Overview
The ABB TEY320 is a 20 amp, three-pole TEY bolt-on molded-case circuit breaker for compatible ABB/GE panelboards. Its thermal-magnetic trip provides overload and short-circuit protection, with voltage-dependent interrupting ratings of 65 kA at 240 V AC and 14 kA at 480Y/277 V AC.
Key Features
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Thermal-magnetic protection: Provides inverse-time overload protection and instantaneous short-circuit response.
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Bolt-on installation: Secures to compatible panelboard bus equipment and uses box-lug load terminals.
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Three-pole configuration: Supports compatible three-phase distribution circuits.
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Voltage-specific performance: The applicable interrupting rating is 65 kA at 240 V AC or 14 kA at 480Y/277 V AC.
Specifications
- Manufacturer part number: TEY320
- Series: TEY
- Current rating: 20 A
- Poles / phase: 3 poles / 3 phase
- Voltage ratings: 240 V AC; 480Y/277 V AC
- Interrupting ratings: 65 kA at 240 V AC; 14 kA at 480Y/277 V AC
- Protection: thermal-magnetic molded-case circuit breaker
- Mounting: bolt-on
- Load terminals: box lugs
- Conductor range: 14–10 AWG
- Temperature calibration: 40°C
- Certifications / ratings: UL 489, CSA, HACR, HID
Common Applications
- Compatible ABB/GE panelboards requiring the exact TEY320 three-pole breaker.
- Three-phase branch and distribution circuits within the manufacturer's voltage and interrupting-rating limits.
- Lighting and HVAC loads where the HID or HACR rating is required by the equipment specification.
- Like-for-like replacement of TEY320 in manufacturer-listed panelboard equipment.
