Switching hermetically sealed cooling compressor motors with manual reset of the overload release
AC-8b
Switching hermetically sealed cooling compressor motors with automatic reset of the overload release
Direct current
DC-1
Non-inductive or low-inductive load, resistance furnaces
DC-3
Shunt motors: Starting, braking by reversal, inching, dynamic braking of DC motors
DC-5
Seriers motors: Starting, braking by reversal, inching, dynamic braking of DC motors
DC-6
Switching of incandescent lamps
Utilization categories for auxilliary contactors according to IEC/EN60947-5-1
Type of current
Utilization category
Typical application
Alternating current
AC-12
Controlling ohmic and inductive loads when isolation through optocouplers is used
AC-13
Controlling semiconductor loads when isolation through transformers is used
AC-14
Controlling small electromagnetic loads (≤ 72 VA)
AC-15
Controlling small electromagnetic loads (≥ 72 VA)
Direct current
DC-12
Controlling ohmic and electronic loads when isolation through optocouplers is used
DC-13
Controlling DC electromagnets
DC-14
Controlling electromagnetic loads with built-in economy resistors
Utilization categories for load switch, disconnector, circuir breaker and Switching-safets-units according to IEC947-3, EN60947, DIN VDE0660 part 107
Type of current
Utilization category
Typical application
Alternating current
AC-20A(B) 1)
Making and breaking without load
AC-21A(B) 1)
Switching of ohmic loads, including small overloads
AC-22A(B) 1)
Switching of mixed ohmic and inductive loads, including small overloads
AC-23A(B) 1)
Switchung of motors or other high-inductive loads
Direct current
DC-20A(B) 1)
Making and breaking without load
DC-21A(B) 1)
Switching of ohmischer Last einschließlich geringer Überlast
DC-22A(B) 1)
Switching of gemischter ohmischer und induktiver Last einschließlich geringer Überlast (z.B. Nebenschluss-Motoren)
DC-23A(B) 1)
Switching of Motoren oder anderer hochinduktiver Last (z.B. Reihenschluss-Motoren)
1) A: frequent actuation, B: casual actuation
All the switchgears in our range are designed in accordance with VDE0660 for the utilization category AC-3. For the permissiböe power data, please see the respective options.
