molded case circuit breakers - Eaton Canada
molded case circuit breakers - Eaton Canada
molded case circuit breakers - Eaton Canada
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REPLACEMENT CAPABILITIES, Continued<br />
Type MA Accessories and Modifications<br />
For CSA, see page 41.<br />
Special Calibrations➊<br />
Special calibration price additions apply<br />
to ampere ratings not listed as standard or<br />
for ambients other than 40°C or 50°C. For<br />
frequencies other than 0-60 Hz AC (50 Hz<br />
AC minimum – 60 Hz AC maximum) refer<br />
to Cutler-Hammer. See Application Data<br />
29-160 for additional information regarding<br />
special conditions.<br />
50°C Calibration➊<br />
Add suffix “V” to catalog number for complete<br />
breaker or trip unit only, when ordering<br />
<strong>breakers</strong> to be used in 50°C ambients.<br />
Type MA <strong>breakers</strong> meet requirements for<br />
Class 21a <strong>circuit</strong> <strong>breakers</strong>, and Type HMA<br />
meet requirements for Class 23a, as defined<br />
by Federal Specification W-C-375b.<br />
March 2001<br />
MOLDED CASE CIRCUIT BREAKERS<br />
Replacement Circuit Breakers<br />
Type MAY 600-800 Amperes, 240 Volts AC, 3-Poles, Interchangeable Trip<br />
Continuous Magnetic Trip Complete Breaker Shipped as Frame, Trip Unit and Terminals➎<br />
Ampere<br />
Rating<br />
at 40°C<br />
Setting,<br />
Amperes➏<br />
Includes Pressure Type<br />
Aluminum Terminals➎<br />
Frame Only Trip Unit Only<br />
Low High Catalog Numbers<br />
3-Poles, 240 Volts AC Only<br />
600<br />
3000 6000 MAY3600<br />
MAY3800F<br />
HMA3600T<br />
700➐ 3000 6000 MAY3700<br />
MAY3800F<br />
HMA3700T<br />
800➐ 3000 6000 MAY3800<br />
MAY3800F<br />
HMA3800T<br />
Accessories and Modifications<br />
Special Calibrations➊<br />
Special calibration price additions apply to<br />
ampere ratings not listed as standard or<br />
for ambients other than 40°C or 50°C. For<br />
frequencies other than 0-60 Hz AC (50 Hz<br />
AC minimum – 60 Hz AC maximum), refer<br />
to Cutler-Hammer. See Application Data<br />
29-160 for additional information regarding<br />
special conditions.<br />
50°C Calibration➊<br />
Add suffix “V” to catalog number for complete<br />
breaker or trip unit only, when ordering<br />
<strong>breakers</strong> to be used in 50°C ambients.<br />
For CSA, see page 41.<br />
Underwriters’ Laboratories, Inc. Listed<br />
Interrupting Ratings➋<br />
Max. Volts Amperes<br />
Standard Breakers<br />
240 VAC 50,000 Asym., 42,000 Sym.<br />
480 VAC 35,000 Asym., 30,000 Sym.<br />
600 VAC 25,000 Asym., 22,000 Sym.<br />
250 VDC➌ 20,000➍<br />
MARK 75 Breakers<br />
240 VAC 75,000 Asym., 65,000 Sym.<br />
480 VAC 40,000 Asym., 35,000 Sym.<br />
600 VAC 30,000 Asym., 25,000 Sym.<br />
250 VDC➌ 20,000➍<br />
For all 3-phase Delta, grounded B phase<br />
applications, contact your local Cutler-<br />
Hammer Field Sales Office.<br />
Type MAY <strong>breakers</strong> are not defined by<br />
Federal Specification W-C-375b.<br />
Underwriters’ Laboratories, Inc. listed<br />
Interrupting Ratings<br />
Volts Max. Amperes<br />
240 VAC 115,000 Asym., 100,000 Sym.<br />
For all 3-phase Delta, grounded B phase<br />
applications, contact your local Cutler-<br />
Hammer Field Sales Office.<br />
Terminals➎<br />
Two terminals are required per pole.<br />
Terminals are Underwriters’ Laboratories,<br />
Inc. listed for wire type and range listed<br />
right. When used with aluminum cable,<br />
use joint compound.<br />
➊ Not listed with Underwriters’ Laboratories, Inc.<br />
➋ Interrupting capacities shown do not apply to high magnetic <strong>molded</strong> <strong>case</strong> switches.<br />
➌ Above 600 amperes, DC rating applies to magnetic only <strong>breakers</strong>.<br />
➍ Ratings above 10,000 amperes not UL listed.<br />
➎ Terminals are shipped separately from breaker.<br />
➏ Set on high side, adjustable to lower limits.<br />
➐ 60 Hz AC only.<br />
37<br />
Terminals➎<br />
Two terminals are required per pole.<br />
Terminals are Underwriters’ Laboratories,<br />
Inc. listed for wire type and range listed<br />
below. When used with aluminum conductors,<br />
use joint compound.<br />
Max.<br />
Amps<br />
Catalog<br />
Number<br />
No. of Cables,<br />
Wire Range, Type<br />
Standard Al/Cu Pressure Terminals<br />
600<br />
800 (Std.)<br />
800➊<br />
TA700MA1<br />
TA800MA2<br />
TA801MA<br />
Optional Copper Pressure Terminals<br />
350<br />
600<br />
800<br />
T350MA<br />
T600MA1<br />
T800MA1<br />
(2) #1-500 MCM Al/Cu<br />
(3) 3⁄0-400 MCM Al/Cu<br />
(2) 500-750 MCM Al/Cu<br />
(1) #1-600 MCM Cu<br />
(2) 2⁄0-500 MCM Cu<br />
(3) 3⁄0-300 MCM Cu<br />
Magnetic Only and Ambient Compensating<br />
Breakers<br />
For description, refer to Application Data<br />
29-160. To order a complete breaker,<br />
select trip unit plus frame and terminals.<br />
Max.<br />
Amps<br />
Catalog<br />
Number<br />
No. of Cables,<br />
Wire Range, Type<br />
Standard Al/Cu Pressure Terminals<br />
600<br />
800 (Std.)<br />
800<br />
TA700MA1<br />
TA800MA2<br />
TA801MA<br />
Optional Copper Pressure Terminals<br />
350<br />
600<br />
800<br />
T350MA<br />
T600MA1<br />
T800MA1<br />
(2) #1-500 MCM Al/Cu<br />
(3) 3/0-400 MCM Al/Cu<br />
(2) 500-750 MCM Al/Cu<br />
(1) #1-600 MCM Cu<br />
(2) 2/0-500 MCM Cu<br />
(3) 3/0-300 MCM Cu<br />
Additional Accessories and Modifications<br />
Refer to pages 58-68.<br />
A
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