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OMRON to release world's smallest and lightest high capacity DC power relay

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  • August 21, 2012
  • FOR IMMEDIATE RELEASE

G9EN DC power relay

Kyoto, Japan — OMRON Corporation (TOKYO: 6645; ADR: OMRNY) today announced the release on October 1, 2012 of the G9EN DC power relay, the world's smallest and lightest high capacity DC power relay of its class (*1). The relay is 50% smaller and lighter than Omron's previous comparable relays thanks to the use of newly developed proprietary sealing technologies and new magnetic control methods (*2).

With the global expansion of the market for environmentally-friendly clean energy vehicles such as hybrid and fuel-cell cars, there is quickly growing demand for mileage extension and new high-capacity battery DC load control technologies. Omron has been working over the last decade to meet the needs of clean energy car manufacturers for greater circuit design flexibility and components that enable down-sizing and weight reduction of onboard electrical equipment. With the G9EN (60A), Omron is taking down-sizing and weight reduction to the next level, and the company is also preparing for the release of other advanced new products including a 150A main relay, and an air-break switch pre-charge relay (*3).

  • (*1) Omron's internal investigation, August 2012
  • (*2) Omron's original magnet arrangement for blow-out magnets and switchgear design
  • (*3) Not gas-enclosed type

Features of the G9EN DC power relay

  1. 50% reduction in volume (28x40x50mm) and weight (140g) compared with previous Omron models in the same product class.
  2. Non-polarized contact circuit (contact terminal) (the first model in this class to feature this). This contributes not only to device downsizing and weight-reduction, but also makes wiring and mounting much simpler.

Main applications

  1. Main relays and pre-charge relays for vehicles with high voltage batteries such as hybrid and electric vehicles (in BDUs - Battery Disconnect Units).
  2. Chargers, feeders, and accessories for electric vehicles and plug-in hybrid cars.
  3. Feeder circuits and condensers for fuel cell cogeneration systems and solar power systems
  4. Industrial equipment (elevators, industrial robots, testing devices, etc.)

Technical information

Air-tight seal construction

DC power relays enclose pressurized gas which enables them to hinder arc formation (*4) by cooling. Typically, a ceramic housing is used to keep the pressurized gas sealed in, but Omron has achieved down-sizing and weight reduction of the relay body by changing the ceramic sealing construction from a conventional box-shaped ceramic case to a combination of ceramic plating and metal casing.
This makes it possible to maintain or increase the interior volume of the air-tight space of the main contact circuit (main terminal) structure compared with existing comparable products.

(*4) An arc is a type of discharge which occurs in a gas between electric poles with low voltage and high current. Arcing damages contacts and worsens the interruption characteristics by creating a temporary current flow between contacts resulting in considerable localized heating.

Down-sizing, weight savings, and increased capacity with identical performance.

New magnetic control and arc extinguishing methods

Omron has designed the layout, spacing, and shape of the switching circuit and the permanent magnet circuit specifically to extinguish the arcing which occurs during DC load interruption across narrow contact gaps.
This enables high-speed arc interruption regardless of current direction, and has resulted in a non-polarized main contact circuit (main terminal) which up till now has been difficult to achieve with direct-current type relays using arc interruption via magnetic blow-out.
This non-polarization means the device is suitable for use in applications requiring two-way current flow. It also means it is not necessary to consider the mounting direction or the orientation of the device, making wiring and mounting much easier, and reducing the risk of incorrect wiring.

Existing product/G9EN

Visit this website for more information: http://www.omron.com/ecb/products/pry/

Sales target

Type G9EN only
2013 & 2014: 500,000pcs (annually)
2015 onwards: 1,000,000pcs (annually)

Price

Open price

Production plant

Kumamoto Headquarters of OMRON RELAY & DEVICES Corporation, Kumamoto, Japan

List of Omron relays and specifications

Basic
model
number
Specific
model
number
Maximum
switching
voltage
Maximum
switching
current
Rated
carry
current
Power
consumption
Dimensions
D:
W:
H:
Main
applications
G9EN G9EN-1
(to be released in October, 2012)
400V 60A 60A Approx. 5W 28mm
40mm
50mm
G9EN
HEV/FCEV (for main & pre-charge circuits)
Electric power, general-purpose industrial equipment (condensers, etc.)
G9EJ G9EJ-1
(To be released soon)
400V 25A - Approx. 2W 27mm
31mm
30mm
G9EJ
HEV/FCEV (for main & pre-charge circuits)
Electric power, general-purpose industrial equipment (condensers, etc.)
G9EM G9EM-1
(Under development)
400V 150A 150A Approx. 5W 28mm
50mm
70mm
G9EM
HEV/FCEV (for main & pre-charge circuits)
Electric power, general-purpose industrial equipment (condensers, etc.)
G9EA G9EA-1(-B)
(Already released)
400V 100A 60A Approx. 5~5.4W 36mm
73mm
67.2mm
G9EA
Electric power, general-purpose industrial equipment (condensers, etc.)
G9EA-1(-B)-CA
(Already released)
400V 30A 100A
G9EA-1(-B)-AQ
(Already released)
400V 80A 80A Approx. 5.5W Automotive use
(main circuits and HEV/FCEV)
G9EB G9EB-1(-B)
(Already released)
250V 25A 25A Approx. 2W 25mm
60mm
58mm
G9EB
Electric power, general-purpose industrial equipment (condensers, etc.)
G9EB-1(-B)-AQ
(Already released)
400V 25A 25A
(ambient operating temperature 70 degrees Celsius)
/20A
(ambient operating temperature 85 degrees Celsius)
Approx. 2.5W Automotive use
(HEV/FCEV and pre-charge circuits)
G9EC G9EC-1(-B)
(Already released)
400V 200A 200A Approx. 11W 44mm
98mm
86.7mm
G9EC-1(-B)
Electric power, general-purpose industrial equipment (condensers, etc.)
G9EC-1(-B)-AQ
(Already released)
400V 200A 200A Approx. 7W 44mm
98mm
86.2mm
G9EC-1(-B)-AQ
Automotive use
(main circuits and HEV/FCEV)
G9ED G9ED-1(-B)-AQ
(Already released)
400V 150A 150A Approx. 4W 36mm
73mm
67.2mm
G9ED
Automotive use
(main circuits and HEV/FCEV)
G9EH G9EH-1
(Already released)
400V 300A 300A Approx. 7W 60mm
111mm
76.7mm
G9EH
Automotive use
(main circuits and HEV/FCEV)

About OMRON

Headquartered in Kyoto, Japan, OMRON Corporation is a global leader in the field of automation. Established in 1933, Omron has more than 36,000 employees in over 35 countries working to provide products and services to customers in a variety of fields including industrial automation, electronic components, social systems, healthcare, and the environment. The company has regional head offices in Singapore (Asia Pacific), Beijing (Greater China), Amsterdam (Europe, Africa, and the Middle East), Chicago (the Americas), Gurgaon (India), and Sao Paulo (Brazil). For more information, visit OMRON's website at http://www.omron.com/

Product Inquiries
OMRON RELAY & DEVICES Corporation
Koichi Udo, +81-968-44-4118
DC Relay Department
Email: koichi_udo@oer.omron.co.jp
Media Inquiries
OMRON RELAY & DEVICES Corporation
Masahiko Ezaki, +81-968-44-4101
Corporate Planning Division
Email: masahiko_ezaki@oer.omron.co.jp

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