Alera ALECASTERST2 dual-wheel hooded casters B stem 2" black 5/set 100 lb hardware
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A 22 mm metal dual-head operator with green and red momentary flush buttons, IP66 and NEMA 4X rated for industrial control panels
The Schneider Electric ZB4BW7A3740 is a 22 mm multi-head operator designed for industrial control panels. It presents two flush momentary buttons in green and red for clear start/stop or up/down signalling. The unit suits machine builders and maintenance teams who need a compact, standards-compliant interface.
Both the head and bezel are metal, giving mechanical strength for repeated actuation in harsh environments. The operator meets IP66 and NEMA 13, 4X ratings, so it resists dust, water jets and oil ingress on a daily basis. Panel mounting uses the standard 22 mm cut-out, allowing direct replacement in existing enclosures.
The single specification that determines suitability is the green/red momentary/momentary operation. If the application requires maintained positions, keyed actuators or a different colour code, this operator will not match the control logic. Buyers needing alternate legends, pilot lights or selector switches must choose a different reference.
Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | SCHNEIDER ELECTRIC |
| Product type | Industrial Electrical Controls & Automation |
| Size & build | |
| Size | 22 mm |
IP66 means the head is dust-tight and withstands powerful water jets, suitable for wash-down environments.
It fits a standard 22 mm cut-out; the metal bezel adds minimal front-of-panel depth and secures with a locking nut.
Each button has its own contact block; connect the lamp module to the supply voltage matching the LED, then wire NO or NC contacts per function.
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