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1000A SSR Solid State Relay, 3-32V DC to DC

5 out of 5 based on 3 reviews | Write a review

$374.61

High current solid state relay 1000 amp, DC to DC type, with 3-32V DC input. Specifically designed for applications requiring high current control. High electromagnetic interference suppression, high sensitivity, and fast switching speed. Widely used in various automated control systems.

Heat Sink *

SKU: ATO-SSR-DD1000A

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Delivery date: 6-12 days

Overview
Related Video

1000A Solid State Relay (SSR) is a high-performance electronic switching device designed for demanding industrial and commercial applications. The SSR relay operates with an input control voltage range of 3-32V DC and is capable of handling output currents up to 1000A, making it ideal for high-power switching tasks. Unlike traditional mechanical relays, high voltage ssr solid state relay has no moving parts, which ensures silent operation, long lifespan, and increased reliability.

Features

High current capacity
DC-DC control
No mechanical contacts
Fast response
Low noise
Strong anti-interference ability
Heat dissipation design
Over-current protection, overheating protection

Specification

Model		ATO-SSR-DD1000A
Input	Control voltage range	3-32V DC
	Max. input current	18mA
	Must operate voltage	3V DC
	Must release voltage	2V DC
Output	Load voltage	75V DC
	Load current	1000A
	Maximum off-state leakage current	2mA
	Maximum on-state voltage drop	≤0.05V
General	Type	DC to DC
	Dimension L – W – H (mm)	105×74×53
	Dielectric strength	2500V
	Operational temperature	-20℃~ 80℃
	Certification	CE

Dimension (Unit: mm)

1000A solid state relay (SSR)

Heat sink

Wiring Diagram

Usage Tips

When using the 1000A SSR Solid State Relay, please keep the following points in mind to ensure optimal performance and longevity:

Proper Installation: Install the relay in a well-ventilated location, avoiding high temperatures and humid environments to ensure good heat dissipation.
Correct Wiring: Follow the wiring diagram on the product label for proper connections, ensuring the input and output voltages match the product specifications. Use appropriately sized cables to handle high current.
Load Selection: Ensure the connected load is within the relay's rated current range to avoid overloading.
Environmental Protection: In harsh environments, consider additional protective measures such as sealed boxes or protective covers to enhance resistance to corrosion, humidity, and dust.
Regular Maintenance: Regularly check the relay's wiring to ensure good connections, and clean dust from the heat sink to maintain effective heat dissipation.
Temperature Monitoring: During prolonged operation under high load, monitor the relay's temperature to ensure it operates within a safe range.

Following these usage tips will help you maximize the performance of the 1000A SSR Solid State Relay and ensure its stable and reliable operation.

Relays vs Circuit Breakers: What’s the Difference

In this video, we've described the difference between a relay and a circuit breaker as well as explaining their basic working and operation by means of animation. If you find this video helpful, please LIKE it and SHARE with your friends. Don't forget to check out the purchase links above if any featured items're of your interest.

Existing reviews of 1000A SSR Solid State Relay, 3-32V DC to DC

Bidirectional Current

Regarding the ATO-SSR-DD1000A solid-state relay, I have a question: Does this relay support bidirectional current? (Application notes: One side is connected to a battery, assuming it is always connected; the other side is connected to a DC power supply, not always energized; both sides are connected to load components—the current direction may change as the system operates.)

From: Mokra | Date: 14/05/2026

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ATO Responded

Sorry, the ATO-SSR-DD1000A solid-state relay cannot withstand bidirectional current. Its operating principle is that after the control voltage of 3-32V DC is turned on, the relay energizes and connects to the load.

Solid state relays data

Do you have the datasheet for SKU: ATO-SSR-DD1000A? I'd like to purchase one. I need to know its resistance value (accurate to milliohms), its switching speed (accurate to milliseconds), how long it can sustain 600 amps at voltages below 5V, its rated cycle count, and its typical duty cycle (I want it to switch once per second).

From: Indre | Date: 26/01/2026

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ATO Responded

This unit has a response time of less than 20ms and cannot be set to one second on/off. Other data will require testing before it can be provided.

Motor Control

I need to use a solid state relay to control the on/off switching of a motor. The motor's continuous operating current is 125A at 12-60V DC, with a peak current of approximately 150-180A. Can the ATO-SSR-DD1000A solid-state relay meet the motor specifications I mentioned?

From: Obers | Date: 31/07/2025

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ATO Responded

The motor can carry a continuous current of 125A at 12-60V DC. The solid-state relay needs to amplify the current by 5-8 times. Theoretically, a 1000A specification is sufficient. We recommend purchasing both the solid-state relay and a heat sink for testing.

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