Datasheet
BR & SU Series
UL489/CSA C22.2 No.5-02 (Branch rated) Circuit Breakers
UL1077/CSA C22.2 No.235 Supplementary Protectors
NEW
Compared to traditional fuse installation, the UL489/CSA C22.2
No.5-02, UL1077/CSA C22.2 No.235 compliant circuit breakers
listed here assist with the complex task of selecting correct types
and characteristics and offer a less bulky installation solution.
Our range of miniature, molded-case circuit breakers, in combination
with our accessories for factory or on-site installation, offer enhanced
control and monitoring capabilities. Installation kits include all parts
and instructions to make the on-site job easy.
We supply UL489/CSA C22.2 No.5-02 and UL1077/CSA C22.2
No.235 compliant 1, 2 and 3-pole-type circuit breakers from 0.5 to
60 Ampere and with type C and D characteristics.
Attachments such as neutral switches, auxiliary contacts and shunt
trips are also available for this system. All accessories for modern
busbar installations are available in compliance with the relevant
UL standards.
Weidmuller, Canada
10 Spy Court
Markham, Ontario L3R 5H6
Telephone: (800) 268-4080
Facsimile: (877) 300-5635
Email: info1@weidmuller.ca
Website: www.weidmuller.ca
Weidmuller, Mexico
Blvd. Hermanos Serdán 698,
Col. San Rafael Oriente
Puebla, Puebla, Mexico
C.P. 72029
Telephone: 01 222 2686267
Facsimile: 01 222 2686219
Email: clientes@weidmuller.com.mx
Website: www.weidmuller.com.mx
Weidmuller, United States
821 Southlake Blvd.
Richmond, Virginia 23236
Telephone: (800) 849-9343
Facsimile: (804) 379-2593
Email: info@weidmuller.com
Website: www.weidmuller.com
Branch Circuit Breakers
Application Schematic
Power Circuit
UL489
UL489
Power Circuit
Control Circuit
Control Transformer
UL489
Power
Transformer
UL1077
UL1077
Power
Transformer
UL489
UL489
UL489
UL489
UL1077
UL489
M
Outlet
Fixed mounted
cabinet /panel heater
(resistive loads)
M
Sizing of main branch circuit protector according
to table 430.52 in NEC
®
•
Dual Element (Time Delay) Fuse
Maximum fuse
= largest motor FLA x 175 %
+ FLA of all other motors and general loads in group
•
Inverse Time Breaker
Maximum circuit breaker = largest motor FLA x 250 %
+ FLA of all other motors and general loads in group
(for other fuse/breaker types see table 430.52)
2
Branch Circuit Breakers
Branch Circuit Breakers
AC Version, C and D Characteristics
Single Pole - D Curve
Current Ratings
(amps)
0.5
1
2
3
5
10
15
20
25
30
40
50
60
Part No.
BR1D05AC
BR1D1AC
BR1D2AC
BR1D3AC
BR1D5AC
BR1D10AC
BR1D15AC
BR1D20AC
BR1D25AC
BR1D30AC
BR1D40AC
BR1D50AC
BR1D60AC
Description
Branch / 1P Cct Brkr / D Curve / 0.5A
Branch / 1P Cct Brkr / D Curve / 1A
Branch / 1P Cct Brkr / D Curve / 2A
Branch / 1P Cct Brkr / D Curve / 3A
Branch / 1P Cct Brkr / D Curve / 5A
Branch / 1P Cct Brkr / D Curve / 10A
Branch / 1P Cct Brkr / D Curve / 15A
Branch / 1P Cct Brkr / D Curve / 20A
Branch / 1P Cct Brkr / D Curve / 25A
Branch / 1P Cct Brkr / D Curve / 30A
Branch / 1P Cct Brkr / D Curve / 40A
Branch / 1P Cct Brkr / D Curve / 50A
Branch / 1P Cct Brkr / D Curve / 60A
Single Pole - C Curve
Part No.
BR1C05AC
BR1C1AC
BR1C2AC
BR1C3AC
BR1C5AC
BR1C10AC
BR1C15AC
BR1C20AC
BR1C25AC
BR1C30AC
BR1C40AC
BR1C50AC
BR1C60AC
Description
Branch / 1P Cct Brkr / C Curve / 0.5A
Branch / 1P Cct Brkr / C Curve / 1A
Branch / 1P Cct Brkr / C Curve / 2A
Branch / 1P Cct Brkr / C Curve / 3A
Branch / 1P Cct Brkr / C Curve / 5A
Branch / 1P Cct Brkr / C Curve / 10A
Branch / 1P Cct Brkr / C Curve / 15A
Branch / 1P Cct Brkr / C Curve / 20A
Branch / 1P Cct Brkr / C Curve / 25A
Branch / 1P Cct Brkr / C Curve / 30A
Branch / 1P Cct Brkr / C Curve / 40A
Branch / 1P Cct Brkr / C Curve / 50A
Branch / 1P Cct Brkr / C Curve / 60A
Double Pole - D Curve
Current Ratings
(amps)
0.5
1
2
5
10
15
20
25
30
40
50
60
Part No.
BR2D05AC
BR2D1AC
BR2D2AC
BR2D5AC
BR2D10AC
BR2D15AC
BR2D20AC
BR2D25AC
BR2D30AC
BR2D40AC
BR2D50AC
BR2D60AC
Description
Branch / 2P Cct Brkr / D Curve / 0.5A
Branch / 2P Cct Brkr / D Curve / 1A
Branch / 2P Cct Brkr / D Curve / 2A
Branch / 2P Cct Brkr / D Curve / 5A
Branch / 2P Cct Brkr / D Curve / 10A
Branch / 2P Cct Brkr / D Curve / 15A
Branch / 2P Cct Brkr / D Curve / 20A
Branch / 2P Cct Brkr / D Curve / 25A
Branch / 2P Cct Brkr / D Curve / 30A
Branch / 2P Cct Brkr / D Curve / 40A
Branch / 2P Cct Brkr / D Curve / 50A
Branch / 2P Cct Brkr / D Curve / 60A
Double Pole - C Curve
Part No.
BR2C05AC
BR2C1AC
BR2C2AC
BR2C5AC
BR2C10AC
BR2C15AC
BR2C20AC
BR2C25AC
BR2C30AC
BR2C40AC
BR2C50AC
BR2C60AC
Description
Branch / 2P Cct Brkr / C Curve / 0.5A
Branch / 2P Cct Brkr / C Curve / 1A
Branch / 2P Cct Brkr / C Curve / 2A
Branch / 2P Cct Brkr / C Curve / 5A
Branch / 2P Cct Brkr / C Curve / 10A
Branch / 2P Cct Brkr / C Curve / 15A
Branch / 2P Cct Brkr / C Curve / 20A
Branch / 2P Cct Brkr / C Curve / 25A
Branch / 2P Cct Brkr / C Curve / 30A
Branch / 2P Cct Brkr / C Curve / 40A
Branch / 2P Cct Brkr / C Curve / 50A
Branch / 2P Cct Brkr / C Curve / 60A
Triple Pole - D Curve
Current Ratings
(amps)
1
2
5
10
15
20
25
30
40
50
60
Part No.
BR3D1AC
BR3D2AC
BR3D5AC
BR3D10AC
BR3D15AC
BR3D20AC
BR3D25AC
BR3D30AC
BR3D40AC
BR3D50AC
BR3D60AC
Description
Branch / 3P Cct Brkr / D Curve / 1A
Branch / 3P Cct Brkr / D Curve / 2A
Branch / 3P Cct Brkr / D Curve / 5A
Branch / 3P Cct Brkr / D Curve / 10A
Branch / 3P Cct Brkr / D Curve / 15A
Branch / 3P Cct Brkr / D Curve / 20A
Branch / 3P Cct Brkr / D Curve / 25A
Branch / 3P Cct Brkr / D Curve / 30A
Branch / 3P Cct Brkr / D Curve / 40A
Branch / 3P Cct Brkr / D Curve / 50A
Branch / 3P Cct Brkr / D Curve / 60A
Triple Pole - C Curve
Part No.
BR3C1AC
BR3C2AC
BR3C5AC
BR3C10AC
BR3C15AC
BR3C20AC
BR3C25AC
BR3C30AC
BR3C40AC
BR3C50AC
BR3C60AC
Description
Branch / 3P Cct Brkr / C Curve / 1A
Branch / 3P Cct Brkr / C Curve / 2A
Branch / 3P Cct Brkr / C Curve / 5A
Branch / 3P Cct Brkr / C Curve / 10A
Branch / 3P Cct Brkr / C Curve / 15A
Branch / 3P Cct Brkr / C Curve / 20A
Branch / 3P Cct Brkr / C Curve / 25A
Branch / 3P Cct Brkr / C Curve / 30A
Branch / 3P Cct Brkr / C Curve / 40A
Branch / 3P Cct Brkr / C Curve / 50A
Branch / 3P Cct Brkr / C Curve / 60A
3
Branch Circuit Breakers
Accessories for Branch Circuit Breakers
Module
Type of Contact
Contacts
Weight
g / Each
35
40
Packing
Unit
6
6
Part No.
Auxiliary contact, for mounting on the right
½
½
1 auxiliary contact
2 auxiliary contacts
1NO
1NO + 1NC
BAU10
BAU11
14
BAU10
13
24 12
BAU11
23
11
Standards
Rated operating currents
Minimum contact load
Conductor cross sections
Type of conductor *)
Single wire
Stranded wire
Stranded wire with ferrule
Torque
*) Stripped length 8 - 9 mm
UL489 and CSA C22.2 No. 5-02
10 A /240 V AC
3 A / 110 V DC
1 A / 220 V DC
1 mA at 24 V DC
min.
1.0 mm (AWG18)
2
max.
2.5 mm
2
(AWG14)
1.5 mm
2
(AWG16)
1.5 mm
2
(AWG16)
1.0 mm
2
(AWG18)
1.0 mm
2
(AWG18)
max. 0.8 Nm (7 lb.in)
( ) values in brackets = measurement units for North America
Lock-off/Lock-on device
Weight
g / Each
2
Packing
Unit
10
Part
No.
LD10
4
Branch Circuit Breakers
Accessories for Branch Circuit Breakers
Mounting Instructions of Accessories
Applies to BNS... and BST:
The accessory devices BNS... and BST can be installed on the
right or left.
Mounting
1. Bring the blue knobs of all devices into the “OFF” position
2. Remove grey cover from the switching device and
attachment
3. Insert drive plate between the switching device and BNS...
or BST
4. Insert connecting pin into the knob (insertion depth
approx. 7 mm)
5. Combine switching device and BNS... or BST
6. Screw the devices together (observe correct screw length)
Applies to BAU...
The auxiliary contact BAU... can only be installed
on the right.
Installation
1. Flick the blue switches of all devices to the “OFF” position
2. Remove the grey cover from the switching device and
attachment
3. Combine switching device and BAU...
4. Insert connection screws and connect the two devices by
turning the screws 90°
5. After installation, close and open to check correct operation
Applies to all switching devices
BNS..., BST and BAU...
The load and mains can be connected into either the top or
bottom (Line/Load Reversible).
Design of the terminals
• Optical detection of screw position
• Increased breaking resistance if the screwdriver becomes
jammed
• Universal connecting terminals, suitable for connecting all
known cable lugs such as ring or forked cable lugs and pin
terminals
• Ring cable lugs can be connected by opening the flap and
removing the connecting screw
• Can also be used for applications that require ring cable
lugs (e.g. nuclear power stations)
• DIN EN 50274, VDE 0660-514 compliant protection
against contact with live parts is fully guaranteed
Mounting
screw 34 mm
(see accessories
page 6)
Neutral switch/
Shunt trip
Switching
device
Neutral switch/
Shunt trip
Auxiliary
contact
Switching
device
Auxiliary
contact
1. Box terminal for solid
conductors flexible
conductors with or
without cable lug
2. Screw terminal for
forked cable lug
3. Screw terminal for ring
cable lug (ring tongue)
5
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