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- 2 cable entries M 20 x 1.5
- Snap action with constant contact pressure up to switching point
- Mounting details to EN 50047
- Thermoplastic enclosure
- Double-insulated
- 58 mm x 50,5 mm x 31 mm
- Good resistance to oil and petroleum spirit
- Wide range of alternative actuators
- Actuator heads can be repositioned by 4 x 90°
Ordering data
| Note (Delivery capacity) | Not available! |
| Product type description | Z4R 256-02Z |
| Article number (order number) | 101149555 |
| EAN (European Article Number) | 4030661152189 |
Approval - Standards
| Certificates | cULus cCSAus CCC EAC |
General data
| Standards | BG-GS-ET-15 EN ISO 13849-1 IEC 60947-5-1 |
| Housing construction form | Norm construction design |
| Enclosure material | Plastic, glass-fibre reinforced thermoplastic, self-extinguishing |
| Material of the contacts, electrical | Silver |
| Gross weight | 99.5 g |
General data - Features
| Safety functions | Yes |
| Number of safety contacts | 2 |
Safety appraisal
| Standards | EN ISO 13849-1 |
| Mission Time | 20 Year(s) |
Safety appraisal - Safety outputs
| B10d Normally-closed contact (NC) | 20,000,000 Operations |
Mechanical data
| Actuating element | Roller plunger |
| Mechanical life, minimum | 20,000,000 Operations |
| Actuating force, minimum | 9 N |
| Positive break force, minimum | 19 N |
| Actuating speed, minimum | 20 mm/min |
| Actuating speed, maximum | 1 m/s |
| Note (Actuating speed) | Actuating speed with actuating angle 30° to switch axis |
Mechanical data - Connection technique
| Terminal Connector | Screw connection |
| Cable section, minimum | 0.75 mm² |
| Cable section, maximum | 2.5 mm² |
| Note (Cable section) | All indications about the cable section are including the conductor ferrules. |
Mechanical data - Dimensions
| Length of sensor | 31 mm |
| Width of sensor | 58 mm |
| Height of sensor | 90.5 mm |
Ambient conditions
| Degree of protection | IP65 to EN 60529 IP67 to EN 60529 |
| Ambient temperature, minimum | -30 °C |
| Ambient temperature, maximum | +80 °C |
Ambient conditions - Insulation value
| Rated insulation voltage Ui | 250 V |
| Rated impulse withstand voltage Uimp | 6 kV |
Electrical data
| Thermal test current | 10 A |
| Required rated short-circuit current to EN 60947-5-1 | 1,000 A |
| Utilisation category AC-15 | 240 VAC |
| Utilisation category AC-15 | 4 A |
| Utilisation category DC-13 | 24 VDC |
| Utilisation category DC-13 | 1 A |
| Switching element | Opener (NC) |
| Switching principle | Snap switch element |
| Bounce duration, maximum | 3 ms |
| Switching frequency | 5,000 /h |
| Switchover time, maximum | 5.5 ms |
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