Multi-function configurable
24V DC
2NO+4SO
Auto/Manual/Monitored reset
| Product Name | CZSR8901-2A4S Multi-function configurable input Safety Relay |
| Number of channels | 6 Dual channel inputs / 6 outputs |
| Supply voltage(Ue) | 24V DC |
| Input signal | Switch: E-Stop button, safety gate, light curtain, two-hand push buttons, safetymat, magnetic switch, etc. |
| Output signal | Relay: 2NO; Semiconductor: 4SO |
| Ambient temperature | -20℃~+60℃ |
| Certifications |
TUV SIL3; CE; PLe; Cat.4 |
| Application | Multi-function configurable |
| General features | Multi-function configurable; 24V DC; 2NO+4SO; Auto/Monitored/Manual Reset |
| Supply Voltage (Ue) | 19.2V~30V DC |
| Current consumption | ≤110mA (24V DC); ≤180mA (24V AC) |
| Power protection | Reverse protection |
| Power supply mode | Independent power supply |
| Power connecting mode | Terminal |
| Input device | E-Stop button, safety gate, light curtain, two-hand push buttons, safetymat, magnetic switch, etc. |
| Input current | ≤10mA |
| Max. overall cable resistance | ≤15Ω |
| Output signal | Relay contact |
| Number of contacts | 2 |
| Contact type | 2NO |
| Contact material | AgSnO₂ |
| Contact fuse protection | 10A fast/6A slow |
| Utilisation category | AC-15,5A/230V; DC-13,5A/24V |
| Output signal' | Semiconductor |
| Number | 4 |
| Type | 4SO |
| Drive capability | 2A/24V DC |
| Switch-on delay | ≤100ms |
| Delay-on de-energisation | ≤30ms |
| Recovery time | ≤100ms |
| Supply interruption before de-energisation | 20ms |
| Ambient temperature | -20℃~+60℃ |
| Storage temperature | -40℃~+80℃ |
| Relative humidity | 10%~90% |
| Vibration | Frequency: 10Hz~55Hz; Amplitude: 0.35mm |
| Overvoltage category | Ⅲ |
| Pollution degree | 2 |
| Rated insulation voltage | 250V AC |
| Rated impulse withstand voltage | Input~Output: 6000V (1.2/50us); Between outputs: 4000V (1.2/50us) |
| Insulation strength | 1500V AC, 1min |
| Insulation resistance | Input~Output: ≥100MΩ; Between Outputs: ≥100MΩ |
| Airgap creepage | In accordance with EN 60947-1 |
| Depth | 114.5mm |
| Height | 99.0mm |
| Width | 45.0mm |
| Material | PA |
| Protection type | IP20 |
| Flammability rating | UL94/V0 |
| Colour | Yellow/Grey |
| Approvals | SIL (TUV); CE |
| Functional safety | SIL3, in accordance with IEC 61508 |
| CE | MD directive; LVD directive |
| Type of equipment | Type A |
| Safety integrity level (SIL) | SIL 3 |
| Mode of operation (Low Demand) | IEC 61508 - Low Demand |
| Safe failure fraction (Low Demand) (SFF) | ≥99% |
| Diagnostic coverage (Low Demand) （DC） | ≥99% |
| Mode of operation (High Demand) | IEC 61508 - High Demand |
| Safe failure fraction (High Demand) (SFF) | ≥99% |
| Diagnostic coverage (High Demand) （DC） | ≥99% |
| Performance level (PL) | PLe |
| Category (Cat.) | Cat.4 |
| Stop category | 0 |
| Mission time (TM) | 20 years |
| Diagnostic covery (DCavg) | ≥99% |
| Mean time to repair (MTTR) | 0 |
| Mean time to dangerous failure (MTTFd) | 352 years |
| Number of cycles until 10% of the components fail dangerously (B10d) | 550000(5A) |
| Electromagnetic compatibility | In accordance with IEC 61326-1(GB/T 18268), IEC 61326-3-1 |
| Electrical fast transient/burst immunity | In accordance with IEC 61326-3-1 |
| Surge immunity | In accordance with IEC 61326-3-1 |
| Radiated,radio-frequency,electromagnetic field immunity | In accordance with IEC 61326-3-1 |
| Electrostatic discharge immunity | In accordance with IEC 61326-3-1 |
| Immunity to conducted disturbances, induced by radio-frequency fields | In accordance with IEC 61326-3-1 |
| Immunity to conducted, common mode disturbances in the frequency range 0 Hz to 150 kHz | In accordance with IEC 61326-3-1 |
| Conductor cross section solid range | 0.5~2.5mm² |
| Conductor cross section flexible range | 0.5~2.5mm² |
| Min. conductor cross section (AWG) | 24 |
| Max. conductor cross section (AWG) | 12 |
| Stripping length | 8mm |
| Screw thread | M3 |
| Connection method | Screw terminals |
| Min. tightening torque | 0.5Nm |
| Max. tightening torque | 0.6Nm |
| Mounting type | DIN35mm |
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