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Technical Information on PB-ALM

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The SPDT relay of the PB-ALM provides both 'normally open' (N/O) and 'normally closed' (N/C) contacts. Easy connections are provided for connecting a bell, flashing light, autodialer or cell phone pager. No special programming is required for setup.

The external green pulse indicator LED makes tuning the pump and Digi-Pulse ® a snap. An NPI exclusive!

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  • NEW! Green external pulse indicator LED.
  • Convenient pre-mounted, pre-wired components.
  • Choice of ¼", 3/8 " or ½" tubing or; ¼" or ½" NPTM connections to the Digi-Pulse ® sensor.
  • Input voltage: available for 120 VAC (50/60 Hz) operation.
  • Single SPDT output relay with 10 ampere-rated Form C contacts. (Motor Load: 1 HP @ 125 VAC). Unit ships with non-powered relay contacts.
  • Easily adjustable pump monitoring period: 0.5-50 minutes.
  • Internal fuse protection.
  • Fully-encapsulated solid-state electronics.
  • Available with liquid-tight connector for alarm cable.
  • Robust NEMA 4X thermoplastic enclosure with stainless steel cover screws.
  • Low-cost, simple installation due to pre-wired, pre-mounted components, plus pre-drilled panel holes [4 x 5/16 (8 mm) diameter holes].
  • Modular design for ease of maintenance.