Industrial
capability and 10kV impulse withstand voltage. Its highly effi cient magnetic circuit provides high sensitivity of 200mW. This standard model conforms to UL/CSA/VDE standards and satisfi es EN61010 reinforced insulation requirements.
The G5Q miniature power relay is a single- pole component with 10A switching capacity and excellent switching performance for a variety of loads. It is small yet provides 8kV impulse withstand voltage (between coil and contacts). Low coil power consumption. G2RL is a low-profi le PCB power relay with 15.7 mm height, ideal for incorporation in miniature types of equipment. A wide variety of single-pole, double-pole, high-capacity (16 A) type, and high-sensitivity type (250mW) relays are available. G2RL satisfi es ambient operating temperature requirements of 85°C and 105°C (-CV Model). Clearance and creepage distance: 8 mm / 8 mm min. Low power consumption of the G5NB and G5Q’s ensures less heat is generated and this makes them ideal for high-effi ciency operations. The G5NB and G5Q relays can be used in a wide range of consumer, commercial and industrial applications with explosion- proof, glow wire, high witching and high inrush type relays.
G5NB, G5Q and G2RL relays are approved
www.cieonline.co.uk
Sealed microswitches
New versions of ultra-subminiature basic switches sealed to IP67 will also prove ideal for safe operation in proximity with highly fl ammable fl uids. Models with sliding contact construction feature a long stroke and provide high reliability along with high insulation performance. Omron sealed microswitches are available for signal current up to 5A depending on the size, while all models can be provided with molded lead wires.
Conclusion
for use with the increasingly hazardous situations involving hazardous fuels and refrigerants. VDE Explosion protection proofi ng to IEC/EN60079-15 is provided for both sealed and unsealed devices with further approvals ongoing on motor loads. Additional approvals include VDE Glow Wire EN60335-1 and IEC/EN 60335-1 conformed. (-HA Model).
Miniature relays enter the fold Alongside sealed standard relays, the miniature power relays like G6RN provide 8A switching 250VAC with a low-profi le height
of 15 mm. It also features high sensitivity with 220mW power consumption, high insulation with an insulation distance of 8 mm and impulse withstand voltage of 10kV between coil and contacts. G6RN satisfi es the ambient operating temperature requirement of 85°C and the standard model conforms to VDE standards. Under development, the G6RN relay family will introduce an unsealed model –EL1, and its sealed counterpart –EL2. Both will carry approval to VDE Explosion protection proof IEC/EN6007915 and VDE Glow Wire EN60335-1 standards.
The issues raised in this article in relation to heat pumps apply equally to air conditioning systems, industrial and domestic refrigerators and other applications. The world needs to fi nd solutions that mitigate the impact of global warming, whilst ensuring the safety of heating and cooling plants. At Omron, we are committed to developing and promoting technologies that conserve resources and the environment. These will include ATEX-compliant relays, sealed switches, and new types of sensors.
https://omron-electronic-components-
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