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.

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.

Visit this website for more information: https://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	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	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	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	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	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	Electric power, general-purpose industrial equipment (condensers, etc.)
	G9EC-1(-B)-AQ (Already released)	400V	200A	200A	Approx. 7W	44mm 98mm 86.2mm	Automotive use (main circuits and HEV/FCEV)
G9ED	G9ED-1(-B)-AQ (Already released)	400V	150A	150A	Approx. 4W	36mm 73mm 67.2mm	Automotive use (main circuits and HEV/FCEV)
G9EH	G9EH-1 (Already released)	400V	300A	300A	Approx. 7W	60mm 111mm 76.7mm	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 https://www.omron.com/