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 A
Mounting Type
DIN Rail Mount

⚡12–600 V AC & 12–400 V DC universal detection

📊Built-in LCD with real-time voltage & alerts

🛠️Modular DIN rail mount for tool-free install

€ 63.55

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Description

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

REAL TIME VISUAL MONITORING - Clear LCD display delivers instant voltage readings and fault alerts in simplified Chinese for intuitive onsite diagnostics.
ROBUST SAFETY RELIABILITY - IEC/EN 60947 certified with 6A copper alloy contacts ensures dependable over/under voltage protection in demanding environments.
SMART VOLTAGE AUTO DETECTION - Seamlessly supports AC/DC inputs from 12 to 600 V, eliminating manual range switching and reducing human error.
OPTIMIZED FOR GLOBAL TECH TEAMS - Designed to enhance technician safety and efficiency across HVAC, solar, and industrial automation sectors.
PLUG PLAY INDUSTRIAL INTEGRATION - Modular rail-mount design fits standard 35mm DIN rails for rapid, hassle-free installation and upgrades.

The YWBL-WH SVR1000 is a cutting-edge single-phase voltage monitoring relay featuring universal AC/DC voltage auto-detection (12–600 V AC, 12–400 V DC), modular DIN rail mounting for quick installation, and a built-in LCD display for real-time voltage and fault alerts. Engineered for industrial automation, HVAC, and solar applications, it offers reliable over/under voltage protection with IEC/EN 60947 certification and user-friendly operation tailored for Chinese-speaking technicians.

Specifications

ASIN	B07PZD9WSL
Best Sellers Rank	#118,491 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Phase Monitoring Relays
Brand Name	YWBL-WH
Coil Voltage	90 volts
Connector Type	Screw
Contact Current Rating	6 A
Contact Material	Copper Alloy
Contact Type	Normally Open
Current Rating	6 A
Customer Reviews	4.5 4.5 out of 5 stars (24)
Included Components	inc
Manufacturer	YWBL-WH
Maximum Switching Current	6 A
Minimum Switching Voltage	1 volts_of_direct_current
Mounting Type	DIN Rail Mount
Number of Items	1
Number of Packs	1
Number of Terminals	2
Operation Mode	Automatic
Part Number	shgbwqe94u-03
Specification Met	IEC/EN 60947
UPC	703633820945
Unit Count	1 Count

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€ 63.55

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

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TrustScore 4.5 | 7,300+ reviews

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