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Littelfuse 460L-OEM 3-Phase Voltage Monitor, 190-480V Adj
$1,887$2,265 (-17%)
Littelfuse 460L-OEM three-phase voltage monitoring relay 190-480 VAC with pilot duty 480 VA and 10 A general output. Genuine Littelfuse unit, available from Wulan Dari with fast delivery across Indonesia and Southeast Asia.
The Littelfuse 460L-OEM is a three-phase voltage monitoring relay for 190-480 VAC systems, providing adjustable undervoltage, overvoltage and phase-unbalance protection. This DIN-rail voltage monitor delivers pilot and general-purpose outputs, configurable trip/restart delays and reliable trip accuracy, making it ideal for motor control, generator sets and industrial power panels. It features ±1% trip accuracy, a 6% unbalance trip point and single-phase fault detection with a fixed 4 s delay.
Key Features
- Universal supply 190-480 VAC for three-phase industrial power systems.
- Pilot duty output 480 VA @240 V (B300) plus general-purpose 10 A @240 V.
- Adjustable trip delays (1-30 s) and wide restart delay range (1-500 s).
- Undervoltage trip 90% (reset 93%), overvoltage trip 110% (reset 107%).
- ±1% trip accuracy, 6% unbalance trip point and single-phase fault fixed 4 s delay.
- DIN-rail mount, torque termination (6 in-lbs) for 12-20 AWG; IP20 / NEMA 1 housing with 10-95% non-condensing humidity rating.
Technical Specifications
| Manufacturer | Littelfuse |
|---|---|
| Commercial Reference | 460L-OEM |
| Component | Voltage Monitoring Relay |
| Mounting | DIN Rail |
| Supply Voltage | 190-480 V AC |
| Frequency | 50/60 Hz |
| Output Ratings | Pilot duty 480 VA @240 V (B300); General-purpose 10 A @240 V |
| Trip / Reset Points | Undervoltage trip 90% (reset 93%); Overvoltage trip 110% (reset 107%); Unbalance trip 6% (reset 4.5%) |
| Delays | Trip delay 1-30 s (adjustable); Single-phase fault fixed delay 4 s for >25% unbalance; Restart delay 1-500 s (adjustable) |
| Accuracy | Trip point accuracy ±1% |
| Termination | Torque terminals 6 in-lbs; accepts 12-20 AWG stranded or solid |
| Power Consumption | Maximum input power 6 VA |
| Environment & Protection | IP20 / NEMA 1, 10-95% non-condensing humidity |
Applications
Used for motor control centers, air compressor and pump protection, generator and transfer-switch supervision, industrial distribution panels and HVAC systems where phase balance and voltage quality must be monitored at the panel or equipment level.
All units are genuine Littelfuse products supplied through authorized channels. Based in Batam, Wulan Dari ships quickly across Indonesia and Southeast Asia. Contact us for availability, lead time and a competitive quotation — our sales and technical team can help specify the correct voltage monitoring relay for your installation.
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