Building Automation
Industrial Automation
Power Automation & Safety
Bangladesh Distributor
WLCA12-2NTH
Two-circuit Limit Switch/Long-life Two-circuit Limit Switch
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Standard sensitivity, IP67 Heat-resistant type, Snap action, Self-reset mechanism, 2-circuit double break type, SPST-NO / SPST-NC, Adjustable roller lever(25 to 89 R)
| Shape/Structure |
General-purpose Limit switches |
|---|---|
| Actuator |
Adjustable roller lever Over travel 90 DEG, One-side operation 17.5 dia. * 7 Sintered stainless steel roller 25 to 89 R |
| Contact configuration |
2-circuit double break type |
| Load |
General load |
| Degree of protection |
Heat-resistant type IEC60529 (JEM): IP67 NEMA250: Type3, 4, 13 |
- Ratings / Performance
As of August 8, 2016
| Shape/Structure | General-purpose Limit switches |
|---|---|
| Service life | General type |
| Operating mechanism | Snap action |
| Actuator | Adjustable roller lever Over travel 90 DEG, One-side operation 17.5 dia. * 7 Sintered stainless steel roller 25 to 89 R |
| Frequency | 50/60 Hz |
| Switching mechanism | Self-reset mechanism |
| Contact configuration | 2-circuit double break type |
| Contact form | SPST-NO / SPST-NC |
| Load | General load |
| Ratings (AC): Non-Inductive load | Rated voltage: 125 VAC / Resistive load: 10 A(NC) 10 A(NO) / Lamp load: 3 A(NC) 1.5 A(NO) Rated voltage: 250 VAC / Resistive load: 10 A(NC) 10 A(NO) / Lamp load: 2 A(NC) 1 A(NO) Rated voltage: 500 VAC / Resistive load: 10 A(NC) 10 A(NO) / Lamp load: 1.5 A(NC) 0.8 A(NO) |
| Ratings (AC): Inductive load | Rated voltage: 125 VAC / Inductive load: 10 A(NC) 10 A(NO) / Motor load: 5 A(NC) 2.5 A(NO) Rated voltage: 250 VAC / Inductive load: 10 A(NC) 10 A(NO) / Motor load: 3 A(NC) 1.5 A(NO) Rated voltage: 500 VAC / Inductive load: 3 A(NC) 3 A(NO) / Motor load: 1.5 A(NC) 0.8 A(NO) |
| Ratings (DC): Non-Inductive load | Rated voltage: 8 VDC / Resistive load: 10 A(NC) 10 A(NO) / Lamp load: 6 A(NC) 3 A(NO) Rated voltage: 14 VDC / Resistive load: 10 A(NC) 10 A(NO) / Lamp load: 6 A(NC) 3 A(NO) Rated voltage: 30 VDC / Resistive load: 6 A(NC) 6 A(NO) / Lamp load: 4 A(NC) 3 A(NO) Rated voltage: 125 VDC / Resistive load: 0.8 A(NC) 0.8 A(NO) / Lamp load: 0.2 A(NC) 0.2 A(NO) Rated voltage: 250 VDC / Resistive load: 0.4 A(NC) 0.4 A(NO) / Lamp load: 0.1 A(NC) 0.1 A(NO) |
| Ratings (DC): Inductive load | Rated voltage: 8 VDC / Inductive load: 10 A(NC) 10 A(NO) / Motor load: 6 A(NC) 6 A(NO) Rated voltage: 14 VDC / Inductive load: 10 A(NC) 10 A(NO) / Motor load: 6 A(NC) 6 A(NO) Rated voltage: 30 VDC / Inductive load: 6 A(NC) 6 A(NO) / Motor load: 4 A(NC) 4 A(NO) Rated voltage: 125 VDC / Inductive load: 0.8 A(NC) 0.8 A(NO) / Motor load: 0.2 A(NC) 0.2 A(NO) Rated voltage: 250 VDC / Inductive load: 0.4 A(NC) 0.4 A(NO) / Motor load: 0.1 A(NC) 0.1 A(NO) |
| Inrush current | NC: 30 A NO: 20 A |
| Conduit size | G1/2 |
| Earth terminal | Without ground terminal |
| Ambient temperature | Operating: 5 to 120 ℃ |
| Ambient humidity | Operating: 35 to 95% |
| Permissible operating speed | 1 mm/s to m/s |
|---|---|
| Permissible operating frequency （Mechanically） | 120 operations / 1 minute Max. |
| Permissible operating frequency （Electrically） | 30 operations / 1 minute Max. |
| Contact resistance | 25 mOhm Max. (Initial value) (Measuring method is contact resistance meter.) |
| Insulation resistance | Between each terminal of the same polarities: null MΩ Between live-metallic part and ground: null MΩ Between each terminal and non-live-metallic part: null MΩ (at 500 VDC Megger) |
| Dielectric strength | Between each terminal of the same polarities: null V Between live-metallic part and ground: null V Between each terminal and non-live-metallic part: null V (50/60 Hz for 1 min) |
| Durability (Mechanically) | 10,000,000 operations Min. (No load) (Temperature, Humidity conditions: 5 CEL to 35 CEL, 40 %RH to 70 %RH) |
| Durability (Electrically) | 750,000 operations Min. (Resistive load 10 A at 125 VAC) (Temperature, Humidity conditions: 5 CEL to 35 CEL, 40 %RH to 70 %RH) |
| Vibration resistance (Malfunction) | Vibration frequency range: 10 to 55 Hz, Double amplitude: 1.5 mm, Contact opening: 1 ms Max. at the free position and the total travel position. |
| Shock resistance （Destruction） | 1,000 m/s2 |
| Shock resistance （Malfunction） | Contact opening is 1 ms Max. at the free position and the total travel position at 300 m/s2. |
| Degree of protection | Heat-resistant type IEC60529 (JEM): IP67 NEMA250: Type3, 4, 13 |
| Mounting specification | Front mounting Back mounting Side mounting |
| Operating Force （OF） | Standard value Max. 9.61 N |
|---|---|
| Release Force （RF） | Standard value Min. 1.18 N |
| Pre-Travel （PT） | Standard value 20 DEG Max. |
| Over-Travel （OT） | Standard value 70 DEG Min. |
| Movement Differential （MD） | Standard value 10 DEG Max. |
| Condition of operating characteristics | When the rod length is 38 mm |
As of August 8, 2016
- Mounting holes
As of August 8, 2016
As of August 8, 2016
- Circuits configuration
As of August 8, 2016
As of August 8, 2016
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