Siemens auxiliary contact 1NA+1NC 0.5 modules 5ST3010

Auxiliary contacts are secondary switching devices that operate in conjunction with primary switching equipment such as circuit breakers, relays, and contactors. These contacts are physically connected to the main switching mechanism and are activated simultaneously.

What are they used for? Auxiliary contacts are used for various functions, e.g. self-holding, consent/block, signaling, interlocking.

Features:

• Siemens series
• Contacts 1NO+1NC
• 0.5 module
• Electrical life span (switching cycles) typ 10.000
• Insulation voltage nominal value 440 Vac
• Impulse withstand voltage nominal value 4 kV
• Degree of protection IP20
• Number of fault signal contact blocks 0
• Number of NC contacts 1
• Number of NO contacts 1
• Number of CO contacts 0
• Connectable conductor cross section min 0.5 mm² - max 2.5 mm²
• Tightening torque with screw terminals max 1 Nm
• Type of conductor cross-sections that can be connected with AWG 24...12 conductors
• Height 90 mm
• Width 9 mm
• Depth 70 mm
• Net weight 55 g
• Ambient temperature during operation min -25 °C - max. 55 °C
• Ambient temperature during storage min admissible -40 °C - max admissible 75 °C