Contactor Relays - 3RH2 Series

Climate-proof contactor relays with protection against accidental contact. RC elements, varistors, diodes or diode assemblies (combination of a diode and a Zener diode) can be plugged into all contactor relays to dampen opening transients in the coil.

Size S00

High degree if there is contact stability with low current and voltages

Suitable for use with solid-state circuits with currents ≥ 1 mA and a voltage of ≥ 17 V

• Possibility of expansion to up to four contacts for use with auxiliary pressure switch blocks

Note

The deactivation delay of the NA contact and the activation delay of the NC contact increase if the contactor coils are attenuated against voltage peaks (noise suppression diode 6 to 10 times; diode assemblies 2 to 6 times, varistor +2 to 5 ms).

Standards

• IEC 60947-1, EN 60947-1
• IEC 60947-4-1, EN 60947-4-1
• IEC 60947-5-1, EN 60947-5-1

Siemens Sirius Range of Contactors and Control Relays

Siemens controller for feeders up to 5.5 kW. The complementary nature of the devices allows for quick and easy mounting, for example, of starter motors and inverters. A perfect adaptation between contactors, overloads, magnetothermal circuit breakers and accessories for the same power values provides a uniform panel appearance and standard widths without reducing lateral mounting space to save space.