Building Automation
Industrial Automation
Power Automation & Safety
Bangladesh Distributor
D4B-4A71N
Safety Limit Switch
Image
Standard sensitivity, IP67, Slow action, Self-reset mechanism, 2NC, Top roller plunger
| Shape/Structure |
Safety limit switches |
|---|---|
| Actuator |
Top roller plunger 12.7 dia. * 4.8 Sintered stainless steel roller Horizontal roller |
| Load |
General load |
| Degree of protection |
IEC60529 (JEM): IP67 NEMA250: Type3, 4, 4X, 6P, 13 |
- Ratings / Performance
As of August 8, 2016
| Shape/Structure | Safety limit switches |
|---|---|
| Service life | General type |
| Operating mechanism | Slow action |
| Actuator | Top roller plunger 12.7 dia. * 4.8 Sintered stainless steel roller Horizontal roller |
| Frequency | 50/60 Hz |
| Switching mechanism | Self-reset mechanism |
| Contact form | 2NC |
| Load | General load |
| Inrush current | NC: 30 A |
| Protective circuit | Classification of protection against electric shock: Class I (with ground terminal) Short-circuit protective device: 10 A fuse type gI or gG (IEC269) |
| Conduit size | M20 |
| Number of conduit | 1 |
| Earth terminal | With ground terminal |
| Ambient temperature | Operating: -40 to 80 ℃ |
| Ambient humidity | 使用時: 95%以下 |
| Permissible operating speed | 1 mm/s to 0.5 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: 100 MΩ Between live-metallic part and ground: 100 MΩ Between each terminal and non-live-metallic part: 100 MΩ (at 500 VDC Megger) |
| Dielectric strength | Between each terminal of the same polarities: 4380 V Between each terminal of the different polarities (Between switch terminals): 4380 V Between live-metallic part and ground: 4380 V Between each terminal and non-live-metallic part: 4380 V (VAC. r.m.s.) |
| Durability (Mechanically) | 10,000,000 operations Min. (No load) (Temperature, Humidity conditions: 5 CEL to 35 CEL, 40 %RH to 70 %RH) |
| Durability (Electrically) | 500,000 operations Min. (Resistive load 10 A at 250 VAC) (Temperature, Humidity conditions: 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 NEMA250: Type3, 4, 4X, 6P, 13 |
| Mounting specification | Front mounting |
| Operating Force （OF） | Standard value Max. 18.63 N |
|---|---|
| Release Force （RF） | Standard value Min. 1.96 N |
| Pre-Travel （PT） | Standard value 2 mm Max. |
| Over-Travel （OT） | Standard value 5 mm Min. |
| Operating Position （OP） | Standard value 48 +/- 1 mm |
| Total Travel （TT） | Reference value 7 mm |
| Free Position （FP） | Standard value 51 mm Max. |
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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