The electric vehicle (EV) industry is one of the fastest growing industries in the world. Governments at all levels, businesses and the public are steering towards EVs in record numbers and EV charging solutions are a high priority.

NHP’s dedicated EV team has years of experience in this field and are here to support you in determining the right EV charger for your particular installation or project.

NHP offers a range of EV chargers from the flexible and attractively designed Delta AC Max, to the strong and robust steel cased Delta DC Wallbox and DC City Charger.


We can also support you with extended warranty solutions, service and maintenance packages and even cloud-based solutions to enable the end user to pay or charge for the electricity used.

Finally, NHP makes installation easy by offering everything you will need upstream, enabling quick and simple implementation of your installation or project.



Delta

EV charging solutions and downloads

  • Delta AC Max
  • Delta 25kW DC Wallbox
  • Delta DC City Charger 50kW and 100kW
  • Delta 50kW DC Wallbox

Elegantly designed, flexible, practical, efficient and fast, the Delta AC Max 22kW is a market leader in both function and appearance. Finished in a matt case (not gloss) with an IP55/IK09 rating, the AC Max is one of the most robust AC EV chargers on the EV market and ideal for both indoor or outdoor applications. It is well suited for commercial requirements and also if you are looking for a home EV charger.

The Delta AC Max is a single and three phase compatible EV charger in one, meaning greater flexibility. Input wires can enter the charger from various points, enabling easier installation, regardless of concrete walls, plaster/timber walls or steel posts.

The Delta AC Max Smart also includes an in-built modem with Ethernet/Wi-Fi/SIM card slot connection types. This enables the charger to connect to all third party cloud-based platforms via its OCPP 1.6J communication protocol.




View range and availabilityAC Max Firmware Library

AC-MAX_Photo_EU_Frontleft


Durable, reliable and commercial grade, the Delta DC Wallbox 25kW is one of the best selling, low powered DC EV chargers available in New Zealand.

The Delta DC Wallbox 25kW is popular for its easy installation, limited power consumption and reduced upgrades required to the premises. It offers fast charging for those seeking value.

Available with CCS2 and CHAdeMO plug types, the Delta DC Wallbox 25kW will suit all current EV vehicle types, as well as some PHEVs. Cable lengths are available from 4 metres, which is ideal for carparks, while the optional 7 metre cable length is ideal for automotive service centres, councils, utilities and heavy commercial/mining environments.

Air-cooled, steel cased and with an IP55/IK10 rating, the Delta DC Wallbox 25kW is capable in most weather and operating conditions. It will run at full capacity up to 50oC and will continue to operate at reduced performance to 60oC. A truly robust EV charger for New Zealand’s aggressive climate.

The Delta DC Wallbox 25kW also features Ethernet and SIM card connectivity to allow connection to third-party cloud based billing platforms via OCPP 1.6J.



View range and availabilityDCWB Firmware Library
DC-Wallbox-25kW 


Contains the technical specifications of the DC Wallbox. It also has the part numbers for each variant for easy ordering.

Delta DC Wallbox 25kW Specifications

This installation and operation manual will show you the installation requirements for an DC Wallbox with network communications.

Delta DC Wallbox 25kW Installation Operating Manual

Designed to help inform you of the benefits of the DC Wallbox. It addresses the three DC Charging plug types (CHAdeMO, CCS1, CCS2), charge rates, upstream protection, and use cases.

DC Wallbox Selection Guide

Durable, reliable and commercial, the Delta DC City Charger is as strong and robust as EV chargers get and is ideal for urban and rural environments.

Air-cooled, steel cased and with an IP55/IK10 rating, the Delta DC City Charger is capable in most weather and operating conditions. It will run at full capacity up to 50oC and will continue to operate at reduced performance until 60oC. A truly robust EV Charger for New Zealand’s intense climate.

Available with CCS2 + CCS2 or CCS2 + CHAdeMO plug combinations, the Delta DC City Charger will suit all current EV vehicle types, as well as some PHEV. Variable cable lengths are also available.

The DC City Charger features split-load charging ability. The DC City Charger 50kW can deliver 100% power through one plug, or 50:50 through two plugs. The DC City Charger 100kW features a dynamic split load function, which allows 100:0 / 75:25 / 50:50.

Another unique feature of the City Charger is also the addition of an inbuilt 22kW AC port, allowing for a third vehicle to charged from the City Charger. The third AC port provides on-top power, over and above the 50kW or 100kW DC configuration.

The Delta DC City Charger also features Ethernet and SIM card connectivity to allow connection to third-party cloud based billing platforms via OCPP 1.6J.

If you are looking for EV chargers in New Zealand, you can’t go past Delta EV chargers from NHP.



DC-City-Charger

The Delta 50kW DC Wallbox EV Charger is a new and innovative solution for electric vehicle charging. It offers fast, convenient, and sustainable charging with a compact and versatile design.

It can be installed on a wall or a pedestal, and it has network connectivity for easy integration with other systems. It also has a high efficiency of more than 96%, which reduces energy consumption and costs. The Delta 50kW DC Wallbox EV Charger is the ultimate choice of your electric vehicle charging needs.

The Delta DC Wallbox 50kW features dual CCS2 plugs as standard, allowing you to charge one vehicle at up-to 50kW, or two vehicles at up-to 25kW. To further enhance this exciting product, the Delta DC Wallbox is also available with a 72kW output, allowing up to three vehicles to be charged at once utilising its third AC 22kW Type 2 plug.




DC-City-Charger

Resources and downloads


For further information on the extensive range of Electric vehicle charging, please contact your local NHP Account Representative or call us on 0800 NHP NHP.


Frequently Asked Questions:

AC Max
  • What upstream protections are required for the Delta AC Max?

    Delta AC Max comes with internal residual current detection up to 30mA (AC) and 6mA (DC), so a Type B RCD is not necessary. In line with AS/NZS3000 appendix P, NHP recommends using an appropriate overload protection in conjunction with Type A RCD or a RCBO Type A upstream when installing an AC Max.

    AC Max can be connected in single or three phase.


    Product

    RCBO

    MCB

    RCCB

    Single phase (7.36kW)

    AC Max

    MOD6RCBO24030A

    DTCB6140C

    DSRCD24030A


    Three phase (22kW)

    AC Max

    M6RCBF3230A

    DTCB6340C

    DSRCD44030A


    *Limit the current output to 30A on the charger when using M6RCBF3230A.


    As a safe installation practice and to support safe maintenance practice, NHP recommends that an isolator is installed upstream of the AC Max.

    Product

    Isolator

    Single phase (7.36kW)

    AC Max

    NL140L


    Three phase (22kW)

    AC Max

    ISOSW432PG


    All products listed above are for direction only, more products to suit this application are also available from NHP.

  • Which EV charger is the most suitable for a home installation?

    If you are looking for an EV home charger, the AC Max is the best option, a future proof product for residential space……


    The AC Max is the best option for home use, a future proof product for residential space as it is designed in a way that it can be connected single or three phase depending on what's available at home. The AC Max has internal dip switches that allow the charger to limit how much current it requires so it can match how much the site can supply.

    AC Max can be wired in several ways, such as:

    • Single phase at up to 7.4kW, delivering up to ~40km of range per hour plugged in.
    • Three phase at up to 11kW, delivering up to ~60km of range per hour plugged in.
    • Three phase at up to 22kW, delivering up to ~120km of range per hour plugged in.
  • I need to charge my vehicle at work. Which EV charger would you recommend?

    For AC charging, NHP recommends the AC Max with communications enabled. The communications portion is crucial for the installation of multiple AC Max units and for future proofing. With communications enabled, a load management system can balance the power required with how much power a site can provide.

  • Can I mechanically set the charger to have a lower output?

    The AC Max has internal dip switches, allowing you to set the current rating to match what the building can supply. The installation manual includes a guide on the dip switch settings and the currents they can be set to: 6Amp, 8Amp, 10Amp, 13Amp, 16Amp, 20Amp, 25Amp and 32Amp.


    Choose the pin 4-6 to configure the maximum output current ratings.

    Configuration

    Max. Current Ratings

    6A (Default)


    8A


    10A


    12A


    Configuration

    Max. Current Ratings

    16A


    20A


    24A


    32A


25kW DC Wallbox
  • What are the upstream protections required for the 25kW DC Wallbox?

    In line with AS/NZS3000 appendix P, NHP recommends using an appropriate overload protection in conjunction with appropriate RCD upstream when installing a 25kw DC Wallbox.

    As per WorkSafe NZ electric vehicle charging safety guidelines October 2019, Addendum: Second Edition. For residential installations of DELTA 25kW DC Wallbox, a type B RCD is recommended.

    DC Wallbox is wired with a three-phase supply.

    MCB
    RCCB Type B
    RCCB Type A

    25kW DC Wallbox

    DTCB6363C

    DSRCD46330B

    DSRCD46330A


    As a safe installation practice and to support safe maintenance practice, NHP recommends that an isolator is installed upstream of the DC Wallbox.

    Product
    Isolator

    25kW DC Wallbox

    ISO463MG


    All products listed above are for direction only, more products to suit this application are also available from NHP.

  • Can I configure the DC Wallbox to have a lower output?

    The DC Wallbox can be configured to have a lower output using an online configuration tool to set the output of the unit to meet your requirements. The online tool also allows for integration with OCPP and the ability to set the maximum amount of power users can charge from the unit. To gain access to the tool, please contact your local NHP representative

  • What is the difference between AC and DC charging?

    Electric Vehicle batteries can only receive DC current. As a result, AC Chargers deliver AC current which needs to be converted to DC by the vehicle internal rectifier. Due to the size, space and weight constraints inside a vehicle, most vehicle rectifiers are limited to 11kW. A Delta AC Max operating at full capacity (22kW) will only charge the vehicle at 11kW as the vehicle has limited the charge rate to what it can receive. Future generations of vehicles may increase the AC charge rates to 22kW.

    A vehicle like a Tesla Model 3 will recharge its 65kWh battery from 0-100% in approx. 6 hours at 11kW.

    DC charging allows for much faster charging, as the DC charger does the conversion from AC to DC itself. This allows the current to bypass the vehicle’s internal rectifier, in essence removing the AC ‘limiter’ and charging directly into the battery via DC. This DC charging enables vehicles to charge at between 100kW and 250kW (vehicle dependent). A vehicle like a Tesla Model 3 will recharge its 65kWh battery from 0-100% in approximately 1 hour 20 min at 50kW.

    Need more power? NHP can support your business with DC chargers as fast as 200kW.

Warranty
  • What warranty does NHP provide?

    Delta Electric Vehicle Chargers come with a two year warranty. Other EV products come with a one year warranty. Please refer to our standard warranty terms for further details. NHP can also support you with an Extended Warranty - please contact us in the below form for a quote based on your specific needs.

Compatibility
  • EV charging plug standards for New Zealand

    New Zealand predominately uses Type 2 and Type 2 CCS (also known as CCS2). Type 2 is generally the agreed standard among all the parties involved in EV charging in New Zealand (automotive manufacturers and EV charging providers).

    Type 2 is the plug utilised for AC charging. While Type 2 CCS (CCS2) adds two large DC pins to allow for DC fast charging. Type 2 and Type 2 CCS (CCS2) is utilised by all major automotive manufacturers including, (but not limited to) Tesla, BMW, Audi, Mercedes-Benz, Hyundai, Kia, BYD, Mini, Porsche, Jaguar, Volvo, Polestar and Cupra.

    CHAdeMO is a Japanese DC standard which has been utilised for several years, however due to the benefits and prevalence of CCS2 amongst other automotive brands, CCS2 vehicles outnumber CHAdeMO by a considerable margin.

    Historically, before agreements were established on plug standards, vehicles featuring Type 1 and Type 1 CCS were in circulation. Vehicles with this plug standard have not been on sale in New Zealand for some years.

    If you have a vehicle with this plug type, NHP can support you with a Delta AC Max Socket Charger (EIAWE22KTBS0A02 or EIAWE22KTSH0A04). This in combination with a Type 1 > Type 2 plug will enable you to charge your EV.

    AC charging

    Type 2


    Mennekes
    DC charging

    Type 2 CCS (CCS2)


    CCS-05
    DC charging (Japan)

    CHAdeMO


    CHAdemo
  • Will Delta EV chargers work with my vehicle?

    Vehicles with Type 2, Type 2 CCS (CCS2) or CHAdeMO will work with Delta products.

    NHP and Delta work to ensure chargers are compatible with different automotive products entering into the market. If you are an automotive manufacturer and would like to test your vehicle with Delta chargers, please don’t hesitate to get in touch.

    We no longer support Type 1, Type 1 CCS.

Load Management
  • Why would I need a load management system?

    When you are installing one or two EV chargers, it is not a significant load on the building system at 7.36 kW or 32A at 230V. If you are installing a large number, for example 25, into an existing building and calculate based of the current AS/NZ3000 draft for maximum demand, you would need 800A of room on the switchboard. NHP views this as unnecessary as that switchboard would only be utilised for a small portion of the day. Instead NHP recommends using smart load management. The load management system factors in human behaviour, like everyone plugging in their vehicle when they get home. This creates a peak of demand for the EV charging, whereas later at night there is very little demand. A load management system allows the chargers to lower their output during peak demand.

Installation
  • Why would I need a load management system?

    When you are installing one or two EV chargers, it is not a significant load on the building system at 7.36 kW or 32A at 230V. If you are installing a large number, for example 25, into an existing building and calculate based of the current AS/NZ3000 draft for maximum demand, you would need 800A of room on the switchboard. NHP views this as unnecessary as that switchboard would only be utilised for a small portion of the day. Instead NHP recommends using smart load management. The load management system factors in human behaviour, like everyone plugging in their vehicle when they get home. This creates a peak of demand for the EV charging, whereas later at night there is very little demand. A load management system allows the chargers to lower their output during peak demand.

  • What are the standards that should be considered when installing an EV charger?

    Beyond the requirements of AS/NZ3000, NHP's understanding is that this is not yet well defined within the industry. AS/NZ3000 June draft has content on EV chargers in segment P, but it is only informative.

    NHP suggests consideration be given first to safety, by protecting to a degree against accidental destruction of the electrical asset by vehicles, and then to ergonomics/accessibility. Wall or post-mounted chargers should be mounted 1000-1200mm from the ground so they are unlikely to be driven into, while the plugs can still be easily reached from a wheelchair.

    For floor mounted DC chargers, NHP recommends the installation of bollards to protect against accidental vehicle impacts. NHP recommends you follow "Building Code of Victoria Service & Installation Rules 2014" guidelines or follow your local regulations if this is not applicable.

  • How are vehicles that use the charging stations billed for the electricity?

    The monetisation of the provision of electricity is a topic with many answers and it is evolving all the time. That said, AC and DC are likely to be treated differently.

    The cost of the charging equipment and the value of the energy are much lower for AC and the equipment typically does not come with built-in credit card readers/NFC chips. Monetisation includes:

    1. Indirect cost recovery: for example shopping centres and destination attractions often provide electricity to EV owners at no cost, offsetting it against increased spend in their facility.
    2. As an added benefit of paid parking: if the parking space is already monetised, we expect the cost of the electricity to be structured into the cost of parking. The user will not want two separate transactions for parking and power and the operator will not see the value in the overheads associated with separate systems when it is comparatively easy to raise the existing price by 50 cents to one dollar per hour.
    3. Time-of-use tariffs: when the charging equipment is in a private home the equipment runs through the existing energy meter and we expect time-of-use tariffs to be commonplace for EV owners.
    4. Cloud-based billing for charging: if the parking is not monetised, and the owner of the charging equipment wants to monetise the provision of electricity, suitable solutions can be engineered. These include giving your money to an attendant who will activate the charger with a key or swipe card and app-based systems holding user credit card information that activate the charger directly over a cellular network. The monetisation of DC chargers is more common because the asset value and the value of the electricity provided in a single transaction are much higher.

    In these cases, an app-based system is typically used, allowing users to authenticate themselves to the charger, with billing then applied to their credit card. In some cases, the charging equipment will have a credit card reader built-in. In Europe, networks of DC chargers are commonly operated by energy retailers.

    By contrast, in the initial NZ experience, in some places DC charging is being offered free of charge to encourage uptake. The actual cost of the electricity expected to be provided over the first couple of years is likely to be a couple of orders of magnitude lower than the value of project execution. As far as NHP understands, the cost is effectively being absorbed as a project expense.

Contact us

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