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Positioned between compact and heavy-duty designs, the AM2 range offers a versatile balance of size and strength.

It’s engineered for a broad range of low- and medium-voltage assemblies, including drives, control gear, and power factor correction systems.

With a wide height range and excellent mechanical performance, AM2 delivers consistent insulation and structural stability across industrial, rail, and renewable applications.

It provides proven performance where flexibility, reliability, and safety are essential.

Need help specifying the right components?

Key Features

  • UL Recognised Component
    (Files E505645 (US) and E505645 (CA))

  • Height range: 25–100 mm, Thread sizes: M6, M8, M10

  • Material: Glass-reinforced polyamide 6.6 (halogen-free)
  • Insert material: Brass for corrosion resistance
  • Operating temperature: −40 °C to +130 °C (−40 °F to +266 °F)
  • Electrical rating: 1000 V AC / 1500 V DC, Impulse voltage: 12 kV
  • Flammability: UL 94 V-0, Glow wire: 960 °C
  • Oxygen Index: 32 %, CTI: 600 V
  • Low-smoke, self-extinguishing performance
  • Tested for tensile and cantilever strength at 23 °C
  • Convertible to Male/Male or Male/Female using Grub Screw Pack

Technical Information for AM2 Metric Range Standoff Insulators

You will find useful technical information below but, if you have any questions, please contact our technical team for support.

The below table shows the AM2 range of Termate standoff insulators.

The complete AM2 range is suitable for applications with an AC Equipment Voltage Ue up to 1000 V or DC Equipment Voltage Ue up to 1500 V.

The technical data provided in the table below provides information necessary for product selection and technical assessment in line with IEC and UL product standards.

We hold excellent stock of all of our products and will be happy to provide you a quotation for your requirements, please use our contact us page or email our customer support team.

Plan and side view diagrams of the Termate standoff insulators in the AM2 footprint. Labels show width across flats is 25mm, width across corners is 27mm, base diameter is 22mm, and shoulder height is 6mm. Other dimensions are labelled with a letter, indicating a specific measurement in the table below.
Part Number3D ModelDescriptionHeight
[H] (mm)
Thread Size*
[M]
Thread Depth
[D] (mm)
Maximum
Tightening Torque
(N·m)
Tensile Strength**
(N)
Cantilever Strength**
(N)
Box Qty.
AM2-025-06AM2-025-06 STEP file25mm high standoff insulator with M6 thread25M671195005500120
AM2-030-06AM2-030-06 STEP file30mm high standoff insulator with M6 thread30M671195005200120
AM2-030-08AM2-030-08 STEP file30mm high standoff insulator with M8 thread30M8928125007300120
AM2-035-06AM2-035-06 STEP file35mm high standoff insulator with M6 thread35M671195004900120
AM2-035-08AM2-035-08 STEP file35mm high standoff insulator with M8 thread35M8928128006900120
AM2-040-06AM2-040-06 STEP file40mm high standoff insulator with M6 thread40M67119500470060
AM2-040-08AM2-040-08 STEP file40mm high standoff insulator with M8 thread40M8112813000660060
AM2-050-06AM2-050-06 STEP file50mm high standoff insulator with M6 thread50M67119600410060
AM2-050-08AM2-050-08 STEP file50mm high standoff insulator with M8 thread50M8112813600580060
AM2-060-06AM2-060-06 STEP file60mm high standoff insulator with M6 thread60M67119700360050
AM2-060-08AM2-060-08 STEP file60mm high standoff insulator with M8 thread60M8112814100510050
AM2-080-06AM2-080-06 STEP file80mm high standoff insulator with M6 thread80M67119800250040
AM2-080-08AM2-080-08 STEP file80mm high standoff insulator with M8 thread80M8112815100360040
AM2-100-06AM2-100-06 STEP file100mm high standoff insulator with M6 thread100M67119900140030
AM2-100-08AM2-100-08 STEP file100mm high standoff insulator with M8 thread100M8112816100220030

* 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 23 °C.

Our Insulators have ISO M inserts with coarse threaded inserts in accordance with BS 3643-2 – Table 1 and ISO 262

Our metric insulators can be converted into Male/Male or Female/Male versions by fitting studs from our Grub Screw Pack.

RecognitionReference / LinkPreferred Name
UL US Recognised ComponentUS Certificate: UL-US-E505645
UL CA Recognised ComponentCA Certificate: UL-CA-E505645
EClass 8.027-08-10-08Insulator, plastic
EClass 14.027-08-10-03Bus bar holder (insulator, post insulator)
PropertiesValue / Measure / Unit
Insulator MaterialGlass Reinforced Polyamide 6.6 (PA66)
Insert MaterialBrass
Operating Range in Celsius−40 °C to +130 °C
Operating Range in Fahrenheit−40 °F to +266 °F
FlammabilityUL 94 V-0
Oxygen Index32%
Glow Wire960 °C
CharacteristicsValue
Maximum Alternating Current Equipment Voltage,
Ue
1000 V
Maximum Direct Current Equipment Voltage,
Ue
1500 V
Impulse Voltage,
Uimp
12 kV

The following table provides additional UL Yellow Card information, for the material used in AM2 standoff insulator range, required for assessing the suitability for incorporation into electrical equipment built to North American standards or for use when evaluating unlisted equipment for compliance with North American recognised standards, using methods such as NFPA 791.

PropertiesValueTest Method
Hot-wire Ignition (HWI)PLC 0UL 746A
High Amp Arc Ignition (HAI)PLC 1UL 746A
Comparative Tracking Index (CTI)PLC 0UL 746A
UV Exposure & Water Immersionf1UL 746C

Termate’s AM2 standoff insulator range provides excellent electrical insulation and mechanical strength for a variety of 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 25 mm to 100 mm and insert sizes of M6 and M8. Technical data is found on the table above which displays heights, thread size and depth, maximum tightening torques, tensile and cantilever strengths, and box quantities available.

  • Made from UL 94 V-0 rated, self-extinguishing material
  • Halogen Free
  • Operating temperature range of −40 °C to +130 °C
  • 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

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 can carry out rigorous and appropriate testing of your products or we can perform testing on our own products as required.

The AM2 range of standoff insulators have undergone extensive testing to ensure their electrical and mechanical capabilities.

AM2 standoff insulators meet the requirements for UL 94 V-0. UL 94 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 insulator range is a UL Recognised Component, more information can be found at UL Product IQ.

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:

  • Battery Energy Storage Systems
  • Electrical panel boards
  • Control panels
  • Switchboards
  • EV power trains
  • Power factor correction
  • Distribution boards
  • Generators
  • Switchgear
  • Controlgear
  • Drives, inverters and converters

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.

Termate is committed to the highest standard of customer focus and we have made every effort to maintain the accuracy and completeness of the information provided in this data.

Where improvements to our products affect their installation and usage we endeavour to contact any customers who may be affected.

Warranty as stated in our Terms and Conditions of Trading is void if any modification is made to the warranted product.

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