Binmaster BM45 Diaphragm Switch
Brands: Binmaster
Product Code: BM45
Availability: In Stock


The BM45 provides simple, low-cost point level control with proven, lasting reliability. Designed for use in bins containing non-hazardous, free-flowing dry materials, the BM45 operates by sensing material pressing against the diaphragm switch. When the switch is pressed, it activates a sensitive micro-switch that can be wired to an alarm to start or stop a process or alert to high, medium or low levels in bins. The BM45 is offered in six different models including standard, heavy-duty neoprene, or heavy-duty silicone diaphragm material and either internal or external mounting options.


  • Reliable point level detection for free flowing dry materials
  • Used in bins, vessels and some plugged chute applications
  • Material density from 20 lb./cu. ft.
  • Feed, seed, grain, food, rubber, plastics, light powders, granules, and many other materials

Output 15 Amps @125, 250 or 480 VAC; 1/2 Amp @ 125 VDC, 1/4 Amp @ 250 VDC
Enclosure Die cast aluminum; 16 gauge galvanized mounting plate