PC-105 Series – Five-Channel Pump Controller Series - Littelfuse PC-105 Five-Channel Pump Controller Provides Exceptional Protection

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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The PC-105 series is a five-channel pump controller designed to handle multiple pump applications. Alternatively, it can operate as a five-channel switch. The PC-105’s control functions support all of the popular industry standard multi-pump pump-up and pump-down configurations. It can indicate low, high, and out-of-sequence alarms and use alternating and non-alternating pump control. The non-alternating pump can be used as a jockey pump or emergency pump. Using the built-in DIP switches, individual pumps can be disabled when taken out of service for repair or maintenance.


  • Compact design
  • Low, high, and out-of-sequence alarms
  • Variable time delay/lag pump delay from 2–255 s
  • Duplex SPS (separate pump stop) pump control
  • Duplex, triplex, or quadplex pump control
  • Pump-up or pump-down functions
  • External silence, reset, and alternation configuration
  • Five-channel relay configuration
  • DIN-rail or surface mountable
  • PumpSaver® performance

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Termination TypeMounting MethodDimensionsWeight (lbs/g)FrequencyInput AC Line Frequency (Hz)Maximum Input PowerOutput Load Rating (VA)Sense VoltageSensor ModeTime Delay OptionStockSamples
PC-105120 Vac nominalTorque: 6 in-lbs (max.); Wire: 12 - 20 AWG35mm DIN rail or Surface Mount (#6 or #8 screws)3.7 H x 5.03 W x 2.35 D in. (94.1 x 127.6 x 59.7 mm)0 Kg50; 6050 / 60 (50 will increase all delay timers by 20%)4Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 7 A @ 240 Vac5 Vdc continuous (probe)1 relay latched / time delay outputTime delay / lag pump delay: 2 - 255CheckOrder
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