【额定电压，额定电流】 1. For circuits for resistive load and for motor load, the rated current for motor load is placed between round brackets and immediately follows the rated current for resistive load. The symbol for the nature of the supply is placed before or after the current and voltage ratings.
对于阻性和电动机负载,额定电动机负载的电流用圆括号括住,紧跟着阻性负载的电流.如下所示: 
2. For circuits for resistive load and for capacitive load, the marking of the peak surge current is separated from the marking of the rated current for resistive load by a stroke and follows immediately the rated current for resistive load.
对于阻性和容性负载,峰值冲击电流及阻性电流用’/’分开.如下所示: 
3. For circuits for resistive load and for tungsten filament lamp load, the peak surge current for tungsten filament lamp load is placed between square brackets and follows immediately the rated current for resistive load
对于阻性和钨丝灯负载,钨丝灯的峰值冲击电流值放在方括号内,紧跟着阻性负载电流.如下: 
4. Information concerning declared specific loads may be given by reference to drawings or to types,
对于一些特殊负载的开关,其可用图示或类型来表示,如下示:
"Electric motor, drawing number ......, parts list No. ......., made by......",
or "5 × 80 W fluorescent lamp load".
5. For circuits for inductive load with a power factor of not less than 0.6, the rated current for inductive load is placed between double pointed brackets. The symbol for the nature of the supply is placed before or after the current and voltage ratings
对于功率因素不小于0.6的电感负载,电流值置于双引号内,如下图:
6. For circuits for specific load of motor with a locked rotor and with a power factor not less than 0,6, the rated current of the motor shall be provided by adding the rated current of the motor (for example, 3 A) as a second value within round brackets, separated by a stroke.
对于标有堵转电流的马达类负载且功率因子大于0.6,马达的额定电流也要圆括内的第二位标出(如: 3A) 
【额定环境温度】 1. Information about rated ambient temperature shall be provided by indicating the lower temperature value preceding the letter “T”, the higher temperature value following the letter “T”.
开关的使用环境温度也要 | 
