---
product_id: 133985529
title: "SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220)"
brand: "ywbl-wh"
price: "$86"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/133985529-svr1000-single-phase-voltage-monitoring-sequence-relay-over-voltage-under
store_origin: NZ
region: New Zealand
---

# 6A max current rating Built-in LCD real-time display Modular DIN rail mount SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220)

**Brand:** ywbl-wh
**Price:** $86
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay ahead of power faults with smart, seamless voltage monitoring!

## Quick Answers

- **What is this?** SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220) by ywbl-wh
- **How much does it cost?** $86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/133985529-svr1000-single-phase-voltage-monitoring-sequence-relay-over-voltage-under)

## Best For

- ywbl-wh enthusiasts

## Why This Product

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

## Key Features

- • **Self-Powered Reliability:** Operates without auxiliary power—always ready, always on
- • **Real-Time Voltage Insights:** Integrated LCD shows live voltage, faults & settings in Chinese
- • **Universal Voltage Detection:** Auto-detects AC/DC voltage—no manual switching needed
- • **Effortless Modular Installation:** Standardized rail-type design for quick, secure setup
- • **Robust Over/Under Voltage Protection:** Instantly monitors and safeguards single-phase circuits

## Overview

The YWBL-WH SVR1000 is a compact, self-powered single-phase voltage monitoring relay designed for DIN rail installation. It automatically detects AC/DC voltages, provides real-time voltage and fault status via a built-in LCD, and protects circuits from over-voltage and under-voltage conditions with a 6 Amp contact rating. Ideal for professionals seeking reliable, modular power protection with intuitive monitoring.

## Description

YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220)

## Features

- Modular Design: Features a standardized modular structure for rail-type installation.
- Universal Voltage Detection: Automatically identifies AC/DC voltage with no need to manually switch.
- Comprehensive Display: Utilizes a built-in LCD screen to display voltage values, fault statuses, and setting parameters in Chinese.
- Advanced Monitoring: Monitors for single-phase over-voltage and under-voltage faults in real time.
- Self-Powered: Requires no additional auxiliary power source.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Connector Type | Screw |
| Contact Material | Copper Alloy |
| Contact Type | Normally Open |
| Current Rating | 6 Amps |
| Mounting Type | DIN Rail Mount |
| Brand | YWBL-WH |
| Operation Mode | Automatic |
| Coil Voltage | 90 Volts |
| Contact Current Rating | 6 Amps |
| Maximum Switching Current | 6 Amps |
| Number of Terminals | 2 |
| UPC | 703633820945 |
| Manufacturer | YWBL-WH |
| Part Number | shgbwqe94u-03 |
| Item Weight | 3.98 ounces |
| Size | AD220 |
| Finish | Finish |
| Material | ABS |
| Power Source | Powersource |
| Installation Method | InstallationMethod |
| Item Package Quantity | 1 |
| Spout Height | 1 Centimeters |
| Measurement System | Imperial, Metric |
| Included Components | inc |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Connector Type:** Screw
- **Contact Material:** Copper Alloy
- **Contact Type:** Normally Open
- **Current Rating:** 6 Amps
- **Mounting Type:** DIN Rail Mount

## Images

![SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220) - Image 1](https://m.media-amazon.com/images/I/615CgIcHFQL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: will this work for a car cooler to prevent battery drain and if so can I set the shut off at 13 volts?**
A: Short answer is no. Min voltage is 17v so no it would not. However if you took say another 12v battery and wired it in series for 24 v but only use the other battery for emergency's you could use the 24v and set the cutoff at 22v and have the relay open in that instance it would kinda work but you would have to have a contactor for the battery connection because of the amperage of the starter.

**Q: Is there a link for the MAnual/directions for Ad48?**
A: It comes with a little piece of paper that explains the setup.   It is a some device that is configured to activate a form "C" relay based upon a low and high voltage.  Example: if the low is set to 48vdc and the high to 50vdc, the relay can be wired to be closed or open between those two voltages.

**Q: Are the input and output contacts isolated? i want to bring in my battery voltage (48v dc) and if it gets low cut the 240v ac on the output contacts.**
A: Yes the contacts are isolated from the input

**Q: Can this is connected to a 120/240 volts power supply?**
A: Yes. It can connect to 120v.  Dc or Ac

## Frequently Bought Together

- YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over-Voltage 50V-300V Under-Voltage 1V-90V AC/DC(AD220)
- VAMRONE 10 Piece Aluminum DIN Rails, 12 Inches Long, 35mm Wide, 7.5mm High, Top Hat Slotted DIN Rail with RoHS, Extra Premium Screws Included for Hardware Components Mounting
- TWTADE/JQX-62F-2Z Coil Voltage AC 110V 80A DPDT Electronmagnetic Relay,High Power Relay AC 110V

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-12*