B-2188 Voltage Protector Intelligent Switch
The B-2188 Voltage Protector Intelligent Switch is a digital voltage protection relay designed to automatically disconnect power when voltage exceeds or drops below the safe operating range. It provides real-time voltage monitoring, fault detection, and automatic reconnection, ensuring the safety of your home appliances, industrial machinery, and sensitive electronics.
Equipped with a bright LED digital display, the B-2188 shows real-time input voltage and operating status. It supports programmable settings for voltage threshold and recovery time, giving users complete control over protection parameters.
This intelligent switch can be installed easily in distribution panels, switchboards, or direct inline circuits. Its compact and durable design makes it suitable for residential, commercial, and industrial power systems.
Ideal for protecting air conditioners, refrigerators, motors, washing machines, and other high-power devices, the B-2188 ensures maximum electrical safety and prevents costly equipment damage due to power instability.
⚙️ Key Features & Highlights:
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⚡ Automatic Over & Under Voltage Protection — Instantly disconnects unsafe power.
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💡 Digital LED Display — Shows real-time voltage level and status.
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🔁 Auto Reconnect Function — Restores power after voltage stabilizes.
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🔧 Adjustable Settings — Set your preferred cut-off and delay time.
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🔌 Wide Voltage Range — Compatible with 110V–250V AC systems.
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🏠 Appliance Protection — Ideal for refrigerators, TVs, ACs, and more.
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🔒 Compact & Reliable Design — Long service life and stable performance.
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🧩 Works seamlessly with Power Modules and Automation Components.
⚙️ Technical Specifications:
| Parameter | Specification |
|---|---|
| Model | B-2188 Voltage Protector Intelligent Switch |
| Operating Voltage | AC 110V–250V |
| Current Rating | 40A / 63A (depending on version) |
| Overvoltage Cut-off | Adjustable (typically > 260V) |
| Undervoltage Cut-off | Adjustable (typically < 170V) |
| Delay Time | Adjustable (5–999 seconds) |
| Display | Digital LED voltage readout |
| Mounting Type | DIN rail mounting |
| Material | Flame-retardant ABS housing |
| Frequency | 50/60Hz |
| Dimensions | 90 × 36 × 65 mm |
| Protection Type | Over-voltage / Under-voltage / Delay start |
| Operating Temperature | -20°C to +70°C |
⚙️ Applications:
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🏠 Home Appliances: Air conditioners, refrigerators, washing machines, and TVs.
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🏭 Industrial Equipment: Motors, pumps, compressors, and automation machines.
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🏢 Commercial Buildings: Electrical panels, offices, and laboratories.
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⚙️ Power Distribution Systems: Over-voltage/under-voltage control and safety protection.
⚙️ Precautions:
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Always connect the protector according to wiring instructions.
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Do not exceed the rated current capacity.
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Avoid exposure to moisture or direct sunlight.
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Periodically check voltage calibration and ensure secure connections.
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Use proper fuses or circuit breakers for enhanced safety.
▶️ YouTube Tutorial Video:
Watch: B-2188 Voltage Protector Setup & Working Demo
🔗 Internal Links:
🔹 Product Summary:
The B-2188 Voltage Protector Intelligent Switch offers advanced automatic voltage protection with digital control and real-time display. Perfect for home or industrial systems, it automatically cuts power during unsafe voltage conditions and restores it once normal levels return — ensuring the long life and safety of your electronics.
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