
Siemens
Siemens Limit 3SE2120-0GW
['Home', 'Switches', 'Position Switches', 'Siemens 3SE2120-0GW'] Need Siemens 3SE2120-0GW? Limit for Industrial positio…
Specifications
| Brand | Siemens |
|---|---|
| Model Number | 3SE2120-0GW |
| Official Product Name | 3SE21 Position Switch |
| Applicable System | Industrial position and safety sensing |
| Product Type | Limit / Position Switch |
| Equivalent Standard | Contact supplier for cross-reference and alternative models |
| Product Status | Active |
| Lifecycle note | Available |
| Actuator | Roller lever |
| Contacts | NO / NC |
| Enclosure | Metal |
| Protection rating | IP67 |
| Dimensions (HxWxD) | 131 x 40 x 39 mm |
| Voltage rating | Contact supplier for exact specifications |
| Weight | Contact supplier for exact specifications |
| Switch type | Position / limit switch |
Product Description
['Home', 'Switches', 'Position Switches', 'Siemens 3SE2120-0GW'] Need Siemens 3SE2120-0GW? Limit for Industrial position and safety sensing. Supplied with full traceability and documentation. Request a quote and current... Price & Availability Classified as a limit position switch, it is positioned as a direct replacement and service part for existing installations. It is intended for use within Industrial position and safety sensing, where dependable operation and a precise fit are essential to keeping the plant running. Listed as Active, it is offered as a maintained and verified spare that supports the continued operation of the installed base. Key technical specifications include: The Switch type is Position / limit switch. Its Actuator is rated at Roller lever. For reference, the Contacts is NO / NC. The Enclosure is Metal. Its Protection rating is rated at IP67. For reference, the Dimensions (HxWxD) is 131 x 40 x 39 mm. The Voltage rating is Contact supplier for exact specifications. Its Weight is rated at Contact supplier for exact specifications. Notable features of this unit: Metal enclosure for harsh environments. Roller-lever actuator for sliding contact. IP67 protection rating. Typical applications include Machine end-of-travel detection, Conveyor position sensing, Safety interlock and guard monitoring. It is compatible with or cross-references Siemens 3SE2 position switch accessories, Industrial safety and control relays, Machine guarding systems. The 3SE21 family covers position switches with various actuators (lever, plunger, roller). The -0GW denotes the roller-lever metal version; other suffixes define actuator and contact configuration. Within industrial automation and process-control environments, components of this type are relied upon to keep critical equipment operating safely and efficiently. They are typically specified where uptime, repeatability and a predictable maintenance cycle matter more than upfront cost. A limit position switch such as this one forms part of a larger machine or system, so correct identification and fitment directly affect the performance and safety of the whole installation. Siemens parts are widely used across power generation, manufacturing, oil and gas, water and process industries, where engineering teams standardise on proven series to simplify spares planning. When selecting a replacement, confirm the exact model designation and verify that the mechanical and electrical interface matches the unit currently installed. Cross-checking the order code, mounting style and connection type against the existing device helps avoid compatibility issues and unplanned downtime during a maintenance window. Where several variants exist, the suffix often defines voltage, range or firmware, so it should be matched precisely rather than approximated. This item is offered from our active stock of current and discontinued industrial parts. Each listing is verified against the manufacturer designation before shipment so you receive the correct part for your application. Availability and lead time vary by item; our team can confirm the fastest option for your required quantity and provide a formal quotation on request. Common questions: Regarding "What actuator does it use": It uses a roller-lever actuator. Regarding "What contacts are provided": NO and NC contacts. Please contact us to confirm current pricing, availability and delivery for your required quantity; volume and project pricing are available on request. The Siemens 3SE2120-0GW is a limit position switch. Basic Product Information Roller-lever actuator for sliding contact NO/NC contact combination IP67 protection rating Metal enclosure for harsh environments Technical Specifications Version & Model Difference The 3SE21 family covers position switches with various actuators (lever, plunger, roller). The -0GW denotes the roller-lever metal version; other suffixes define actuator and contact configuration. Application Scenarios Machine end-of-travel detection Conveyor position sensing Safety interlock and guard monitoring What contacts are provided? What is the protection rating? Can I get a cross-reference? Contact supplier for cross-reference and alternative models. What actuator does it use? It uses a roller-lever actuator. Siemens 6ES7214-1BH50-0XB0 PLC CPU (Type-1) Siemens 6ES7231-4HF50-0XB0 Analog Input Module Siemens 6ES7231-5PD50-0XB0 Analog RTD Module Siemens 6ES7231-5QF50-0XB0 Analog TC Module (S7-1200) Siemens 6ES7233-4HF50-0XB0 Analog IO Module (SM 1234) Siemens 6ES7216-2BD23-0XB0 PLC CPU (Type-2) Siemens 6ES7223-1BH22-0XA0 PLC IO Module (Type-1) Siemens 6ES7223-5PH50-0XB0 PLC IO Module (Type-2)
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