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Ratings / Performance
| Shape / Structure | General-purpose Limit switches |
|---|---|
| service life | General type |
| Operating mechanism | Snap action |
| Actuator | Center roller lever |
| Electrical ratings | 1 A at 30 VDC |
| Frequency | 50/60 Hz |
| Leakage current | Approx. 1 mA |
| Switching mechanism | Self-reset mechanism |
| Contact configuration | Single-Pole, Double-Throw type |
| Contact form | 1c |
| Load | General load |
| Ratings (DC): Non-Inductive load | Rated voltage: 30 VDC, Resistive load: 1 A (NC) 1 A (NO), Lamp load: 1 A (NC) 1 A (NO) |
| Ratings (DC): Inductive load | Rated voltage: 30 VDC, Inductive load: 1 A (NC) 1 A (NO), Motor load: 1 A (NC) 1 A (NO) |
| Explanation | The above values indicate the steady-state current. Lamp load has an inrush current of 10 times the steady-state current. Inductive load has a time constant of 7 ms Max. (DC). Motor load has an inrush current of 6 times the steady-state current. |
| Inrush current | NC: 5 A NO: 2.5 A |
| Indicator | LED (Light when not operating) Voltage: 30 VDC Leakage current: Approx. 1 mA |
| Ambient temperature | Operating: -10 CEL to 70 CEL (with no icing or condensation) |
| Ambient humidity | Operating: 35%RH to 95%RH (with no icing or condensation) |
| Permissible operating speed | 1 mm/s to 1 m/s |
|---|---|
| Permissible operating frequency (Mechanically) | 120 operations / 1 minute Max. |
| Permissible operating frequency (Electrically) | 30 operations / 1 minute Max. |
| Contact resistance | 100 m Ohm Max. (Initial value) (Measuring method is contact resistance meter.) |
| Insulation resistance | Between live-metallic part and ground: 100 M Ohm Min. Between each terminal and non-live-metallic part: 100 M Ohm Min. (Condition, at 500 VDC Megger) |
| Dielectric strength | Between live-metallic part and ground: 1,500 VAC Between each terminal and non-live-metallic part: 1,500 VAC (Condition, 50/60 Hz for 1 min) |
| Durability (Mechanically) | 10,000,000 operations Min. (No load) (Temperature, Humidityconditions: 5 CEL to 35 CEL, 40 %RH to 70 %RH) |
| Durability (Electrically) | 200,000 operations Min. (Resistive load 1 A at 30 VDC) (Temperature, Humidityconditions: 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 500 m/s2. |
| Degree of protection | IEC60529 (JEM): IP67 |
| Applicable standard (UL) | Standard No.: UL508 File number: E76675 |
| Mounting specification | Front mounting |
| Operating Force (OF) | Standard value 6.67 N Max. |
|---|---|
| Release Force (RF) | Standard value 1.47 N Min. |
| Pre-Travel (PT) | Standard value 10 +/- 3 DEG |
| Over-Travel (OT) | Standard value 50 DEG Min. |
| Movement Differential (MD) | Standard value 3 DEG Max. |
Precautions for correct use:
Make sure that the panel to which the switch is mounted is flat. If the panel is warped or has protruding part, the switch may malfunction.
Do not adhere oil, or water on the contact part of the connector when replacing the switch.
Do not deform connector pins. Otherwise it will be a cause of contact and insulation problem.
As of March 1, 2008
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