Cat. Nos. 37120-007 and 37277-007 are designed for indoor installation at the service entrance, distribution and branch panel locations
for protection against high-energy, transient voltage surges. These devices provide dedicated surge protection for each phase to neutral,
phase to ground and neutral to ground in three-phase WYE AC applications through parallel wiring that facilitates connection to any service
ampacity.
Standard Specification:
All 37000 Series units are designed for use where a multi-phase, transient voltage surge suppressor (TVSS is specified). They provide full,
7-mode protection in 120/208V and 277/480V WYE-configured, 3-phase systems. Their parallel-operated design features 40mm-diameter, metal-oxide
varistors and EMI/RFI filter circuitry equipped with high-voltage-rise capacitors for harmonic tolerance. Both units have been tested to
ANSI/IEEE C62.41 and C62.45 standards for Category A, B, and C environments and are UL 1449 (2nd Edition) Listed. They are also backed by
Leviton's 10-Year Warranty.
Features
- 7-mode protection (each phase to neutral, each phase to ground and neutral to ground) for WYE-configured, 3-phase AC systems
- Low clamping and high surge current performance; Clamping envelope tracks contour of the AC sine wave
- Real-time diagnostics monitor power and suppression status for each phase and provide both LED indicators and an audible alarm
- Equipped with dry contacts for remote diagnostics
- Rated 100kA per mode based on actual tests
- 1000-cycle, 10kA Category C3 tested
