Passive Components

225A DC Circuit Breaker, 1/2/3/4 Pole

$135.79

SKU: ATO-DCCB-225A

225 amp circuit breaker at cheap price for sale online. Total break time of smart circuit breaker is 20 ms. 1 pole, 2 pole, 3 pole and 4 pole can be selected. PV DC circuit breaker with extremely high breaking capacity and currentlimiting characteristics.

24V DC Signal Relay, SPDT, 3A

$20.95

SKU: ATO-SR-W38DC24V

Buy 24V DC signal relay online, contact form SPDT (1C), 3A contact switching capability, rated load 1A 240VAC/30VDC, 3A 120VAC, coil nominal power 360mW/200mW/450mW.

2500 Amp Dual Power Automatic Transfer Switch, 4 Pole

$3,509.08

SKU: ATO-DPATS-2500

Reliable and intelligent automatic transfer switch with 2500 amp rated current for sale online. 1000V rated insulation voltage and 12 kV rated shock withstand voltage of this high performance dual automatic transfer switch. Working temperature of 2500 amp auto changeover switch between -25 ℃ and 70 ℃.

28AWG Hook-Up Wire, UL1007, 300V, 2000 ft

$69.59

SKU: ATO-UL1007-28

Favorable price 28AWG electrical insulated hook-up wire, 300V rated voltage, 2000 ft. /roll. It meets UL 1007 standard for tinned cooper wire and PVC outer cover for insulation. Different colors for your choices.

3 Phase Voltage Monitor Relay, 3-wire 127V-265V/4-wire 220V-460V

$68.39

SKU: ATO-MR-GRV810

The three-phase voltage monitoring relay has SPDT (2 C/O) contacts, accurate pressure measurement, and is suitable for quickly cutting off or connecting the circuit when the power supply voltage exceeds or falls below the set range for 3-wire AC 127V-265V/ 4-wire AC 220V-460V to ensure the safe and reliable operation of the power system. The 3-phase relay is equipped with LED lights to indicate the working status and is lightweight and easy to install.

3/4" Automatic Water Level Control Valve

$50.99

SKU: ATO-SSFV-3/4

Factory price 1/2" (DN15) stainless steel float valve is a fully automatic water level control valve with threaded connection, above/side water inlet direction, and narrow/wide side mounting bracket, suitable for water level control in agricultural irrigation and domestic water supply systems.

300A High Voltage DC Contactor, 12V/24V coil

$186.15

SKU: ATO-DCCON-HV300

The ATO-ADH300 contactor has been designed for DC loads, particularly for DC high voltage field, operating voltage up to 900V. 300A rated load current of contact circuit, normal open (SPST-NO) main contacts with silver alloy tips, which are weld resistant, hard wearing and have excellent conductivity.

3200 Amp Dual Power Automatic Transfer Switch, 4 Pole

$4,023.47

SKU: ATO-DPATS-3200

Economical price double power auto transfer switch with 3200 amp rated current for sale online. 2.4s change-over time and AC 440V rated working voltage of this auto transfer switch. Storage temperature between -30 ℃ and 80 ℃. Automatic power switch often used in airport, shopping mall, hospotal and military facility.

40 amp 3 pole Miniature Circuit Breaker

$73.79

SKU: ATO-MCB-3P40

Economical price 3 pole 40 amp DIN rail mountable miniature circuit breaker is rated at 230/400V AC supply with 6kA short circuit breaking capacity. Short-circuit protection and overload protection, with C curve trip characteristic, DIN rail mounted.

400A High Voltage DC Contactor, 12V/24V coil

$220.49

SKU: ATO-DCCON-HV400

Favorable price high voltage DC contactor for sale, with 400 amps rated load current of contact circuit, 1NO or 1NC contact form, available with 6V/12V/24V/36V/48V/60V/72V/84V/120V/150V/220V DC, 220V AC coils. This magnetic HVDC contactor is an electrical device designed to control and switch high voltage direct current circuits.

4μF 450V Ceiling Fan Capacitor

$2.69

SKU: ATO-FC-CBB61-040

2 Wire capacitor for ceiling fan, capacity value 4μF, 450V AC and 50/60Hz rating, capacitance tolerance 5%, ceiling fan capacitor can be applied to different types of ceiling fan motors for start and stop.

50 amp 4 pole Miniature Circuit Breaker

$93.85

SKU: ATO-MCB-4P50

50 amp current rating miniature circuit breaker provides supplementary protection in the AC 50Hz circuit, 230/400V supply voltage. 4 pole version and 6kA interrupt capacity MBC, which has C curve trip characteristics.

50 Amps 4 Pole AC contactor 24V/110V/220V Coil

$97.50

SKU: ATO-ACCON-050

This lightweight and convenient bypass AC contactor with 4P (4NO) or 4P (2NO+2NC) contact form, it has a lot coil voltage to choose like 24V, 110V, 220V. And when the voltage is at 380V, the rated current is 50A; voltage is at 660V, rated current is 39A. 4 pole contactor relay can be used for a long time and is also affordable.

50A DC Reversing Contactor, 2 pole, 12V/24V/48V

$74.31

SKU: ATO-DCCON-R50

Two pole DC reversing contacor with 2 sets of switching contacts, 2NO and 2NC form, 50 amps rated load current of contact circuit, coil rated voltage with 12V/24V/48V DC for selection. Cheap price and manufacturer direct sale.

50A Star Delta Starter, 25kW/ 45kW, 220V/ 380V AC

$169.39

SKU: ATO-STAR-50

Favorable price 50 amps starting current star delta starter consists of 3 contactors and an air delay head for 3 phase asynchronous motor circuit control, working at 25kW/ 45kW power, optional 220V or 380V AC voltage, contact form 3P. This wye delta motor connection starter has short circuit protection, overload protection, missing phase protection and other functions.

7 Position DIP Switch, 14 Pin, SPST

$9.79

SKU: ATO-DIP-7P

7 position 14 pin Dual inline package switch (DIP switch) for sale. It can be used to activate or deactivate different electronic circuits of PCB, breadboard or motherboard, surface mount, SPST loop, pin space 2.45mm, small size with wholesale price.

800A High Voltage DC Contactor, 12V/24V coil

$258.59

SKU: ATO-DCCON-HV800

Buy high voltage DC contactor online, with 800 amps rated load current of contact circuit, 1NO or 1NC contact form, available with 6V/12V/24V/36V/48V/60V/72V/84V/120V/150V/220V DC, 220V AC coils. This magnetic HVDC contactor is widely used in the DC high voltage field and offers exceptional performance in an extremely small and lightweight device.

Circular Connector, 2/3/7/8/10/12/14 Pin, M22

$53.81

SKU: ATO-CIRCN-P20

Circular connector has simple and firm locking mechanism, easy to seal, insert and dismantle. Circular connector has 2/3/4/5/6/7/8/10/12/14 pin, female/male plug & socket to select.

Current Transformer, 600/5A, 1000/5A, 2000/5A to 3000/5A

$195.68

SKU: ATO-CT-100II

High accuracy current transformer rated frequency can choose 50 Hz or 60Hz, current ratio can be 600/5A, 1000/5A, 1500/5A to 3000/5A, accuracy classes can select 1, 0.5, 0.5S, 0.2 or 0.2S. Direct sales from manufacturer and free shipping.

Electromagnetic Relay, 11-pin 3PDT, 12V/24V/110V/220V

$53.77

SKU: ATO-EMR-13F3Z

Low cost and high quality electromagnetic relay, 11-pin 3PDT, plug-in terminals, silver alloy contacts, and contact load 10A/240V AC 28V DC, common coil voltages of 12VDC / 24VDC / 110VAC / 220V AC for your choice.