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Quick links OMRON IA Limit Switches in your country.
Please contact our European headquarters.
| Shape / Structure | Enclosed Limit switches |
|---|---|
| service life | General type |
| Operating mechanism | Snap action |
| Actuator | Sealed roller plunger |
| Frequency | 50/60 Hz |
| Switching mechanism | Self-reset mechanism |
| Contact configuration | Single-Pole, Double-Throw type |
| Contact form | 1c |
| Load | General load |
| Ratings (AC): Non-Inductive load | Rated voltage: 125 VAC, Resistive load: 15 A (NC) 15 A (NO), Lamp load: 3 A (NC) 1.5 A (NO) Rated voltage: 250 VAC, Resistive load: 15 A (NC) 15 A (NO), Lamp load: 2.5 A (NC) 1.25 A (NO) Rated voltage: 480 VAC, Resistive load: 10 A (NC) 10 A (NO), Lamp load: 1.5 A (NC) 0.75 A (NO) |
| Ratings (AC): Inductive load | Rated voltage: 125 VAC, Inductive load: 15 A (NC) 15 A (NO), Motor load: 5 A (NC) 2.5 A (NO) Rated voltage: 250 VAC, Inductive load: 15 A (NC) 15 A (NO), Motor load: 3 A (NC) 1.5 A (NO) Rated voltage: 480 VAC, Inductive load: 6 A (NC) 6 A (NO), Motor load: 1.5 A (NC) 0.75 A (NO) |
| Ratings (DC): Non-Inductive load | Rated voltage: 125 VDC, Resistive load: 0.5 A (NC) 0.5 A (NO), Lamp load: 0.5 A (NC) 0.5 A (NO) Rated voltage: 250 VDC, Resistive load: 0.25 A (NC) 0.25 A (NO), Lamp load: 0.25 A (NC) 0.25 A (NO) |
| Ratings (DC): Inductive load | Rated voltage: 125 VDC, Inductive load: 0.05 A (NC) 0.05 A (NO), Motor load: 0.05 A (NC) 0.05 A (NO) Rated voltage: 250 VDC, Inductive load: 0.03 A (NC) 0.03 A (NO), Motor load: 0.03 A (NC) 0.03 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 power factor of 0.4 Min. (AC) and a time constant of 7 ms Max. (DC). Motor load has an inrush current of 6 times the steady-state current. |
| Inrush current | NC: 30 A NO: 15 A |
| 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 | 0.01 mm/s to 0.5 m/s |
|---|---|
| Permissible operating frequency (Mechanically) | 120 operations / 1 minute Max. |
| Permissible operating frequency (Electrically) | 20 operations / 1 minute Max. |
| Contact resistance | 15 m Ohm Max. (Initial value) (Measuring method is contact resistance meter.) |
| Insulation resistance | Between each terminal of the same polarities: 100 M Ohm Min. Between live-metallic part and ground: 100 M Ohm Min. Between each terminal and non-live-metallic part: 100 M Ohm Min. (at 500 VDC Megger) |
| Dielectric strength | Between each terminal of the same polarities: 1,000 VAC Between live-metallic part and ground: 2,000 VAC Between each terminal and non-live-metallic part: 2,000 VAC (50/60 Hz for 1 min) |
| Durability (Mechanically) | 10,000,000 operations Min. * When operate the actuator with the specified value of the Over Travel. (No load) (Temperature, Humidityconditions: 5 CEL to 35 CEL, 40 %RH to 70 %RH) |
| Durability (Electrically) | 500,000 operations Min. * When operate the actuator with the specified value of the Over Travel. (Resistive load 15 A at 250 VAC) (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 50 m/s2. |
| Degree of protection | IEC60529 (JEM): IP65 NEMA250: Type1 |
| Applicable standard (UL) | Standard No.: UL508 File number: E76675 |
| Applicable standard (CSA) | Standard No.: C22.2 NO.14 File number: LR45746 |
| Applicable standard (CCC(CQC)) | Standard No.: GB14048.5 File number: 2003010303077623 |
| Mounting specification | Side mounting (diagonal) |
| Operating Force (OF) | Standard value 4.90 N Max. |
|---|---|
| Release Force (RF) | Standard value 0.98 N Min. |
| Pre-Travel (PT) | Standard value 1 mm Max. |
| Over-Travel (OT) | Standard value 3.5 mm Min. |
| Movement Differential (MD) | Standard value 0.12 mm Max. |
| Operating Position (OP) | Standard value 35.7 +/- 0.8 mm |
As of March 1, 2008