MS-Series
MS-Series
CIRCUIT BREAKER
Designed and tested to operate flawlessly in the harshest of environments, the MS-Series sealed toggle circuit
breaker is ideally suited for COTS (commercial off the shelf) military applications. Our space saving envelope
meets IP68 requirements and features a durable metal and sealed mounting bushing with MIL-PRF-39019F
ingress protection when mounted in a panel.
This class-leading, affordable circuit breaker was designed in accordance with the requirements of MIL-
PRF-55629 and MIL STD 202, making it the best choice for those applications where shock, vibration, moisture
resistance, salt spray and thermal shock are of the utmost consideration. The MS-Series’ compact size and
reliability make it ideal for crucial communication equipment and other mission critical components.
1-3 poles; 0.02-30 amps; 65VDC, 240VAC, 120/240VAC; UL, cUL recognized & TUV pending.
Eco-Friendly
Resources:
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Product Highlights:
Sealed Toggle Actuator
MIL-PRF-39019F Ingress Protection
MIL-PRF-55629 and MIL STD 202
Compliant
Compact Design
Typical Applications:
COTS Military
• Communication Equipment
Off Highway Equipment
• Construction, Mining & Agriculture
Generators & Power Supplies
Harsh Environment Applications
Carling Technologies, Inc.
60 Johnson Avenue, Plainville, CT
06062
Email:
sales
@
carlingtech.com
Application Support:
team2
@
carlingtech.com
Phone:
860.793.9281
Fax:
860.793.9231
www.carlingtech.com
2 | MS-Series Circuit Breaker - Design Features
MS-Series
SEALS
DESIGN FEATURES
IP68 Designed and tested to comply
with MIL-PRF-39019F Ingress Protection
Max performance in compact size: 0.20-30
Amps; 65 VDC, 240 VAC 120/240 VAC
COMPACT SIZE
1.375 in
[34.93 mm]
0.65 in
[16.51 mm]
2.158 in
[54.81 mm]
Meet UL 1077 Spacing Requirements
TERMINAL BARRIERS
Provides Breaker Status Indication
OPTIONAL AUXILIARY SWITCH
Email: sales
@
carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231
www.carlingtech.com
MS-Series Circuit Breaker - General Specifications | 3
Electrical Tables
Table A:
Lists UL & cUL Configuration & Performance Capabilities
MS-SERIES TABLE A: COMPONENT SUPPLEMENTARY PROTECTORS
Short Circuit
Capacity (Amps)
1
UL / cUL
Circuit Configuration Max Rating Frequency Phase General Purpose Amps Poles Breaking
U1
U3
65
DC
---
0.02 - 30
1
3000
300
Series
240
50 / 60
1
0.02 - 30
1, 2
2000
300
120 / 240
50 / 60
1
0.02 - 30
2 or 3
2000
300
Voltage
Current Rating
Notes:
1 Short Circuit Current Rating (SC) Codes — The short-circuit current rating, followed by a letter and number designating the test conditions
and any calibration following the short-circuit test as defined below:
U - Indicates that the short circuit test was performed without a series fuse
1 - Indicates that a re-calibration was not performed as part of the short circuit testing
3 - Indicates that the protector has proven to be suitable for further use after the short circuit test
Re-calibration, dielectric strength and voltage withstand tests were performed after the short circuit testing
Electrical
Current Ratings
Voltage Rating
Short Circuit Rating
Auxiliary Switch Rating
Dielectric Strength
Insulation Resistance
Time Delay
Impedance
.02 - 30 Amps
65VDC, 240VAC, 120/240VAC
See Table A
5A @ 125VAC,
3A @ 32VDC,
.1A @ 125VAC, 32VDC
UL,CSA 1500V, 50/60 Hz for one
minute between all electrically
isolated terminals.
Minimum of 100 Megohms @
500VDC
See delay curve
Mechanical
Current Ratings
Trip Free
Trip Indication
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.
0.20 - 30.0
25%
Physical
Dimensions
Number of Poles
Weight
1-3 poles
Approximately 1.8 oz (50 G) per
pole
See form & fit drawing
Agency Certifications
UL Standard 1077
CUL Standard C22.2
*Manufacturer reserves the right to change product specification without prior notice.
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
are non-nutrient to fungus
growth.
Environmental
Email: sales
@
carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231
www.carlingtech.com
4 | MS-Series Circuit Breaker - Ordering Scheme
1
Series
M S 1
2
Actuator
3
Poles
4
Circuit
B
5
Frequency
& Delay
14
6
Current
Rating
615
7
Terminal
C
1
2
3
C
E
L
8
Actuator
Color
1 C B
9
10
Front
Legend
Panel
Plate
Hardware
11
Bushing
Color
A 0A A
12
Voltage
Code
13
Agency
Approval
1 SERIES
M
7 TERMINAL
2 ACTUATOR
S
Sealed Toggle
Push-On 0.250 Tab (QC)
Screw 8-32 (Upturned Lugs)
Screw 8-32 (Bus Type)
Screw Terminal M4 (Upturned Lugs)
Screw Terminal M4 (Bus Type)
Solder Lug
3 POLES
1
One
2
Two
3
Three
8 ACTUATOR & MARKING COLOR
1
Dull Metallic
4 CIRCUIT
A
B
M
9
Switch Only (no coil)
1,2
Series Trip (current)
Series Trip (current) Aux switch .110 QC x 0.20 QC (silver contacts)
Series Trip (current) Aux switch .110 QC x 0.20 QC (gold contacts)
9 FRONT PANEL HARDWARE
A
B
C
F
G
03
10
12
14
20
22
24
30
5 FREQUENCY & DELAY
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
DC, 50/60 Hz, Switch Only
1
DC, Instantaneous
DC, Short
DC, Medium
50/60 Hz Instantaneous
50/60 Hz Short
50/60 Hz Medium
DC, 50/60 Hz Instantaneous
32
34
62
64
72
74
92
94
DC, 50/60 Hz Short
DC, 50/60 Hz Medium
50/60 Hz Short, Hi-Inrush
4
50/60 Hz Medium, Hi-Inrush
4
DC, Short, High-Inrush
4
DC, Medium, High-Inrush
4
DC, 50/60 Hz Short, Hi-Inrush
4
DC, 50/60 Hz Medium, In-rush
4
10 LEGEND PLATE
A
B
C
D
E
F
G
No Legend Plate
On-Off Vertical
On-Off Horizontal
I-O Vertical
I-O Horizontal
Dual Vertical
Dual Horizontal
6 CURRENT RATING (AMPERES)
220
225
230
235
240
245
250
255
260
265
270
275
280
285
290
CODE
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
AMPERES
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 / Multipole Version
12 VOLTAGE CODE
0A
0D
0C
0N
17
65 VDC
240 VAC
120/240 VAC
3
65 VDC / 120/240 VAC
3
65 VDC / 240 VAC
13 AGENCY APPROVAL
A
B
C
Without approvals
UL Recognized
UL & cUL Recognized
Notes:
1
Series code “A” only available with delay code “03”
Only available when tied to a protected pole
2
Requires a 2 or 3 pole device
3
4
Only available without agency approvals (Approval Code A)
Email: sales
@
carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231
www.carlingtech.com
MS-Series Circuit Breaker - Form & Fit Drawings | 5
Form
&
Fit
Notes:
1
All dimensions are in inches [millimeters].
2
Tolerance ±.020 [.51] unless otherwise specified.
Email: sales
@
carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231
www.carlingtech.com
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