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Circuit Breakers for Branch Circuit Protection
UL489 Molded Case Circuit Breakers
PLACE ORDER - DIN Rail Mounted
- Disconnect and Switching Function
- 17.5 mm (0.69") Width per Pole
- Thermal Magnetic and Current Limiting
- Available in AC and DC
- 240V, 480Y/277 Vac, 50/60Hz
- 125 Vdc (1-Pole), 250 Vdc (2-Pole)
- 10kA Short Circuit Interrupting Capacity
- HACR Type 40°C (104°F)
- Line/Load Reversible
Description
Description
The UL 489 Series miniature molded casecircuit breakers are DIN rail mountable andprovide feeder and branch circuit protectionper UL 489. Typical uses includeconvenience receptacles, motor controls,load circuits leaving equipment, and heatingand air conditioning.UL 489 Series miniature circuit breakers areavailable in one-, two-, three- and four-poleconfigurations and up to 23 different currentratings from 0.3A to 63A and can safely beused in applications up to 480Y/277 Vacwith a 10kA short circuit withstand rating.
AC Application C-Trip Curve
Low inrush motors, resistive loads, wiringprotection, receptacles, lighting, and controlcircuit applications. Relatively short thermaltrip delay and medium magnetic trip point.
AC Applications D-Trip Curve
High inrush motors, transformers, powersupplies, heaters and reactive loads.Relatively long thermal trip delay and veryhigh magnetic trip point.
DC Applications C and D-Trip Curves
Telecommunication equipment, computerequipment, uninterruptable power supplies.
Features Provided by the Different Types of Circuit Breakers
UL1077 Recognized Supplementry Protectors
Overload Protection
UL508 Listed Manual Motor Controllers
Overload Protection
Switching Function
Disconnect Function
UL489 Miniature Molded Case Circuit Breakers
Overload Protection
Switching Function
Disconnect Function
Short Circuit Protection
Specifications
Current/Voltage Rating:
AC: 0.3-63A – 240 Vac
AC: 0.3-32A 480Y/277 Vac
DC: 0.3-63A 125 Vdc 1-pole - 250 Vdc 2-pole
Electrical Life: 6000 cycles on/off
Mechanical Life: 10,000 cycles on/off
Calibration Temperature: 40°C (104°F)
Operating Temperature: -25 to 55°C (-13 to 131°F)
Storage Temperature: -25 to 70°C (-13 to 158°F)
Wire Connection: Copper wire only, 60/75°C
Terminal Size Acceptability: Top 18-3 AWG, Bottom18-2 AWG
Tightening Torque Minimum/Maximum: 17.7/ 22lb-in. (2/2.2 Nm)
Terminal Protection Degree: IP20
Dimensions:
Height: 105.3mm (4.15")
Width: One Pole 17.5mm (0.69"), 2 Pole 35mm (1.38"), 3 Pole 52.5 mm (2.07")
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