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Emergency Stop Switch ES21-SA11H1 | Illuminable Pushbutton | Obstruction Protection | Rotary Release | by SICK
The Emergency Stop Switch ES21-SA11H1 features an illuminable pushbutton and positive action N/C contacts, making it ideal for industrial machinery emergency stop control. Designed for surface mount installations, this switch ensures safety with obstruction protection and a long operational life of up to 100,000 hours, perfect for manufacturing environments and safety control systems.
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Technical Specifications
- Positive action N/C contacts: 2
- N/O contacts: 1
- Actuation directions: 1
- Emergency stop pushbutton: Illuminable
- Obstruction protection: Yes
- Release type: Rotary release
- B10d parameter: 2.5 x 10^5 switching cycles
- Safe series connection: None, only individual wiring with diagnostics
- Connection type: Cable gland, 2 x M20
- Conductor cross section: ≤ 2.5 mm²
- Contact: Screw connection
- Protection class: II (EN 50178)
- Switching principle: Slow action switching element
- Usage category: AC-15/DC-13 (EN 60947-5-1)
- Rated operating current: 3 A (250 V AC), 2 A (24 V DC)
- Rated insulation voltage Ui: 600 V
- Switching voltage: ≥ 5 V DC
- Switching current: ≥ 1 mA
- Supply voltage Vs: 24 V DC (12 V DC ... 30 V DC)
- Power consumption: 8 mA ... 44 mA
- Life time: 70,000 h to 100,000 h
- Housing material: Plastic
- Mounting version: Surface mount
- Enclosure rating: IP54 (IEC 60529)
- Ambient operating temperature: –25 °C to +55 °C
- Storage temperature: –25 °C to +85 °C
- Dimensions (H x L x W): 70mm x 70mm x 70mm
- Weight: 0.23 kg
Key Features
- Positive action N/C contacts: 2
- N/O contacts: 1
- Illuminable emergency stop pushbutton
- Obstruction protection
- Rotary release type
- Surface mount version
- Protection class II (EN 50178)
- Slow action switching element
Professional Installation Requirements
- Installation should be performed by a qualified electrician to ensure compliance with electrical safety standards and proper integration into safety circuits.
Applications
- Industrial machinery emergency stop control
- Safety control systems requiring positive action contacts
- Surface mount installations in manufacturing environments
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Long lifetime of up to 100,000 hours reduces waste and replacement frequency
- Complies with China-RoHS for restricted hazardous substances
Warranty Information
Standard manufacturer warranty applies. Please refer to SICK's official warranty policy for details.
Available Now
The SICK ES21-SA11H1 Emergency Stop Pushbutton Switch is available for immediate purchase, ideal for industrial safety and emergency stop applications.
