
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PRS-789-HF
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One initial contact,high-speed trip relay,close relay
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Mostly use for three-pole operation circuit breaker
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PRS-789-HG
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Two initial contacts,high-speed trip relay,close relay
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Mostly use for Single-pole operation circuit breaker
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京公网安备 11010802043282号