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    0.1~6 Amp Thermal Overload Relay, 220V, 3-Phase

    SKU: ATO-TOR-016
    Low price thermal overload relay for sale. 8 current setting ranges for selection, minimum 0.1A, maximum 6A, rated operational current 25A, rated working voltage 3-phase 220V~690V, insulation voltage 690V, phase failure protection function, matching 9A contactor and 2A gG fuse breaker.

    1.5V DC Signal Relay, SPDT, 2A

    SKU: ATO-SR-W13DC15V
    Low price miniature signal relay for load switching, coil voltage 1.5V DC, contact form SPDT, max. switching current 2A, rated load 1A 125VAC/30VDC, selectable coil nominal power 200mW/150 mW.

    3 Phase Monitoring Relay, SPDT, Phase Failure/Undervoltage/Overvoltage

    Low price 3 phase voltage monitoring relay with SPDT (1 C/O) contact, used for monitoring phase failure/loss, phase sequence, phase unbalance, overvoltage and undervoltage at the rated voltage of AC 220V, 380V, 440V, 460V, or 480V 50/60Hz, LED lights indicating working state, compact size and DIN rail mounting, provide a safe protection for electric motors, air compressors, pumps and other equipment or devices.

    30A Automotive Starter Relay, 12V/24V DC

    SKU: ATO-ASR-30
    Low cost auto starter relay for sale, with 30A/40A contact current, available in contact form of 1Z (1C) or 1H (1A), coil rated voltage of 12V DC or 24V DC, 4 pin or 5 pin installation. This automotive starter relay is an electrical component in a car's starting system, acting as an intermediary between the ignition switch and the starter motor.

    Digital Timer Relay, 8 Pin, 24V DC/110-240V AC

    Digital timer relay / countdown timer, on-delay timer, features timing setting range 0.01~9999 second / minute / hour, with supply voltages 85V-265V AC (110-240V AC) or 24V DC, 4-digit LED dual time display, easy to read, wide time delay range and high timing accuracy. 8-pin timer relay, available with 8-pin mounting socket for DIN Rail, easy to install.

    Electromagnetic Relay, DPDT, 12/24/110/220V coils

    Electromagnetic relay features with 8 pins, DPDT(Double Pole Double Throw), clear and plastic housing. The coil voltages of 12V DC, 24VDC, 110V AC and 220V AC are available with contact load 5A/240V AC 28V DC and widely used in automatic control system.

    Safety Relay 24V AC/DC 2NO

    SKU: ATO-SR-E10X
    Low cost safety relay 24V DC/AC for sale, AC supply voltage 24V, 42V, 115V, 120V, 230V, or 240V, DC supply voltage 24V, frequency 50-60Hz. Safety relay with high-performance, safely control the environment around any time to monitor.

    Solid state relay SSR-10DA, 10A 3-32V DC to AC

    Cheap SSR-10DA, 10A single phase solid state relay, DC to AC, control voltage 3-32V DC, load volatage 24-480V AC. Excellent quality, high reliability and long lifetime.

    10~18 Amp Thermal Overload Relay, 220V, 3-Phase

    SKU: ATO-TOR-1018
    Cheap thermal overload relay for sale. 4 ranges of current setting for selection, 10~18 Amp, current rating 25A, working voltage 3-phase 220V~690V, insulation voltage 690V, phase failure protection function, suits 9A contactor and 4~20A gG fuse breaker.

    3V DC Signal Relay, DPDT, 2A

    Miniature low signal relay at affordable price, optional coil nominal power 200mW/150 mW, coil voltage 3V DC, contact form DPDT, max. switching current 2A, rated load 1A 125VAC/2A 30VDC.

    40A Waterproof Automotive Starter Relay, 12V/24V DC

    SKU: ATO-ASR-40
    Affordable price waterproof car starter relay designed with 40A contact current comes in contact forms of 1Z (1C) or 1H (1A) and offers coil rated voltages of 12V DC or 24V DC. Choose between 4 pin or 5 pin installation options. This automotive starter relay is a key component in an auto's starting system, serving as a crucial link between the ignition switch and the starter motor.

    DC Voltage Monitoring Relay, Under/Over Voltage, 12V/24V/48V DC

    DC voltage monitoring relay with 2 C/O contacts (2 Form C or DPDT) provide protection for the equipment from undervoltage and overvoltage in DC circuit 12V, 24V, 36V or 48V, adjustable trip delay time, LED indicator for working state, DIN rail mounting, compact design, good quality and low price.

    Digital Timer Relay, 8 Pin, 12V/24V/220V

    Digital timer relay with 3-digit LED display, on-delay timer, time setting range 0.01~999 second/minute/hour, supply voltages 12V DC, 24V DC or 220V AC. 8-pin timer relay with optional 8-pin mounting socket for DIN Rail, easy to install, high accuracy and wide time delay range.

    Electromagnetic Relay, 3PDT, 12/24/110/220V coils

    General purpose electromagnetic relay, 11 pins, 3PDT contact type, available for the common coil voltages of 12V DC, 24V DC, 110V AC and 220V AC, rated load 5A/240V AC 28V DC, compact size, favorable price and high quality.

    Safety Relay 24V AC/DC 3NO+1NC

    SKU: ATO-SR-E16P
    Safety relay is mainly used for AC 50-60Hz, supply voltage 24VAC/DC, safety contacts 3NO, auxiliary contact 1NC, AC power consumption 2.2VA, DC power consumption 2W. Extremely light, good value for money, direct sales from the manufacturer and free shipping.

    Solid state relay SSR-10AA, 10A 70-280V AC to AC

    Low cost SSR-10AA single phase solid state relay, load current 10A, AC control, input 70-280V AC, output 24-480V AC, compact design and high reliablity, suitable for frequent switching occasion.

    Voltage Monitoring Relay, Under/Over Voltage, 1 Phase, 110-240V AC/DC

    SKU: ATO-MR-SVR1000
    Single phase voltage monitoring relay, suitable for undervoltage and overvoltage monitoring of DC 12V, AC/DC 24-48V or AC/DC 110V-240V, adjustable delay time, compact size relay with 1 CO & 1 NC contacts, real-time LCD for voltage, operation and fault status display, DIN rail mounting, high quality and low cost.

    32~35 Amp Thermal Overload Relay, 220V, 3-Phase

    SKU: ATO-TOR-3235
    Affordable price thermal overload relay for sale. Current setting range 23~32 Amp or 28~35 Amp for selection, working current rating 36A, power supply 3-phase 220V~690V, insulation voltage 690V, matches 25A contactor, 63A gG fuse breaker, overcurrent and phase failure protection for AC motors.

    5V DC Signal Relay, DPDT, 2A

    Small signal relay for sale, coil voltage 5V DC, contact form DPDT, max. switching current 2A, rated load 1A 125VAC/2A 30VDC, coil nominal power 200mW/150mW for your choice.

    80A Automotive Starter Relay, 12V/24V DC

    SKU: ATO-ASR-80
    Factory price 80A automotive starter relay for sale online, optional of contact form 1A (4 pin SPST NO), 1B (4 pin SPST NC) or 1C (5 pin SPST M-B), available with a choice of 12V DC or 24V DC coil rated voltages. Designed as a crucial component in a car's starting system, this auto starter relay enhances the efficiency and effectiveness of the starting process.

    A relay is an electronic control device, which can automatically switch a controlled circuit to make a difference when given an input value like electrical, magnetic, optical or thermal signals. When the input value drops to a certain extent, it will return to the initial state and then the controlled circuit will also go back to the original state. It has the interaction between control system (input circuit) and the controlled system (the output circuit).

    Relays are usually used in automatic control circuits, as the automatic switches which actually can control a larger current by placing a smaller current. Therefore, it plays a role of automatic adjustment, safety protection, conversion circuit in the electric circuit. As one of the most important control elements, it is widely applied in remote control, telemetry, communication, automatic control, mechatronics and power electronics.

    What are the Types of ATO Relays?

    Electromagnetic Relay

    Electromagnetic relay 3PDTElectromagnetic relay (EMR) consists of electromagnetic system, contact system and release spring. Since the relay is used in the control circuit, the current flowing through the contact is relatively small (generally below 5A), so an arc extinguishing device is not required. Electromagnetic relay works in a way of driving the movable part in the magnetic circuit by the electromagnetic suction produced by the control current going through the coil, to achieve the function of contact open, closed and conversion. ATO provides compact-size electromagnetic relays with common coil voltages of 12V/24V/110V/220V for your choice.

    Solid-State Relay

    Solid state relayThe solid state relay (SSR) is a four-terminal device with two terminals as the input terminal and the other two terminals as the output terminal, and an isolation device is used in the middle to realize the electrical isolation of the input and output. Solid state relays are made of semiconductor devices instead of traditional coils, and do not need to rely on the movement of mechanical parts to control the opening and closing of switches, which effectively improves reliability and service life. Since coils are no longer used, problems such as electromagnetic interference and contact "sparks" are not encountered, and safety has also been greatly improved. ATO provides single phase and three phase solid state relays, including DC-AC and AC-AC, with load current from 10A to 120A.

    Thermal Overload Relay

    0.1-6 amp thermal overload relayThermal relays are mainly used for overload protection of motors, and are usually selected according to the type of motor, working environment, starting conditions and load properties. When the motor windings are connected, the thermal overload relay of two-phase structure can be selected. If the grid voltage is seriously unbalanced and the working environment is bad, the thermal relay of three-phase structure can be selected; when the motor winding is connected by △, it should be Choose a three-phase structure thermal relay with a phase failure protection device.

    Signal Relay

    15V DC signal relaySignal relays are commonly used devices in automatic control systems. They are used to connect and disconnect circuits to issue control commands and reflect equipment status to form automatic control and remote control circuits. All fields of automatic control use relays. ATO signal relays are available from 1.5V ~ 24V. Signal relays play an important role no matter as the core part of the relay signal system or as the interface part of the electronic or computer signal system. The reliability of the action of the relay directly affects the reliability and safety of the signal system.

    Safety Relay

    Safety relay 24VThe safety relay is used in the safety circuit, it's protective barrier upstream the devices in the general control system. Safety relay can be integrated with multi protection, it can even have a safety mode. For a large scale system, safety relay circuit is an important part. The common relay can be used for general overvoltage, voltage conversion, speed and coordination. Safety relay involves safety certification and level, safety relay provides extensible and functional conventional safety assurance, it's commonly used in the expansion of relay. Safety control over the system is higher than ordinary control, which is necessary and widely accepted. Safety relay is generally used for combination of switches, while relay is mostly used for linkage of contacts.

    Monitoring Relay

    3 phase monitoring relayMonitoring relay is a protection device for phase and voltage monitoring of power system or equipment. The relay can be used to monitor important parameters in the power supply system including over-voltage, under-voltage, phase loss (phase failure), three-phase voltage imbalance and phase sequence. Thus, it provides reliable relay protection for motors, pumps, fans, cranes, blowers, elevators, power distribution cabinet and air-conditioning system.

    What are the Functions of ATO Relay?

    • Expand the control range: For example, when the control signal of a multi-contact relay reaches a certain value, it can switch, break, and connect multiple circuits at the same time according to different forms of contact groups.
    • Amplification: For example, sensitive relays, intermediate relays, etc., with a very small amount of control, can control circuits with high power.
    • Integrated signal: For example, when multiple control signals are input to the multi-winding relay in a specified form, the predetermined control effect is achieved after comparison and synthesis.
    • Automatic, remote control, monitoring: For example, the relay on the automatic device can form a program control circuit together with other electrical appliances to realize automatic operation.