will this work for a car cooler to prevent battery drain and if so can I set the shut off at 13 volts?

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.

Is there a link for the MAnual/directions for Ad48?

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.

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.

Yes the contacts are isolated from the input

Can this is connected to a 120/240 volts power supply?

Yes. It can connect to 120v. Dc or Ac

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

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

Product ID: 133985529

Details

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

⚡6A max switching current

📊Built-in LCD for real-time monitoring

🔋Auto AC/DC voltage detection

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37717CFA

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Description

⚡ Stay ahead of power dips and spikes—protect your energy flow like a pro!

PRECISION PROTECTION - Real-time single-phase over/under voltage monitoring safeguards your critical systems effortlessly.
MODULAR DIN RAIL DESIGN - Standardized modular build for quick, clean rail-type installation—upgrade your setup in minutes.
SELF POWERED RELIABILITY - Operates without auxiliary power—cut complexity, boost efficiency, and reduce maintenance.
SMART HYSTERESIS CONTROL - Customizable voltage hysteresis prevents relay chatter, delivering stable, reliable switching.
SEAMLESS VOLTAGE VIGILANCE - Automatically detects AC/DC voltage—no manual switching needed, ensuring zero downtime.

The YWBL-WH SVR1000 is a cutting-edge single-phase voltage monitoring relay designed for industrial and solar applications. Featuring automatic AC/DC voltage detection, a clear LCD display for real-time voltage and fault status, and dual independent relays, it offers precise over-voltage and under-voltage protection. Its modular DIN rail design and self-powered operation make it an essential, hassle-free safeguard for your power systems.

Specifications

ASIN	B07PZD9WSL
Best Sellers Rank	#123,203 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Phase Monitoring Relays
Brand	YWBL-WH
Brand Name	YWBL-WH
Coil Voltage	90 Volts
Connector Type	Screw
Contact Current Rating	6 Amps
Contact Material	Copper Alloy
Contact Type	Normally Open
Current Rating	6 Amps
Customer Reviews	4.5 out of 5 stars 23 Reviews
Included Components	inc
Manufacturer	YWBL-WH
Maximum Switching Current	6 Amps
Minimum Switching Voltage	1 Volts (DC)
Mounting Type	DIN Rail Mount
Number of Terminals	2
Operation Mode	Automatic
Part Number	shgbwqe94u-03
Specification Met	IEC/EN 60947
UPC	703633820945
Unit Count	1.0 Count

Reviews

D**7

Very good product

Using it to monitor electric utility company low or high voltage to my house. If it is out of the ranges I programed into it, it will start my generator. The generator will run until the utility company electric power is back to normal voltage levels. Very easy wiring and setup.

1.08.2024

Y**Z

Excelente

muy buena inversión puedes controlar la alimentación de la casa y evitar que se quemen los equipos electrónicos

11.05.2023

C**G

Muy buen dispositivo

Muy interesante y facil de configurar

23.12.2023

S**Z

Worked as expected

Worked as expected. No complaints!

19.02.2023

D**.

I removed 2 stars.

I looked closely as I could at the details. The picture shows a precision of .1. Even the picture shows my model number, AD200. I clearly shows 48.0. It is not, presion is at one full volt. I also posted a question about this, and the company never responded. I ordered their model AD48 and it is a precision of .1 volt, as I needed. If you need .1, this is not it.

17.03.2023

R**S

It works

Works just like it’s supposed to. Used to protect electronics from brown out . Voltage 120 . Easy to set good instructions.

11.08.2020

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37717CFA

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