Overview
The Cutler Hammer PTX080-1S101 is a split-phase surge suppression device engineered for protecting electrical equipment from transient overvoltages and switching surges. Manufactured by Eaton Corporation, this suppressor provides effective voltage clamping across phase-to-neutral and phase-to-ground circuits in single-phase and split-phase power systems. The unit features LED status indication to visually confirm suppressor operational status and surge detection events.
Key Features
- Split-phase configuration for 100/200V, 110/220V, or 150/300V nominal systems
- Single LED per phase for visual operational status and surge event indication
- 3-wire plus ground (3w+grnd) connection topology
- UL 1449 certified surge protection performance
- Compact panel-mount design for standard electrical cabinets
- Low maintenance operation with no field replaceable components required
Technical Specifications
- MCOV (Maximum Continuous Operating Voltage): 100V or 120V depending on configuration
- UL 1449-2 Ring Wave Test: 2 kV, 67 A per circuit
- UL 1449-2 Impulse Test (6 kV, 3 kA): Phase-to-ground and phase-to-neutral protection
- Nominal Voltage Ratings: 100/200V, 110/220V, or 120/240V split-phase
- Connection: 3-wire plus ground configuration
- Mounting: Panel-mount installation
- Standards: ANSI/IEEE C62.41-1991, UL 1449-2 certified
Typical Applications
- Residential and light commercial electrical panels
- Industrial control circuits requiring surge protection
- HVAC and motor control systems
- Building automation and energy management systems
- Telecommunications and networking equipment protection
- Any split-phase 120/240V or equivalent distribution system
Compatibility & Replacements
Compatible With
- Split-phase electrical service (120/240V or 110/220V systems)
- Standard three-wire plus ground panel configurations
- Any equipment requiring UL 1449-2 certified surge protection
- Existing Cutler Hammer/Eaton panel infrastructure
Replaces / Drop-In Replacement For
- PTX080-1S101 (original model designation)
- Earlier Cutler Hammer single-phase surge arrestor models with equivalent voltage ratings
- Generic surge suppressors rated for 100/200V or 120/240V split-phase systems
Works With
- Standard North American 120/240V split-phase service entrance
- Cutler Hammer/Eaton panelboard systems
- IEC-compliant surge protection ecosystems
- ANSI C62.41 category B and C rated power distribution circuits




