SIEMENS 3SB3921-OAK protective collar accessory

Environmental protection for emergency stop buttons
Industrial control panels
Machine safety systems
Applications requiring visual alert and physical shielding

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SIEMENS 3SB3921-0AK is a protective collar accessory from Siemens' SIRIUS 3SB3 series, designed for mushroom-type emergency stop buttons. It is suitable for front panel mounting and comes in yellow, providing both visual emphasis and physical protection.

⚠️ Note: This product has been discontinued. Recommended replacement: SIRIUS ACT 3SU1900-0DY30-0AA0

Feature	Value / Description
Product Type	Protective collar (accessory)
Compatible Button Type	Mushroom-type emergency stop buttons
Mounting Type	Front panel mounting
Color	Yellow
Material	Plastic
Mounting Diameter	22 mm
Operating Temperature	-25 °C to +70 °C
Protection Class	IP65 / IP67 (with button)
Net Weight	0.065 kg
Country of Origin	Germany
HS Code	85389099
RoHS Compliance	Yes (since 01.07.2006)
REACH Disclosure	No SVHC content

Data Sheet