Main Description

Protect your DIN rail systems from damaging power swings with the DIN Rail Adjustable Over/Under Voltage Protector Relay, 40A/63A, 230V. This compact device mounts on standard DIN rails and provides overvoltage, undervoltage, and overcurrent protection to keep sensitive equipment safe and running smoothly.

Key features include dual displays that continuously show voltage and current, and adjustable protection thresholds: overvoltage (130–300V, default 270V), undervoltage (80–210V, default 170V), and overcurrent (1–40A in 40A mode or 1–63A in 63A mode, defaults 40A/63A). It supports fast protection during power interruptions, continuous overcurrent counting, and a multi‑mode display that can switch between voltage, current, frequency, and visible power. In DC applications, DC mode limits certain readings to maintain accurate protection. An energy‑saving mode reduces display brightness when the protector is not active, and an embedded RTOS enhances performance and stability.

Manual/Automatic Recovery lets you re‑enable output after protection manually, while the relay remains in its original state if the protection is turned off. All electronic and mechanical equipment sold by InterCyprus to EU countries is CE certified and carries a two year warranty. At intercyprus.com since 2002 — trusted for quality and reliability.

Benefits & Tips

Use in industrial control panels, drives, switchgear, and power supplies to prevent damage from voltage spikes, brownouts, or short-term faults.
Configure overvoltage/undervoltage and overcurrent thresholds to auto‑protect critical equipment before faults escalate.
Enable energy‑saving mode to reduce power consumption of the display when protection is inactive.

Product specifications

Model number: 2
Power supply: 230VAC 50/60Hz
Max loading power: 1–40A (40A mode, adjustable 1–40A); 1–63A (63A mode, adjustable 1–63A)
Overvoltage default: 270V; adjustable 130–300V
Undervoltage default: 170V; adjustable 80–210V
Overcurrent default: 40A; adjustable 1–40A (40A mode) or 1–63A (63A mode)
Effective voltage range: AC 80–300V, 1% calibratable
Effective current range: AC 0.1–40A (40A mode) or AC 0.1–63A (63A mode), 1% calibratable
Frequency range: 40–70 Hz, 1% calibratable
Screen refresh rate: >1000 Hz
Table update: 0.1–1.05, 1% screen value update
Algorithm: RMS
Return difference: 5V (over/undervoltage)
Timer range: 1–999 s
Action time: 0.1–10.0 s
DC mode: DC 80–300V

Warnings / Reminders

Always set thresholds within the specified ranges to avoid unintended protection trips. The device shows protection when settings are not properly configured.
After protection is triggered, manual re‑enable is required to restore output.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.