AM2 – 25mm A/F

Plan and side view diagrams of the Termate standoff insulators in the AU2 footprint. Labels show width across flats is 1 inch, width across corners is 1 and 1/8 inches, base diameter is 7/8 inches, and shoulder height is 1/4 inches. Other dimensions are labelled with a letter, indicating a specific measurement in the table below.


STEP files available for download, click part number.

Part number Height [H] (mm) Thread Size*  [M] Thread Depth [D] (mm) Maximum Tightening Torque (Nm) Tensile Strength**(N) Cantilever Strength** (N) Box Qty.
AM2-025-06 25 M6 7 11 9500 5500 120
AM2-030-06 30 M6 7 11 9500 5200 120
AM2-030-08 30 M8 9 28 12500 7300 120
AM2-035-06 35 M6 7 11 9500 4900 120
AM2-035-08 35 M8 9 28 12800 6900 120
AM2-040-06 40 M6 7 11 9500 4700 60
AM2-040-08 40 M8 11 28 13000 6600 60
AM2-050-06 50 M6 7 11 9600 4100 60
AM2-050-08 50 M8 11 28 13600 5800 60
AM2-060-06 60 M6 7 11 9700 3600 50
AM2-060-08 60 M8 11 28 14100 5100 50
AM2-080-06 80 M6 7 11 9800 2500 40
AM2-080-08 80 M8 11 28 15100 3600 40
AM2-100-06 100 M6 7 11 9900 1400 30
AM2-100-08 100 M8 11 28 16100 2200 30


*Fixing details: Hole diameter = Standoff thread size [M]+1 mm. e.g. M6 Thread = 7 mm hole diameter

** Tensile and Cantilever Strength figures are based on tests carried out at normal room temperature, nominal 23ºC

UL Recognised Component File Number E505645 UL_Mark_Recognised_Component


Material Glass Reinforced Polyamide 6.6
Insert Material Brass
Operating Temperature -20°C to +130°C
Flammability UL94-V0
Oxygen Index 32%
Glow Wire 960°C


Equipment Voltage, Ue 1000 V AC/ 1500 V DC
Insulation Voltage, Ui 1000 V AC/ 1500 V DC
Impulse Voltage, Uimp 12 kV




 +44 (0) 1159 784 652       sales@termate.com

Termate’s AM2 low voltage standoff insulator range provides excellent electrical insulation and mechanical strength for a variety of low voltage applications. Standoff insulators can also be referred to as post insulators, egg insulators, bobbin insulators, or busbar isolators. This standoff insulator range is available in heights from 25mm to 100mm and insert sizes of M6 and M8. Technical data is found on our datasheet, or the table above displays heights, thread size and depth, maximum tightening torques, tensile and cantilever strengths, and box quantities available. 

  • Made from UL94-V0 rated, self-extinguishing material 
  • Halogen Free 
  • Operating temperature range of -20°C to +130°C (-4°F up to +266°F) 
  • Insulation voltage of up to 1000 V AC / 1500 V DC 
  • Equipment voltage of up to 1000 V AC / 1500 V DC 
  • UL Recognised Component; file number E505645 

View our standoff insulator cross reference tool. 


Our standoff insulators are made from a halogen-free glass-reinforced material, which was specifically chosen for its mechanical and electrical insulation properties. Brass inserts are used due to this alloy’s resistance to corrosion. The injection moulding process, combined with our excellent quality control and inspection procedures, results in a consistent product across every production run. 


Termate carries out rigorous and appropriate testing on all our products. The AM2 range of standoff insulators successfully passed extensive testing to ensure their electrical and mechanical capabilities. AM2 low voltage standoff insulators meet the requirements for UL94-V0. UL94 being a standard for the safety of flammability of plastic materials for parts in devices and appliances released by the Underwriters Laboratories 

The insulating stand off range is also fully compliant with the applicable clauses within the international standard for low-voltage switchgear and controlgear assemblies, IEC 61439. 


Our standoff insulators are suitable for assemblies up to 1000 V AC or up to 1500 V DC. They are intended to safely and securely support and insulate busbars and other live conductors by maintaining a distance between two surfaces. In these types of installations, the electrical insulation and the mechanical strength of the support are paramount. Usual installations are within: 

  • Electrical panel boards 
  • Control panels 
  • Switchboards 
  • Power factor correction 
  • Distribution boards 
  • Generators 
  • Switchgear 
  • Controlgear 
  • Drives 

These electrical installations can be found in a wide range of sectors including power distribution, rail (rolling stock & trackside), renewable energy, UPS (temporary and emergency power), and data centre power distribution. 

At Termate, we have been designing and manufacturing electrical insulating parts and components, such as our standoff insulators, from our Nottingham UK based factory for over 60 years. Quality is ensured on every product we produce. Our knowledge and experience of the raw materials used, the performance requirements, and the application of our products allow us to provide products that are safe and fit for purpose. 

    Thank you for your interest in Termate products. If you would like to get in touch, please call, email or use the contact form. We aim to respond to all enquiries within 24 hours.

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