© 2018 Littelfuse Fresh Water Pumping
1
Fresh Water Pumping
Littelfuse.com/Pump-Protection
TABLE OF CONTENTS
SUBMERSIBLE PUMPS - OPTIMIZED PROTECTION
111-Insider-P / 231-Insider-P with Control Box ...........................................2
Single-Phase Pump Monitor
232-Insider with Grundfos
®
Control Box .......................................................5
Single-Phase Pump Monitor
234-P with Grundfos
®
Control Box ................................................................7
Single-Phase Pump Monitor
111P / 233P / 233P-1.5 .......................................................................................9
Single-Phase Pump Monitor
235P ....................................................................................................................11
Single-Phase Pump Monitor
Abbreviated Installation Instructions ..........................................................13
111P / 233P / 233P-1.5 / 235P in Enclosure .................................................15
Single-Phase Pump Monitor in a NEMA box
SINGLE-PHASE & THREE-PHASE PUMP PROTECTION
MP8000 Series .................................................................................................16
Bluetooth
®
Overload Relay
SINGLE-PHASE PUMP PROTECTION
77C-KW/HP (2-800 Amps) ..............................................................................20
Programmable
77C-LR-KW/HP (1-9 Amps) ............................................................................20
Low-Range Programmable
THREE-PHASE PUMP PROTECTION
777-P2 Series ...................................................................................................25
Fully Programmable Electronic Overload Relay
777-KW/HP-P2 Series .....................................................................................27
Programmable Electronic Power Monitor
LIQUID LEVEL PROTECTION
460-15-100-LLS .................................................................................................36
Liquid Level Sensor Relay (DIN-rail or surface mount)
PC-xxx-LLC-CZ / PC-xxx-LLC-GM Series ....................................................38
Liquid Level Control Relays (8-pin plug-in)
ACCESSORIES
NEMA 3R-L Enclosure ....................................................................................42
Metal Electric Box
Informer ............................................................................................................43
Hand-Held Diagnostic Tool