According to official TOMZN documentation and the user manual, the TOVPD1-60-EC packs a comprehensive suite of protective functionalities into a single module:
This unit is great for protecting refrigerators and AC units. Remember to set the Delay Time (d-t) to at least 3 minutes (180 seconds) for AC compressors to allow pressure to equalize.
MAIN SUPPLY (Grid / Source) | | Line (L) Neutral (N) | | +------v--------------v------+ | [IN L] [IN N] | | | | TOMZN TOVPD1-60-EC | | | | [OUT L] [OUT N] | +------|--------------|------+ | | +--------------+ | ELECTRICAL LOAD (Appliances / House) Step-by-Step Wiring Connections
Understanding the operational limits of your protective relay prevents permanent hardware damage. Specification Parameter Value / Range Default Factory Setting 230 VAC ± 20%, 50/60 Hz Max Loading Power (Current) 1 A to 63 A (Adjustable) 60 A / 63 A Over-Voltage Protection Range 230 V – 300 V (or OFF) Over-Voltage Recovery Range 225 V – 295 V Under-Voltage Protection Range 140 V – 210 V (or OFF) Under-Voltage Recovery Range 145 V – 215 V Over-Current Adjustment Range 1 A – 63 A 40 A / 60 A Action Delay Time (Trip Time) 0.1 s – 30 s Power-On / Recovery Delay Time 1 s – 500 s 10 s (Power-on) / 30 s (Recovery) Internal Power Consumption Mechanical & Electrical Life ≥ 100,000 Cycles Physical Installation & Safety Rules tomzn tovpd1-60-ec manual
Over-voltage (230V–300V), Under-voltage (140V–210V), Over-current (1–63A).
The display shows the over-voltage threshold symbol (often indicated by a high voltage value like 270 ). Use or ▼ to change the limit. Press SET to save and move to the next option. 2. Under-Voltage Protection Value
I can do that — I’ll assume you want a concise analytical essay summarizing and evaluating the TOMZN TOVPD1-60-EC manual (technical product manual). I’ll cover purpose, key features/specs, operating procedures, safety/maintenance, common issues/troubleshooting, and an overall evaluation with recommendations. If that’s what you want, I’ll produce a ~700–900 word essay. Proceed? According to official TOMZN documentation and the user
The device can be set to trip on over‑voltage, under‑voltage, over‑current, or any combination of these conditions. Each mode has its own independent adjustable threshold and time delay.
After a fault clears, the relay will wait for a user‑set recovery delay before reconnecting the load (default 30 s). This helps avoid rapid on‑off cycling when the power supply is fluctuating.
Adjustable from 140V to 210V (Default: 170V) Power Consumption: ≤ 2W Electrical and Mechanical Life: ≥ 100,000 cycles Installation: 35mm Standard DIN Rail Wiring and Installation Guide Press SET to save and move to the next option
Connect the incoming live wire (typically brown or red).
What major (like ACs or pumps) are running on this circuit?
Once voltage or current returns to safe, preset parameters, the internal countdown timer activates. When the countdown reaches zero, the relay automatically closes, restoring power to the circuit. Troubleshooting Guide Potential Cause No input power or wrong wiring.