Interface Modules

Interface modules are essential components in industrial control and automation systems, enabling reliable signal transmission between devices and control platforms. These modules act as intermediaries between field devices, control systems, and higher-level electronics, ensuring signals are properly translated, distributed, and understood across different communication protocols. Common applications include signal conversion between computers, PLCs, sensors, and other industrial equipment.

In control panels and electrical enclosures, interface modules help simplify complex wiring layouts while supporting high-density installations where space is limited. Their modular design allows for streamlined installation, reduced wiring effort, and easier system expansion. Interface modules are used across a wide range of applications, from basic on-off control to complex multipoint process control systems requiring dependable signal handling.

RSP Supply offers interface modules designed for signal transmission, isolation, and distribution at both the control and field levels. Options include diode interface modules that provide polarity protection, signal isolation, and controlled signal flow to help maintain system reliability and protect sensitive equipment in demanding industrial environments.

Found 443 items
Normally In Stock
Weidmuller 9445100000 Interface Module - 20 Pole
Free U.S Ground shipping
$441.66
$368.05
Normally In Stock
Weidmuller 9444660000 Interface Module - 20 Pole
Free U.S Ground shipping
$584.32
$486.93
Normally In Stock
Weidmuller 9445000000 Interface Module - 20 Pole
Free U.S Ground shipping
$238.16
$198.47
Normally In Stock
Weidmuller 9445060000 Interface Module - 20 Pole
Free U.S Ground shipping
$732.44
$610.37
Normally In Stock
Weidmuller 9445120000 Interface Module - 20 Pole
Free U.S Ground shipping
$752.44
$627.03
Normally In Stock
Weidmuller 9445140000 Interface Module - 20 Pole
Free U.S Ground shipping
$845.92
$704.93
Normally In Stock
Weidmuller 9445160000 Interface Module - 20 Pole
Free U.S Ground shipping
$1680.37
$1400.31
Normally In Stock
Weidmuller 9445180000 Interface Module - 20 Pole
Free U.S Ground shipping
$617.86
$514.88
Normally In Stock
Weidmuller 9445200000 Interface Module - 20 Pole
Free U.S Ground shipping
$1064.53
$887.11
Normally In Stock
Weidmuller 9445220000 Interface Module - 20 Pole
Free U.S Ground shipping
$1392.80
$1160.67
Normally In Stock
Weidmuller 9445530000 Interface Module - 20 Pole
Free U.S Ground shipping
$96.49
$80.41
Normally In Stock
Weidmuller 9445630000 Interface Module - 20 Pole
Free U.S Ground shipping
$166.37
$138.64
Normally In Stock
Weidmuller 9445700000 Interface Module - 20 Pole
Free U.S Ground shipping
$78.60
$65.50
Normally In Stock
Weidmuller 9445710000 Interface Module - 20 Pole
Free U.S Ground shipping
$129.97
$108.31
Normally In Stock
Weidmuller 9445720000 Interface Module - 20 Pole
Free U.S Ground shipping
$119.42
$99.52
Normally In Stock
Weidmuller 9445730000 Interface Module - 20 Pole
Free U.S Ground shipping
$147.66
$123.05
Normally In Stock
Weidmuller 9445750000 Interface Module - 20 Pole
Free U.S Ground shipping
$196.66
$163.88
Normally In Stock
Weidmuller 9445760000 Interface Module - 20 Pole
Free U.S Ground shipping
$154.56
$128.80
Normally In Stock
Weidmuller 9445770000 Interface Module - 20 Pole
Free U.S Ground shipping
$178.04
$148.37
Normally In Stock
Weidmuller 9445810000 Interface Module - 20 Pole
Free U.S Ground shipping
$175.96
$146.63
Normally In Stock
Weidmuller 9445820000 Interface Module - 20 Pole
Free U.S Ground shipping
$246.66
$205.55
Normally In Stock
Weidmuller 9445870000 Interface Module - 2x20 Pole
Free U.S Ground shipping
$468.82
$390.68
Normally In Stock
Weidmuller 9445900000 Interface Module - 2x20 Pole
Free U.S Ground shipping
$135.22
$112.68
Normally In Stock
Weidmuller 9445910000 Interface Module - 2x20 Pole
Free U.S Ground shipping
$259.74
$216.45
Normally In Stock
Weidmuller 9445930000 Interface Module - 2x20 Pole
Free U.S Ground shipping
$329.35
$274.46
Normally In Stock
Weidmuller 9445950000 Interface Module - 2x20 Pole
Free U.S Ground shipping
$511.37
$426.14
Normally In Stock
Weidmuller 9445960000 Interface Module - 2x20 Pole
Free U.S Ground shipping
$287.18
$239.32
Normally In Stock
Weidmuller 9445970000 Interface Module - 2x20 Pole
Free U.S Ground shipping
$410.14
$341.78
Normally In Stock
Weidmuller 9445980000 Interface Module - 2x20 Pole
Free U.S Ground shipping
$760.66
$633.88
Normally In Stock
Weidmuller 9447000000 Interface Module - 20 Pole
Free U.S Ground shipping
$415.55
$346.29
Normally In Stock
Weidmuller 9447100000 Interface Module - 20 Pole
Free U.S Ground shipping
$472.85
$394.04
Normally In Stock
Weidmuller 9447120000 Interface Module - 20 Pole
Free U.S Ground shipping
$752.44
$627.03
Normally In Stock
Weidmuller 9447160000 Interface Module - 20 Pole
Free U.S Ground shipping
$687.68
$573.07
Normally In Stock
Weidmuller 9447200000 Interface Module - 20 Pole
Free U.S Ground shipping
$1064.53
$887.11
Normally In Stock
Weidmuller 9447910000 Interface Module - 20 Pole
Free U.S Ground shipping
$259.74
$216.45
Normally In Stock
Weidmuller 9447930000 Interface Module - 20 Pole
Free U.S Ground shipping
$400.50
$333.75
Normally In Stock
Weidmuller 9447970000 Interface Module - 20 Pole
Free U.S Ground shipping
$518.54
$432.12
Normally In Stock
Weidmuller 9448000000 Interface Module - 15 Pole
Free U.S Ground shipping
$195.02
$162.52
Normally In Stock
Weidmuller 9448010000 Interface Module - 25 Pole
Free U.S Ground shipping
$196.60
$163.83
Normally In Stock
Weidmuller 9448020000 Interface Module - 37 Pole
Free U.S Ground shipping
$291.52
$242.93
Normally In Stock
Weidmuller 9448030000 Interface Module - 25 Pole
Free U.S Ground shipping
$337.27
$281.06
Normally In Stock
Weidmuller 9448040000 Interface Module - 15 Pole
Free U.S Ground shipping
$275.70
$229.75
Normally In Stock
Weidmuller 9448100000 Interface Module - 15 Pole
Free U.S Ground shipping
$275.78
$229.82
Normally In Stock
Weidmuller 9448110000 Interface Module - 25 Pole
Free U.S Ground shipping
$402.35
$335.29
Normally In Stock
Weidmuller 9448120000 Interface Module - 37 Pole
Free U.S Ground shipping
$825.68
$688.07
Normally In Stock
Weidmuller 9449110000 Interface Module - 25 Pole
Free U.S Ground shipping
$300.12
$250.10
Normally In Stock
Weidmuller 1107761001 Interface Module w/ Relay - 8 x SPDT - 1 CO Contact
Free U.S Ground shipping
$941.30
$784.42
Normally In Stock
Weidmuller 1107861001 Interface Module w/ Relay - 16 x SPDT - 1 CO Contact
Free U.S Ground shipping
$721.10
$600.92

FAQs

Q: What is the purpose of an interface module?
Interface modules transmit, convert, and distribute signals between devices and control systems. They ensure that signals from different components are compatible and can be reliably interpreted within an automation system.

Q: How do interface modules support communication between devices?
Interface modules interpret incoming signals and reformat or condition them so that receiving devices—such as PLCs or computers—can correctly process the information, even when different communication protocols are used.

Q: What is the typical number of channels in an interface module?
Interface modules commonly range from 1 to 16 channels or more, depending on the design, signal type, and application requirements.

Q: What are diode interface modules used for?
Diode interface modules are used for signal isolation, polarity protection, and controlled signal flow within electrical systems. They help prevent backfeeding and protect sensitive control components.

Q: Where are interface modules commonly installed?
Interface modules are typically installed in control panels or electrical enclosures, where they help reduce wiring complexity and support organized, high-density signal routing.

Why Buy Interface Modules from RSP Supply

RSP Supply offers a broad selection of industrial interface modules designed to support reliable signal transmission and control system integration. Our catalog includes solutions for signal conversion, isolation, and distribution across a wide range of industrial applications. Customers rely on RSP Supply for trusted manufacturers, detailed technical information, and interface components that support efficient, long-term system performance.