201A-AU Series Datasheet by Littelfuse Inc.

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% Liltelfuse“ mmmwm \ Ansvwvsuchvnmd @CE mum Dwain CONML puma mruv rowan omAL SDCKEY coma“ rowan © 2016 lwlta‘fuse Pmtactmn Relays 84 Cuntm‘s
© 2016 Littelfuse Protection Relays & Controls
Protection Relays
Voltage Monitoring Relays
www.littelfuse.com/201aau
Rev: 1-A-062116
Description
The 201A-AU is a 3-phase, auto-ranging, dual-range voltage
monitor that protects 190-480VAC, 50/60Hz motors regardless
of size. The product provides a user selectable nominal voltage
setpoint and the voltage monitor automatically selects between
the 200V and 400V range. Additional adjustment knobs allow
the user to set a 1-30 second trip delay, a manual restart or
1-500 second restart delay and a 2-8% voltage unbalance
trip point. The Model 201A-AU includes advanced single LED
diagnostics, where color and light patterns distinguish between
faults and normal conditions.
This unique microcontroller-based voltage and phase-sensing
device constantly monitors the 3-phase voltages to detect
harmful power line conditions. When a harmful condition is
detected, the 201A-AU’s output relay is deactivated after a
specified trip delay. The output relay reactivates after power line
conditions return to acceptable levels for a specified amount or
restart delay time (or manual reset).
Features & Benefits
FEATURES BENEFITS
Proprietary
microcontroller
based circuitry
Constant monitoring of loss of any phase, low
voltage, high voltage, voltage unbalance, phase
reversal, rapid cycling, harmful power line conditions
Compact design for 8-pin;
DIN rail or surface mount Allows flexiblility in panel installation
Auto-sensing wide
voltage range
Automatically senses system voltage between
190 - 480VAC. Saves setup time.
Advanced LED
diagnostics Quick visual indicator for cause of trip.
Adjustable voltage
unbalance trip setting
Allows compatibility with a variety of motors and
reduces nuisance tripping.
Adjustable trip & restart
delay settings
Prevent nuisance tripping due to rapidly fluctuating
power line conditions.
Accessories
OT08PC Octal 8-pin Socket
8-pin 35mm DIN rail or surface mount. Rated at
10A @ 600VAC. Surface mounted with two #6
screws or snaps onto a 35 mm DIN rail.
Ordering Information
MODEL LINE
VOLTAGE DESCRIPTION
201A-AU 190-480VAC DIN rail or surface mountable
201575-AU 475-600VAC DIN rail or surface mountable
201A-AU-OT 190-480VAC Sold with OT08PC socket
201-575-AU-OT 475-600VAC Sold with OT08PC socket
3-Phase Voltage/Phase Monitor
201A-AU SERIES
Wiring Diagram
201A-AU WITH MOTOR CONTROL
201A-AU WITH ALARM CONTROL
L2
L1
L3
L2
L1
L3
LIGHT HORN
TYPICAL WIRING DIAGRAM FOR MODEL 201A-AU
WITH MOTOR CONTROL
TYPICAL WIRING DIAGRAM FOR MODEL 201A-AU
WITH ALARM CONTROL
L2
L1
L3
L2
L1
L3
LIGHT HORN
TYPICAL WIRING DIAGRAM FOR MODEL 201A-AU
WITH MOTOR CONTROL
TYPICAL WIRING DIAGRAM FOR MODEL 201A-AU
WITH ALARM CONTROL
% Liltelfuse“ mmmwm \ n umm © 2016 lmalfuse Pmtactmn Relays 84 Carma
© 2016 Littelfuse Protection Relays & Controls
Protection Relays
Voltage Monitoring Relays
www.littelfuse.com/201aau
Rev: 1-A-062116
Specifications
Frequency 50/60Hz
Functional Characteristics
Low Voltage (% of setpoint)
Trip 90% ±1%
Reset 93% ±1%
High Voltage (% of setpoint)
Trip 110% ±1%
Reset 107% ±1%
Voltage Unbalance (NEMA)
Trip 2-8% adjustable
Reset Trip Setting Minus 1% (5-8%)
Trip Setting Minus 0.5% (2-4%)
Trip Delay Time
High, Low and
Unbalanced Voltage 1-30 seconds adjustable
Single-Phasing Faults 1 second fixed
Restart Delay Time
After a Fault Manual, 1-500 seconds adj.
After a Complete
Power Loss Manual, 1-500 seconds adj.
Output Characteristics
Output Contact Rating
(1-Form C)
Pilot Duty 480VA @ 240VAC, B300
General Purpose 10A @ 240VAC
General Characteristics
Ambient Temperature Range
Operating -40° to 70°C (-40° to 158°F)
Storage -40° to 8C (-40° to 176°F)
Trip & Reset Accuracy ±1%
Maximum Input Power 5 W
Relative Humidity 10-95%, non-condensing per IEC 68-2-3
Terminal Torque 12 in.-lbs. (for OT08-PC socket)
Wire Gauge 12-22 AWG solid or stranded
201A-AU SERIES
Standards Passed
Electrostatic Discharge (ESD) IEC 61000-4-2, Level 3, 6kV contact, 8kV air
Radio Frequency
Immunity, Radiated 150 MHz, 10V/m
Fast Transient Burst IEC 61000-4-4, Level 3, 3.5kV input power
and controls
Surge
IEC IEC 61000-4-5, Level 3, 4kV line-to-line;
Level 4, 4kV line-to-ground
ANSI/IEEE C62.41 Surge and Ring Wave Compliance to
a level of 6kV line-to-line
Hi-potential Test Meets UL508 (2 x rated V +1000V for 1 min.)
Safety Marks
UL (OT08PC octal
socket required) UL508 (File #E68520)
CE IEC 60947-6-2
Enclosure Polycarbonate
Dimensions H 44.45 mm (1.75); W 60.325 mm (2.375”);
D 104.775 mm (4.125”) (with socket)
Weight 0.7 lb. (11.2 oz., 317.51 g)
Mounting Method DIN rail or surface mount
(plug in to OT08PC socket)
Socket Available OT08PC (UL Rating 600V)
The 600V socket can be surface mounted or installed on DIN Rail.
Note: Manufacturer’s recommended screw terminal torque for the OT Series Octal Sockets is
12 in.-lbs
.
Must use Model OT08PC socket for UL Rating!

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