4-pole relays EN40..N with a width of 54 mm control 3-phase loads up to 40 A and are available in various contact configurations and coil voltages. They switch electrical heating devices, water heaters, motors for pumps, ventilation, and other drives, as well as lighting. With an integrated coil circuit, they operate with both AC and DC control voltages. As a result, the devices are completely noise-free and quiet when switching. EN40..N features an integrated switch for selecting between three operating modes: manually off (even with a control signal present), automatic operation (normal relay function), and manually on with a return to automatic operation once the coil is powered again. This offers numerous advantages: for example, during commissioning, a functional test of the load circuit can be performed even without a control signal, and with a control signal present, the load circuit can be quickly and easily switched off at any time. An auxiliary switch that can be mounted on the left side as an accessory, as well as sealing caps and a spacer, complete the range. EN40..N has an installation design and meets, among others, the household standard EN61095, making them particularly suitable for panel installation.