TM5ACBM12 Modicon TM5 Black Bus Base for 240V AC I/O Modules

The TM5ACBM12 is a black Modicon TM5 bus base for compatible AC digital input and relay output electronic modules.

It provides the mechanical mounting and TM5 bus connection required to assemble an AC-rated I/O slice.

Its black color coding distinguishes it from white 24 V DC bases and grey power-distribution bases, helping prevent incompatible module combinations.

TM5ACBM12 is not a standalone 240 V AC power supply. The external AC or relay-load circuit is connected through the compatible electronic module and terminal block.

Key Features

• Black AC-rated TM5 bus base
• Rated for 240 V AC applications
• Supports 100–240 V AC input modules
• Supports AC/DC relay output modules
• TM5 bus power and data connection
• DIN-rail mounting
• No address-setting switches

Typical Applications

• AC contact-status monitoring
• 120–240 V AC input slices
• Relay output slices
• Machine control cabinets
• Modular TM5 I/O stations

Compatible Module Types

TM5ACBM12 is intended for selected modules such as:

• 100–240 V AC digital input modules
• 30 V DC / 230 V AC relay output modules

The exact electronic module and terminal block must be confirmed before installation.

Black Mechanical Coding

The black housing identifies the base as an AC-compatible TM5 component.

This helps distinguish it from:

• White 24 V DC I/O bases
• Grey power-distribution bases
• Network-interface bases

Different color-coded bases are not automatically interchangeable.

TM5ACBM12 vs TM5ACBM11

TM5ACBM12

Black housing

Used with compatible AC input and relay output modules

Rated for 240 V AC applications

TM5ACBM11

White housing

Used with standard 24 V DC digital, analog and expert modules

24 V DC I/O power-segment design

TM5ACBM12 should not replace TM5ACBM11 in a standard 24 V DC slice.

TM5ACBM12 vs TM5ACBM15

TM5ACBM12

Black AC-compatible base

No address-setting function

TM5ACBM15

White 24 V DC base

Includes address-setting switches

The difference is not only address setting; the two bases are intended for different module categories.

TM5ACBM12 vs TM5ACBM01R

TM5ACBM12

Black base for compatible AC I/O modules.

TM5ACBM01R

Grey left-isolated base for power-distribution and receiver modules.

They have different power-segment and module-compatibility functions.

Part of a Complete TM5 Slice

A complete operating slice normally includes:

• TM5ACBM12 bus base
• Compatible AC input or relay output electronic module
• Compatible removable terminal block

The bus base alone does not provide any input or output channels.

Installation Notes

Before installation:

• Disconnect TM5 and external load power
• Confirm the exact electronic module
• Match black-coded components
• Verify the terminal-block reference
• Check AC voltage and wiring
• Maintain required electrical clearances
• Mount the base securely on the DIN rail
• Restore power only after completing safety checks

Installation should be completed by qualified electrical or automation personnel.

FAQ

Q1: What is TM5ACBM12?

A1: It is a black Modicon TM5 bus base for compatible 100–240 V AC input and AC/DC relay output modules.

Q2: Is it a 240 V AC power supply?

A2: No. It is a mounting and bus-connection base and does not generate AC power.

Q3: Which modules are compatible?

A3: Official data lists compatible 100–240 V AC digital input modules and 30 V DC / 230 V AC discrete relay output modules.

Q4: Can it replace TM5ACBM11?

A4: No. TM5ACBM11 is a white base for standard 24 V DC modules.

Q5: Does it include address-setting switches?

A5: No. TM5ACBM12 does not provide the address-setting function found on TM5ACBM15.

Q6: Are the electronic module and terminal block included?

A6: No. TM5ACBM12 is normally supplied as the bus base only.