Enertec Joins Forces With Helios Power Solutions

Enertec Joins forces with Helios Power Solutions

We are delighted to announce that as of 1 November 2016, Enertec Power Solutions Ltd will become part of Helios Power Solutions Ltd (formerly Innovative Energies Ltd) in Auckland.

With the addition of the Enertec product range and their highly qualified staff, Helios will be able to provide an unmatched range of industrial power solutions to the NZ market.

All of the current Enertec staff will be joining the new entity, and customers and suppliers can expect the same high same high level of service, and to deal with the same people they do at present. Both companies have been in existence for around 30 years, and focus on technical strength, high service and quality levels, and innovative solutions to industrial power requirements.

New products include the Riello range of AC UPS from Italy, Ablerex AC UPS and battery monitoring systems, Erico lightning and surge protection equipment, and a range of other industrial power products.

All of these are backed up by qualified service personnel, and the ability to commit to long term service agreements.

These products and services are complementary to the current Helios offer, and the combined technical depth of the business is unmatched in NZ.

In addition, we will now be able to provide improved service levels to the whole country, with increased technical sales resources in Auckland, and people on the ground in Wellington and Christchurch.

Helios Power Solutions is 100% NZ owned, and includes the NZ business, and operations in Sydney and Singapore. Taspac Energy is an associated company based in Henderson that focusses on distribution of leading products for the solar industry.

Kind regards

Wayne Mu Richard Walker Greg Russell
AC Products Manager Branch Manager Wellington Director/CEO
Enertec Power Solutions Enertec Power Solutions Helios Power Solutions
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Cooling Power Supplies

Power supplies generate waste heat which has to be dissipated. They typically have either convection cooled or forced cooled ratings or, in some cases, both. Forced cooled power supplies may incorporate a cooling fan, or may specify the user cooling required to operate the unit at maximum load and ambient temperature.

Where user cooling is required it is most important that the power supply cooling is adequate for both safe operation and adequate service life. It is very application specific and dependent on the ambient temperature, applied load and physical location with respect to the cooling fan and other system assemblies.

The main difference between convection and force cooled products is in the power density offered. For a given efficiency, convection cooled products offer a lower power density, meaning that they occupy a larger volume. A power supply on a 3” x 5” industry standard footprint may have a convection rating of 150 W while the force cooled version may have a rating as high as 350 W.

Convection Cooling

Where the power supply has a convection cooled rating, it is intended to be used in an environment where there is free air. The system designer must ensure that there is adequate space around and above the unit for free air convection currents to cool the unit and must also ensure that the ambient temperature local to the power supply is controlled to a level within its maximum ratings.

Forced Cooling

Force cooled products with integral cooling fans are easy to apply as it is a simple matter of ensuring that the maximum specified ambient temperature is not exceeded for a given load rating and that the intake and exhaust areas are not obstructed.

Typically, power supplies that require the user to provide forced air cooling will specify a minimum required airflow. This is usually for operation at 100% of the power rating at the maximum ambient temperature allowed.

The required airflow is often specified in Cubic Feet per Minute (CFM) which is also the common rating for cooling fans. The effectiveness of cooling fans installed in enclosures must be given consideration, as discussed earlier in this section, and the CFM rating deals in volume of air rather than air speed, which is the important factor. The object is to maintain the components used within the power supply at a safe operating temperature and to ensure adequate service life.
When the required airflow is specified in CFM it assumes that the power supply is installed in an area which is relatively similar to it’s own cross sectional area. This is rarely the case as the power supply is typically used as a sub-assembly within a complete equipment enclosure. It will also assume that the air is directed at the power supply, which may also not be the case, so converting to Linear Feet per Minute (LFM) or meters per second (m/s) provides a more valid criterion as linear air speed measurements specify where the air is flowing and directly relate to heat transfer.


In the case above, the power supply requires forced air of 7 CFM in the direction indicated by the arrow. The cross sectional area is:-

3” x 1.43” = 4.29 inches2 or 0.0297 feet2

Therefore the air velocity required is:-

7/0.0297 = 236 LFM or 1.2 m/s

This air speed can be measured locally to the power supply to ensure that sufficient forced air cooling is being applied.Evaluation of the Application

The object is to maintain the components used within the power supply at a safe operating temperature and to ensure adequate service life. Given the huge potential for variation between one application and another, the only real test is measurement of the temperature of the critical components within the power supply assembly when installed within the end application under the worst case external ambient conditions. The other option is to model the application exactly using a suitable software simulation.

The criteria for safe operation will be specified for the power supply in question or can be obtained from the manufacturer. For the example above, the specific component temperatures for safe operation are given below; these are typical for a power supply of this type.


While these figures will ensure safe operation they do not give any indication of the service life that can be expected. The lifetime of a power supply is largely determined by the temperature of the electrolytic capacitors, which have a wear out mechanism. As a general rule, capacitor lifetime can be doubled for every 10 °C drop in operating temperature.The graph below indicates the expected service life of the power supply based on measurement of two key electrolytic capacitors.



Gary Bocock is a qualified electronics engineer and Member of the Institution of Engineering and Technology (MIET).

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Innovative Energies announced the EPL225 series of high efficiency open frame AC-DC power supplies.

Product news
Reference: EPL225



IE leads the industry with 95% efficient 225 Watt AC-DC supply in a 2” x 4” package

Innovative Energies today announced the EPL225 series of high efficiency open frame AC-DC power supplies approved for industrial, IT and medical applications. The series comprises seven single-output models that offer a range of standard output voltages from +12 VDC to +48 VDC.  A secondary 12 VDC / 0.5 A fan output is provided across the range. Packaged in an extremely compact low profile 2 x 4 inch industry standard ‘1U’ footprint (50.8 x 101.6 x 32.3 mm) the series has a convection cooled output power rating of 150 Watts which is believed to be “best in the industry” for a power supply of this footprint. Output power of up to 225 Watts is available with only 10 CFM of forced airflow.

The EPL225 series offers a minimum average efficiency of 93% and a maximum efficiency of 95% resulting in less heat to dissipate and a cooler running unit, the later contributing to a more reliable longer-life power supply. In addition, the units “green” attributes include a no-load power consumption of less than 0.5 Watt enabling compliance with the latest environmental goals and legislation.

The series complies with the universal safety standard EN 60950-1 for IT equipment in addition to the medical safety standards ANSI/AAME/ 60601-1 and IEC/EN60601-1 3rd edition. With low conducted and radiated noise the units meet the standards EN55011 & EN55022 for Class B conducted and Class A radiated EMI specifications.

The EPL225 suits use in a broad range of operating environments with an extended temperature range from -20 to + 70 degrees C and no derating until +50 degrees C.

The EPL225 range offers a high power density solution and is ideal for space constrained applications that are either convection cooled or have airflow.

The EPL225 series is available, and come’s with a 3 year warranty.



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Innovative, Inline and Amtex Sales Conference FEB 2015



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EEA Conference 2015




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Inline Components Joins The Innovative Energies Group

Inline Components Joins The Innovative Energies Group

We are pleased to announce:


As of the 1st February 2015, Inline Components Ltd becomes part of the Innovative Energies Group of companies. This exciting development brings together the two main DC Power Solutions companies in New Zealand. The combination of the Cordex range of convection cooled industrial DC units from Inline with the Innovative Energies range of locally designed and manufactured DC power solutions and world leading imported products, provides industrial customers with an unbeatable range. More importantly, the combined experience and technical capability of the people in the business means customers have direct access to a wealth of knowledge on DC power, unmatched in New Zealand…..  read more…..


 Inline-Cordex Announcement



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Greg Russell                                                                                      Barry Johnson

INNOVATIVE GROUP                                                                   INLINE COMPONENTS

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Schaefer is ITAR Certified and Compliant

Schaefer is ITAR Certified and Compliant

17th September 2009               News Release from: Schaefer Electronic


Schaefer Inc. has announced that it is an ITAR Certified and Compliant company. ITAR (International Traffic in Arms Regulations) is a set of United States government regulations that control the import and export of defense-related articles and services on the United States Munitions List.

ITAR regulations implement the provisions of the ARMs Export Control Act and are interpreted and enforced by The U.S. Department of State. ITAR regulations dictate that information and material pertaining to defense and military related technologies may only be shared with U.S. Persons.

Schaefer designs and manufactures COTS and MOTS power converters that have been certified to MIL-STD-810, MIL-STD-461, MIL-STD-704D, MIL-STD-1399 and other critical standards. A product offering of 6000+ heavy industrial COTS power converters can be easily optimized to satisfy most user-defined electrical, mechanical, and environmental requirements. Designed for mission critical applications, Schaefer’s products offer such features are weatherproof/waterproof enclosures, increased mechanical strength, and extended temperature operating/storage conditions.

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