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SIEMENS

3SU1851-0NB00-2AC2

Siemens 3SU1851-0NB00-2AC2 Emergency Stop Pushbutton Enclosure, Metal, 22 mm, Yellow Original Brand New

Original price was: $182.60.Current price is: $73.95.

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Condition
Original brand new
Warranty
12 months
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PRODUCT DATA

Specifications

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Listed product specifications
SKU / model3SU1851-0NB00-2AC2
BrandSIEMENS
product brand nameSIRIUS ACT
product designationEnclosures
product type designation3SU1
manufacturer's article number-
● of supplied contact moduleA1 = 3SU1400-2AA10-1CA0, A2 = 3SU1400-2AA10-1CA0
● of supplied contact module at the command point A 13SU1400-2AA10-1CA0
● of supplied contact module at the command point A 23SU1400-2AA10-1CA0
● of the supplied holderA = 3SU1550-0AA10-0AA0
● of the supplied holder at the command point A3SU1550-0AA10-0AA0
● of the supplied actuatorA = 3SU1050-1HB20-0AA0
● of the supplied actuator at the command point A3SU1050-1HB20-0AA0
● of supplied empty enclosure3SU1851-0AA00-0AC2
design of the housingwith protective collar
shape of the enclosure frontSquare
material of the enclosuremetal
number of command points1
product component-
● EMERGENCY STOP deviceYes
● protective collarNo
color of the enclosure top partyellow
delivery state-
● as a kitNo
● pre-wired on strip terminalNo
fastening method of the enclosureVertical
design of the actuating elementEmergency stop mushroom pushbutton
suitability for use EMERGENCY OFF switchYes
product feature lockoutNo
product extension optional light sourceNo
color of the actuating elementred
material of the actuating elementplastic
shape of the actuating elementround
number of contact modules2
type of unlocking deviceA = rotate-to-unlatch mechanism
product component front ringNo
design of the front ringStandard
material of the holderPlastic
number of LED modules0
product function-
● positive openingYes
● EMERGENCY OFF functionYes
● EMERGENCY STOP functionYes
protection class IPIP66, IP67, IP69(IP69K)
degree of protection NEMA rating1, 2, 3, 3R, 4, 4X, 12, 13
shock resistance-
● acc. to IEC 60068-2-27Sinusoidal half-wave 50g / 11 ms
vibration resistance-
● acc. to IEC 60068-2-610 ... 500 Hz: 5g
reference code acc. to IEC 81346-2S
continuous current of the C characteristic MCB10 A; for a short-circuit current smaller than 400 A
continuous current of the quick DIAZED fuse link10 A
continuous current of the DIAZED fuse link gG10 A
operating voltage-
● at AC-
— at 50 Hz rated value5 ... 500 V
— at 60 Hz rated value5 ... 500 V
● at DC rated value5 ... 500 V
design of the interface for communicationwithout
design of the contact of auxiliary contactsSilver alloy
number of NC contacts for auxiliary contacts2
number of NO contacts for auxiliary contacts0
type of electrical connection of modules and accessoriesScrew-type terminal
type of electrical connection on enclosureCable routing above and below, both 1 x M20
tightening torque of the screws in the bracket1 ... 1.2 N·m
tightening torque of fixing screws in the enclosure cover1.5 ... 1.7 N·m
tightening torque with screw-type terminals0.8 ... 0.9 N·m
ambient temperature-
● during operation-25 ... +70 °C
● during storage-40 ... +80 °C
environmental category during operation acc. to IEC 607213M6, 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 accessoriesFloor mounting
shape of the installation openinground
number of labels0
number of inscription plates0
last modified:10/1/2021
Weight for shipping0.720 kg
Dimensions for shipping95.00 × 101.00 × 131.00 mm

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Description

Overview

The Siemens 3SU1851-0NB00-2AC2 is a high-performance emergency stop pushbutton enclosure designed for maximum safety in industrial control applications. Built with a durable metal housing and a bright yellow top, it ensures maximum visibility and long-lasting reliability. The integrated 40 mm red mushroom Emergency Stop button with a rotate-to-unlatch mechanism delivers fast response and intuitive operation during critical moments.

Engineered for industrial environments, the device features 1 NC + 1 NC contacts, screw terminals, a protective collar, and M20 entries on the top and bottom. Ideal for floor mounting and harsh conditions, this Siemens enclosure ensures safe and efficient machine control.

Benefit

  • High Safety Assurance – Large, easy-to-operate 40 mm Emergency Stop mushroom pushbutton.

  • Long-Lasting Durability – Heavy-duty metal enclosure designed for industrial use.

  • Improved Visibility – Yellow top section ensures the emergency stop is easy to locate.

  • Fast & Reliable Operation – Rotate-to-unlatch mechanism prevents accidental resets.

  • Flexible Installation – 1×M20 entry at both top and bottom for simplified wiring.

  • Enhanced Protection – Protective collar prevents accidental activation.

Functional Features

  • Control Point: 1 (metal)

  • Pushbutton Type: Emergency Stop, 40 mm mushroom, red

  • Release Method: Rotate-to-unlatch

  • Contacts: 1 NC + 1 NC

  • Terminal Type: Screw terminal

  • Mounting Style: Floor mounting

  • Enclosure Material: Robust metal

  • Entry Points: 1xM20 on top & 1xM20 on bottom

  • Color: Yellow enclosure top with red E-Stop

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