Relé de sobretensão/subtensão Schneider EZ9C1263 Série Easy9

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   Relé de sobretensão/subtensão Schneider EZ9C1263 Série Easy9

   Interpretação do modelo

1. Parâmetros técnicos principais

III. Principais recursos funcionais

1. Dual Overvoltage/Undervoltage Protection

Overvoltage Protection: Automatically disconnects the circuit when voltage exceeds 275V (±10V) to prevent electrical appliances from being damaged by overvoltage.

Proteção contra subtensão: Automatically disconnects the circuit when voltage is lower than 170V (±10V) to avoid burnout of motors and other equipment due to undervoltage overload.

Graded Time Delay: Automatically adjusts tripping time according to the degree of overvoltage/undervoltage to improve protection accuracy.

2. Automatic Reclosing Function

Automatically recloses after voltage returns to normal without manual intervention.

Maximum reclosing attempt limit (3 vezes) to prevent frequent reclosing when faults persist.

Reclosing interval is about 1 minute to ensure circuit stability before reconnection.

3. Safety Design Highlights

Fault Lockout: Automatically locks in the open position after 3 failed reclosing attempts, requiring manual reset.

Test Button: Manually tests whether the protection function is normal to ensure equipment reliability.

Arc-free Design: No arc ejection during breaking, improving operational safety.

Cooperative Operation with MCB: Must be installed downstream of MCB to utilize MCB for short-circuit and overload protection.

1. Installation and Application Key Points
2. Requisitos de instalação

Local de instalação: Must be installed downstream of the miniature circuit breaker (MCB) as a secondary protection device.

Método de fiação: Strictly distinguish phase line (eu) and neutral line (N), with clear markings on wiring terminals.

Direção de instalação: Vertically installed on 35mm standard DIN rail, with wiring available at both upper and lower ends.

Condições Ambientais: Install in a well-ventilated and dry place, evitando umidade, dust and corrosive gases.

2. Cenários de aplicação

3. Recommended Supporting Equipment

MCB Matching: It is recommended to use Schneider Easy9 series EZ9F53263 (2P 63A C-curve, capacidade de interrupção 6kA).

Distribution Box: Easy9 series compact distribution box with IP43 protection class, suitable for rail mounting.

Wiring Terminals: Use copper lugs for connection to ensure good contact and reduce heating risk.

1. Seleção e Soluções Alternativas
2. Selection Key Points

Confirm circuit type: Only applicable to 230VAC single-phase circuits; other models should be selected for three-phase circuits.

Match load current: Rated current ≥ maximum load current; 63A is recommended for residential main protection.

Use with MCB: Must be used in conjunction with MCB and cannot be used alone as a circuit protection device.

2. Referência de modelo alternativo

1. Fault Diagnosis and Maintenance

Resumo

Schneider EZ9C1263 is an overvoltage/undervoltage relay specially designed for 230VAC single-phase circuits. Its core advantage lies in the automatic reclosing function, which can automatically restore power supply after voltage returns to normal, improving the convenience of electricity use. As a member of the Easy9 series, its compact design, DIN rail mounting and high reliability make it an ideal choice for protecting precision electronic equipment in residential and small-scale commercial buildings. It should be noted that this product is not a miniature circuit breaker and must be used in conjunction with MCB to achieve complete short-circuit, overload and voltage protection functions.