Modular | digital | multifunctional voltage | current control | protection relay | 63A | 230V | DIN | ESTVPS1-63S

Technical Specifications

Type: multifunction protection relay with energy measurement
Rated current: up to 63A
Operating voltage: 140–300V AC
Frequency: 50/60Hz
Mounting: DIN rail (modular)
Display: color (multi-parameter display)

Protection functions:

Overvoltage protection: 230–300V (adjustable, default 270V)
Undervoltage protection: 140–210V (adjustable, default 170V)
Current protection: 1–63A (adjustable)
Response time: 0.1–10 s
Auto reset: 1–500 s (default 30 s)

Measurement functions:

Voltage (V)
Current (A)
Energy (kWh)
Power (W)
Apparent power
Power factor (PF)
Frequency (Hz)
Temperature (°C / °F)

Other parameters:

Energy storage with memory (kWh retained during power loss)
Calibration functions (voltage, current, frequency, power)
Protection enable/disable function
Energy-saving mode
Indications: faults, ON/OFF status, protection activity

Functions

One device performs the functions of three devices: protection relay, energy meter, and network analyzer

You can precisely set: voltage limits, current limits, response times, auto-restart time

Real-time monitoring: the color display allows viewing all key parameters in one place

Automatic fault protection: upon detecting overvoltage, undervoltage, or overload, the device disconnects the load and protects equipment

Energy consumption control: stores kWh data even during power outages – useful for energy analysis

Application

For household users:
Used in home electrical panels to protect against voltage fluctuations, safeguarding appliances such as refrigerators, boilers, and other devices. Helps avoid costly damage and monitor real energy consumption.

For electricians:
Universal DIN rail component for panel upgrades and integration of protection and measurement in one module. Saves installation time and space.

For engineers / automation specialists:
Suitable for network analysis, load control, system protection from unstable grids, and energy monitoring. Ideal for smaller projects where a separate analyzer is not required.

For industrial and commercial use:
Workshops, production lines, server rooms, commercial facilities

Advantages

3-in-1 functionality – protection + measurement + analysis
Wide adjustment range
Color display with extensive data
Automatic fault protection
Energy memory (kWh)
DIN mounting – easy integration
Suitable for both residential and professional use
Protects expensive equipment

Disadvantages

No remote control (WiFi / Modbus)
Requires configuration before use
Single-phase solution (not for three-phase systems)

Frequently Asked Questions (FAQ)

1. Can this device fully protect a home from voltage spikes?
Yes, it automatically disconnects the load when dangerous voltage or current is detected, protecting equipment from damage.

2. Can I monitor energy consumption?
Yes, the device displays kWh and retains data even during power outages.

3. Is it suitable for standard electrical panels?
Yes, it is DIN rail mounted and compatible with most panels.

4. Can it be used with automation systems?
Yes, but it is a standalone device – it has no external communication interfaces, though it works perfectly as a protection and control element in systems.