Altech UL1077 Catalog Page
Altech UL1077
Typical UL1077 Application
Control Circuit of a UL508A Panel
Disclaimer: This is just an example application. Installation should be done by a qualified
electrician under the guidance of UL/NEC®specifications..
8 9
R-Series
E301611
UL1077 Recognized
Supplementary
Protector
• DIN Rail Mounted
• 17.5mm width per pole
• Thermal Magnetic
• 480Y/277V AC, 50/60Hz
• 10kA Short Circuit
Withstand Capacity 10kA
• Positive Trip indicator
(Green - off/tripped, Red - on)
• Applications (on the load side
of Branch Circuit Protection)
include: Sensitive Electronics,
Power Supplies, Appliance
circuits, etc.
Voltage Rating
Short Circuit Withstand Rating
(UL - Ratings)
Interrupting Capacity
(IEC/EN60898/60947-2)
Calibration Temperature
Terminal Size Acceptability - min/max
Terminal Torque - min/max
Terminal Protection Degree
SHORT CIRCUIT WITHSTAND RATINGS FOR R-SERIES SUPPLEMENTARY PROTECTOR
Trip Amp UL-Listed No Backup Fuse
Curve Range Class J Fuse Required
All 0.5 - 6A 4xRC* 10kA
All
*up to nearest rated current
8 - 63A 4xRC* 5kA
480Y/277VAC
0.5-6A (RC): 10kA with no back-up fuse
8-63A (RC):
Class J bac
0.5-63A (RC): 10kA
30°C (86°F)
2.5 mm
1.5 Nm (13 lb. in.) / 2 Nm (17.5 lb . in.)
IP20
10kA with UL-listed
k-up fuse; 5kA with no back-up fuse
2
(12 AWG) / 25mm2(3 AWG)
Backup Protection
up to 10kA up to:
DC voltage rating: 48 VDC (self-certified).
Altech UL1077
9
Altech UL1077
17.5 (0.69 in.) 35 (1.38 in.) 52.5 (2.07 in.)
44 (1.73 in.)
45 (1.77 in.)
6.5 (0.26 in.)
60 (2.36 in.)
77 (3.03 in.)
96.1 (3.80 in.)
85.5 (3.37 in.)
2
10
-3
4x10
-3
4x10
-2
10
-1
0.4
1
4
10
1
4
10
40
60
10
-2
3 4 6 8 101620
Multiple of Rated Current
Seconds Time t Minutes
BB CC DDBCD
Warning!
This information should only be used as a selection guide. The use of a Miniature Circuit Breaker/Supplementary Protector
in an application with a certain Trip-Characteristic always requires prototype testing! It is the responsibility of the circuit
design engineer to select the appropriate Miniature Circuit Breaker/Supplementary Protector for his specific application.
*The value of each characteristic is shown vertically beneath its corresponding heading.
Characteristic TripBoundaries
Trip-Characteristics* Applications
B-Characteristics
C-Characteristics
D-Characteristics
Thermal Trip
Lighting
Control
Circuits
Wiring
Protection
Business
Equipment
Appliances
Transformers
Power
Supplies
Heaters
Must not
Trip>100ms
1.13xRC 1.45xRC 3xRC 5xRC
1.13xRC 1.45xRC 5xRC 10xRC
1.13xRC 1.45xRC 10xRC 20xRC
Must Trip
<1hr
Must not
Trip>100ms
Must Trip
at 100ms
Magnetic Trip
Low
Inrush
High
Inrush
Motors
General
Electronics
Reactive
Load
1 POLE 2 POLE 3 POLE
Time
versus
Current Trip Curve
For the exact trip curve,
please refer to page 21.
Dimensions in mm
side view
10
11
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