JUNG 531 U Momentary Switch Insert for LS 990, AS 500, CD 500, LS design, LS plus, FD design, A 500, A plus, A creation, CD plus, SL 500

Momentary switch insert engineered for flush-mounted installation, delivering reliable push-button control across JUNG's extensive range of switch ranges. The 531 U provides a 1-pole normally open contact rated for 250 V AC and 10 A, making it a versatile building block for lighting and appliance circuits in residential and commercial environments.

Advantages

This insert combines robust thermoplastic construction with halogen-free materials, ensuring durability and environmental responsibility. Screw terminals accept rigid conductors from 1.5 to 2.5 mm², simplifying installation. Its compatibility with multiple JUNG design lines—LS 990, AS 500, CD 500, LS design, LS plus, FD design, A 500, A plus, A creation, CD plus, and SL 500—offers exceptional flexibility for matching any interior style. The IP20 rating suits indoor use, and the operating temperature range of -5 to +40 °C covers typical building conditions.

Suitable for

• Controlling lighting circuits with momentary switching (e.g., with impulse relays or automation systems)
• Use as a bell push or signal transmitter in residential and commercial buildings
• Integration into JUNG switch ranges for a uniform aesthetic across a project
• Flush-mounted installations in standard wall boxes

Key specifications

• Product type: Momentary switch insert
• Switch function: Push-button (normally open contact)
• Number of poles: 1
• Rated voltage: 250 V AC
• Rated current: 10 A
• Connection type: Screw terminals (1.5–2.5 mm² rigid)
• Mounting type: Flush-mounted
• Material: Thermoplastic, halogen-free
• Protection class: IP20
• Operating temperature: -5 to +40 °C
• Compatible series: LS 990, AS 500, CD 500, LS design, LS plus, FD design, A 500, A plus, A creation, CD plus, SL 500

Recommendations

For a complete switch, pair the 531 U with a matching rocker from the desired JUNG range. Ensure the connected load does not exceed 10 A and that the installation is carried out by a qualified electrician. The insert is halogen-free, contributing to healthier indoor air quality.