ENMG / ENCLOSURE DEHUMIDIFIERS
HAD-350A
Integrated cabinet dehumidifier and heater
An integrated Peltier condensation dehumidifier with power supply, humidity/temperature control, PTC heating and RS485 monitoring for electrical enclosures.
Request a quote ↗TECHNICAL DATA / HAD-350A
Specifications & selection.
- 1000 mL/day at35 °C and85% RH.
- Continuous condensate drainage outside the cabinet.
- Independent humidity and temperature hysteresis control.
| Parameter | Specification |
|---|---|
| Supply | 100–240 VAC,50/60 Hz |
| Dehumidification input | 350 W maximum |
| PTC heater | 300 W at220 V;230 W at110 V |
| Standby | 1.5 W in prose |
| Water removal | 1000 mL/24 h at35 °C,85% RH; approximately840 mL/day at35 °C,75% RH |
| Enclosure size | 5 m³ recommendation, dependent on moisture ingress and conditions |
| Humidity measurement | 0–99% RH;±2% RH |
| Temperature measurement | −40 to +120 °C;±1 °C |
| Operating ambient | −20 to +60 °C |
| Altitude / pressure | ≤3000 m /80–110 kPa; verify derating at altitude |
| Protection / mass | IP20 /approximately4.1 kg |
| Parameter | Value |
|---|---|
| Main vertical body length | 299 mm, excluding drain extension |
| Overall bracket width / depth | 149.3 mm /173.1 mm |
| Body width | 105 mm |
| Mounting centers | 132 mm horizontally;156 mm vertically for illustrated center slots |
| Fastening | M4; verify chosen slot pattern in delivered drawing |
| Air clearance | At least80 mm from adjacent equipment |
| Drain fitting | SUS304 barbed,Ø7 mm maximum outside;Ø5 mm bore |
| Hose in current prose | 2 m;ID6±0.2 mm,OD9±0.2 mm |
| Orientation | Vertical, drain downward; continuously falling hose to outside cabinet |
| Menu | Function | Default |
|---|---|---|
| E1 /E2 | Humidity start /stop;E1>E2 | 75 /65% RH |
| E3 | Humidity offset,−10 to+10% RH | 0 |
| E4 /E5 | Heating start /stop;E5>E4 | 5 /15 °C |
| E6 | Temperature offset,−10 to+10 °C | 0 |
| E7 | Fan stop delay,1–60 min | 5 min |
| E8 | Device address,1–128 | 1 |
| E9 | Baud rate9600/4800/2400 | 9600 |
| Position | Connection |
|---|---|
| 1 /2 /3 | External humidity/temperature sensor:brown /black /blue |
| 4 /5 | RS485 A(D+) /B(D−) |
| 6 | Protective earth PE |
| 7 /8 | AC line L /neutral N |
| Address | Value | Conversion |
|---|---|---|
| 0x0000 | Power state | 0=off,1=on |
| 0x0001 | Ambient humidity | raw/10, %RH |
| 0x0002 | Ambient temperature | raw/10−50, °C |
| 0x0003 | TEC temperature | signed16-bit raw/10, °C |
| 0x0004 | Output/mode state | Bits0/1:dehumidify/heat outputs;bits4/5:modes; confirm write semantics |
| 0x0005 | Fault bits | Bit0:sensor;1:NTC;2:TEC;3:fan |
Selection & installation notes
- The source prose incorrectly calls156 mm the horizontal mounting spacing. The original drawing shows it vertically, with132 mm horizontal centers. Confirm the supplied drawing before drilling.
- The wiring illustration says110–220 VAC, while the technical table and prose say100–240 VAC. Verify the delivered nameplate. Heater power is separate from the350 W dehumidification figure; confirm simultaneous total input and fuse sizing.
- Hose and display specifications differ by source: the older image saysD8 mm hose and resolution1.0; current prose specifies6/9 mm hose and0.1 °C/1% RH display. Match the actual supplied fitting and firmware.
- Removal capacity falls as air becomes cooler or drier. The5 m³ recommendation is not a guarantee for leaky enclosures or very low humidity; the source discourages operation below15 °C with target humidity below35% RH.
- Keep condensate outside the enclosure, prevent backflow and avoid open trays inside the cabinet. Connect PE and separate mains, sensor and RS485 wiring.
- Protocol uses8N1 and CRC low byte first. Reads use0x03; writes require the firmware-specific map. Source0x10 is restricted to exactly seven registers0x0006–0x000C; the device may silently ignore invalid requests.
- Settings-temperature registers use a different offset from ambient-temperature readings. Do not copy a readout conversion into a write command.
- Double-clicking Return restores factory settings; record commissioned parameters first. Resolve THD,NTC,FAN orTEC alarms before restarting.
Based on the official Chinese product page and selection charts ↗. Checked 2026-09-15. Confirm the current specification for the exact model when ordering.
TECHNICAL RESOURCES
Plan your integration.
ENMG cabinet environment systems — English product-family brochure.
This is a product-family brochure. Request a model-specific datasheet and installation drawing with your inquiry.