# Polarized power relays perform energy-efficient switching operations

**Panasonic supplies multiple series of polarized power relays to meet the needs of many applications. These relays offer substantially lower power consumption than other types of electromechanical relay, with low self-heating.**

Panasonic Industry offers a broad portfolio of polarized power relays for applications including home and building automation, industrial equipment, and smart city automation. Relays supporting three types of operation are available: single-side stable, one-coil latching, and two-coil latching.

Polarized power relays help to reduce energy consumption: the permanent magnet in the coil reduces the energy required to actuate the load circuit. A latching relay also consumes no energy in the switched state. This results in highly efficient operation with no self-heating caused by power loss in the coil.

The Panasonic portfolio of polarized power relays includes the DE series: these are ideal for small systems that require high energy efficiency. The DE relays are particularly suitable for smart outlets rated for up to 3.6 kW, in which a minimum 8 mm creepage and clearance gap is specified.

Latching variants with one or two coils enhance the application’s power efficiency. A monostable version keeps losses low in applications that do not allow the use of latching relays.

The Panasonic portfolio of polarized power relays also includes the DSP, DK, DW and DJ‑H series supporting operating current up to 50 A and breakdown voltages up to 277 V ac.

DSP |
DK |
DE |
DW DW-HL |
DJ-H |
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Contact Configuration |
1A | 1A1B, 2A | 1A | 1A1B, 2A | 1A | 1A1B, 2A | 1A | 1A | 1A |

AC Voltage |
250 V | 250 V | 250 V | 250 V | 250 V | 250 V | 250 V | 277 V | 277 V |

AC Current |
8 A | 5 A | 10 A | 8 A | 16 A | 8 A | 8 A | 16 A | 50 A |

DC Voltage |
30 V | 30 V | 30 V | 30 V | 30 V | 30 V | |||

DC Current |
5 A | 5 A | 10 A | 8 A | 10 A | 8 A | |||

Length x Width x Height (mm) |
20.2 x 11 x 10.5 | 20 x 12.5 x 9.7 | 25 x 12.5 x 12.5 | 24 x 10 x 18.8 | 24 x 10 x 15.8 | 39 x 15 x 30.2 |