Siemens 3SU1851-0NA00-2AA2 Emergency Stop Enclosure, 1-Point, 40mm Mushroom, Rotate-to-Unlatch Original Brand New
$66.55
Industrial metal emergency stop enclosure with 22 mm round control point, yellow top, 40 mm red mushroom pushbutton, rotate-to-unlatch reset, 1 NC contact, screw terminals, and M20 cable entries.
Availability: In stock
Overview
The Siemens 3SU1851-0NA00-2AA2 is a robust, industrial-grade emergency stop (E-Stop) command device enclosure built for high-reliability machine and plant safety. Designed with a durable metal housing, a yellow enclosure top, and a prominent 40 mm red mushroom pushbutton, this unit ensures fast recognition and quick emergency activation. With a rotate-to-unlatch reset mechanism, it provides enhanced operational security and user-friendly functionality in demanding industrial environments.
This enclosure is ideal for machinery, automation systems, and safety installations requiring a dedicated, clearly visible emergency stop point.
Benefit
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High durability thanks to full metal enclosure for harsh industrial applications
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Enhanced visibility with yellow top section and large red mushroom actuator
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User-friendly safety via rotate-to-unlatch mechanism for secure reset
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Reliable operation with 1 NC contact and screw terminal for stable connection
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Flexible mounting with floor installation design and M20 cable entries (top & bottom)
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Compact and ergonomic 22 mm round control point
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Fits Siemens SIRIUS ACT command and signaling device systems
Features / Functionality
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Product Type: Emergency Stop Enclosure with control device
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Manufacturer: Siemens
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Series: SIRIUS ACT
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Part Number: 3SU1851-0NA00-2AA2
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Enclosure Type: Round, metal
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Enclosure Top: Yellow
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Control Point: 22 mm, center-mounted
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Pushbutton Type: Red mushroom head, 40 mm diameter
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Activation Method: Push-to-stop
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Reset Mechanism: Rotate-to-unlatch
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Contacts: 1 NC (Normally Closed)
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Terminal Type: Screw terminal
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Mounting: Floor mounting
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Cable Entries: 1 × M20 top, 1 × M20 bottom
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| Weight | 0.613 kg |
|---|---|
| Dimensions | 95.00 × 101.00 × 134.00 mm |
| Brand | SIEMENS |
| product brand name | SIRIUS ACT |
| product designation | Enclosures |
| product type designation | 3SU1 |
| manufacturer's article number | – |
| ● of supplied contact module | A1 = 3SU1400-2AA10-1CA0 |
| ● of supplied contact module at the command point A 1 | 3SU1400-2AA10-1CA0 |
| ● of the supplied holder | A = 3SU1550-0AA10-0AA0 |
| ● of the supplied holder at the command point A | 3SU1550-0AA10-0AA0 |
| ● of the supplied actuator | A = 3SU1050-1HB20-0AA0 |
| ● of the supplied actuator at the command point A | 3SU1050-1HB20-0AA0 |
| ● of supplied empty enclosure | 3SU1851-0AA00-0AA2 |
| design of the housing | Command point in center |
| shape of the enclosure front | Square |
| material of the enclosure | metal |
| number of command points | 1 |
| product component | – |
| ● EMERGENCY STOP device | Yes |
| ● protective collar | No |
| color of the enclosure top part | yellow |
| delivery state | – |
| ● as a kit | No |
| ● pre-wired on strip terminal | No |
| fastening method of the enclosure | Vertical |
| design of the actuating element | Emergency stop mushroom pushbutton |
| suitability for use EMERGENCY OFF switch | Yes |
| product feature lockout | No |
| product extension optional light source | No |
| color of the actuating element | red |
| material of the actuating element | plastic |
| shape of the actuating element | round |
| number of contact modules | 1 |
| type of unlocking device | A = rotate-to-unlatch mechanism |
| product component front ring | No |
| design of the front ring | Standard |
| material of the holder | Plastic |
| number of LED modules | 0 |
| product function | – |
| ● positive opening | Yes |
| ● EMERGENCY OFF function | Yes |
| ● EMERGENCY STOP function | Yes |
| protection class IP | IP66, IP67, IP69(IP69K) |
| degree of protection NEMA rating | 1, 2, 3, 3R, 4, 4X, 12, 13 |
| shock resistance | – |
| ● acc. to IEC 60068-2-27 | Sinusoidal half-wave 50g / 11 ms |
| vibration resistance | – |
| ● acc. to IEC 60068-2-6 | 10 … 500 Hz: 5g |
| reference code acc. to IEC 81346-2 | S |
| continuous current of the C characteristic MCB | 10 A; for a short-circuit current smaller than 400 A |
| continuous current of the quick DIAZED fuse link | 10 A |
| continuous current of the DIAZED fuse link gG | 10 A |
| operating voltage | – |
| ● at AC | – |
| — at 50 Hz rated value | 5 … 500 V |
| — at 60 Hz rated value | 5 … 500 V |
| ● at DC rated value | 5 … 500 V |
| design of the interface for communication | without |
| design of the contact of auxiliary contacts | Silver alloy |
| number of NC contacts for auxiliary contacts | 1 |
| number of NO contacts for auxiliary contacts | 0 |
| type of electrical connection of modules and accessories | Screw-type terminal |
| type of electrical connection on enclosure | Cable routing above and below, both 1 x M20 |
| tightening torque of the screws in the bracket | 1 … 1.2 N·m |
| tightening torque of fixing screws in the enclosure cover | 1.5 … 1.7 N·m |
| tightening torque with screw-type terminals | 0.8 … 0.9 N·m |
| ambient temperature | – |
| ● during operation | -25 … +70 °C |
| ● during storage | -40 … +80 °C |
| environmental category during operation acc. to IEC 60721 | 3M6, 3S2, 3B2, 3C3, 3K6 (with relative air humidity of 10 … 95 %, no condensation in operation permitted for all devices behind front panel) |
| fastening method of modules and accessories | Floor mounting |
| shape of the installation opening | round |
| number of labels | 0 |
| number of inscription plates | 0 |
| last modified: | 10/1/2021 |
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