L-frame circuit breakers are available as
individual components (Frame, Trip
Unit, Terminals), or factory assembled
complete breakers. OPTIM circuit
breakers are available as factory
assembled only.
●
L-frame circuit breakers are
suitable for reverse feed use.
Technical Data and Specifications
CSA C22.2 No. 5 and UL489 Interrupting Capacity Ratings
42Series C and Special Application Moulded Case Circuit Breakers
PG01200001K—October 2011
Page 3
Series C Moulded Case Circuit Breakers
70-600 Amperes L-Frame
L-3
Catalogue Numbering System
This information is presented only as an aid to understanding Catalogue numbers. It is not to be used to build Catalogue numbers for
circuit breakers or trip units.
Thermal-Magnetic Trip Unit Catalogue NumberCircuit Breaker/Frame Catalogue Number
LD
3 600 FLT 3 400 T
Circuit
Breaker/
Frame Type
LD
HLD
LDC
CLD
CHLD
CLDC
“VISA option is available. CSA listed only.
Number
of Poles
2: 2 Poles
3: 3 Poles
4: 4 Poles
Circuit
Breaker/Frame
Ampere Rating
300
350
400
450
500
600
F:Frame Only
WK: High Magnetic Moulded
V:50°C (Thermal-Magnetic
FS: VISA - Frame only.
SKW: VISA - High Magnetic
Suffix
Case Switch without
terminals
Trip Units Only)
Moulded Case Switch
without terminals
Trip Unit Type
LT:Thermal-
Magnetic
Number
of Poles
2: 2 Poles
3: 3 Poles
4: 4 Poles
OPTIM Circuit Breaker/Frame Catalogue NumberDigitrip RMS 310 Trip Unit Catalogue Number
Circuit
Breaker/
Frame
Type
LD
HLD
LDC
CLD
CHLD
CLDC
Number
of Poles
3: 3 Poles
LD
3 125 T5 7 W
Circuit
Breaker/
Frame
Ampere
Rating
125
(Available on
Model 1050
only)
250
(Available on
Model 1050
only)
400
600
Trip Model
T5 –
Model 550
T10 –
Model 1050
Trip Type
2 – LSI
(550 only)
6 – LSIG
7 – LSIA
Suffix
W:Without
Terminals
Trip Unit Type
LES:Electronic
LES
Number of
Poles
3: 3 Poles
4: 4 Poles
Trip Unit/
Rating Plug
Ampere
Rating
300
350
400
450
500
600
T: Trip Unit Thermal-Magnetic
TV: 50°C Calibration (Thermal-
3 600 LS P
Trip Unit
Ampere
Rating
600
Suffix
LS
LSI
LSG
LSIG
Suffix
Fixed Thermal Adjustable
Magnetic
Magnetic Trip Units Only)
Suffix
P: 100% Protected
Neutral on 4-Pole
Trip Unit
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
Dimensions/Weights
Dimensions, Inches (mm)
Number of PolesWidthHeightDepth
2, 38.25
411
Approximate Shipping Weight, Lbs. (kg)
Complete BreakerFrame OnlyTrip Unit
Breaker
Type
LD, HLD,
LDC
Series C and Special Application Moulded Case Circuit Breakers
100% Rated Types CLD, CHLD, and CLDC Electronic Circuit Breakers with Interchangeable Trip Units
The CEC allows the breaker to be rated at 100% of its frame size in an assembly, provided that 90°C wire is applied at the 75°C
ampacity. All 100% rated circuit breakers have electronic trip units. Order as individual components: Breaker Frame, Trip Unit, Rating
Plug and Terminals.
Circuit Breaker Frame Only ➀Digitrip RMS 310 Trip Unit Only ➁Digitrip RMS 310 Rating Plug Only
L– Adjustable Long Delay Pickup (By Adjustable Rating Plug)
S– Adjustable Short Delay Pickup with Fixed Short Delay
2
Time (I
I– Adjustable Instantaneous Pickup by Setting Short Delay
G– Adjustable Ground Fault Pickup with Adjustable Ground
Adjustable
Short Delay
Pickup with
Fixed Short
Delay Time
(I
Response)
t Response) or Adjustable Short Delay Time (Flat Response)
Time to Instantaneous
Fault Delay (Flat Response)
Independently
Adjustable
Short Delay
Pickup and
2
t
Short Delay
Time (Flat
Response)
Adjustable Short
Delay Pickup
with Fixed Short
Delay Time (I
Response) and
Ground Fault
Protection
2
t
3-pole LES Trip Units are for use in 3-pole frame only.
Trip unit includes unprotected right neutral pole. For 100% protected right pole neutral, add “P” to
catalogue number. ie. LES4600LSP
Individually packed.
Terminal kits contain one terminal for each pole and one terminal cover.
PG01200001K—October 2011
Independently
Adjustable Short
Delay Pickup and
Short Delay Time
(Flat Response)
and Ground Fault
Protection
Moulded case switches are used as compact switches in applications requiring high
current switching capabilities. Moulded case switches are constructed of circuit breaker
components and are of the high instantaneous automatic type. Moulded case switches
are listed in accordance with CSA C22.2 No. 5 and UL 489, suitable for reverse feed
use, and as 100% rated devices.
600 Vac Maximum, 250 VdcStandard Terminals Only
Maximum
Continuous
Ampere Rating
@ 40°C
2-Pole
600LD2600WKHLD2600WK2TA603LDK
3-Pole
600LD3600WKHLD3600WK3TA603LDK
4-Pole
600LD4600WKHLD4600WK4TA603LDK
Note: Note: Moulded Case Switch may trip above 6000 amperes.
Instruction Leaflet Number 29C105 for Moulded Case Switch
Moulded Case
Switch
Type
LD2,3,465352522
HLD2,3,4100653525
MCS Only
Without Line and Load Terminals
Catalogue Number
Number
of
Poles
Unfused Short Circuit Withstand Rating (Symmetrical Amperes) (kA)
Volts Ac (50/60 Hz)Volts DC
240480600250
See Section Page Number
L-11 for Optional Terminals
➁
➁
➁
49
49
49
49
49
49
49
49
49
49
49
49
49
49
When a “VISA” type Moulded Case Switch is required, change the suffix of the MCS catalogue
number from “WK” to “SKW”. ie. LD3600SKW
Terminal kits contain one terminal for each pole and one terminal cover.
46Series C and Special Application Moulded Case Circuit Breakers PG01200001K—October 2011
Page 7
Series C Moulded Case Circuit Breakers
70-600 Amperes L-Frame
L-7
Digitrip OPTIM Electronic Circuit Breaker with Interchangeable Rating Plug
Order as individual components: Breaker Frame (which includes Trip Unit), Rating Plug, Terminals.
Circuit Breaker Frame Only
L – Adjustable Long Delay Pickup (I
S – Adjustable Short Delay Pickup with Adjustable Short Delay Time (I2t or Flat Response)
I – Adjustable Instantaneous Pickup
G – Adjustable Ground Fault Pickup with Adjustable Ground Fault Time (I
Maximum
Continuous
Ampere
Rating
@ 40°C
3-Pole Standard Interrupting Capacity 600 Volt Ac Rated 25 kAIC @ 600 Vac
Instruction Leaflet Number 29C105 for Breaker; 29C891 for OPTIM Trip Unit
A – Adjustable Ground Fault Alarm with Adjustable Ground Fault Time (I
OPTIM 550
LSILSIGLSIALSIGLSIA
Catalogue Number
➁OPTIM 1050 ➂➃
) with Adjustable Long Delay Time (I2t or I4t Response) ➀
r
2
t or Flat Response)
2
t or Flat Response)
Digitrip OPTIM
Rating Plug Only
Ampere
RatingFixed Rating Plug
ORPL125A070
90
ORPL125A090
100
ORPL125A100
110
ORPL125A110
125
ORPL125A125
ORPL025A125
150
ORPL025A150
175
ORPL025A175
200
ORPL025A200
225
ORPL025A225
250
ORPL025A250
ORPL40A200
225
ORPL40A225
250
ORPL40A250
300
ORPL40A300
350
ORPL40A350
400
ORPL40A400
ORPL60A300
350
ORPL60A350
400
ORPL60A400
500
ORPL60A500
600
ORPL60A600
ORPL125A070
90
ORPL125A090
100
ORPL125A100
110
ORPL125A110
125
ORPL125A125
ORPL025A125
150
ORPL025A150
175
ORPL025A175
200
ORPL025A200
225
ORPL025A225
250
ORPL025A250
ORPL40A200
225
ORPL40A225
250
ORPL40A250
300
ORPL40A300
350
ORPL40A350
400
ORPL40A400
ORPL60A300
350
ORPL60A350
400
ORPL60A400
500
ORPL60A500
600
ORPL60A600
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
Long delay I4t response selection limits short delay time to flat response.
Zone Interlocking, PowerNet, or both features can be added at the factory by adding Suffixes ZG, PN or ZGP respectively to above Catalogue Number. (A factory assembly charge will be applied,
please refer to the Breaker Accessories/Modifications section in the MCCB Price List for details)
One Form C auxiliary switch and one Form C bell alarm switch supplied with breaker as standard on model 1050.
Factory sealed.
Series C and Special Application Moulded Case Circuit Breakers PG01200001K—October 2011 47
49
49
49
49
Page 8
L-8
Series C Moulded Case Circuit Breakers
70-600 Amperes L-Frame
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
Digitrip OPTIM Electronic Circuit Breaker with Interchangeable Rating Plug
Order as individual components: Breaker Frame (which includes Trip Unit), Rating Plug, Terminals.
Circuit Breaker Frame Only
L – Adjustable Long Delay Pickup (I
S – Adjustable Short Delay Pickup with Adjustable Short Delay Time (I2t or Flat Response)
I – Adjustable Instantaneous Pickup
G – Adjustable Ground Fault Pickup with Adjustable Ground Fault Time (I
Maximum
Continuous
Ampere
Rating
@ 40°C
3-Pole Ultra High Interrupting Capacity Current Limiting 600 Volt Ac Rated 50 kAIC @ 600 Vac
Instruction Leaflet Number 29C105 for Breaker; 29C891 for OPTIM Trip Unit
A – Adjustable Ground Fault Alarm with Adjustable Ground Fault Time (I
OPTIM 550
LSILSIGLSIALSIGLSIA
Catalogue Number
➁OPTIM 1050 ➂➃
) with Adjustable Long Delay Time (I2t or I4t Response) ➀
r
2
t or Flat Response)
2
t or Flat Response)
Digitrip OPTIM
Rating Plug Only
Ampere
RatingFixed Rating Plug
ORPL125A070
90
ORPL125A090
100
ORPL125A100
110
ORPL125A110
125
ORPL125A125
ORPL025A125
150
ORPL025A150
175
ORPL025A175
200
ORPL025A200
225
ORPL025A225
250
ORPL025A250
ORPL40A200
225
ORPL40A225
250
ORPL40A250
300
ORPL40A300
350
ORPL40A350
400
ORPL40A400
ORPL60A300
350
ORPL60A350
400
ORPL60A400
500
ORPL60A500
600
ORPL60A600
49
49
49
49
49
49
49
49
49
49
49
49
49
Long delay I4t response selection limits short delay time to flat response.
Zone Interlocking, PowerNet, or both features can be added at the factory by adding Suffixes ZG, PN or ZGP respectively to above Catalogue Number.
One Form C auxiliary switch and one Form C bell alarm switch supplied with breaker as standard on model 1050.
Factory sealed.
48Series C and Special Application Moulded Case Circuit Breakers PG01200001K—October 2011
Page 9
Series C Moulded Case Circuit Breakers
70-600 Amperes L-Frame
L-9
100% Rated Digitrip OPTIM Circuit Breakers with Interchangeable Rating Plug
Order as individual components: Breaker Frame (which includes Trip Unit), Rating Plug, Terminals.
Circuit Breaker Frame Only
L – Adjustable Long Delay Pickup (I
S – Adjustable Short Delay Pickup with Adjustable Short Delay Time (I2t or Flat Response)
I – Adjustable Instantaneous Pickup
G – Adjustable Ground Fault Pickup with Adjustable Ground Fault Time (I
Maximum
Continuous
Ampere
Rating
@ 40°C
3-Pole Standard Interrupting Capacity 600 Volt Ac Rated 25 kAIC @ 600 Vac
Order as individual components: Breaker Frame (which includes Trip Unit), Rating Plug, Terminals.
Circuit Breaker Frame Only
L – Adjustable Long Delay Pickup (I
S – Adjustable Short Delay Pickup with Adjustable Short Delay Time (I2t or Flat Response)
I – Adjustable Instantaneous Pickup
G – Adjustable Ground Fault Pickup with Adjustable Ground Fault Time (I
Maximum
Continuous
Ampere
Rating
@ 40°C
3-Pole Ultra High Interrupting Capacity Current Limiting 600 Volt Ac Rated 50 kAIC @ 600 Vac
Instruction Leaflet Number 29C105 for Breaker; 29C891 for OPTIM Trip Unit
A – Adjustable Ground Fault Alarm with Adjustable Ground Fault Time (I
OPTIM 550
LSILSIGLSIALSIGLSIA
Catalogue Number
➁OPTIM 1050 ➂➃
) with Adjustable Long Delay Time (I2t or I4t Response) ➀
r
2
t or Flat Response)
2
t or Flat Response)
Digitrip OPTIM
Rating Plug Only
Ampere
RatingFixed Rating Plug
ORPL125A070
90
ORPL125A090
100
ORPL125A100
110
ORPL125A110
125
ORPL125A125
ORPL025A125
150
ORPL025A150
175
ORPL025A175
200
ORPL025A200
225
ORPL025A225
250
ORPL025A250
ORPL40A200
225
ORPL40A225
250
ORPL40A250
300
ORPL40A300
350
ORPL40A350
400
ORPL40A400
ORPL60A300
350
ORPL60A350
400
ORPL60A400
500
ORPL60A500
600
ORPL60A600
49
49
49
49
49
49
49
49
49
49
49
49
49
Long delay I4t response selection limits short delay time to flat response.
Zone Interlocking, PowerNet, or both features can be added at the factory by adding Suffixes ZG, PN or ZGP respectively to above Catalogue Number.
One Form C auxiliary switch and one Form C bell alarm switch supplied with breaker as standard on model 1050.
Factory sealed.
50Series C and Special Application Moulded Case Circuit Breakers PG01200001K—October 2011
Page 11
Series C Moulded Case Circuit Breakers
70-600 Amperes L-Frame
L-11
Line and Load Terminals
Line and load terminals provide wire
connecting capabilities for specific
ranges of continuous current ratings and
wire types. All terminals comply with
Underwriters Laboratories, Inc.,
Standards UL486A and UL486B
and CSA Standard C22.2 No. 65. Unless
otherwise specified, L-frame circuit
breaker line and load terminals are
shipped separately for field installation.
Line and Load Terminals
Maximum Breaker
Amperes
Standard Cu/AI Pressure Terminals
400
450
500
600
Optional Copper and Cu/AI Pressure Type Terminals
600CopperCu 250-350 (2)120-150T602LD
Terminal Body
MaterialWire Type
Aluminum
Aluminum
Aluminum
Aluminum
Cu/AI
Cu/AI
Cu/AI
Cu/AI
The wire connecting terminal is secured
with two pan-head, slotted screws and
lock washers which can be checked for
the correct torque loading or retightened
from the front of the circuit breaker
before installation of the conductors.
(Applies to all styles.) The circuit breaker
line/load terminal conductors are
positioned in the conducting holes in the
wire connecting terminal and are secured
with recessed socket screws which are
tightened to the correct torque loading
from the front of the circuit breaker.
Ordering Information
L-frame circuit breakers use Cu/AI
terminals as standard. When optional
copper terminals are required, order by
Catalogue number. Specify if factory
installation is required.
Terminals with Control Wire
Termination Catalogue
Numbers