SICK ES21 Series Emergency Stop Push Button, Surface Mount, 1 NO/2 NC, IP54
- RS Stock No.:
- 285-1303
- Mfr. Part No.:
- ES21-SA11H1 / 6036751
- Brand:
- SICK
Subtotal (1 unit)*
£77.40
(exc. VAT)
£92.88
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 10 December 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £77.40 |
*price indicative
- RS Stock No.:
- 285-1303
- Mfr. Part No.:
- ES21-SA11H1 / 6036751
- Brand:
- SICK
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | SICK | |
| Mount Type | Surface Mount | |
| Product Type | Emergency Stop Push Button | |
| Contact Configuration | 1 NO/2 NC | |
| Housing Material | Plastic | |
| Series | ES21 | |
| Illuminated | No | |
| IP Rating | IP54 | |
| Colour | Red | |
| Terminal Type | Screw | |
| Contact AC Voltage | 250V ac | |
| Contact Current | 3A | |
| Contact DC Voltage | 24V dc | |
| Depth | 31.5mm | |
| Switch Configuration | Slow Action | |
| Standards/Approvals | China RoHS, cULus, EN, EU DoC, IEC, TPC, UKCA | |
| Hazardous Area Certification | No | |
| Length | 31.5mm | |
| Width | 41.5mm | |
| Push Button Material | Plastic | |
| Select all | ||
|---|---|---|
Brand SICK | ||
Mount Type Surface Mount | ||
Product Type Emergency Stop Push Button | ||
Contact Configuration 1 NO/2 NC | ||
Housing Material Plastic | ||
Series ES21 | ||
Illuminated No | ||
IP Rating IP54 | ||
Colour Red | ||
Terminal Type Screw | ||
Contact AC Voltage 250V ac | ||
Contact Current 3A | ||
Contact DC Voltage 24V dc | ||
Depth 31.5mm | ||
Switch Configuration Slow Action | ||
Standards/Approvals China RoHS, cULus, EN, EU DoC, IEC, TPC, UKCA | ||
Hazardous Area Certification No | ||
Length 31.5mm | ||
Width 41.5mm | ||
Push Button Material Plastic | ||
- COO (Country of Origin):
- DE
SICK ES21 Series Emergency Stop Push Button, 3A Contact Current, 24V DC Supply Voltage - ES21-SA11H1 / 6036751
This emergency stop push button provides a compact, surface-mounted safety command for industrial installations. Designed for manual shutdowns, it combines a plastic housing with slow-action switching and screw terminals for individual wiring diagnostics. The unit is rated for use across common control voltages and is suited to environments requiring ingress protection.
Features and Benefits:
• 3A contact current provides safe interruption capability
• 250V AC switching supports mains control circuits
• 24V DC supply enables low-voltage control illumination
• IP54 enclosure protects against dust ingress and splashes
• Two NC and one NO contacts deliver positive-action switching
• 250V AC switching supports mains control circuits
• 24V DC supply enables low-voltage control illumination
• IP54 enclosure protects against dust ingress and splashes
• Two NC and one NO contacts deliver positive-action switching
Applications
• Suitable for machine stop circuits in manufacturing plants
• Ideal for safety stations on conveyor systems
• Used with control panels requiring surface mounting
• Can be used for emergency shutdowns in logistics hubs
• Ideal for safety stations on conveyor systems
• Used with control panels requiring surface mounting
• Can be used for emergency shutdowns in logistics hubs
What connection method is used for field wiring?
The device uses screw terminals with cable glands for two M20 entries and supports conductor cross-sections up to 2.5mm².
How does the switching behaviour affect safety response?
It employs a slow-action switching element with positive-action N/C contacts for defined actuation profiles and a B10d life of 2.5 x 10⁵ cycles.
What are the operating temperature limits for storage and use?
The operating range is -25°C to +55°C and storage is -25°C to +85°C.
Is the push button illuminated and what are its illumination parameters?
It is a non-illuminated emergency stop push button but the illumination electronics are specified for 24V DC supply at 8mA to 44mA where applicable.
What approvals and declarations accompany the unit?
It holds cULus, EN and IEC-related certificates, UKCA and EU declarations of conformity, and China RoHS documentation.
Related links
- SICK ES21 Series Rotary release Illuminated Emergency Stop Push Button 1 NO/2 NC, IP54
- SICK ES21 Series Illuminated Emergency Stop Push Button 1 NO/2 NC, IP54
- SICK ES21 Series Emergency Stop Push Button 2 NC, IP65
- SICK ES21 Series Rotary release Illuminated Emergency Stop Push Button, IP54
- SICK ES21 Series Rotary release Illuminated Emergency Stop Push Button IP54
- SICK ES21 Series Emergency Stop Push Button 2 NC
- SICK ES21 Series Emergency Stop Push Button 2 NC, IP65
- SICK ES21 Series Emergency Stop Push Button 1 NO/2 NC, IP65