MS-Series
Circuit Breaker
Carling Technologies’ MS-Series Sealed Toggle Circuit
Breaker was designed and tested to operate flawlessly
in the harshest of environments.
Ideally suited for COTS (commercial off the shelf )
military applications, the MS-Series features a durable
metal and sealed mounting bushing with
MIL-PRF-39019F ingress protection when mounted in a
panel, and also meets IP68 requirement.
This class-leading, affordable circuit breaker was also
designed in accordance with the requirements of MIL-
PRF-55629 and MIL STD 202, making it the best choice
when the application consideration includes shock,
vibration, moisture resistance, salt spray and thermal
shock.
The MS-Series’ compact size and reliability make it
ideal for ruggedized communication equipment and
other mission critical equipment.
Features:
Sealed toggle actuator
MIL-PRF-39019F ingress protection
MIL-PRF-55629 and MIL STD 202 compliant
Compact design
COTS Military Applications:
Vehicles
Communication equipment
Generators
Power supplies
Carling Technologies, Inc.
60 Johnson Avenue • Plainville, CT 06062
Phone: (860) 793-9281 • Fax: (860) 793-9231
Email: sales@carlingtech.com • www.carlingtech.com
2 | MS-Series Circuit Breaker - General Specifications
Electrical Tables
Table A:
Lists UL & CSA Configuration & Performance Capabilities
MS-SERIES TABLE A: COMPONENT SUPPLEMENTARY PROTECTORS
VOLTAGE
CIRCUIT
CONFIGURATION
MAX.
RATING
CURRENT RATING
FULL LOAD
AMPS
GENERAL
PURPOSE
AMPS
POLES
BREAKING
SHORT CIRCUIT
CAPACITY (AMPS)
UL/CSA
WITH
BACKUP
FUSE
APPLICATION CODES
FREQ
PHASE
WITHOUT
BACKUP
FUSE
3000
8000
UL
TC1,2,OL0,U3
TC1,2,OL0,U1
CSA
50
50
DC
DC
---
---
---
---
0.02 - 30
0.02 - 30
1
1
---
---
TC1,2,OL0,U3
TC1,2,OL0,U1
Electrical
Current Ratings
Voltage Rating
Short Circuit Rating
Dielectric Strength
Insulation Resistance
Time Delay
Impedance
.20 - 30 Amps
50VDC
See Table A
UL,CSA 1500V, 50/60 Hz for one
minute between all electrically
isolated terminals
Minimum of 100 Megohms @
500VDC
See delay curve
Physical
Number of Poles
Weight
Dimensions
1 pole
Approximately 1.8 oz (50 G) per
pole
See form & fit drawing
Environmental
0.20 - 30.0
25%
Mechanical
Current Ratings
Trip Free
10,000 On-Off operations @ 6 per
minute with rated current and
voltage
Trips on short circuit and
overload, even when the actuator
is forcibly held in the “On”
position
The operating handle moves
positively to the “Off” position
when a short circuit or overload
causes the circuit breaker to trip.
Designed in accordance with requirements of specification
MIL PRF-55629 & MIL-STD-202G as follows:
Shock
Withstands 100G’s, 6ms, saw
tooth while carrying rated current
per Method 213, Condition I.
Instantaneous curves tested at
80% of rated current.
Vibration
Withstands 0.060” excursion from
10-55 Hz, and 10G’s 55-500 Hz,
at rated current per Method
204C, Test Condition A.
Instantaneous curves tested at
80% of rated current.
Salt Spray
Method 101, Condition A (90-
95% RH @ 5% NaCl Solution, 96 hrs)
Moisture Resistance
Method 106G
Thermal Shock
Method 107D, Condition A (Five
cycles @ -55°C to +25°C to
+85°C to +25°C
Operating Temperature
-40°C to +85°C
Ingress Protection Level MIL-PRF-55629C when mounted
in panel.
Other
Materials used in this product
shall be non-nutrient to fungus
growth
Agency Certifications
UL Standard 1077
CUL Standard C22.2
Trip Indication
*Manufacturer reserves the right to change product specification without prior notice.
60 Johnson Avenue • Plainville, CT 06062 • Phone: (860) 793–9281 • Fax: (860) 793–9231
Email: sales
@
carlingtech.com • www.carlingtech.com
MS-Series Circuit Breaker - Ordering Scheme | 3
1
Series
M S 1
2
Actuator
3
Poles
4
Circuit
B
5
Frequency
& Delay
14
6
Current
Rating
615
1
2
7
Terminal
3
8
Actuator
Color
1 C B
3
L
10
9
Front
Legend
Panel
Plate
Hardware
11
Brushing
Color
A
12
Agency
Approval
C
1 SERIES
M
7 TERMINAL
Push-On 0.250 Tab (QC)
Screw 8-32 w/upturned lugs
Screw 8-32 (Bus Type)
Solder Lug
2 ACTUATOR
S
Sealed Toggle
8 ACTUATOR COLOR
1
Dull Metallic
3 POLES
1
One
9 FRONT PANEL HARDWARE
A
B
C
F
G
4 CIRCUIT
B
Series Trip (current)
No Outer Panel Hardware
Hex Nut, Nickel Plated
Hex Nut, Nickel Plated with Locking Ring
Panel Dress Nut, Nickel Plated
Panel Dress Nut, Nickel Plated with Locking Ring
5 FREQUENCY & DELAY
10
12
14
DC Instantaneous
DC Short
DC Medium
10 LEGEND PLATE
A
B
C
D
E
CODE
6 CURRENT RATING (AMPERES)
AMPERES
No Legend Plate
On-Off Vertical
On-Off Horizontal
I-O Vertical
I-O Horizontal
220
225
230
235
240
245
250
255
260
265
270
275
280
285
290
0.200
0.250
0.300
0.350
0.400
0.450
0.500
0.550
0.600
0.650
0.700
0.750
0.800
0.850
0.900
295
410
512
415
517
420
522
425
527
430
435
440
445
450
455
0.950
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.50
4.00
4.50
5.00
5.50
460
465
470
475
480
485
490
495
610
710
611
711
612
712
613
6.00
6.50
7.00
7.50
8.00
8.50
9.00
9.50
10.00
10.50
11.00
11.50
12.00
12.50
13.00
614
615
616
617
717
618
619
620
622
624
625
630
14.00
15.00
16.00
17.00
17.50
18.00
19.00
20.00
22.00
24.00
25.00
30.00
11 BUSHING COLOR
A
Nickel Plated
12 AGENCY APPROVAL
A
C
Without approvals
UL & CUL Recognized
60 Johnson Avenue • Plainville, CT 06062 • Phone: (860) 793–9281 • Fax: (860) 793–9231
Email: sales
@
carlingtech.com • www.carlingtech.com
4 | MS-Series Circuit Breaker - Form & Fit Drawings
Form
&
Fit
1.375±.020
[34.93 ± 0.50]
Ø.125 X .062[1.57]
[3.18]
MINIMUM DEPTH
1.375±.020
[34.93 ± 0.50]
.656
[16.66]
MAXIMUM
.325
[8.26]
Ø .391
[9.93]
Ø.125 X .062[1.57]
[3.18]
MINIMUM DEPTH
.656
[16.66]
MAXIMUM
12°
-4°
+2°
.325
[8.26]
Ø .391
[9.93]
PANEL MOUNTING DETAIL
12°
+2°
-4°
OFF
ON
.626 ± .020
[15.90 ± 0.50]
3/8-32 HEX NUT
LOCKWASHER
ON-OFF INDICATOR PLATE
LOCKING RING
RUBBER "O" RING
12°
+2°
-4°
12°
+2°
-4°
[
ON
.626 ± .020
[15.90 ± 0.50]
.373
+.007
-.041
+0.17
9.47
-1.04
PANEL MOUNTING DETAIL
]
1.375±.020
[34.93 ± 0.50]
Ø.125 X .062[1.57]
[3.18]
MINIMUM DEPTH
OFF
.656
[16.66]
MAXIMUM
.325
[8.26]
Ø .391
[9.93]
1.634 ± .020
+.007
[41.50 ±
.373 -.041
0.50]
3/8-32 HEX NUT
LOCKWASHER
ON-OFF INDICATOR PLATE
LOCKING RING
RUBBER "O" RING
.402
[10.21]
[
9.47
+0.17
[47.75 ± 0.78]
-1.04
12°
-4°
+2°
1.880 ± .031
]
PANEL MOUNTING DETAIL
12°
+2°
-4°
OFF
.138 ± .020
[3.51 ± 0.50]
1.099 ± .020
[27.91 ± 0.50]
.375
[9.53]
ON
.626 ± .020
[15.90 ± 0.50]
Ø.170
[4.32]
.375
[9.53]
.373
LINE
LOAD
1.634 ± .020
[41.50 ± 0.50]
ON-OFF INDICATOR PLATE
3/8-32 HEX NUT
± .031
1.880
LOCKWASHER
± 0.78]
[47.75
LOCKING RING
#8 SCREW
TERMINAL
SOLDER LUG TERMINAL
+.007
9.47
-.041
+0.17
-1.04
[
]
RUBBER "O" RING
.402
[10.21]
1.634 ± .020
[41.50 ± 0.50]
1.880 ± .031
[47.75 ± 0.78]
.138 ± .020
[3.51 ± 0.50]
1.099 ± .020
[27.91 ± 0.50]
.402
[10.21]
.375
[9.53]
Ø.170
[4.32]
.375
[9.53]
#8 SCREW
TERMINAL
SOLDER LUG TERMINAL
.375
[9.53]
Ø.170
[4.32]
.375
[9.53]
LINE
LOAD
.138 ± .020
[3.51 ± 0.50]
1.099 ± .020
[27.91 ± 0.50]
#8 SCREW
TERMINAL
LOAD
SOLDER LUG TERMINAL
LINE
60 Johnson Avenue • Plainville, CT 06062 • Phone: (860) 793–9281 • Fax: (860) 793–9231
Email: sales
@
carlingtech.com • www.carlingtech.com
MS-Series Circuit Breaker - Delay Curve | 5
Delay Curve
Dual Rated AC/DC
Instantaneous
Short
Medium
REV_CB_MS_01_2014
60 Johnson Avenue • Plainville, CT 06062 • Phone: (860) 793–9281 • Fax: (860) 793–9231
Email: sales
@
carlingtech.com • www.carlingtech.com
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