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Festo
8156125
Stepper motor EMMB-ST-42-S-S
The Festo part number 8156125 is an industrial component featuring an IM B5, IM V1, and IM V3 motor type conforming to IEC 60034, with an S1 rating class and thermal class B according to EN 60034-1. This unit operates within an ambient temperature range of 0 °C to 40 °C—extendable up to 80 °C with a derating of -2%/°C—at installation heights up to 4000 m and utilizes a 14-pin hybrid plug with a connection pattern L5. It provides an IP20 degree of protection with IP40 at the engine shaft, an interface code 42A for the motor out, and incorporates RoHS-compliant materials with a corrosion resistance class of 0. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
- Manufacturer
- Festo
- Part number
- 8156125
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 8156125.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Ambient temperature
- 0 °C...40 °C
- Note on ambient temperature
- up to 80°C with derating -2%/°C
- Max. installation height
- 4000 m
- Information on max. installation height
- with 1,000 m and longer only with derating of -1.0% per 100 m
- Storage temperature
- -20 °C...70 °C
- Relative air humidity
- 0 - 90% | Non-condensating
- Conforms to standard
- IEC 60034
- Thermal class according to EN 60034-1
- B
- Max. winding temperature
- 130 °C
- Rating class according to EN 60034-1
- S1
- Motor type as per EN 60034-7
- IM B5 | IM V1 | IM V3
- Mounting position
- Any
- Degree of protection
- IP20
- Note on degree of protection
- IP40 engine shaft
- Interface code, motor out
- 42A
- Electrical connection 1, connection type
- Hybrid plug
- Electrical connection 1, connection technology
- Connection pattern L5
- Electrical connection 1, number of pins/wires
- 14
- Note on materials
- RoHS compliant
- Corrosion resistance class (CRC)
- 0 - No corrosion stress
- LABS (PWIS) conformity
- VDMA24364 Zone III
- Vibration resistance
- Transport application test with severity level 2 as per FN 942017-4 and | EN 60068-2-6
- Shock resistance
- Shock test with severity level 2 as per FN 942017-5 and EN 60068-2-27
- Certication
- RCM compliance mark | c UL us - recognized (OL)
- CE marking (see declaration of conformity)
- As per EU EMC directive | As per EU RoHS directive
- UKCA marking (see declaration of conformity)
- To UK instructions for EMC | To UK RoHS instructions
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Technical verification
Our sourcing response is prepared against Festo 8156125. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.