884. INSTALLATIONThe meter is designed for installation in modular distri-bution boards on a 35 mm rail. The meter housing is madeof plastic.Housing dimensions: 105 x 110 x 60 mm. There are screwterminal strips on the outer side of the meter which enable theconnection of external wires with diameter up to 5.3 mm2 /indi-rect measurement/ and up to 16 mm 2 /direct measurement/.The meters should not be installed on the rail in direct contactwith other devices that emit heat (e.g. other N43 meters).There must be a minimum 5 mm spacing between devicesin order to enable heat transfer from a housing to the environ-ment. Otherwise, the ambient temperature of a meter workingin direct contact with other devices can exceed the operatingtemperature specified in rated operating conditions.