OBS7-4 Dual Display Blue and Green Signage OBCH Digital voltage/current protector

OBS7-4 Dual Display Blue and Green Signage Neutral Digital voltage/current protector

OBS7-4-VA/1P+N

Single phase Digital voltage/current protector 40A 63A

A state-of-the-art electrical safety device, the Household Over-Voltage and Under-Voltage Protector is built to automatically turn off power when it detects voltage that falls outside the normal range.

Specifications:

OBS7-4-VA/1P+N OBS7-4-VAM/1P+N

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Application

Description

Technical Variables

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Product Introduction

Once the voltage gets back to a stable, normal level, it restores power without manual involvement, ensuring household appliances are protected continuously and user safety is strengthened.

Product structure and performance characteristics

Voltage Monitoring: Real-time detection of voltage anomalies. If the voltage exceeds or falls below predefined thresholds (e.g., over-voltage: AC270±5V; under-voltage: AC170±5V), the protector instantly cuts off power to prevent damage to connected devices.

Auto-Reclosing Function: Automatically resumes power supply after a brief delay (e.g., 30±10 seconds) when voltage stabilizes, eliminating the need for manual resetting.

Rapid Response: Acts within ≤1 second to safeguard sensitive electronics (e.g., TVs, refrigerators) from voltage surges or drops.

Durable Design: Built with magnetically held relays and micro-processor technology for low power consumption (≤2W) and high mechanical longevity (≥100,000 cycles).

Wide Application: Ideal for single-phase AC 230V systems commonly used in homes and commercial settings, with a load capacity of up to 63A.

Technical Specifications

Voltage range	80-300V
Current	40A/63A

OBS7-1-VA/1P+N

Digital voltage/current protector 1P+N

OBS7-2-VA/1P+N

Digital voltage/current protector 1P+N

OBS5-V/1P+N

Adjustable Digital voltage protector

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We provide customised solutions for professional circuit protection.

Specifications:

Voltage Monitoring: Real-time detection of voltage anomalies. If the voltage exceeds or falls below predefined thresholds (e.g., over-voltage: AC270±5V; under-voltage: AC170±5V), the protector instantly cuts off power to prevent damage to connected devices.

​Auto-Reclosing Function: Automatically resumes power supply after a brief delay (e.g., 30±10 seconds) when voltage stabilizes, eliminating the need for manual resetting.

​Rapid Response: Acts within ≤1 second to safeguard sensitive electronics (e.g., TVs, refrigerators) from voltage surges or drops.

​Durable Design: Built with magnetically held relays and micro-processor technology for low power consumption (≤2W) and high mechanical longevity (≥100,000 cycles).

​Wide Application: Ideal for single-phase AC 230V systems commonly used in homes and commercial settings, with a load capacity of up to 63A.

OBS7-1-VA/1P+N

Digital voltage/current protector 1P+N

OBS7-2-VA/1P+N

Digital voltage/current protector 1P+N

OBS5-V/1P+N

Adjustable Digital voltage protector

Let's Talk

Auto-Reclosing Function: Automatically resumes power supply after a brief delay (e.g., 30±10 seconds) when voltage stabilizes, eliminating the need for manual resetting.

Rapid Response: Acts within ≤1 second to safeguard sensitive electronics (e.g., TVs, refrigerators) from voltage surges or drops.

Durable Design: Built with magnetically held relays and micro-processor technology for low power consumption (≤2W) and high mechanical longevity (≥100,000 cycles).

Wide Application: Ideal for single-phase AC 230V systems commonly used in homes and commercial settings, with a load capacity of up to 63A.