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Custom Panels Centurion® Custom Control Panel Centurion® Configurable Control Panel M-LINK® TTD™ Series Panel Centurion® Series TTD™ Series MX Series TDXM-DC TC, RTD and RTDT Series SPL Series PXT-K Series 45APE Series OPL Series PD8100 Series TDX6 20T/25T 25DP and A25DP 20P/25P A20P/A25P Tattletale® EICS® – Engine Integrated Control System AFR-1R AFR-9R AFR-64R AFR-64L IntelliSpark® Ignition Coils 601 CD Ignition System Thermocouples LM300 Series LM500/LM500-TF Series L150 and EL150 Series L129 Magnetic Pickups VS2™ Series L971 Series M25/M50 Series M2582-P/M5180-P RG50 RG20 RG10 SDB Series LR500 Series LR857 PC88 PC48 RV10 RG40 RG30 CV45 CV41 CV40 CV30 CV20 CV15S CV15 CV14 CV10S CV10 PR50 PL30 BP50 Scrubber Level System – SLS Kit LS200 Series MLS Series DVU Series DF Series CH10, CH20, CH30 LG20 LC70 LC40 LC10 Series VS94 GV20

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L971 Series
Engine/Air-Fuel Ratio Controls ► L971 Series
Compressor Controls ► L971 Series

Crankcase Level Switches

L971 Series, Crankcase Level Switches

  "For information on specifications and prices, please contact us"  

The FW Murphy L971 Series Level Switch detects low oil level in a compressor’s crankcase.

  • Durable low level switch
  • Replaces non explosion-proof switch on Ingersoll-Rand compressors
  • Adaptable to other compressors
  • Installs with minimal downtime

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Overview

As oil level in the crankcase depletes, the float on the L971 switch falls, and when reaching the predetermined limit, it will trip the internal snap-switch sounding an alarm or initiating shutdown.

The L971 is designed for Ingersoll-Rand Type 30, Type 40 and ESH compressors, yet it can be adapted to fit other compressors that have an inspection plate extending below normal operating oil level. It installs with minimal downtime and has a two-year limited warranty.

The L971 has a 1/2 NPT process connection and features an explosion-proof enclosure, durable SPDT snap-switch and rigid polyurethane foam float. A 304 stainless steel float is available on certain configurations.