* Pictures are placed for illustration purpose only. Appearance of real component may differ.
Push-button switch with Reed-relay operated buttons.
Annotation breakdown
PKn21(23, 25, 27)F(B,V,N,S)-1(2-10)-4(2)-1(2)-B(G,S)V Yu60.360.004TU
PKn – pushbutton switch
21(23, 25, 27) – design version
Options:
F – latching
B – block, preventing switching on 2 neighbor buttons together
V – mutual switch-off, each button switches off others
N – switching off by second press
S – light signal
1(2-10) – number of buttons in the switch
4(2) – number of magnetically operated contacts for each button
1(2) – mount design (not applicable for PKn25, PKn27)
B(G,S) – button color: B – white, G – blue, S - gray
V – all-climate version
Yu60.360.004TU – technical requirement version
Operational conditions
| Vibratory loads frequency, Hz acceleration, m/s2(g) | 1..2000 150 (15) |
| Multiple mechanical impacts acceleration, m/s2(g) duration, ms | 400 (40) 1..10 |
| Single mechanical impact acceleration, m/s2(g) duration, ms | 1500 (150) 1..2 |
| Acoustic noise frequency, Hz maximum sound pressure, dB | 50..10000 140 |
| Linear acceleration, m/s2(g) | 250 (25) |
| Diminished air pressure, Pa (mmHg) | 0.00013 (10-6) |
| Elevated air pressure, Pa (kgf/cm2) | 297198 (3) |
| Ambient air temperature, oC switches without light signal switches with light signal | -60..+85 -60..+70 |
| Temperature variation, oC switches without light signal switches with light signal | -60..+85 -60..+70 |
| Relative humidity at +35 oC, not more than | 98% |
| External magnetic field intensity, A/m | 400 |
| Frost, dew, salt fog, mold fungi |
Technical parameters
| Current, A | 5·10-6..0.25 |
| DC voltage, V | 0.05..110 |
| AC voltage, V | 0.05..127 |
| AC frequency, up to, Hz | 10000 |
| Maximum switching power, W | 7.5 |
| Contact resistance, not more than, Ohm | 0.2 |
| Insulation resistance, not less than, MOhm | 800 |
| Insulation strength, V between open contacts between neighbor magnetic contacts, between light signal and any magnetic contact, between any contact and case | 200 700 |
| Actuation force, N (kgf) PKn21, PKn23, PKn25 PKn27 | 6.5..25 (0.65..2.5) 4.0..6.0 (0.4..0.6) |
| Number of switching cycles for each button | 50000 |
| Minimum lifetime, h | 10000 |
| Shelf life, years | 15 |
