Modular voltage control relay | 1-phase | 8A | 230VAC | 165-215V | mechanical | DIN rail

Technical Specifications

Type: Single-phase voltage monitoring relay
Supply terminals: A1, A2
Rated voltage: 230V AC
Frequency: 50/60 Hz
Operating voltage range: 150–275V AC
Voltage setting range: 165–215V
Hysteresis: ±3% of the set value
Measurement method: True RMS
Measurement accuracy: <1%
Trip delay: 0.1–10 s
Delay accuracy: ±5% + 0.1 s
Output contacts: 11, 12, 14
Contact type: 1C/O (1 changeover contact)
Rated current: 8A (AC1)
Contact load (AC-15): 2A
Insulation voltage: 250V
Max. fuse: RT36-00, 5A
Mounting: DIN rail (1 module)
Protection class: IP20
Pollution degree: 3
Electrical life: 100,000 cycles
Mechanical life: 1,000,000 cycles
Operating temperature: -25°C to +50°C
Storage temperature: -25°C to +55°C
Humidity: ≤50% (non-condensing)
Altitude: ≤2000 m
Wire cross-section: 0.5–1 mm²

Functions

Real-time voltage monitoring – continuous network supervision
True RMS measurement – accurate readings even with distorted sine waves
Undervoltage protection – protects equipment from damage
Adjustable settings: voltage threshold (potentiometer); trip delay
LED indication: relay status indication; fault (undervoltage) indication
Automatic reset – system restores when voltage returns to normal
Compact design – only 1 DIN module

Applications

For residential users: Protection of home electrical networks from voltage drops; Safe operation of sensitive devices (boilers, refrigerators, electronics)

For engineers / designers: Reliable solution for ensuring electrical network stability; Easily integrated into automation systems; Accurate measurements suitable for critical systems

For electricians/installers: Easy DIN rail mounting; Clear adjustment controls (knobs); Universal application in various installations

For industry and commercial use: Protection of electrical equipment from voltage fluctuations; Ensuring production line stability; Used in control panels

Advantages

High measurement accuracy (≤1%)
True RMS technology
Adjustable parameters
Automatic reset
Compact (1 DIN module)
Easy installation and operation
Clear LED indication
Wide operating voltage range

Disadvantages

Protection only against undervoltage (no full overvoltage protection in this model)
IP20 – not suitable for direct outdoor use
Limited contact load (recommended to use with a contactor for higher loads)