Schneider Electric TM221CE40R Modicon M221 40 I/O Relay

TM221CE40R a 40 I/O Modicon M221 controller with relay outputs

The TM221CE40R is a Schneider Electric product listed in the datasheet as: logic controller, Modicon M221, 40 IO, relay, Ethernet. The TM221CE40R is the larger relay-output Modicon M221 with 24 inputs and 16 relay outputs, powered directly from 100 to 240 V AC. It is the controller chosen for small machines and building systems that want to switch AC loads and small contactors without extra interposing relays. Seven Star LLC supplies the TM221CE40R in Oman and the GCC as an independent supplier based in Muscat.

Decoding the reference: CE means compact with Ethernet, 40 is the I/O count and R marks relay outputs. The datasheet states 24 discrete inputs, 16 normally open relay outputs and two 0 to 10 V analogue inputs.

Technical specifications of the TM221CE40R

Relay outputs and power of the TM221CE40R

Supply voltage: 100 to 240 V AC. Supply voltage limits: 85 to 264 V. Network frequency: 50/60 Hz. Discrete inputs: 24, discrete input IEC 61131-2 Type 1. Discrete outputs: 16 relay. Discrete I/O: 40. Analogue inputs: 2 0 to 10 V. Input resolution: 10 bits. Input voltage: 24 V. Output type: Relay normally open. Output voltage: 5 to 125 V DC; 5 to 250 V AC. Output current: 2A. Ethernet: 10BASE-T/100BASE-TX 1 100 m copper cable. Communication protocols: USB port USB – SoMachine-Network; Non isolated serial link Modbus master/slave – RTU/ASCII or SoMachine-Network; Ethernet. Output current: 0.52 A 5 V expansion bus; 0.24 A 24 V expansion bus. Output voltage: 125 V DC; 277 V AC. Mechanical durability: 20000000 cycles relay output. Electrical durability: 100000 cycles AC-12, 120 V, 240 VA, resistive; 100000 cycles AC-12, 240 V, 480 VA, resistive; 300000 cycles AC-12, 120 V, 80 VA, resistive.

The relay outputs switch 5 to 125 V DC or 5 to 250 V AC, with 2 A per output and a maximum of 7 A per common group. Relay response is about 10 ms, so they are not for fast pulse tasks; the datasheet shows fast inputs for counting but no fast outputs on this model.

Power comes from 100 to 240 V AC with limits of 85 to 264 V and 50/60 Hz, with an inrush of 40 A. Consumption is 41 VA without expansion and 70 VA with the maximum expansion, and the controller provides 0.52 A at 5 V and 0.24 A at 24 V for the expansion bus.

Choosing between relay and transistor models

A relay controller removes the need for separate supply for outputs and allows mixed voltages on one controller. It is robust against wiring errors, but relays wear with each switch and the life depends on the load, so heavy and fast cycles should use transistor models such as the TM221CE24T.

The 40 I/O size is the largest compact base in the family, and with TM3 modules it can reach a system of over a hundred points. Compared with the 16 I/O TM221M16R, it has three times as many inputs and is intended for larger small machines.

Selection checklist for the TM221CE40R

• Supply: 100 to 240 V AC without a separate power supply.
• I/O: 24 inputs and 16 relay outputs.
• Load type: resistive or inductive, 2 A per output, 7 A per group.
• Output life: estimate switching frequency and use a suppressor on inductive loads.
• Communication: Ethernet, plus serial options as listed in the datasheet.
• Expansion: TM3 modules and cartridges as needed.

Installation and service of the TM221CE40R

Mount on DIN rail or panel with clearance for ventilation and keep the AC mains wiring separate from DC signal cables. Use the supplied terminals for the right wire size, and mark every cable at both ends.

Relay outputs are the first item to wear. Keep a spare, record operation counts of heavy outputs, and consider a plug-in relay stage for loads that switch often.

Typical applications of the TM221CE40R in Oman and the GCC

In Oman and the GCC, AC-powered M221 controllers suit pump stations, HVAC plant rooms, gates and workshop machinery, where 230 V is readily available and loads are switched directly. Voltage fluctuations and surges should be considered with a surge protector at the panel.

Dimensions, environment and approvals of the TM221CE40R

For the TM221CE40R, plan the mounting space from the datasheet: 160 mm (W) x 90 mm (H) x 70 mm (D). The TM221CE40R weighs 0.456 kg. Mounting, derating and enclosure choices follow the environmental data below, which should be compared with the actual panel temperature and the dust and humidity of the site in Oman and the GCC.

Ambient temperature limits in the datasheet: -10 to 55 °C horizontal installation. Relative humidity: 10 to 95 %, without condensation in operation; 10 to 95 %, without condensation in storage. Ingress protection: IP20 with protective cover in place. Operating altitude: 0 to 2000 m. Vibration resistance: 3.5 mm 5 to 8.4 Hz symmetrical rail; 3.5 mm 5 to 8.4 Hz panel mounting; 1 gn 8.4 to 150 Hz symmetrical rail; 1 gn 8.4 to 150 Hz panel mounting. Shock resistance: 98 m/s² 11 ms. Standards listed: IEC 61131-2; UL 508; CAN/CSA C22.2 No. 213; IACS E10; ANSI/ISA 12-12-01. Certifications listed for this reference: DNV-GL; EAC; ABS cULus; LR; RCM; CE; UKCA cULus HazLoc.

Information to send with an RFQ for the TM221CE40R

• Full reference and quantity required
• Existing equipment, panel or rack it must fit
• Supply voltage, load or signal details of the application
• Required delivery location and timing
• Whether a spare, a replacement or a new installation

Documents and quotation

A datasheet for this product is attached on this page. It lists the electrical, mechanical and environmental data summarised above.

Send us the part number, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and does not represent itself as an official channel of the manufacturer.