The SVP-912 40A Voltage and Current Protection Device is a DIN rail-mounted electrical protection module designed to protect single-phase electrical installations against overvoltage, undervoltage, and overcurrent conditions.
Operating on a 230V AC single-phase supply, the device continuously monitors electrical conditions and automatically disconnects the connected load when voltage or current exceeds the configured protection limits.
Once the electrical conditions return to the acceptable range, the protector automatically reconnects the power supply after the configured recovery delay.
Featuring a digital voltage display, adjustable protection thresholds, and automatic recovery, the SVP-912 is suitable for residential electrical panels, commercial installations, and equipment protection.
Key Features
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Overvoltage Protection: Automatically disconnects power when the voltage exceeds the configured limit.
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Undervoltage Protection: Protects connected equipment against excessively low voltage.
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Overcurrent Protection: Disconnects the load when current exceeds the configured threshold.
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40A Rated Current: Designed for compatible single-phase electrical circuits.
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Digital Voltage Display: Displays the monitored supply voltage.
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Adjustable Protection Settings: Configure voltage and current protection thresholds.
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Automatic Power Recovery: Restores power when electrical conditions return to normal.
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Adjustable Recovery Delay: Helps prevent rapid reconnection after voltage fluctuations.
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DIN Rail Installation: Designed for mounting inside electrical distribution panels.
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Single-Phase Operation: Suitable for residential and commercial 230V AC systems.
Technical Specifications
| Parameter |
Specification |
| Model |
SVP-912 |
| Product Type |
Voltage and Current Protection Device |
| Rated Voltage |
230V AC |
| Rated Current |
40A |
| Electrical System |
Single-Phase |
| Protection Functions |
Overvoltage, Undervoltage, Overcurrent |
| Voltage Monitoring |
Yes |
| Digital Display |
LED Voltage Display |
| Overvoltage Threshold |
Adjustable |
| Undervoltage Threshold |
Adjustable |
| Overcurrent Threshold |
Adjustable |
| Recovery Voltage Settings |
Adjustable |
| Protection Delay |
Adjustable |
| Recovery Delay |
Adjustable |
| Automatic Reconnection |
Yes |
| Mounting Type |
DIN Rail |
| Installation Location |
Electrical Distribution Panel |
Protection Functions
Overvoltage Protection
The device continuously monitors the incoming voltage.
If the voltage exceeds the configured overvoltage threshold, the protector automatically disconnects the load to reduce the risk of electrical damage.
Undervoltage Protection
When the supply voltage drops below the configured minimum value, the device disconnects the connected equipment.
This function is useful for protecting appliances and electrical systems from abnormal low-voltage conditions.
Overcurrent Protection
The protector monitors load current and disconnects the circuit when the configured overcurrent threshold is exceeded.
Automatic Recovery
Once the voltage and current return to acceptable levels, the device automatically reconnects the load after the configured recovery delay.
Adjustable Protection Settings
The SVP-912 supports configuration of:
- Overvoltage protection threshold
- Overvoltage recovery threshold
- Overvoltage protection delay
- Undervoltage protection threshold
- Undervoltage recovery threshold
- Undervoltage protection delay
- Overcurrent protection threshold
- Fault recovery delay
Applications
- Residential Electrical Distribution Panels
- Home Appliance Protection
- Commercial Electrical Installations
- Voltage Fluctuation Protection
- Water Pump Electrical Protection
- Air Conditioning Systems
- Industrial Control Panels
- Single-Phase Equipment Protection
- Electrical Automation Systems
Installation and Connection
The device is designed for installation on a standard DIN rail inside an electrical distribution board.
Terminal Identification:
| Terminal |
Function |
| L IN |
Incoming Live / Phase |
| N IN |
Incoming Neutral |
| L OUT |
Protected Live Output |
| N OUT |
Neutral Output |
The terminals must be connected according to the markings and wiring diagram printed on the actual device.
Important Notes
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230V AC mains voltage: Installation must be performed by a qualified electrician.
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Maximum rated current: 40A. The connected load must remain within the device's rated capacity.
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Circuit protection: This device does not replace an appropriately rated circuit breaker, fuse, or residual-current protection device (RCD).
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Automatic reconnection: Connected equipment may restart automatically when power returns.
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Adjustable settings: Protection thresholds and delays should be configured according to the electrical installation and equipment requirements.
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Motor loads: Motors and other inductive loads may require additional protection and appropriately rated switching equipment.
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Installation: Use a suitable electrical enclosure and follow local electrical regulations.
Package Includes
