Details
Safety Relay SR Series
Practical and reliable, with a three-year warranty, the best choice for building a safety circuit
The SR series safety relay is the control part of the safety circuit. This product is suitable for emergency stop buttons, safety door switches, safety gratings and other input products. It is a safety relay with 3 NO (normally open) safety output contacts and 1 NC (normally closed) auxiliary output contact. It has single and dual channel operation, manual or automatic reset, and short circuit monitoring between channels.Features
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Application Scenario

Safety relay box layout
Technical Parameters
model | SR-3O1CP |
Comply with standards | Safety integrity level: SIL3 Performance level: PLe Safety category: Cat.4 |
Contact material | AgSnO₂ + 0.2μmAu |
Number of contacts | 3NO+1NC |
Contact life | 10⁷ times or more |
Input devices | Emergency stop button, safety door, PNP type safety light curtain |
Electromagnetic compatibility | EN60947, EN61000-6-2, EN61000-6-4 |
Rated insulation voltage | 250VAC |
Rated impulse voltage | 6000V(1.2/50us) |
Supply voltage | 24V DC/AC |
Voltage tolerance | 0.85~1.1 |
Current consumption | ≤90mA(24V DC)/≤240mA(24V AC) |
Input Current | ≤50mA(24V DC) |
Lead wire resistance | ≤15Ω |
Electric shock fuse protection | 10AgL/gG,NEOZED (normally open contact) |
6AgL/gG,NEOZED (normally closed contact) | |
Switching capacity (EN60947-5-1) | AC-15,5A/230V;DC-13,5A/24V |
Vibration frequency | 10HZ~55HZ |
Vibration Amplitude | 0.35mm |
Operating temperature | -20℃~+60℃ |
Storage temperature | -40℃~+85℃ |
Relative humidity | 10%~90% |
Altitude | ≤2000m |
Dielectric strength | 1500V AC, 1min |
Overvoltage level | III |
Pollution degree | 2 |
Clearance and creepage distances | Compliant with EN60947-1 |
Short power outage | 20ms |
Recovery time | ≤100ms |
Release buffer time | ≤30ms |
Pull-in buffer time | ≤300ms |
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