Multi-function configurable | 24V DC | 2NO | Auto/Monitored/Manual Reset
CZSR8901-2A  Multi-function configurable | 24V DC | 2NO | Auto/Monitored/Manual Reset
CZSR8901-2A is suitable for the application of multi switch-type safety devices (e.g. E-Stop buttons, safety gates, two-hand buttons and etc.). It can support Max. 3 safety devices input and 2 relay contacts output (N/O). It can be configured with different control logics to meet various field applications.
Input Device:
Multi-function configurable
Supply Voltage:
24V DC
Number of Contacts:
2NO
Reset Mode:
Auto/Manual/Monitored reset
CZSR8901-2A
Product details
Technichal Data
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Multi-function configurable | 24V DC | 2NO | Auto/Monitored/Manual Reset


Product Name  CZSR8901-2A Multi-function configurable input Safety Relay
Number of channels  3 Dual channel inputs / 2 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
Ambient temperature  -20℃~+60℃
Certifications
 TUV SIL3; CE; PLe; Cat.4


Multi-function configurable | 24V DC | 2NO | Auto/Monitored/Manual Reset

Multi-function configurable | 24V DC | 2NO | Auto/Monitored/Manual Reset

Multi-function configurable | 24V DC | 2NO | Auto/Monitored/Manual Reset


Multi-function configurable | 24V DC | 2NO | Auto/Monitored/Manual Reset


Product Application
General Features
Power Supply
Input
Output
Time
Operating Conditions
Insulation
Dimensions
Housing
Product Approvals
Standard / Specification
Safety-related Parameters (SIL)
Safety-related Parameters (PL)
EMC
Connection
Installation
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Technichal Data
Product Application
Application Multi-function configurable
General Features
General features Multi-function configurable; 24V DC; 2NO; Auto/Monitored/Manual Reset
Power Supply
Supply Voltage (Ue) 19.2V~30V DC
Current consumption ≤100mA (24V DC); ≤180mA (24V AC)
Power protection Reverse protection
Power supply mode Independent power supply
Power connecting mode Terminal
Input
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
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
Time
Switch-on delay ≤100ms
Delay-on de-energisation ≤30ms
Recovery time ≤100ms
Supply interruption before de-energisation 20ms
Operating Conditions
Ambient temperature -20℃~+60℃
Storage temperature -40℃~+80℃
Relative humidity 10%~90%
Vibration Frequency: 10Hz~55Hz; Amplitude: 0.35mm
Insulation
Overvoltage category
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
Dimensions
Depth 114.5mm
Height 99.0mm
Width 22.5mm
Housing
Material PA
Protection type IP20
Flammability rating UL94/V0
Colour Yellow/Grey
Product Approvals
Approvals SIL (TUV); CE
Standard / Specification
Functional safety SIL3, in accordance with IEC 61508
CE MD directive; LVD directive
Safety-related Parameters (SIL)
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%
Safety-related Parameters (PL)
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) 662 years
Number of cycles until 10% of the components fail dangerously (B10d) 550000(5A)
EMC
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
Connection
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
Installation
Mounting type DIN35mm
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