Siemens Circuit breaker, 250 breaking capacity, 4-pole, 175 - 250A

Product Overview

Enclosure for command devices, 22 mm, round, enclosure material plastic, enclosure top part yellow, 1 control point plastic, control point in center, EMERGENCY STOP palm pushbutton, red, positive latching, pull-to-unlatch mechanism, 1 NC, 1 NO, screw terminal, floor mounting.

Article Number: 3SU1801-2NG00-2AA2

Key Features:

Safety Function: Complete emergency stop assembly with red palm pushbutton design
Enclosure: 22mm round plastic enclosure with high-visibility yellow top part
Palm Design: Large surface area palm pushbutton for emergency activation
Operation: Pull-to-unlatch mechanism for secure emergency stop activation
Dual Contacts: 1 NC + 1 NO contact configuration for versatile safety circuits
Connection: Screw terminal for secure electrical connections
Mounting: Floor mounting design for ground-level emergency access
Safety Compliant: Designed for emergency stop applications in accordance with safety standards

Technical Specifications:

Enclosure Size: 22 mm diameter, round
Pushbutton Type: Palm pushbutton, red
Operation Type: Pull-to-unlatch, positive latching
Contact Configuration: 1 NC + 1 NO (normally closed + normally open)
Terminal Type: Screw terminal
Enclosure Color: Yellow top part
Button Color: Red (emergency stop standard)
Control Point Location: Center positioned
Net Weight: 0.396 kg
Packaging Dimensions: 95.00 x 102.00 x 132.00 mm
Quantity Unit: 1 Piece
EAN: 4011209970328
UPC: 804766476037
Country of Origin: China

Product Benefits:

Palm-Activated Design: Large surface area enables easy activation with palm, hand, or body contact in emergency situations
High Visibility: Red palm button on yellow enclosure ensures maximum visibility for emergency identification
Dual Contact Configuration: NC/NO contacts provide flexibility for complex safety circuits and system integration
Pull-to-Unlatch: Safe reset mechanism prevents accidental restoration and ensures deliberate operator action
Positive Latching: Maintains activated state until manually reset for reliable emergency stop function
Floor Mounting: Optimized for ground-level emergency stop applications and pedestrian access
Center Control Point: Centrally positioned for optimal activation ergonomics and visibility
Robust Construction: Industrial-grade plastic materials ensure reliable performance in critical safety applications
Versatile Wiring: Dual contact types accommodate various safety circuit requirements
Cost-Effective Safety: Reliable emergency stop solution for essential safety compliance

Applications: Essential safety device for floor-mounted emergency stop applications in industrial machinery, manufacturing equipment, conveyor systems, and automation installations where palm-activated emergency shutdown is required. Perfect for applications where operators may need to quickly activate emergency stops with their palm or body, such as assembly lines, packaging equipment, material handling systems, and areas where hands-free emergency activation is beneficial.

Safety Features:

Emergency Stop Function: Immediate circuit control for equipment shutdown
Palm Activation: Large surface area for easy emergency contact
Visual Identification: Red button color universally recognized for emergency stop
Positive Latching: Maintains emergency state until manual reset
Secure Reset: Pull-to-unlatch mechanism requires deliberate action to restore operation

Electrical Specifications:

Contact Types: 1 NC (normally closed) + 1 NO (normally open)
Operation: Push-to-stop, pull-to-unlatch
Terminal Configuration: Screw type for secure emergency circuit connections
Contact Flexibility: Dual contacts enable complex safety circuit designs

Installation Features:

Floor Mounting: Designed for base-level safety installations
Central Control Point: Optimized positioning for emergency access
Secure Connections: Screw terminals for reliable safety circuit wiring

Compliance & Certifications:

RoHS Compliant: Since 01.10.2014
WEEE Directive: Take-back obligation applies
Export Control: AL: N / ECCN: N
Product Class: A - Standard stock item

REACH Regulation Notice: Currently no information available on SVHC (Substances of Very High Concern) from the supply chain. Products are regularly compared with candidate list requirements in accordance with REACH regulation. Information will be updated as new findings become available.

Download existing graphical data for this product:

System Manual - SIRIUS ACT 3SU1 Pushbuttons and Signaling Devices
Technical Documentation
Product Datasheet
Additional Product Information