Littelfuse 111-Insider-P User manual

FRESH WATER
PUMPING
CATALOG
Submersible Pump Protection • Single-Phase Pump Protection
Three-Phase Pump Protection • Liquid Level Protection

Fault Damage
Equipment Replacement
Calibration Costs
Compliance Citations
Motor Rewinds
Shock Hazard
Injury to Personnel
Arc-Flash Hazards
Open-CT Hazards
Failed Resistors
Replacement Time
Nuisance Tripping
Intermittent Faults
Unreliable Protection
Calibration Time
CostSafety Downtime
Cover photo of pump (left) is courtesy of the Department of Water Resources
For All Types of
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We Improve Electrical Safety and Increase Productivity
The Industrial Business Unit of Littelfuse delivers vital products to address
customer needs for protection, safe control and distribution of electrical power in
industrial applications. Our electrical safety product portfolio includes a
comprehensive line of fuses, fuse holders, protection relays, and custom-
engineered electrical products to minimize electrical safety hazards, limit
equipment damage, improve productivity, and safeguard personnel from injury
due to electrical faults.
Technically speaking, professionals in construction, manufacturing, mining, oil &
gas, solar, and many more industries rely on Littelfuse for rugged, lasting
protection for their designs.

© 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

© 2018 Littelfuse Fresh Water Pumping
2
Submersible Pumps – Optimized Protection
Franklin™, CentriPro™, Pentek®, Grundfos®or Flint and Walling™Control Box
111-INSIDER-P / 231-INSIDER-P
Single-Phase Pump Monitor
Littelfuse.com/Pump-Protection
Description
The Littelfuse 111-Insider-P single-phase products fit inside ¹⁄³and
½ hp, 115V control boxes and the 231-Insider-P fits inside ¹⁄ ³,½,
¾, and 1 hp, 230V control boxes. Both models are designed to
protect single-phase pumps from dry-well, dead-head, jammed
impeller, rapid-cycle, overvoltage, and undervoltage conditions.
A calibration adjustment allows the Insider to be calibrated
to your specific pumping applications, thereby reducing
the possibility of false or nuisance tripping. A unique
microcontroller-based voltage and current-sensing circuit
constantly monitors the incoming power for fluctuations,
overcurrent, and undercurrent. When an abnormality, such as
loss of suction is detected, the product deactivates its output
relay and directly disconnects the pump motor. The unit then
begins its user-selectable restart delay (dry-well recovery)
timer. When the timer counts to zero or power is removed and
reapplied, the unit reactivates its output relay and turns the
pump back on. By leaving the restart delay knob in the reset
position, the unit will operate in manual reset mode.
The Insider communicates with a hand-held diagnostics tool
called the Informer (sold separately). The Informer displays
parameters including calibration points, trip points, run time and
last faults. An IR Kit-12 (12” fiber optic kit) is included with each
Insider, allowing the Informer to access these parameters even
when the Insider is enclosed in a control box. This is valuable for
troubleshooting the pump while it is running.
NOTE: The 111/231-Insider-P models have a sensitivity adjustment for the dry-well trip point.
After calibration is done, you can adjust the sensitivity for the dry-well/dead-head trip point
from 70-90% of the full load. This makes the unit even more adaptable to varying pumping
applications. If you have a very low producing well, you increase the sensitivity closer to the
90% mark, or if you have a very heavy producing well, you would decrease the sensitivity around
the 70% mark.
Accessories
Informer
A hand-held diagnostic tool that uses an infrared
receiver to access information which can be
helpful for troubleshooting the system.
Informer IR Kit-12
Attaches to the face of the unit to provide
remote diagnostics without opening the panel.
(12” fiber optic cable)
MODEL VOLTAGE DESCRIPTION
111-Insider-P 115VAC ¹⁄³ - ½ hp, includes IR Kit-12
231-Insider-P 230VAC ¹⁄³- 1 hp, includes IR Kit-12
Ordering Information

© 2018 Littelfuse Fresh Water Pumping 3
Specifications
Functional Specifications
Adjustments/Settings
Overcurrent 125% of calibration point
Underload (dry-well) Adjustable (70 to 90% of calibrated run power)
Overvoltage
111-Insider-P 132.5VAC
231-Insider-P 265VAC
Undervoltage
111-Insider-P 95VAC
231-Insider-P 190VAC
Number of restarts allowed
in a 60-sec. period
(rapid-cycling) 4
Trip Delay Times
Overcurrent 5 seconds
Dry-well 4 seconds
Restart Delay Times
Over/Undervoltage 2 seconds
All other faults Manual, 2-225 minutes
Submersible Pumps – Optimized Protection
Franklin™, CentriPro™, Pentek®, Grundfos®or Flint and Walling™Control Box
111-INSIDER-P / 231-INSIDER-P
Littelfuse.com/Pump-Protection
MODEL 231/111
INSIDER-P
BLUE
FIGURE 5: Pentek®Control Box withthe PumpSaver®Plus Installed
PENTEK®CONTROL BOX WIRING DIAGRAM FRANKLIN™ CONTROL BOX WIRING DIAGRAM
111-Insider-P/231-Insider-P
in Franklin™Control Box
SOLID-STATE
SWITCH
B(MAIN) Y(COMM)
BLK
RED
ORANGE
YEL
R(START) L2 L1
BLUE 111/231
INSIDER-P
Installation Instructions
Input Characteristics
Supply Voltage
111-Insider-P 115VAC
231-Insider-P 230VAC
Load Range
111-Insider-P ¹⁄³– ½ hp
231-Insider-P ¹⁄³– 1 hp
Frequency 50/60Hz (Note: 50Hz will increase all
delay timers by 20%)
Output Characteristics
Output Contact Rating-SPST
111-Insider-P ½hp@120VAC (17 amps max.)
231-Insider-P 1hp@ 240VAC (17 amps max.)
General Characteristics
Operating Temperature -40º to 60º C (-40º to 140º F)
Maximum Input Power 5 W
Safety Marks
cURus* UL508, C22.2 No. 14
Weight 10 oz.
Mounting Methods Inside a Pentek®, Franklin™, CentriPro™,
Grundfos® (mfg after mid-2014), and Flint and
Walling™ control box
*The 111-Insider-P and 231-Insider-P are approved by UL for use in the Franklin™, Pentek®, and
CentriPro™ type 3R control boxes when installed as described in the installation instructions.
The 111-Insider-P and 231-Insider-P are not intended to provide overload protection, and should
be used with thermally or impedance protected motors only.