Overview
The ATC UPA-130-GOV is a wired voltage detector assembly designed to pre-verify electrical isolation and detect live voltage in control panels before service work begins. This hardwired unit reduces the risk of arc flash incidents by providing visual LED indication of dangerous AC or DC potentials, enabling electricians to safely verify de-energized conditions. The detector monitors four input lines (L1, L2, L3, and ground) and uses redundant circuitry for reliable performance in lockout/tagout (LOTO) procedures.
Key Features
- Redundant Circuitry: Engineered with redundant detection for consistent, reliable voltage sensing
- Visual LED Indication: Eight detector channels with dual LEDs per phase line for AC and DC detection
- Self-Powered Design: Operates from the monitored voltage itself; no battery required
- Wide Voltage Range: Detects 40–750 VAC and 30–1000 VDC
- NEMA 4X Enclosure: Totally encapsulated housing for durability in industrial environments
- 30 mm Panel Knockout: Drop-in installation through standard electrical panel cutout
- Standards Compliance: UL and cUL Listed; meets NFPA 70E and OSHA electrical safety requirements
Technical Specifications
- AC Detection Range: 40–750 VAC
- DC Detection Range: 30–1000 VDC
- AC Frequency: 50/60 Hz
- LED Indicators: 8 detectors (2 per input line: + and −)
- Input Lines Monitored: L1, L2, L3, Ground (4 lines)
- Enclosure Rating: NEMA 4X, Totally Encapsulated
- Mounting: 30 mm panel knockout
- Termination: 6 feet (4) 18 AWG wired leads
- Power Source: Monitored voltage (self-powered; no batteries)
- Certifications: UL Listed, cUL Listed (UL File E55826)
- Weight: Approximately 2–3 lbs
- Application: LOTO / Absence of Voltage Verification
Typical Applications
- Control panel voltage monitoring before opening or servicing
- Lockout/tagout (LOTO) procedures in manufacturing and maintenance
- Arc flash risk mitigation in electrical safety compliance programs
- Three-phase and mixed AC/DC panel applications
- Industrial facilities requiring NFPA 70E electrical safety verification
- Switchboard and main disconnect monitoring in commercial buildings
Compatibility & Replacements
Compatible With
- Three-phase AC systems (40–750 VAC)
- Single and three-phase DC systems (30–1000 VDC)
- Standard electrical panels with 30 mm knockout openings
- Hardwired circuits (no special software or controllers required)
- NFPA 70E and OSHA electrical safety protocols
Replaces / Drop-In Replacement For
- Verify compatibility with your original equipment manufacturer (OEM) documentation if replacing an existing detector.
- UPA-130 series variants with 30 mm knockout mounting are electrically and mechanically compatible.
Works With
- Hardwired circuit breaker or main disconnect terminals
- Stored energy and continuous AC/DC voltage detection systems
- Manual lockout/tagout equipment and procedures
- No software, networking, or specialized control systems required
