DIN Rail Mount Circuit Breakers |
| R Series UL1077 Supplementary Protectors |
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Circuit Breakers, UL 1077 Supplementary Protectors
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$
48.00
AU-3B30UR
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DIN Rail Mounted
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17.5 mm (0.69") Width per Pole
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Thermal Magnetic Overcurrent Protection
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0.5 - 60 A, 480Y/277 Vac, 50/60 Hz
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10 kA Short Circuit Interrupting Capacity
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UL Recognized E137915
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Dual Connection Terminals, Box Clamp and Ring Tongue/Forked Terminals
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Marking Area with Clear Cover
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View related products - Power Products
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While UL489 branch circuit breakers protect
feeder or branch circuits, R Series UL1077
supplementary protectors are made to trip
faster than a standard UL489 circuit breaker,
therefore providing additional protection for
specific devices. Supplementary protectors
provide critical protection in applications
where branch circuit protection is not required,
or is already provided by a separate device.
R Series supplementary protectors are
available in one, two, and three-pole
configurations and up to 20 different current
ratings from 0.5A to 60A and can safely
be used in applications up to 480Y/277
Vac with a 10 kA short circuit withstand
Rating.
Three different trip characteristics,
including B, C and D curves,
give you the ability to configure the exact
protection scheme you require.
B-Trip Protectors
Include business equipment, wiring
protection, lighting, appliances, control
circuits and some electronic applications.
Relatively long thermal trip delay but low
magnetic trip point.
C-Trip Protectors
Include lighting, wiring protection,
appliances, business equipment, and control
circuit applications. Relatively long thermal
trip delay and medium magnetic trip point.
D-Trip Protectors
Include control transformers, power supplies
and reactive loads. Relatively long thermal
trip delay and very high magnetic trip point.
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
Voltage Rating: 480Y/277 Vac
Short Circuit Withstand Rating (UL - Ratings):
0.5-10A (RC): 10kA with no back-up fuse
12-60A (RC): 10kA with UL-listed Class J back-up fuse; 5kA with no back-up fuse
Calibration Temperature: 30°C (86°F)
Operating Temperature: -25 to 55°C (-13 to 131°F)
Storage Temperature: -40 to 70°C (-40 to 158°F)
Terminal Size Acceptability:
Top: 18-3 AWG
Bottom: 18-2 AWG (line/load reversible)
Tightening Torque (min/max): 17.7/25 lb-in. (2/2.8 Nm)
Terminal Protection Degree: IP20
Vibration Resistance: ≥15g
Dimensions:
Height: 89.3 mm (3.51")
Width:
One Pole: 17.5 mm (0.69")
2 Pole: 35 mm (1.38")
3 Pole: 52.5 mm (2.07")
Depth:68.4 mm (2.69") from DIN rail
Use the "Part Number Builder" below for product selection.
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† All dollar amounts on this site are shown in US currency.
Note: (*) Insert “B” for b-curve, “C” for c-curve and “D” for d-curve.
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Part Number Builder |
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Option Descriptions
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(1)
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Poles
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Select
-1 for 1 Pole
-2 for 2 Poles
-3 for 3 Poles
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(2)
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Curve Type
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Select
B for b-curve
C for c-curve
D for d-curve
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(3)
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Rated Current
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Select
05UR for 0.5A
1UR for 1.0A
2UR for 2.0A
3UR for 3.0A
4UR for 4.0A
5UR for 5.0A
6UR for 6.0A
8UR for 8.0A
10UR for 10A
12UR for 12A
13UR for 13A
15UR for 15A
16UR for 16A
20UR for 20A
25UR for 25A
30UR for 30A
32UR for 32A
40UR for 40A
50UR for 50A
60UR for 60A
63UR for 63A
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NOTE: All combinations may not be valid, check spec sheet for valid part numbers.
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