1. Ambient temperature: -25℃ ~ +55℃
2. Relative humidity: ≤98%
3. Normally workable when vibration frequency is 2-80Hz with acceleration of 0.7g
4. Pollution degree is 3, Installation group is Ⅲ

1. Power frequency with stand voltage: 2.5KV per min. (effective AC value)
2. Insulation resistance: ≥2MΩ
3. Allowable voltage fluctuation: ±20%
4. CTI≥100
5. Frequency: AC50～60Hz