Din Rail Voltage & Current Protector 40A 63A 220V Surge Relay
Din Rail Voltage & Current Protector 40A 63A 220V Surge Relay
CKCTINNER Din Rail Adjustable Voltage & Current Protector – 40A / 63A, 220V/230V
Keep your home or commercial electrical circuits safe with the CKCTINNER YHVPD1 Din Rail Voltage & Current Protection Relay. This smart dual LED display device continuously monitors incoming voltage and current, automatically disconnecting the load when unsafe conditions are detected — and reconnecting once levels return to normal. Available in 40A and 63A models, it fits standard 35mm DIN rail enclosures for fast, professional installation.
Key Protection Functions
- Over-Voltage Protection: Trips when voltage exceeds your set threshold (230V–300V, default 270V) and auto-recovers once voltage stabilises
- Under-Voltage Protection: Disconnects load when voltage drops below the set range (140V–210V, default 170V) to safeguard sensitive equipment
- Over-Current Protection: Adjustable current trip point (1–40A or 1–63A depending on model) with configurable action and recovery delay times
- Automatic Recovery: Reconnects load automatically after a programmable recovery delay — no manual reset required
- Dual LED Display: Real-time voltage and current readings at a glance
- Voltage Calibration: Fine-tune displayed voltage by ±10% to match your local supply
- Fault Inquiry & Factory Reset: Review fault history or restore factory defaults with simple button-hold sequences
Full Technical Specifications
| Models | YHVPD1-40 / YHVPD1-63 / YHVPD1-80 |
| Power Supply | 230V AC, 50/60 Hz |
| Max Load Current | 1–40A (default 40A) / 1–63A (default 63A) — Adjustable |
| Over-Voltage Trip Range | 230V–300V / OFF (default: 270V) |
| Over-Voltage Recovery Range | 225V–295V (default: 250V) |
| Under-Voltage Trip Range | 140V–210V / OFF (default: 170V) |
| Under-Voltage Recovery Range | 145V–215V (default: 190V) |
| Over/Under-Voltage Action Time | 1s–60s (default: 1s) |
| Over/Under-Voltage Recovery Delay | 3s–300s (default: 30s) |
| Over-Current Action Time | 1s–60s (default: 1s) |
| Over-Current Recovery Delay | 1s–500s (default: 30s) |
| Power-On Delay | 1s–500s (default: 10s) |
| Power Consumption | <2W |
| Mechanical Life | 100,000 operations |
| Installation | Standard 35mm DIN Rail |
| Rated Voltage | 220V / 230V |
| Country of Origin | Made in Mainland China |
Why Choose the CKCTINNER Voltage Protector?
- ✅ Fully adjustable thresholds for over-voltage, under-voltage, and over-current — suits a wide range of installations
- ✅ Dual LED readout for instant on-site monitoring of both voltage and current
- ✅ Compact moulded-case design snaps directly onto standard 35mm DIN rails
- ✅ Auto-recovery means zero manual intervention after a trip event
- ✅ Ultra-low standby consumption (<2W) and long 100,000-cycle mechanical life
- ✅ Ideal for residential distribution boards, workshops, industrial panels, and commercial fit-outs
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Frequently Asked Questions
Q: What is the difference between the 40A and 63A models of this voltage protector?
A: The primary difference is the maximum load current rating. The YHVPD1-40 supports a maximum adjustable load of 1–40A (default 40A), while the YHVPD1-63 supports 1–63A (default 63A). Both models offer identical over-voltage, under-voltage, and over-current protection functions with the same adjustable threshold ranges. Choose based on the maximum current draw of the circuit or equipment you need to protect.
Q: Will this voltage protector reconnect automatically after it trips?
A: Yes. The CKCTINNER YHVPD1 features fully automatic recovery. Once the voltage or current returns to within the safe thresholds you have set, the relay will automatically reconnect the load after the programmed recovery delay time (3s–300s for voltage events; 1s–500s for over-current events). No manual reset is required, making it ideal for unattended or remote installations.
Q: How is this protector installed?
A: The unit is designed for tool-free mounting on a standard 35mm DIN rail, which is the most common rail size found in residential and commercial distribution boards and electrical enclosures. Simply snap it onto the rail, wire the input and output terminals according to the wiring diagram, and configure your desired thresholds using the front panel buttons and dual LED display.
Q: Can I adjust the voltage and current trip thresholds after installation?
A: Absolutely. All protection thresholds are fully adjustable via the front panel UP/DOWN buttons — including over-voltage trip voltage, under-voltage trip voltage, over-current trip level, action delay times, and recovery delay times. You can also calibrate the voltage display by ±10% to match your local supply, and restore all factory default settings by holding the DOWN button for more than 12 seconds.