- Spring clamp type, 4 points, independent (plus common), Unit with relay modules (24 V DC, NO contact)
FA1-TH4X24RA1L20S1E
- Features
- Specifications
- External Dimensions・
Product CAD Data - Wiring diagrams and connection examples・
Note - Catalogs・
New Product Releases - Manual
- Technical information
(Technical News) - Downloads
- Video
- Related products
Features
-
- Product overview:
-
Digital signals from a programmable controller can be converted to
signals suitable for the connected devices such as a Push-button switch.
One terminal module can be connected to different loads of common.
- Merit.1
- Digital signals from a programmable controller can be converted to
signals suitable for the connected devices such as a Push-button switch.
One terminal module can be connected to different loads of common.
- Merit.2
- When a 64-point input module is used, input conversion for a maximum of 64 points can be made per one slot.
- Merit.3
- Sockets enable modules to be replaced individually. (Easy maintenance)
- Merit.4
- The spring clamp terminal block does not require screws.
Wires can be easily pushed into the conductive terminals without using
a screwdriver.

| Sales status | On sale |
|---|
Basic specifications
| Item | Specifications | |
|---|---|---|
| Model | FA1-TH4X24RA1L20S1E | |
| Category | Time and wire saving devices | |
| Connected device | Programmable controller | |
| Series of connected devices | MELSEC iQ-R | |
| MELSEC iQ-F | ||
| MELSEC-Q | ||
| MELSEC-F | ||
| MELSEC-L | ||
| Product category | Digital signal converter (terminal module) | |
| Terminal block type | Spring clamp type | |
| Delivery date | - | |
Specifications
General specifications
| Item | Specifications | |
|---|---|---|
| Operating ambient temperature | -20 to 55℃*4 | |
| Storage ambient temperature | -25 to 75℃ | |
| Operating ambient humidity | 5 to 95%RH, no condensation | |
| Storage ambient humidity | 5 to 95%RH, no condensation | |
| Vibration resistance ( With intermittent vibration ) | 5 to 8.4Hz : Half amplitude 3.5mm | |
| 8.4 to 150Hz : Acceleration 9.8m/s2 | ||
| Number of sweeps : 10 times in each direction X, Y, and Z | ||
| Vibration resistance ( With continual vibration ) | 5 to 8.4Hz : Half amplitude 1.75mm | |
| 8.4 to 150Hz : Acceleration 4.9m/s2 | ||
| Shock resistance | 147m/s2, 3 times in each direction X, Y, and Z(Applicable standards : IEC61131-2) | |
| Operating atmosphere | Free of corrosive gases | |
| Operating altitude *1 | 2000m or less | |
| Installation location | Inside control panel*5(Indoor use) | |
| Overvoltage category *2 | II or less | |
| Pollution degree *3 | 2 or less | |
| Precautions | *1 Do not use or store the module under pressure higher than the atmospheric pressure at an altitude of 0 meters. Doing so may cause malfunction. | |
| *2 This indicates the assumption that the equipment is connected to a power distribution system, ranging from a public electrical power distribution network down to machinery within the premises. | ||
| *3 This index indicates the degree to which conductive material is generated in terms of the environment in which the equipment is used. | ||
| *4 Use the digital signal converter within the specifications of the programmable controller being used. | ||
| *5 The enclosure is suitably designed for those specific environmental conditions, as applicable, and enclosure rate meets IP20 and minimum type 1 of UL 50. | ||
Product specifications
| Item | Specifications | |
|---|---|---|
| Connected programmable controller | Positive common, 24VDC input module | |
| No. of points | 4 | |
| Isolation method | Relay | |
| Rated input voltage/current | Voltage: 24 V DC (CLASS 2 or SELV + LIM), Current: Approx. 10 mA (24 V DC) | |
| Maximum number of simultaneous on points | 100% (5-directional attachment) | |
| On voltage/On current | 19.2 V DC or more/8.1 mA or more | |
| Off voltage/Off current | 2.4 V DC or less/1.0 mA or less | |
| Input impedance | Approx. 2.2 kΩ | |
| Response time ( Off → On ) | 10ms or less (excluding programmable controller response time) | |
| Response time ( On → Off ) | 12ms or less (excluding programmable controller response time) | |
| Minimum switching load | 24VDC, 1mA or more | |
| Maximum switching frequency | 1800 times/hour (ON for 1 second or more and OFF for 1 second or more) | |
| Mechanical life | 20 million times or more | |
| Electrical life *1 | 24 V DC 100 mA for one hundred thousand times or more (contact side) | |
| Wiring method for common | Independent common ( Positive common input type ) |
|
| External power supply | 24 V DC +-10% (ripple rate within 5%, CLASS 2 or SELV + LIM) | |
| Module current consumption | Approx. 10 mA at 24 V DC (not including programmable controller current draw) | |
| Withstand voltage, insulation resistance | Between inputs and between external power supply and input: 510 V AC rms/min. (altitude 0 to 2000 m) for one minute, 10 MΩ or more | |
| Noise immunity | Simulator noise 500 Vp-p, noise width 1 us (measured by a noise simulator with a noise frequency of 25 to 60 Hz) | |
| Operation display | The LED is lit when the power and input turn ON.*4 | |
| Socket | Attached (relay modules replaceable) | |
| No. of times to replace module | 50 | |
| Module mixing | Possible | |
| Number of terminals | 16 points (power supply: 4 points, input: 12 points) | |
| Applicable wire *2 | Without ferrule Stranded or solid wire: 0.2 to 1.5 mm2 (24 to 16 AWG) With ferrule Stranded or solid wire: 0.08 to 0.75 mm2 (28 to 18 AWG) |
|
| Wire strip length | 8mm | |
| Module installation *3 | Screw type | M4 × 0.7 mm × 22 mm or longer Tightening torque: 78 to 118 N-cm (8 to 12 kgf-cm) |
| DIN rail | Applicable DIN rail: TH35-7.5Fe, TH35-7.5AL (JIS C 2812 compliant) | |
| Weight | Approx. 105 g | |
| Precautions | *1 Evaluation for UL certification is conducted 6000 times. | |
| *2 For UL certification, suitable for field wiring when a ferrule is not used. | ||
| *3 Evaluation for UL certification is conducted a DIN rail installation. | ||
| *4 When the power is off, the "PW" LED may light up for a while. | ||
External Dimensions・Product CAD Data
External Dimensions
Product CAD Data
Wiring diagrams and connection examples・Note
Wiring diagrams and connection examples
N/A
| Name | Filename |
|---|
Other Technical Information
N/A
| Name | Filename |
|---|
Precautions for use
N/A
| Name | Filename |
|---|
Catalogs・New Product Releases
* The table can be scrolled to the right.
| Name | Language | Document No. | Release date |
|---|---|---|---|
| Digital Signal Converters (Terminal Modules)(3MB) | English | MEIC224E_226-C | February 2025 |
| 数字信号转换器(终端模块)(3MB) | Simplified Chinese | MEIC234C_236-A | February 2025 |
| FA Goods General Catalog Digest edition(23MB) | English | MEIC198E_209-C | October 2025 |
| FA关联产品 综合目录 摘要版(23MB) | Simplified Chinese | MEIC199C_209-C | October 2025 |
| FA Goods General Catalog Time and Wire Saving Devices(82MB) | English | MEIC202E_20Z-F | October 2025 |
Manual
* The table can be scrolled to the right.
| Name | Language | Document No. | Release date |
|---|---|---|---|
| User's Manual(4MB) | English | 50D-FG0233E-C | June 2022 |
Technical information(Technical News)
N/A
* The table can be scrolled to the right.
| Name | Language | Document No. | Release date |
|---|
Downloads
N/A
Profile/module FB (function block)
| Name | Filename |
|---|
Control & Communication System Profile CSP+
| Name | Filename |
|---|
Sample program
| Name | Filename |
|---|
Video
N/A
Related products
Connection cables
| Model | Length | Name | Overview |
|---|
Related products
N/A