* Pictures are placed for illustration purpose only. Appearance of real component may differ.
Hermetically sealed polarized two-step relay with 2 switching contact groups for DC and AC (up to 10 kHz) circuits.
Operational limits
Ambient air temperature, oC RS4.520.720, RS4.520.720-02 RS4.520.720-01, RS4.520.720-03 | -60..+125 -60..+70 |
Relative humidity at +35 oC | 98% |
Air pressure, kPa | 133·10-5..300 |
Technical parameters
Insulation resistance between live parts, between live parts and case, MOhm in normal conditions in increased humidity at maximum temperature | 200 10 20 |
Insulation strength between live parts, between live parts and case, in normal conditions, V | 500 |
Relay actuation time, not more than, ms | 15 |
Switching pulse rate, not less than | 5 |
Mass, g | 38 |
Version | Coil resistance, Ohm (each) | Voltage, V | |
Actuation | Operating | ||
RS4.520.720-01, RS4.520.720-03 | 340..460 | 7.6..11.4 | 20..36 |
RS4.520.720, RS4.520.720-02 | 553..647 | 9.5..14.5 | 24..30 |
Switching mode | Current type | Number of switching cycles | |
Current, A | Voltage, V | ||
0.01..5 | 6..36 | DC | 104 |
0.5..5 | 6..50 | AC | 105 |
0.01..0.5 | 6..127 | 105 | |
0.01..0.25 | 6..220 | 5·104 |
You can order RPS-42B RS4.520.720-02 from us
Other products in Switching devices




