Best selling Digital voltage/current protector 1P+N

OBS7-5 two display white OBCH in the middle Best selling Digital voltage/current protector 1P+N

OBS7-5 two display white OBCH Best selling Digital voltage/current protector 1P+N

OBS7-5 two display white neutral Best selling Digital voltage/current protector 1P+N

OBS7-5 Red OBCH Best selling Digital voltage/current protector 1P+N

OBS7-5-VA/1P+N/63A

Best selling Digital voltage/current protector 1P+N

A high-end electrical safety device, the Household Over-Voltage and Under-Voltage Protector is built to turn off power automatically whenever voltage levels are detected to be abnormal.

Specifications:

OBS7-5-VA/1P+N/40A OBS7-5-VA/1P+N/63A OBS7-5-V/1P+N/40A OBS7-5-V/1P+N/63A OBS7-5-A/1P+N/40A OBS7-5-A/1P+N/63A

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Application

Description

Technical Variables

Other

Product Introduction

Once the voltage stabilizes and returns to the normal range, it restores power without manual engagement, providing uninterrupted protection for household appliances and strengthening user safety.

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 40A.

Technical Specifications

Voltage range	80-300V
Current	63A
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	63A
Altitude	≤2000m
Ambient temperature	－25℃~+50℃
Permissable relative humidity	≤50% at 40℃（without condensation)
Storage temperature	-25℃~+55℃

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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 40A.

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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 40A.