Delta AC Max
Delta's compact 22 kW-capable wallbox with IP55, IK09 and a DIP-switch current limit.
Quick Verdict
Pros
- IP55 / IK09, fine for an outdoor wall
- Low 3.6 W standby draw
- Current set by an 8-step DIP switch, easy to match your DB
- Smart version has Wi-Fi, Ethernet and a cellular modem
- RS485 Modbus for energy management
Cons
- Very expensive in Malaysia at the only listed seller
- BuyEV listing is pre-order
- Basic version uses a key switch, not RFID
- 6 kg with cable, heavier than most
Key Specs at a Glance
Full Technical Specifications
| Specification | Details |
|---|---|
| Power output | 3.7 / 7.4 kW single-phase · 11 / 22 kW three-phase |
| Max current | 16 A or 32 A per phase; 8-step DIP switch |
| Voltage | 230 V / 400 V |
| Connector | Type 2 plug, Type 2 socket, or socket with shutter |
| Cable length | 5 m (plug models) |
| Connectivity | Bluetooth; Smart adds Wi-Fi, Ethernet, cellular |
| App | Delta app (configuration and monitoring) |
| OCPP | Smart version for back-end integration (confirm OCPP version with seller) |
| Load balancing | Modbus RTU over RS485 |
| User authentication | Key switch (Basic); app on newer firmware |
| Display | 4-colour status LED |
| Electrical protection | RCD Type A 30 mA + RDC-DD 6 mA DC; surge, over-temp, short circuit |
| Weatherproof rating | IP55 / IK09 |
| Dimensions | 218 × 371 × 167 mm |
| Weight | 6.0 kg incl. cable |
| Operating temperature | −30 °C to 50 °C |
| Certification | IEC 61851-1, IEC 62196-2, IEC 62955 |
| Warranty | 2 + 1 years per BuyEV |
Will it work with my EV?
Yes. The AC Max charges through Type 2, as a tethered plug or a socket, so any EV sold in Malaysia works.
Your actual charging speed will depend on the lower of two limits: the charger’s rating and your car’s onboard AC charger (many EVs cap AC charging at 7 kW or 11 kW, so a 22 kW wallbox won’t push them any faster).
Will it work with my home?
On single-phase, the AC Max runs at 7.4 kW (32 A), which covers most landed homes.
Installing the 11 kW or 22 kW version requires a three-phase electrical supply. Having three-phase isn’t the end of it. Your installer still has to check there’s spare capacity once the aircons and water heater are counted.
Charging Speed & Overnight Time
On single-phase, a 7.4 kW unit adds roughly 35 to 40 km of range per hour. Plug in after dinner and most cars are full by morning.
Faster only counts if your car and your DB can both take it. For daily driving, 7.4 kW overnight is plenty.
| Power Rating | Est. Speed (km/hr) | 0–100% (60 kWh Battery) |
|---|---|---|
| 7.4 kW (Single-phase) | ~35–40 km/hr | ~8–9 hrs |
| 11 kW (Three-phase) | ~55–60 km/hr | ~5–6 hrs |
| 22 kW (Three-phase) | ~110–120 km/hr | ~3 hrs |
Total Installed Price in Malaysia
- Charger unit
RM11,629 list (BuyEV) - Standard installation
RM800–1,200 - Long cable run >10m
+RM300–600 - DB box upgrade
+RM500–1,000 - Three-phase supply upgrade
+RM2,000–5,000 - Concealed wiring
+RM500–1,500 - Estimated all-in
RM10,466 incl. install (BuyEV promo) - Your real price depends on your home. Get quotes from installers.
Find an installer →
Installation & Safety
A good charger badly wired is still a bad charger. For the Delta AC Max, a proper job includes:
- A dedicated EV circuit originating from your distribution board (DB).
- Cable sized for hours at full load. A 32 A charger runs flat out all night, so undersized wire will cook.
- Proper earthing and surge/circuit protection.
- A load check before anything is drilled, so you know your supply can carry it.
- Full testing and compliance with Suruhanjaya Tenaga (Energy Commission) EVCS guidelines.
- Assistance with TNB application (if supply upgrades are needed).
Smart Features
- Current limit: 8-step DIP switch inside the unit
- Bluetooth setup: configure and update firmware from your phone
- Energy management: Modbus RTU over RS485
- Smart version: Wi-Fi, Ethernet and built-in cellular modem
- Low standby: 3.6 W when idle
Dynamic Load Balancing
The AC Max talks to an energy management system over RS485 (Modbus RTU). With a meter on your main supply, the system can cut charging current when the house is busy. Ask your installer whether that kit is included.
Cable & Everyday Convenience
Plug models have a 5m tethered Type 2 cable. Socket models need your own cable. Mount it so the cable reaches the car without lying across the driveway.
Weather & Durability
IP55 and IK09. It’s built for outdoor walls. Still, under the porch roof is better for the long run in our sun.
App User Experience
Basic units use Bluetooth and a phone app for setup and firmware. The Smart version adds Wi-Fi, Ethernet and cellular so it can stay online for monitoring.
Is the Delta AC Max right for you?
Single-phase landed home
Three-phase landed home
Small office or condo
Ready to get quotes?
Get quotes from verified installers across Malaysia who supply and fit Delta AC Max.
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Read review →Frequently Asked Questions
Yes, on three-phase with spare capacity. Single-phase homes get 7.4 kW from the same unit.
Yes. It charges through Type 2, the standard on every EV sold in Malaysia. Real speed is the lower of the charger rating and your car's onboard AC charger, usually 7 to 11 kW.
Most terrace and semi-D homes are single-phase, which tops out at 7.4 kW. Three-phase is more common in bigger or newer homes. Your TNB meter or installer can tell you.
At 7.4 kW, about 35 to 40 km of range per hour. A 60 kWh battery goes from 20% to 80% in roughly 5 hours.
BuyEV lists the 22 kW at RM11,629, or RM10,466 including its standard single-phase install. It's pre-order only. That's the only Malaysian price we found, so ask other Delta resellers too.
Yes, IP55 and IK09, so rain and knocks are covered. Shade from afternoon sun helps the plastics last.
BuyEV lists 2 + 1 years. Confirm in writing what the extra year covers.