ELECTROMECHANICAL
Latching type DW relay from Panasonic
The DW relay was specially developed for use in smart meters. To save energy, a latching type relay is required. The DW relay fulfills all demands of this market. Under the motto “eco ideas”, Panasonic hence contributes to the development of efficient, energy-saving smart meters.
driven applications and in building automation such as controlling electric rolling shutters. It is the perfect for applications that require loads of up to 8A/250V AC to be switched reliably.
The DW relay hence complements Panasonic’s existing portfolio of latching type power relays. Above all for battery-driven applications, the latching DW relay extends the period of use considerably.
Advantageous when designing the DW relay in an application are its 6mm creepage and clearance distance between contact and coil and its impressive breakdown voltage of 6kV between contact and coil. The surge withstand voltage here is a remarkable 12kV.
Besides the market for smart meters, the DW relay is ideal for numerous other applications. Its compact design (24mm x 10mm x 18.8mm (LxWxH)) and low coil power dissipation of 200mW for the 1 coil latching type or 400mW for the 2 coil latching type make this relay extremely attractive for the white
Switching current
Max. switching voltage Contact arrangement
Breakdown voltage between open contacts Breakdown voltage between contacts and coil Surge withstand voltage Coil voltage
Coil power (1 coil latching / 2 coil latching) Mounting method
Ambient temperature
goods market, e.g. for use in washing machines, dishwashers and driers, especially to reduce stand-by current consumption. In this case, the use of latching relays is key to reducing energy consumption in standby mode. Particularly for this market segment, the DW relay is not only available in an LCP housing (for reflow soldering) but also in PBT, which fulfills the VDE standard EN60335 (glow wire test, creepage resistance).
In general, the DW relay can be used in the
entire “eco market”, e.g. for the power supply of industrial and safety equipment, in battery-
Max 8A 250V AC 1a
1000Vrms 5000Vrms
12,000V (initial)
(DC) 3, 5, 6, 9, 12, 24V 200mW / 400mW Wave solder / PiP
- 40˚C to +85˚C (-40˚F to +185˚F)
A high inrush type for the DW relay is available immediately. This type of the tried- and-true DW relay is especially attractive for the lighting market. Other benefits of using the new version of this classic polarized power relay include a fully automatic assembly line and comprehensive technical support from our European headquarters.
Samples of the DW relay are available upon
request. For more information contact
avnet-abacus.eu/panasonic
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focus magazine - issue 15
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