Littelfuse 460-100-SP, 460-SP Series, Single-phase voltage monitor, Voltage Sensing AC 95 ~ 120VAC
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The 460-100-SP is used on 95–120 V ac, 50*/60 Hz single-phase motors and the 460-200-SP is used on 190–240 V ac, 50*/60 Hz 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
Proprietary microcontroller-based circuitry
Fixed trip delay 4 seconds
Adjustable restart delay (1–500 s)
Advanced LED indication
DIN-rail or surface-mountable
*Note: 50 Hz will increase all delay timers by 20 %
Pre-order 6-8 Weeks
Specifications
| Input Characteristics | |
| Line Voltage |
460-100-SP : 95–120 V ac 460-200-SP : 190–240 V ac |
| Frequency | 50*/60 Hz |
| Functional Characteristics | |
| Low Voltage (% of setpoint) |
Trip 90 % ±1 % Reset 93 % ±1 % |
| High Voltage (% of setpoint) |
Trip 110 % ±1 % Reset 107 % ±1 % |
| Trip Delay Time | Low or High Voltage: 4 seconds fixed |
| Restart Delay Time |
After a Fault: 1–500 seconds adjustable After a Complete Power Loss: 1–500 seconds adjustable |
| Output Characteristics | |
| Output Contact Rating (1 Form C) |
Pilot Duty 480 VA @ 240 V ac, B300 General Purpose 10 A @ 240 V ac |
| General Characteristics | |
| Ambient Temperature Range |
Operating: -40° to 70°C (-40° to 158°F) Storage: -40° to 80°C (-40° to 176°F) |
| Maximum Input Power | 6 W |
| Class of Protection | IP20, NEMA 1 (finger safe) |
| Relative Humidity | 10–95%, non-condensing per IEC 68-2-3 |
| Terminal Torque | 4.5 in.-lbs. |
| Wire Type | Stranded or solid 12–20 AWG, one per termina |
| Standards Passed | |
| Electrostatic Discharge (ESD) | IEC 61000-4-2, Level 3, 6 kV contact, 8 kV air |
| Radio Frequency Immunity, | Radiated 150 MHz, 10 V/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, 4 kV line-to-line; Level 4, 4 kV line-to-ground |
| ANSI/IEEE | C62.41 Surge and Ring Wave Compliance to a level of 6 kV line-to-line |
| Hi-potential Test | Meets UL 508 (2 x rated V +1000 V for 1 min) |
| Safety Marks | UL UL 508 (File #E68520) |
| 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 | 35 mm DIN rail or Surface Mount (#6 or #8 screws) |