8989
Series 61Technical Data
Actuator with snap-action switching element
Switching system
Self-cleaning, double-break snap-action switching system with contact
opening width 2 x 0.5 mm (switch with small contact opening width as
per EN IEC 61058-1). The switching elements are optionally equipped
with the following switching functions : One to three normally open (NO)
or normally closed (NC), or any combination of NO and NC plus
connections for T1 3/4 LED or lamp. The number of switching elements
cannot exceed three. The switching elements provided for the 3-position
switch actuators are equipped with max. 2 NC or 2 NO or any
combination. The number of switching elements cannot exceed two.
Material
Lens
raised mounting Polymethylmethacrylat (PMMA), as per UL 94 HB, flush
mounting Polycarbonat (PC), as per UL 94 V0, or aluminium anodized
Front bezel
polyetherimid (PEI), as per UL 94 V0, or aluminium anodized
Front ring
aluminium anodized
Material of contact
silver or silver with gold plating
Switching element
diallylphthalate (DAP), as per UL 94 V0 and Polyamide (PA 66), as per UL
94 V0
Actuator housing
polyetherimide (PEI), as per UL 94 V0, self-extinguishing
Mechanical characteristics
Terminals
solder rigid flexible superflexible
1 wire : 0.5 ... 1.5 mm20.5 ... 0.75 mm20.5 mm2
2 wires : 0.75 mm20.5 mm2
Actuating torque
selector / Keylock switch : 2.5 ... 10 Ncm
Actuating force
pushbutton : 2.7 ... 3.6 N
Actuating travel
pushbutton : 3 mm
selector-/ keylock switch 2 positions 3 positions
momentary action: approx. 42 ° approx. 2 x 42 °
maintained action: approx. 90 ° approx. 2 x 90 °
Rebound time
the rebound times apply to normal manual activation
contact making: 3 ms
contact breaking: 5 ms
Mechanical lifetime
as per DIN IEC 60512-5-6 and EN IEC 60947-5-1
pushbutton maintained action: 1 million cycles of operation
pushbutton momentary action: 2 million cycles of operation
keylock switch: 50.000 cycles of operation
selector switch: 100.000 cycles of operation
Electrical characteristics
Standards
the devices comply with : EN IEC 61058-1 and EN IEC 60947-5-1
Rated operational voltage
Ue= 250 VAC, as per EN IEC 60947-1
Rated insulation voltage
Ui= 320 VAC, as per EN IEC 60947-5-1
Rated impulse withstand voltage
Uimp = 4 kV, as per EN IEC 60947-1
Contact resistance
new state with silver contact : 100 m
as per DIN IEC 60512-2-4, measured at 100 mA, 10 V
new state with gold plated contact : 50 m
as per DIN IEC 60512-2-3, measured at 20 mV, 10 mA
Electrical life
îš•50.000 cycles of operation at 250 VAC, 5 A, cos 0.95
as per EN IEC 60947-5-1
Electrostatic discharge
keylock switch : 11 kV
Conventional free air thermal current
Ith = 5 A, as per EN IEC 60947-5-1
the maximum current in continuous operation and at ambient
temperature must not exceed the quoted maximum values.
Switch rating
switch rating AC with silver contact or silver contact with gold plating,
service category AC-15, as per EN IEC 60947-5-1
voltage : 125 VAC 250 VAC
current : 2.5 A 2 A
switch rating DC for silver contact or silver contact with gold plating,
service category DC-13, as per EN IEC 60947-5-1
voltage : 250 VDC
current : 0.15 A
Recommended minimum operational data
material of contact: Silver Silver with gold plating
voltage : 20 VAC/DC 5 VAC/DC
current : 100 mA 10 mA
Electric strength
2500 VAC, 50 Hz, 1 min., as per DIN IEC 60512-2-11 between all terminals
and earth
Overvoltage category
III, as per EN IEC 60947-5-1
Protection class
class II, as per EN IEC 61058-1
Degree of pollution
3, as per EN IEC 60947-1
Environmental conditions
Storage temperature
-40 °C ... +85 °C
Operating temperature
-25 °C ... +55 °C
Protection degree
as per EN IEC 60529
frontside IP 65 | backside IP 40
Shock resistance
(semi-sinusoidal) max. 100 m/s2, pulse width 11 ms,
3-axis, as per EN IEC 60068-2-27
Vibration resistance
(sinusoidal)
max. 100 m/s2at 10 Hz ... 500 Hz, as per EN IEC 60068-2-6
Climate resistance
damp heat, cyclic :
96 hours, +25 °C / 97 %, +55 °C / 93 % relative humidity, as per EN
IEC 60068-2-30
damp heat, state :
56 days, +40 °C / 93 % relative humidity, as per EN IEC 60068-2-78
rapid change of temperature :
100 cycles, -40 °C ... +80 °C, as per EN IEC 60068-2-14
o