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Safety Switch ES21-MB16S4 2 Positive Action N C Contacts Rotary Release Type SICK

BRAND: SICK
SKU: 6082623
$185.90 List price: $233.70
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The Safety Switch ES21-MB16S4 features 2 positive action normally closed (N C) contacts and a secure rotary release type
Technical Specifications
  • Positive action N/C contacts: 2
  • N/O contacts: 0
  • Actuation directions: 1
  • Release type: Rotary release
  • B10d parameter: 2.5 x 10^5 switching cycles
  • Safe series connection: With Flexi Loop (with diagnostics)
  • Connection type: M12 male connector, 4-pin, A-coding
  • Switching principle: Slow action switching element
  • Usage category: AC-15/DC-13 (EN 60947-5-1)
  • Rated operating current (voltage): 4 A (35 V AC), 2 A (35 V DC)
  • Rated insulation voltage Ui: 250 V
  • Electrical life: 50,000 switching cycles
  • Mechanical life: 50,000 switching cycles
  • Housing material: Plastic
  • Mounting version: Panel mount
  • Enclosure rating: IP65, IP67 (IEC 60529)
  • Ambient operating temperature: –25 °C to +70 °C
  • Storage temperature: –40 °C to +80 °C
  • Dimensions (H x L x W): 30mm x 50mm x 30mm
  • Weight: 0.1 kg
Key Features
  • 2 positive action normally closed (N/C) contacts
  • Rotary release type for secure actuation
  • Safe series connection with Flexi Loop including diagnostics
  • Slow action switching element for reliable operation
  • Panel mount version with plastic housing
  • Rated operating current: 4 A (35 V AC), 2 A (35 V DC)
  • Electrical life of 50,000 switching cycles
  • Mechanical life of 50,000 switching cycles
  • Enclosure rating IP65 and IP67 for dust and water protection
  • Operating temperature range from -25°C to +70°C
Professional Installation Requirements
  • Installation should be performed by a qualified electrician or technician familiar with safety switch systems to ensure compliance with safety standards.
Applications
  • Industrial safety systems requiring reliable positive action N/C contacts
  • Panel mount safety switch applications
  • Use in environments requiring IP65 and IP67 rated protection
Standards & Compliance
  • AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
  • Durable design reduces replacement frequency and waste
  • Compliant with China-RoHS for reduced hazardous substances
Warranty Information

Standard manufacturer warranty applies. Please refer to SICK's official warranty policy for details.

Available Now

The SICK ES21-MB16S4 safety switch is available for immediate purchase, ideal for industrial safety and control panel applications.

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