Technical data

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1.6 Electrical safety
EN 60950 Information technology equipment. Safety. General requirements.
… ITE safety standard that defines the requirements to reduce the risk of fire, electric
shock or injury to the user and those coming into contact with the equipment as
well as service personnel. Applicable to mains connected and battery fed ITE as
well as ITE intended for direct connection to the telephone network, irrespective of
feeding source.
1.7 Degree of protection
IEC 529 Degrees of protection provided by enclosures (IP Code)
… Classification of the degree of protection provided by electrical enclosures.
Protection of:
… Persons, against dangerous voltage inside the equipment
… Inside the equipment, against the penetration of solid foreign objects
… Inside the equipment, against damage due to the penetration of water.
For example IP 21:
… Protection against access to dangerous voltage with a finger
… Protection against the penetration of solid foreign objects ≥12.5 mm (0.51 in)
… Protection against damage due to the penetration of vertically
falling drip water.
Factor Severity Standard Comments Reference
Dimension (WxHxD) 55x100x128
mm (in) (2.17 x3.94 x 5.04 in) 2 card DIN-rail
35 x 121 x 119
(1.43 x 4.76 x 4.69 in) 1 card DIN-rail
Weight kg (pounds) < 0.6 (<1.3)
Mounting 35 mm DIN-rail EN 60715 Snap on mounting
(EN 50022)
Degree of protection IP 20 IEC 529 See 1.7
Cooling Convection, spacing: Spacing (left/right)
10 mm (0.4 in) recommended
(left/right) for full operating
25 mm (1.0 in) (above/below) temperature range
Enclosure material PC / ABS
Fire rating Flammability class V-0 UL 94 See 1.8
Enclosure
B A C K