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)*

Kr. 944,91

(exc. VAT)

Kr. 1 181,14

(inc. VAT)

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Ready to ship from 11 December 2026

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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
	Illuminated	No
	Series	ES21
	IP Rating	IP54
	Colour	Red
	Terminal Type	Screw
	Contact DC Voltage	24V dc
	Contact Current	3A
	Contact AC Voltage	250V ac
	Depth	31.5mm
	Switch Configuration	Slow Action
	Standards/Approvals	China RoHS, cULus, EN, EU DoC, IEC, TPC, UKCA
	Length	31.5mm
	Hazardous Area Certification	No
	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
	Illuminated No
	Series ES21
	IP Rating IP54
	Colour Red
	Terminal Type Screw
	Contact DC Voltage 24V dc
	Contact Current 3A
	Contact AC Voltage 250V ac
	Depth 31.5mm
	Switch Configuration Slow Action
	Standards/Approvals China RoHS, cULus, EN, EU DoC, IEC, TPC, UKCA
	Length 31.5mm
	Hazardous Area Certification No
	Width 41.5mm
	Push Button Material Plastic

Datasheet - ES21-SA11H1

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

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

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.