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Siemens 3SB38 01-0EF3 Standard Operator Enclosure and Emergency Stop Mushroom Pushbutton, Molded Plastic Enclosure, 1 Pilot Device, 40mm Head, Positive Latching, Rotate To Unlatch, Protective Collar, 2 NC Contact Block Function

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Specifications for this item
Brand Name Siemens
Contact Type 2 NC
EAN 0754554962061
Number of Items 1
Part Number 3SB38 01-0EF3
Specification Met IP
UNSPSC Code 39122216
UPC 754554962061

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Product Features

  • Yellow molded plastic enclosure with Siemens 3SB3 series pushbutton unit for emergency stop operation
  • 2 NC contact with push-to-lock and twist-to-release for maintained operation
  • Up to 400V, up to 10 amp power input
  • Electrical conduit mounting holes at top and bottom of enclosure
  • Provides IP65 protection against dust and liquids

Product Description

This Siemens 3SB38 01-0EF3 plastic enclosure has a pushbutton actuator, holder, and contact block, and is used for emergency stop operation. A red mushroom-shaped pushbutton actuates the two normally closed (NC) contacts and is rated at up to 400V and up to 10 amp. The 40 mm diameter pushbutton pushes to lock and twists to unlock for maintained on/off operation. The yellow enclosure is made of plastic for weather and corrosion resistance and has a protective collar on the face of the enclosure to help prevent unintended operation. It has M20 threaded electrical conduit mounting holes at the top and bottom of the enclosure for electrical wiring. The unit has an operating temperature range of -25 to +70 degrees C and meets the Ingress Protection (IP) 65 standard for protection against dust and liquids. This enclosure and pushbutton unit conforms to the European Committee for Electrotechnical Standardization (CENELEC) EN 60947-5-1 standard for control circuit devices and is suitable for use in applications such as manufacturing process control systems.

Enclosure typeYellow molded plastic enclosure, protective collar, M20 conduit thread
Pushbutton type40 mm mushroom-shaped red pushbutton, holder, and contact block
Power inputUp to 400V, up to 10 amp
Contact type2 NC
Wiring typeScrew-type terminals
Operating temperature range-25 to +70 degrees C
Degree of protectionIP65
Specifications metEN 60947-5-1

Pushbutton switches make or break electrical connections as part of a system that controls a process, such as a manufacturing line. Indicator lights with labels or color-coded caps are used to display the current state of a process, such as "completed." The pushbutton unit is composed of a pushbutton actuator for making or breaking electrical connections, a holder for securing the actuator to a control panel and for housing a light, and one or more contact blocks for connection to electrical wiring. Contacts within a contact block can be normally open (NO) or normally closed (NC), so that pressing the button starts or stops a process. Holders accommodate a range of control panel thicknesses and may include lamps to illuminate the button. Pushbutton actuator head types include mushroom, flat-surface, raised-surface, and key-operated, and may be illuminated, color-coded, and labeled. According to the requirements of an application, actuators may operate only as long as the button is held or they may lock into position when pushed and unlock when pulled or twisted. Pushbuttons and indicator lights are used in applications such as manufacturing process controls and as emergency shutoffs in industrial workplaces.

Siemens manufactures electronic products for building automation, industrial drives, lighting, energy generation, medical equipment, and rail transportation. The company, founded in 1847 and headquartered in Munich, Germany, meets International Standards Organization (ISO) standards 14001, 9001 and TS 16949.

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