4440004 Potter BMC-33B 1 3/8" to 3" NO/NC Anti-Defeat Double Bias Contact

Features

• 1 3/8” to 3” operating gap
• 24” armored cable
• Corrosion resistant
• Alnico 6 magnet
• Anodized aluminum housing

Application

The BMC-33B Anti-Defeat Magnetic Contacts are uniquely designed and constructed to make defeating almost impossible. The switch housing contains specially arranged reed switches. These reed switches are pre-set in a biased format with ring magnets, producing a symmetrical magnetic field. The magnetic layout is designed with a combination of three polarized magnets. This switch and magnetic combination produces a perfect symmetrical magnetic field in a balanced condition, as if no magnet field existed. Any attempt to bypass or defeat the BMC-33B with an external magnet will cause the magnetic fields to be imbalanced, thus causing an alarm condition.

Specifications

• Model Number - BMC-33B
• Stock Number - 4440004
• Contact Rating - 3VA
• Contact Type - N.O/N.C
• Max. Carry Current - .5 Amp
• Max. Switching Current - .5 Amp
• Breakdown Voltage - 200VDC min
• Operating Gap - 1 3/8” to 3”
• Mounting Method - Screws
• Temperature Range - 32°F - 120°F (0°C - 49°C)

4440004 Specifications PDF