Product Introduction JMS2-110 impulse relay is suitable for AC counting track circuit as a track relay. Applicable environment (1) Temperature: -40~+60 (2) Relative humidity: not more than 90% (+25) (3) Air pressure: not less than 74.8kPa (equivalent to an altitude below 2500m) (4) Working position: horizontal (5) Vibration: when the frame frequency is 5Hz~55Hz, there should be no resonance; when the frame frequency is 5Hz~30Hz, the amplitude is not more than 0.35mm; when the frame frequency is more than 30Hz~55Hz, the amplitude is not more than 0.12mm; (6) Impact 40~80/time, acceleration is not more than 5g; (7) There should be no harmful gas causing explosion hazard around, and dust-proof measures should be taken. Model meaning