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Delta AC MAX 22kW

Strengths

  • ✓ Solar integration - CT clamp, any inverter
  • ✓ RFID access control
  • ✓ 22kW 3-phase
  • ✓ 3yr warranty
  • ✓ Delta commercial heritage
  • ✓ IP55 outdoor rated

Watch out for

  • ✗ No OCPP
  • ✗ $1,990 - $590 more than Sigenergy 22kW with fewer features
  • ✗ No load management
  • ✗ Socket-only
  • ✗ Expensive for feature set

Delta

AC MAX 22kW

22 kW 3-phase Level 2 EV charger with tethered cable

$1,990 AUD

Model

AC MAX 7kW — $1,495 AC MAX 22kW

Our Verdict

The Delta AC MAX 22kW brings solar integration, RFID, and a 3-year warranty to a 22kW platform at $1,990 - $190 more than the Fronius Wattpilot ($1,800) without the Fronius's OCPP capability. Against the Sigenergy 22kW ($1,400): Delta is $590 more without OCPP or load management. The Delta's value proposition is RFID access control on a 22kW solar unit, which no other charger combines at any price in Australia. For installations where RFID + solar + 22kW is the specific requirement, it is the only option.

22 kW3-phaseType 2TetheredIP55
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Key Features
Max Output 22 kW
Phases 3-phase
Smart Charging Yes
Solar Integration Yes
App Control Yes
OCPP Yes
Specifications
Type
Level2-22kW
Max Output
22 kW
Phases
3-phase
Connector
Type 2
Tethered Cable
Yes
Smart Charging
Yes
App Control
Yes
Solar Integration
Yes
Scheduling
Yes
Load Management
Yes
OCPP
Yes
IP Rating
IP55
Warranty
2 years
Installation
Licensed electrician
Compatible Vehicles
All Type 2 EVs
Warranty & Installation
✓

2-year warranty — contact the manufacturer or installer for full warranty terms.

✓

Professional installation required — must be installed by a licensed electrician under Australian wiring rules.

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IQ Wallbox 22kW

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Overview

The Delta AC MAX 22kW occupies a specific niche: it is the only 22kW solar-capable EV charger in Australia with RFID access control. If that combination is your requirement, Delta is the only product that delivers it.

For all other buyers, the Fronius Wattpilot ($1,800) is $190 cheaper and adds OCPP and load management that the Delta lacks. The Sigenergy 22kW ($1,400) is $590 cheaper with OCPP, solar, and load management.

Who should buy the Delta AC MAX 22kW

Best for:

  • Installations specifically needing 22kW + solar + RFID (no equivalent alternative exists)
  • Semi-commercial or strata properties with shared three-phase supply and access control requirements
  • Buyers who want Delta’s commercial engineering heritage on a 22kW residential unit

Skip if:

  • OCPP needed - Sigenergy or Fronius Wattpilot
  • Load management needed - Sigenergy or Fronius
  • Budget is a concern - Sigenergy 22kW at $1,400 covers solar + OCPP + load management for $590 less

Frequently Asked Questions

01 Delta AC MAX 22kW vs Fronius Wattpilot Home 22J?

Delta ($1,990): solar, RFID, 3yr warranty, no OCPP, no load management. Fronius ($1,800): OCPP, solar (native Fronius API + CT clamp), load management, 2yr warranty. Fronius is $190 cheaper and adds OCPP and load management. Delta adds RFID. Unless RFID is specifically needed, the Fronius Wattpilot is the better 22kW solar charger.

02 What is the total installed cost of the Delta AC MAX 22kW?

Supply price $1,990 plus 3-phase installation of $600–$1,000. Total all-in approximately $2,590–$2,990. A Type 2 cable adds $80–$120.

03 Does the Delta AC MAX 22kW have OCPP?

No. The Delta AC MAX 22kW does not support OCPP. For 22kW with OCPP, the Sigenergy 22kW ($1,400) or Fronius Wattpilot ($1,800) are the options.

04 What makes the Delta AC MAX unique at 22kW?

It is the only 22kW solar EV charger in Australia with RFID access control as standard. No other 22kW charger (Fronius, Sigenergy, Zappi, Wallbox) combines solar integration with RFID at 22kW. For installations where both are needed, Delta is the only solution.

05 Is the Delta AC MAX 22kW appropriate for residential use?

For single-family homes: the price premium over Fronius or Sigenergy is hard to justify unless RFID is needed. For semi-commercial, strata, or shared installations where 22kW charging and RFID access control are both required, it fills a genuine gap.

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