All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
Chovm
Electrical Equipment & Supplies
Industrial Controls
Relays
Relay expansion board
(1121 products available)
Previous slide
Next slide
5V Low Level Trigger
Relay
Expansion
Board
One Way Single 1 Way
Relay
Module
Ready to Ship
$
0
.26 -
0
.30
Min. Order: 10 pieces
Shipping per piece: $0.87
1 yrs
CN
Supplier
4.9/5.0
·
4 reviews
Previous slide
Next slide
8-way
relay
module
expansion
board
with optocoupler isolation support AVR/51/PIC microcontroller
Ready to Ship
$
2
.03 -
2
.29
Min. Order: 5 pieces
Shipping per piece: $1.07
3 yrs
CN
Supplier
4.9/5.0
·
21 reviews
·
"customer service"
Previous slide
Next slide
Shimaide 16-Channel
Relay
Isolation Input Module PLC
Expansion
Board
with DC24V Voltage Switch Supply
$
75
.40 -
75
.50
Min. Order: 10 pieces
Shipping per piece: $3.76
2 yrs
CN
Supplier
0.0/5.0
·
0 reviews
Previous slide
Next slide
RJ 1/2/4/8-way 5V12V24V
relay
module with optocoupler isolation support for high and low voltage Flat trigger
expansion
board
$
0
.33 -
2
.53
Min. Order: 5 pieces
1 yrs
CN
Supplier
4.6/5.0
·
8 reviews
1
More pages
5
6
7
8
9
10
11
12
13
More pages
29
9
/
29