Omrdon Technology 
OMS-CS24/2S-1/2NPT (M20*1.5,G1/2,G3/4 thread) Explosion-proof Tubular Transient Surge Protectors, Explosion-proof Signal Lightning Protectors for Industrial Measurement and Control Systems and Explosion-proof Environments
Products::
OMEDON OMS-CS24 10KA EX Series Explosion-proof Tube Transient Surge Protectors is a high-reliability surge protection device designed for industrial measurement and control systems and explosion-proof environments. The product adopts fully sealed 304 stainless steel shell, with excellent explosion-proof, corrosion-proof and moisture-proof performance, suitable for petroleum, chemical, natural gas, electric power and other industries in hazardous areas (Zone 1/2), for sensors, transmitters, signaling circuits and other key equipment to provide strong overvoltage protection.
OMS-CS24 10KA EX is the ideal protection solution for long-term stable operation in harsh industrial environments.
Functional Features::
- ✅ Highly reliable explosion-proof design:Applicable to GB/IEC explosion-proof standard, protects the instrument for safe operation in flammable and explosive environments.
- ✅ Powerful drainage capacity:Maximum inrush current 10KA, effectively resisting lightning induction and operational overvoltage.
- ✅ Rapid response:≤ 1ns response time ensures that equipment is instantly protected from transient overvoltages.
- ✅ Low insertion loss:≤ 0.2dB without affecting signal transmission quality.
- ✅ All-metal sealed construction:304 stainless steel shell, corrosion-resistant, moisture-proof, anti-vibration, suitable for harsh industrial environments.
- ✅ Flexible installation:Support a variety of threaded interfaces (M20*1.5, G1/2″, G3/4″, 1/2″ NPT). It can be customized to meet different site installation requirements.
typical application
- Sensors and Transmitters in Industrial Automation Systems
- Petroleum, chemical, natural gas and other explosion-proof environment of the instrumentation equipment (such as: thermometer, liquid level meter, flow meter)
- Transient overvoltage protection for fieldbuses, analog signal circuits, and control systems
Technical Parameters
| parameter category | Specification |
|---|---|
| model number | OMS-CS24/2S (EX) |
| protection circuit | 1 channel |
| test level | B2, C2, D1 |
| Rated Working Voltage | 24V (6V/12V/24V/48V optional) |
| Maximum Continuous Operating Voltage | 32V |
| B2 Impulse withstand voltage (Uoc) X-C | 6KV (10/700μs) |
| C2 Nominal inrush current (In) X-C | 5KA (8/20μs:5kA & 1.2/50μs: 10kV) |
| C2 Maximum inrush current (Imax) X-C | 10KA (8/20μs) |
| D1 Lightning impulse current (Iimp) X-C | 1KA (10/350μs) |
| Voltage protection level (Up) X-X | ≤60V |
| response time | ≤1ns |
| Rated load current | 1A |
| electrical insulation resistance | ≥100MΩ |
| capacitance value | ≤1pF |
| insertion loss | ≤0.2dB @ 10MHz |
| Threaded Interface Type | M20×1.5, 1/2NPT, G1/2, G3/4 (support customization) |
| Explosion-proof grade | Ex ia IIC T4 |
| Housing Material | 304 stainless steel |
| Lead wire specifications | 16AWG, length 150mm±10% |
| Grounding method | Specialized grounding wire |
| protection class | IP67 |
| operating temperature | -40°C ~ +85°C (altitude ≤ 4km) |
| Environmental humidity | 30%~90% RH |
| Certification Standards | CE, RoHS, FCC, ISO9001:2015 |
| standards-compliant | GB/T18802.21、IEC61643-21 |
| Product weight | Approx. 138g |
Simulated Lightning Impact Test
Product Dimensions and Wiring Diagram
Installation instructions
● The protector shell is made of corrosion-resistant stainless steel, can be installed directly in the field sensor or equipment junction box, instead of the traditional cable sealing connector, the terminals are connected in parallel to the signal circuit.
● Ground wires should be as short and direct as possible to ensure good grounding.
● The product is maintenance-free. If the system has abnormal transmission and returns to normal after replacing the protector, the protector is damaged and needs to be replaced.
