OBS7-6-VA/3P+N/100A

Three Phase Digital Voltage/Current Protector with Lighting Logo

As an innovative new-generation 3-Phase Over-Voltage and Under-Voltage Protector, this advanced electrical safety device is engineered to automatically cut off the power supply upon detecting abnormal voltage levels.

Voltage range	80-300V
Current	100A
Supply terminals	N,L

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Application

Description

Technical Variables

Other

Product Introduction

Once the voltage reverts to a normal range, it restores power without human intervention—ensuring non-stop protection for electrical equipment and enhancing user safety. What’s more, this latest model supports custom logo integration on its display screen , adding a personalized touch for branding needs.

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 100A.

Technical Specifications

Voltage range	80-300V
Current	100A
Supply terminals	N,L
Rated supply voltage	AC 220V
Rated frequency	50/60Hz
>U setting range	130-300V
	80-210V
Voltage hysteresis	5V
Overvoltage trip delay	0.5s
Voltage accuracy	<1%
Max.operating phase voltage	350V
Max.operating current	100A
Altitude	≤200m
Ambient temperature	-25°℃~+50℃
Permissable relative humidity	≤50% at 40℃（without condensation)
Storage temperature	-25℃~+55℃

OBS7-6-VA/3P+N/63A

Three Phase Digital Voltage/Current Protector with Lighting Logo

OBS7-6-VA/3P+N/80A

Three Phase Digital Voltage/Current Protector with Lighting Logo

OBS7-5-VA/1P+N/40A

Best selling Digital voltage/current protector 1P+N

Let's Talk

We provide customised solutions for professional circuit protection.

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 100A.

OBS7-6-VA/3P+N/63A

Three Phase Digital Voltage/Current Protector with Lighting Logo

OBS7-6-VA/3P+N/80A

Three Phase Digital Voltage/Current Protector with Lighting Logo

OBS7-5-VA/1P+N/40A

Best selling Digital voltage/current protector 1P+N

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 100A.