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Black 30 mm mushroom push button with chrome bezel

SIEMENS

SIEMENS 52PM9W1K 30 mm Mushroom Push Button 1NO Black

SKU CH-28CZ-G91BT

30 mm mushroom push button with momentary action, 1NO contact rated 10A at 600V AC, and IP66 protection

  • Engine BrandSIEMENS
  • Engine Size30 mm
  • Reliable switching with 10A at 600V AC contact rating
  • Durable chrome-plated zinc die-cast bezel resists industrial wear
  • Broad NEMA 1, 12, 13, 3, 3R, 4, 4X enclosure protection
  • High ingress resistance with IP10, IP11, IP14, IP52, IP54, IP56, IP66 ratings
  • Certified to CSA, REACH and UL Listed standards for compliance

30 mm Mushroom Push Button

The SIEMENS 52PM9W1K is a 30 mm mushroom head push button operator designed for industrial control panels. It provides momentary action with a single normally open contact block for basic start or signal functions. The black plastic head measures 44 mm in diameter and mounts in a standard 30 mm cutout. Panel builders wiring control circuits for machinery or process equipment will find it fits standard enclosures.

Contact rating and environmental limits

The contact block carries a 10A rating at 600V AC with an A600/P600 NEMA designation. The operator meets NEMA type 1, 3, 3R, 4, 4X, 12 and 13 ratings for indoor and outdoor use. IP ratings listed include IP10, IP11, IP14, IP52, IP54, IP56 and IP66, indicating protection against dust and powerful water jets. The pressure-plate terminal accepts solid or stranded wire without special tooling.

Replaces worn or undersized operators

This unit replaces damaged mushroom heads or smaller flush buttons where a larger actuation surface improves operator response. The jump is worth it when an existing 30 mm mounting hole must stay but the application demands IP66 sealing or a 10A contact rating. It is not for circuits requiring normally closed contacts, illuminated heads or maintained action operators.

Highlights

  • Reliable switching with 10A at 600V AC contact rating
  • Durable chrome-plated zinc die-cast bezel resists industrial wear
  • Broad NEMA 1, 12, 13, 3, 3R, 4, 4X enclosure protection
  • High ingress resistance with IP10, IP11, IP14, IP52, IP54, IP56, IP66 ratings
  • Certified to CSA, REACH and UL Listed standards for compliance

Specifications

Engine BrandSIEMENS
Engine Size30 mm

Questions about this item

Which colour and contact type should I pick for a standard emergency stop?

This unit is supplied in black with a single normally-open contact block.

What load can the 10 A 600 V AC rating actually switch in a control panel?

It handles 10 A at 600 V AC per the A600/P600 designation, suitable for motor starters and contactor coils.

What does the NEMA 4X and IP66 rating mean for outdoor mounting?

The operator withstands hose-down water and corrosion, so it can be mounted on exposed enclosures.

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