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Product description

With 70 Nm rated torque and 2000 U/min, the Siemens 1FT6108-8AC71-4AE0 is clearly positioned within the SIMOTICS S 1FT6 series. This permanent-magnet three-phase synchronous motor uses natural cooling and is specified for 100 K thermal utilisation. Its mechanical base design is IM B5; IM V1 and IM V3 are listed as mounting positions. Feedback is provided by a Sin/Cos incremental encoder with a 1-Vss signal and no DRIVE-CLiQ interface. Power and signal connections use plug connectors. The connector outlet points axially towards the drive end. This exact identifier combines the encoder with a keyed shaft, runout accuracy R and a holding brake. Vibration severity is N, and the degree of protection is IP64. Electrical feedback, shaft design, brake and connector direction are therefore separate variant characteristics. The motor has a shaft height of 100 mm. For the version with holding brake, its installation length is 516 mm; width and height are each approximately 240 mm. Variant-specific weight is 60 kg. The braked version has a moment of inertia of 286 × 10^-4 kgm². The flange contour measures 215 × 215 mm, while the outer cross-section reaches approximately 240 × 240 mm. This flange version remains assigned to the IM B5 design. Length and mass differ from the version without a brake, so the values of the braked design apply to this product. The complete order number 1FT6108-8AC71-4AE0 remains unchanged in the title, specifications and SEO data. Technical identification considers rated torque, rated speed, encoder type, brake, shaft, connector direction and installation dimensions together; none of these details is inferred from an abbreviated family designation.

Siemens 1FT6108-8AC71-4AE0 Example image – The item supplied will have the stated manufacturer or type number and the stated condition category. Serial number, manufacturing date, labels, colour, packaging and normal signs of use or storage may differ.

Specifications

Manufacturer Siemens
Product series SIMOTICS S 1FT6
Manufacturer/order/identification number 1FT6108-8AC71-4AE0
Device type Three-phase synchronous servomotor
Rated torque 70 Nm
Rated speed 2000 U/min
Thermal utilisation 100 K
Cooling Natural cooling
Design IM B5 (IM V1, IM V3)
Connection type Power and signal plug connectors
Connector outlet Axial on the drive end
Encoder system Sin/Cos incremental encoder 1 Vss, without DRIVE-CLiQ
Shaft With key, runout accuracy R
Holding brake Present
Degree of protection IP64
Vibration severity N
Shaft height 100 mm
Moment of inertia 286 × 10^-4 kgm² (with holding brake)
Dimensions approx. 516 × 240 × 240 mm (L × W × H)
Weight 60 kg
Control cabinet with PLC modules and automation components
Industrial production environment

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FAQ

Frequently asked questions

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What torque and speed does the Siemens 1FT6108-8AC71-4AE0 have?

This version is specified with 70 Nm rated torque and 2000 U/min rated speed.

Which encoder and brake version is installed?

The configuration includes a Sin/Cos incremental encoder with a 1-Vss signal without DRIVE-CLiQ and a holding brake.

What applies if an item develops a defect within 14 days?

For the condition categories “Used, removed from an installation” and “New, old stock”, the contractual 14-day right of return in the event of a defect applies. The defect must occur within 14 calendar days after delivery and be reported in text form within the same period.

In particular, the REHA tamper-evident seal must remain fully intact and our RMA approval is required before return. In an accepted case, we decide between replacement and refund. Details in Section 11 of the Terms.

Which shipping methods and delivery times are available?

The shipping method, shipping cost and estimated delivery time are confirmed for the specific order. Depending on the item, destination and urgency, we can check parcel, express or freight shipping as well as collection.

A delivery date is binding only if we expressly confirm it as binding.

Which payment terms apply?

The payment terms stated in the checkout or order confirmation apply. Depending on the order and customer, payment is made in advance or against invoice.

International deliveries and deliveries to new customers are generally made against advance payment unless we expressly confirm another payment arrangement.

Can I return an item ordered incorrectly or found incompatible?

No. There is no general B2B right of return, exchange, cancellation or withdrawal. Incorrect or duplicate orders and a lack of suitability or compatibility with the customer’s installation are not covered by the contractual 14-day right of return in the event of a defect. Details in Section 12 of the Terms.

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You may request an individual quotation for several items or larger quantities. We then check availability and pricing for the specific requirement; there is no entitlement to a quantity discount. Open the quick enquiry.

Do you also purchase industrial spare parts?

Yes. You can offer us automation and drive components for purchase. Please provide complete type numbers, quantities, condition details and photographs where possible.

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