---
product_id: 138817612
title: "novatek electro Three Phase Voltage Monitoring Relay RNPP-312 MCB(4)"
brand: "novatek electro"
price: "R681"
currency: ZAR
in_stock: true
url: https://www.desertcart.co.za/products/138817612-novatek-electro-three-phase-voltage-monitoring-relay-rnpp-312-mcb
store_origin: ZA
region: South Africa
---

# novatek electro Three Phase Voltage Monitoring Relay RNPP-312 MCB(4)

**Brand:** novatek electro
**Price:** R681
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** novatek electro Three Phase Voltage Monitoring Relay RNPP-312 MCB(4) by novatek electro
- **How much does it cost?** R681 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/138817612-novatek-electro-three-phase-voltage-monitoring-relay-rnpp-312-mcb)

## Best For

- novatek electro enthusiasts

## Why This Product

- Trusted novatek electro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

RNPP-312 has been designed:for monitoring the permissible voltage level;for monitoring the correct alternation and absence of sticking of phases;for monitoring the full-phase and symmetry of the mains voltage (phase imbalance);to disconnect the load in case of improper mains voltage and neutral failure;for monitoring the quality of the mains voltage after switching off the load and automatically turning it on after restoring the voltage parameters;to indicate the failure in the event of emergency situation and the presence of voltage in each phase.The device provides the possibility of adjusting the parameters (voltage threshold, time of automatic reclosing and time delay of protection operation), selection of the voltage of the monitored mains (400 V or 415 V) and a set of protective functions. After restoring the voltage parameters of the mains, the device enables again the load after the reclosing time.RNPP-312 can be operated in the following modes:Ã¢ÂÂMinimum and maximum voltage controlÃ¢ÂÂ;Ã¢ÂÂMinimum voltage controlÃ¢ÂÂ;Ã¢ÂÂMaximum voltage controlÃ¢ÂÂ;Ã¢ÂÂPhases presence controlÃ¢ÂÂ (Single Phasing);Ã¢ÂÂControl of incorrect phase sequence; Ã¢ÂÂPresence of phase stickingÃ¢ÂÂ (short circuit);Ã¢ÂÂPhase imbalance/assymetry controlÃ¢ÂÂ.Protections can be turned ON/OFF through built-in DIP switch.Microcontroller basedON/OFF delay timersover & under voltage2NO + 2NC RelaySales Package: device, user manualBrand: novatek electroModel Number: RNPP-312Model Name: Three Phase Voltage Monitoring RelayCurrent Rating Range: 0-5 ANumber of Poles: 4Curve Characteristics: DigitalMounting Type: Vertical, HorizontalDIN Rail Mount Type: 35 mmStandard Approval: CE, ISO 9001:2015Visual Trip Indicator: YesSuitable For: Industrial, Hotel, Domestic, Three Phase MotorsPrevention Capability: NoOperating Time: 0.02 secOperating Voltage: 240 VOther Features: RNPP-312 can be operated in the following modes:
Ã¢ÂÂMinimum and maximum voltage controlÃ¢ÂÂ;
Ã¢ÂÂMinimum voltage controlÃ¢ÂÂ;
Ã¢ÂÂMaximum voltage controlÃ¢ÂÂ;
Ã¢ÂÂPhases presence controlÃ¢ÂÂ (Single Phasing);
Ã¢ÂÂControl of incorrect phase sequence; 
Ã¢ÂÂPresence of phase stickingÃ¢ÂÂ (short circuit);
Ã¢ÂÂPhase imbalance/assymetry controlÃ¢ÂÂ.Width: 18 cmHeight: 90 cmWeight: 100 gWarranty Summary: 3 years limited manufacturing warrantyCovered in Warranty: manufacturing defects onlyNot Covered in Warranty: improper installation, physical damage and burning is not covered under warrantyWarranty Service Type: manufacturer carry in warranty

## Features

- Microcontroller based
- ON/OFF delay timers
- over & under voltage
- 2NO + 2NC Relay

## Images

![novatek electro Three Phase Voltage Monitoring Relay RNPP-312 MCB(4) - Image 1](https://rukminim1.flixcart.com/image/800/800/jwwffrk0/electrical-mcb-rccb/p/p/y/0-5-three-phase-voltage-monitoring-relay-rnpp-312-novatek-original-imafhhjn7fadtmk7.jpeg?q=90)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-13*