We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green 30 mm mushroom push button operator with black epoxy coated zinc die cast bezel

SIEMENS

SIEMENS 52BM9W3 Mushroom Push Button Operator 30 mm Green

SKU CH-0YCP-0C53Z

30 mm green mushroom push-button operator with 63 mm head, metal body, plastic head, black epoxy-coated zinc die-cast bezel, NEMA 1, 3, 3R, 4, 4X, 12, 13 and IP66 ratings, CSA and UL listed

  • 30 mm mushroom head enables fast emergency actuation
  • Green colour provides instant visual identification on panels
  • IP66 rating protects against dust and powerful water jets
  • NEMA 1, 3, 3R, 4, 4X, 12, 13 suits indoor and outdoor enclosures
  • Metal base with black epoxy-coated zinc die-cast bezel resists corrosion and impact

30 mm Green Mushroom Push Button

The SIEMENS 52BM9W3 is a 30 mm momentary push button operator with a 63 mm green mushroom head. It is built for industrial control panels that require a highly visible emergency or stop function. The metal body and plastic head combine durability with clear colour coding. Panel builders and maintenance engineers specify it for safety circuits in harsh environments.

NEMA and IP ratings for sealing

The operator carries NEMA ratings 1, 3, 3R, 4, 4X, 12 and 13 together with IP66 ingress protection. These ratings mean the device resists dust, water jets and corrosion in both indoor and outdoor installations. No separate gasket kit is required to achieve the stated protection levels. The certifications cover the complete head and bezel assembly as supplied.

Metal body with epoxy coated zinc bezel

The basic material is metal while the bezel uses black epoxy coated zinc die cast for added corrosion resistance. This construction withstands repeated actuation and exposure to oils or cleaning agents common in factories. The 30 mm mounting diameter fits standard panel cutouts without adapters. Buyers needing illuminated heads or different colour codes must select a separate variant.

Highlights

  • 30 mm mushroom head enables fast emergency actuation
  • Green colour provides instant visual identification on panels
  • IP66 rating protects against dust and powerful water jets
  • NEMA 1, 3, 3R, 4, 4X, 12, 13 suits indoor and outdoor enclosures
  • Metal base with black epoxy-coated zinc die-cast bezel resists corrosion and impact

Specifications

BrandSIEMENS

Questions about this item

Does the 63 mm mushroom head need periodic replacement or is it maintenance-free?

The mushroom head is plastic on a metal base; it is designed for momentary push operation and has no stated replacement interval.

What is the first environmental limit reached under continuous industrial use?

The operator carries NEMA 1, 3, 3R, 4, 4X, 12, 13 and IP 66 ratings, so ingress protection is the primary sustained-use limit.

How much heat or noise does the 30 mm push button generate during all-day operation?

As a passive mechanical switch it produces no measurable heat or audible noise during continuous actuation.

More in Safety Switches & Disconnects

Similar items

Same shelf, same checkout — eight coins and a 30-minute rate lock.