
MM-20MR-6MT-FE400-FX-A 4″ Industrial HMI Panel
4″ TFT HMI, 480×272 resolution, USB & TTL interface, CE & IP65 certified, ideal for industrial automation.
MM-20MR-6MT-FE400-FX-A 4.0-inch Industrial HMI Touchscreen
Product Overview:
The MM-20MR-6MT-FE400-FX-A is a durable and efficient 4-inch industrial HMI with USB/TTL connectivity, making it ideal for control cabinets and compact automation applications. Engineered for reliability and certified for safety, it ensures smooth integration in industrial environments.
Product Features:
✔ Display: 4″ TFT LCD, resolution 480×272 pixels, brightness 250cd/m², viewing area 73mm × 54mm.
✔ Touchscreen: 4-wire resistive touch (4H), designed for precise industrial use.
✔ System Specs: Powered by A8 800 MHz RISC CPU, includes 128M FLASH and 512KB recipe memory with real-time clock.
✔ Interface: Mini USB for programming, internal TTL port, USB HOST supports mouse input.
✔ Power & Protection: Runs on DC24V (range DC15V–DC28V), insulation >50MΩ@500VDC, 500VAC withstand voltage.
✔ Design: Grey fireproof ABS enclosure, dimensions 116×102×45mm, cutout size 107×94mm.
✔ Environmental Adaptability: 0–45℃ working temperature, 10–90%RH humidity, vibration resistant (2G/30min), fanless cooling.
✔ Certifications: IP65-rated front panel, CE certified (EN61000-6-2:200S).


MM-20MR-6MT-FE400-FX-A
| Parameter | Details |
|---|---|
| Product Model | MM-20MR-6MT-FE400-FX-A |
| External Dimensions | 116mm × 102mm × 45mm |
| Cutout Dimensions | 107mm × 94mm |
| Screen Model | FE400A (YKBuilder 5.3) |
| Screen Size | 4″ TFT (73mm × 54mm) |
| NPN Input Channels | 12 channels |
| Transistor Outputs | 6 channels (Generates pulses without resistors; compatible with transistor or relay amplifier boards for general output use) |
| Additional Transistor Outputs | 8 channels |
| Analog Inputs | 0 |
| Analog Outputs | 0 |
| Temperature Inputs | 0 |
| Power Supply | 24V, 3A power supply |

MM-20MR-6MT-FE400-FX-A 4″ USB Industrial HMI
4″ TFT HMI panel with USB/TTL, 480×272 resolution, IP65 front, CE certified, for industrial automation.
MM-20MR-6MT-FE400-FX-A 4-inch Industrial USB HMI Panel
Product Overview:
The MM-20MR-6MT-FE400-FX-A is a compact 4-inch HMI display engineered for automation tasks requiring space-saving design and durable construction. With USB and TTL communication support, it’s a plug-and-play solution for small industrial control systems.
Product Features:
✔ Display: 4″ TFT LCD with a 480×272 resolution and 250cd/m² brightness; display area: 73mm × 54mm.
✔ Touch Control: 4-wire resistive touchscreen (4H) for reliable and precise input.
✔ Hardware: Equipped with A8 800 MHz RISC processor, 128M FLASH, real-time clock + 512KB recipe memory.
✔ I/O Interfaces: Mini USB for programming, internal TTL communication, USB HOST supports mouse usage.
✔ Power Specs: Operates on DC24V (range DC15V–DC28V), insulation resistance >50MΩ@500VDC, withstand voltage: 500VAC.
✔ Construction: Durable fire-retardant ABS casing in gray, dimensions 116×102×45mm, panel cutout 107×94mm.
✔ Environmental Suitability: Works in 0–45℃ with 10–90% RH (non-condensing), anti-vibration 2G, air-cooled system.
✔ Certifications: IP65 front panel protection, CE certified (EN61000-6-2:200S).
MM-20MR-6MT-FE400-FX-B
| Parameter | Details |
|---|---|
| Product Model | MM-20MR-6MT-FE400-FX-B |
| External Dimensions | 116mm × 102mm × 45mm |
| Cutout Dimensions | 107mm × 94mm |
| Screen Model | FE400A (YKBuilder 5.3) |
| Screen Size | 4″ TFT (73mm × 54mm) |
| NPN Input Channels | 12 channels |
| Transistor Outputs | 6 channels (Generates pulses without resistors; compatible with transistor or relay amplifier boards for general output use) |
| Additional Transistor Outputs | 8 channels |
| Analog Inputs | 2 channels (0-10V → 0-4095) |
| Analog Input Addresses | D110, D111 |
| Analog Outputs | 2 channels (0-10000 → 0-10V) |
| Analog Output Addresses | D126, D127 |
| Temperature Inputs | 2 channels (NTC 10K, -50°C to 150°C) |
| Temperature Input Addresses | D124, D125 |
| Power Supply | 24V, 3A power supply |