Protection Relays
Voltage Monitoring Relays
460-XXX-SP SERIES
Single-phase voltage monitor
Description
The 460-100-SP is used on 95-120VAC, 50*/60Hz single-phase
motors and the 460-200-SP is used on 190-240VAC, 50*/60Hz
single-phase motors to protect them from damaging high and
low voltage conditions. An adjustment knob allows the user to
set a 1-500 second restart delay. The variable restart delay is also
a power-up delay and can be utilized to stagger-start motors on
the same system.
A unique microcontroller-based, voltage-sensing circuit
constantly monitors the voltage to detect harmful power
line conditions. When a harmful condition is detected, the
MotorSaver’s output relay is deactivated after a specified trip
delay. The output relay reactivates after power line conditions
return to an acceptable level and a specified amount of time has
elapsed (restart delay). The trip delay prevents nuisance tripping
due to rapidly fluctuating power line conditions.
Features & Benefits
FEATURES
BENEFITS
Constant monitoring of voltage to detect harmful
power line conditions, even before a motor starts
Prevents nuisance tripping due to rapidly fluctuating
power line conditions
Allows staggered start up of multiple motors on the
same system to prevent a low voltage condition
Provides diagnostics which can be used for
troubleshooting and to determine relay status
Allows flexibility for panel assembly
Wiring Diagram
Proprietary
microcontroller
based circuitry
Fixed trip delay 4s
Adjustable restart
delay (1-500s)
Advanced LED indication
DIN rail or surface
mountable
Ordering Information
MODEL
LINE VOTAGE
460-100-SP
460-200-SP
95-120VAC
190-240VAC
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/460xxxsp
Rev: 1-A-062716
Protection Relays
Voltage Monitoring Relays
460-XXX-SP SERIES
Specifications
Input Characteristics
Line Voltage
460-100-SP
460-200-SP
Frequency
Functional Characteristics
Low Voltage (% of setpoint):
Trip
Reset
High Voltage (% of setpoint)
Trip
Reset
Trip Delay Time
Low or High Voltage
Restart Delay Time
After a Fault
After a Complete Power Loss
Output Characteristics
Output Contact Rating
(1 Form C)
Pilot Duty
General Purpose
General Characteristics
Ambient Temperature Range
Operating
Storage
Maximum Input Power
Class of Protection
Relative Humidity
Terminal Torque
Wire Type
95-120VAC
190-240VAC
50*/60Hz
90% ±1%
93% ±1%
110% ±1%
107% ±1%
4 seconds fixed
1-500 seconds adjustable
1-500 seconds adjustable
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, 3.5 kV 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
UL508 (File #E68520)
CE
IEC 60947-6-2
Enclosure
Polycarbonate
Dimensions
H
88.9 mm (3.5”);
W
52.93 mm (2.084”);
D
59.69 mm (2.35”)
Weight
0.9 lb. (14.4 oz., 408.23 g)
Mounting Method
35mm DIN rail or Surface Mount
(#6 or #8 screws)
*Note: 50 Hz will increase all delay timers by 20%
480VA @ 240VAC, B300
10A @ 240VAC
-40° to 70°C (-40° to 158°F)
-40° to 80°C (-40° to 176°F)
6W
IP20, NEMA 1 (finger safe)
10-95%, non-condensing per IEC 68-2-3
4.5 in.-lbs.
Stranded or solid 12-20 AWG, one per terminal
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/460xxxsp
Rev: 1-A-062716
微控制器 MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
