Item list of A3US
| 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 |
Building Automation
Industrial Automation
Power Automation & Safety
Bangladesh Distributor
A3US
Plateau Head Knob-type Selector Switch
Easy connector enables less assembly and less wiring
about this Product Family
Related Contents
- Push Buttons / Indicator Lamps
- Features
- Lineup
- Specifications
- Dimensions
- Catalog
last update: February 09, 2015
Approved Standard Ratings
*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 ° |
last update: February 09, 2015
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