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| Shape / Structure | General-purpose Limit switches |
|---|---|
| service life | Long-life type |
| Operating mechanism | Snap action |
| Actuator | Roller lever (38 R) |
| Frequency | 50/60 Hz |
| Leakage current | Approx. 0.5 mA |
| Switching mechanism | Self-reset mechanism |
| Contact configuration | 2-circuit double break type |
| Contact form | 1a1b |
| Load | General load |
| Ratings (DC): Non-Inductive load | Rated voltage: 12 VDC, Resistive load: 3 A (NC) 3 A (NO), Lamp load: 3 A (NC) 3 A (NO) Rated voltage: 24 VDC, Resistive load: 3 A (NC) 3 A (NO), Lamp load: 3 A (NC) 3 A (NO) Rated voltage: 48 VDC, Resistive load: 3 A (NC) 3 A (NO), Lamp load: 3 A (NC) 3 A (NO) Rated voltage: 115 VDC, Resistive load: 0.8 A (NC) 0.8 A (NO), Lamp load: 0.2 A (NC) 0.2 A (NO) |
| Ratings (DC): Inductive load | Rated voltage: 12 VDC, Inductive load: 3 A (NC) 3 A (NO), Motor load: 3 A (NC) 3 A (NO) Rated voltage: 24 VDC, Inductive load: 3 A (NC) 3 A (NO), Motor load: 3 A (NC) 3 A (NO) Rated voltage: 48 VDC, Inductive load: 3 A (NC) 3 A (NO), Motor load: 3 A (NC) 3 A (NO) Rated voltage: 115 VDC, Inductive load: 0.8 A (NC) 0.8 A (NO), Motor load: 0.2 A (NC) 0.2 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: 3 A NO: 3 A |
| Protective circuit | Classification of protection against electric shock: Class III Short-circuit protective device: 10 A fuse type gI or gG (IEC269) |
| Indicator | LED (Possible to change between Light when operating and Light when not operating.) Voltage: Common use for AC/DC 10 to 115 V Leakage current: Approx. 0.5 mA |
| Conduit size | G1/2 |
| Earth terminal | Without ground terminal |
| Cable specifications | Oil-resistant cable, 4 cores (0.3 m) |
| Ambient temperature | Operating: -10 CEL to 80 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 | 25 m Ohm Max. (Initial value) * Excluding the resistance of cable. (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: 2,000 VAC Between each terminal and non-live-metallic part: 2,000 VAC (Condition, 50/60 Hz for 1 min) |
| Durability (Mechanically) | 30,000,000 operations Min. (No load) (Temperature, Humidityconditions: 5 CEL to 35 CEL, 40 %RH to 70 %RH) |
| Durability (Electrically) | 30,000,000 operations Min. (Resistive load 10 mA at 24 VDC) (Temperature, Humidityconditions: 5 CEL to 35 CEL, 40 %RH to 70 %RH) |
| Pollution degree | 3 (EN60947-5-1) |
| 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 | IEC60529 (JEM): IP67 |
| Applicable standard (UL) | Standard No.: UL508 File number: E76675 |
| Applicable standard (TUV) | Standard No.: EN60947-5-1 File number: J9950959 |
| Applicable standard (CCC(CQC)) | Standard No.: GB14048.5 File number: 2003010305032365 |
| Applicable standard (EC Directive (Low Voltage Directive)) | 2006/95/EC |
| Mounting specification | Front mounting, Back mounting |
| Operating Force (OF) | Standard value 9.81 N Max. |
|---|---|
| Release Force (RF) | Standard value 0.98 N Min. |
| Pre-Travel (PT) | Standard value 15 +/- 5 DEG |
| Over-Travel (OT) | Standard value 30 DEG Min. |
| Movement Differential (MD) | Standard value 12 DEG Max. |
Precautions for correct use:
Set the stroke with the set position maker that is indicated in fluorescent color that is visible from the slit in the rubber cap. Proper stroke (degree) is between 30 and 40 degrees.
Note:
Head unit has double seal structure by fitting an oil seal and an X-ring. The rubber material of the head is oil-resistant rubber(NBR).
As of March 1, 2008
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