Product Category

Plateau Head Knob-type Selector Switch

A3US

Easy connector enables less assembly and less wiring

Approved Standard Ratings

Certification Authority

UL *1 *2

CSA *1 *2

TÜV *3

Certification no.

UL508
 CSA C22.2 No.14

CSA C22.2 No. 14

EN60947-5-1

Rating

30 VDC 0.1 A

30 VDC 0.1 A

12 30 VDC 0.1 A

File no.

E41515

2650068

J50236157

*1. Only Switch Blocks are recognized by UL/CSA. (Surrounding air Temperature: 55 °C)
 *2. Please use the power supply specified in UL/CSA class 2.
 *3. Use 4A 250V as short-circuit protective device when using under EN-compliant rating standard (IEC60127-2 SS1). 

Ratings

Contacts
 30 VDC, 0.1 A (Resistive load)
 Minimum applicable load: 1 mA at 5 VDC
 
 Rated values are obtained from tests conducted under the following conditions.
 1. Load: Resistive load
 2. Mounting conditions: No vibration and no shock
 3. Temperature: 20 ± 2 °C
 4. Operating frequency: 20 operations/min 

Characteristics

Item

Knob-type Selector Switch

Allowable
 operating
 frequency

Mechanical

30 operations/minute max.

Electrical

30 operations/minute max.

Insulation resistance

100 MΩ min. (at 500 VDC)

Contact resistance

250 mΩ max. (initial value)

Dielectric
 strength

Between terminals of same polarity

500 VAC, 50/60 Hz for 1 minute

Between each terminaland ground

1,500 VAC, 50/60 Hz for 1 minute

Vibration
 resistance

Malfunction

10 to 55 Hz, 1.5-mm double amplitude (malfunction within 1 ms)

Shock
 resistance

Malfunction

300 m/s2 max. (malfunction within 1 ms)

Durability

Mechanical

250,000 operations min.


Electrical

100,000 operations min.

Connector holding force

40 N max.

Rated insulation voltage (Ui)

30 V (EN60947-5-1)

Electric shock protection class

Class II

Degree of contamination

3 (EN60947-5-1)

Impulse
 withstand
 voltage

Between terminals of same polarity
 Between terminals of different
 polarity Between each terminal and
 ground

800 V (EN60947-5-1)

Conditional short-circuit current

100 A (EN60947-5-1)

Conventional enclosed thermal current (Ithe)

0.1 A (EN60947-5-1)

Weight

Approx. 30 g

Degree of protection

IP40, IP65 (Oil-proof type)

Ambient operating temperature

-20 °C to 70 °C (with no icing or condensation)

Ambient operating humidity

35 % to 85 % RH

Ambient storage temperature

-40 °C to 70 °C (with no icing or condensation)

Ambient storage humidity

35 % to 85 % RH

Operating Characteristics

Features

A3US

Total travel force (TTF) max.

0.34 Nm

Resetting force (RF) max.

0.34 Nm

Total travel (TT)

2 notches: Approx. 90 °
 3 notches: Approx. 45 °