Operating Temperature: -10°C~+70°C at 65% relative humidity. Storage Temperature: -40°C~+70°C at 65% relative humidity. Insulation Resistance: 10 MegOhm, minimum at 500VDC. Dielectric Strength: 700VAC for 3 seconds (<0.5mA allowable, between + lead and frame). Noise: Measured at rated voltage, 1 meter distance in an Anechoic chamber, background noise 16dBA Max. Measured for varying flow rates in accordance with ANSI 12.11 specifications. Vibration: JIS C0040 Amplitude 1.5mm, Frequency 10-55Hz, for one hour per axis: X, Z, and Y. Shock: JIS C0041 Acceleration 100 G, Duration 6ms per axis: X, Z, and Y. Life: Life expectancy is 50,000 hours @ 25°C (±15°C), 65% (±20%) relative humidity continuous operation for sleeve bearing and 75,000 hours @ 25°C (±15°C), 65% (±20%) relative humidity continuous operation for dual ball bearing. Safety: Locked rotor and polarity protected. Meets UL, CUL, TUV, and CE. Insulation Class: Class A. Bearings: Dual pre-loaded shielded ball bearings.