January 1 Vol. 1, Ref. No. [0487] 2 Amperes - Product Selection Table -33. s,, and E Thermal-Magnetic Circuit Breakers with Non-interchangeable Trip Units Suitable for Reverse Feed Maximum Continuous Ampere Rating @ 40 C 240V AC Maximum, 1V (Includes Terminals on Load End Only) kaic @ 240V AC 0 kaic @ 240V AC kaic @ 240V AC E Current Limiting 2-Pole 3-Pole 2-Pole 3-Pole 2-Pole 3-Pole 0 1 175 2 20 21 2 2175 2 22 30 31 3 3175 3 32 20 21 2 2175 2 22 30 31 3 3175 3 32 E20 E21 E2 E2175 E2 E22 E30 E31 E3 E3175 E3 E32 1,5. 1,5. 1,5. 1,5. 1,5. 1,5. Note: Instruction Leaflet/FR 29C1 Table -34. EHD Thermal-Magnetic Circuit Breakers with Non-interchangeable Trip Units Maximum Continuous Ampere Rating @ 40 C 277V AC Maximum, 1V 480V AC Maximum, 0V 14 kaic @ 277V AC 14 kaic @ 480V AC EHD (Includes Terminals on Load End Only) 1-Pole 2-Pole 3-Pole 15 20 30 40 45 50 60 70 80 90 0 EHD EHD15 EHD20 EHD EHD30 EHD EHD40 EHD45 EHD50 EHD60 EHD70 EHD80 EHD90 EHD10 Not UL listed. 5 kaic interrupting rating. UL listed for SWD applications, see NEC Article 240-83 (d). 239. EHD20 EHD2015 EHD2020 EHD20 EHD2030 EHD20 EHD2040 EHD2045 EHD2050 EHD2060 EHD2070 EHD2080 EHD2090 EHD20 EHD30 EHD3015 EHD3020 EHD30 EHD3030 EHD30 EHD3040 EHD3045 EHD3050 EHD3060 EHD3070 EHD3080 EHD3090 EHD30 Note: Instruction Leaflet/FR 29C1 Discount Symbol......................... CB-2
-2 Product Line Overview January 1 Vol. 1, Ref. No. [0468] Product Line Description Cutler-Hammer Molded Case Circuit Breakers are designed to provide circuit protection for low voltage distribution systems. They are described by NEMA as,... a device for closing and interrupting a circuit between separable contacts under both normal and abnormal conditions, and furthermore as,... a breaker assembled as an integral unit in a supporting and enclosing housing of insulating material. The NEC describes them as, A device designed to open and close a circuit by non-automatic means, and to open the circuit automatically on a predetermined overload of current, without injury to itself when properly applied within its rating. So designed, Cutler-Hammer circuit breakers protect conductors against overloads and conductors and connected apparatus, such as motors and motor starters, against short circuits. In low voltage distribution systems, there are many varied applications of molded case circuit breakers. Cutler-Hammer offers the most comprehensive family of molded case circuit breakers in the industry. This family of circuit breakers includes: Thermal Magnetic Trip Breakers Electronic rms Trip Breakers Molded Case Switches Motor Circuit Protectors Current Limiting Breakers Special Application Breakers World Breakers Special Calibration Special non-ul-listed calibrations are available for certain ambient temperatures other than 40 C and for frequencies other than Hz or. Reduced interrupting ratings will apply for 400 Hz applications. Maximum thermal calibration is limited to 1A at 400 Hz. Suffix H01 400 Hz 20% Adder Moisture-Fungus Treatment All circuit breaker cases are molded from glass-polyester which does not support the growth of fungus. Any parts which are susceptible to the growth of fungus will require special treatment. Suffix J01 Fungus Treated Freeze-Tested Circuit Breakers The circuit breakers may be ordered with freeze testing. This option uses special lubrication and mechanical operation is verified at -40 C. Suffix F01 Freeze Tested Marine Applications circuit breakers can be supplied to meet the following marine specifications: U.S. Coast Guard CFR 46 ABS American Bureau of Shipping IEEE 45 These specifications generally require molded case circuit breakers to be supplied with 50 C ambient calibration, special nameplating, and plug-in adapter kits. When plug-in adapter kits are used, no terminals need be supplied. Circuit breakers can also be supplied to meet UL489 Supplement SA (Marine Use) and UL489 Supplement SB (Naval Use). UL489 Supplement SA applies to vessels over feet in length. Requirements include 40 C ambient calibration, special labeling, and no use of aluminum conductors or terminals. Suffix H08 Marine UL 489 Supplement SB requires 50 C ambient calibration, vibration testings, special nameplating and no use of aluminum conductors or terminals. Suffix H09 Naval $3. + 20% Adder 20% Adder % Adder % Adder Standards and Certifications Molded case circuit breakers are designed to conform with the following standards: Underwriters Laboratories, Inc., Standard UL489, Molded Case Circuit Breakers and Circuit Breaker Enclosures National Electrical Manufacturers Association Standards Publication No. AB1-1993, Molded Case Circuit Breakers Australian Standard AS 24, Molded Case Circuit Breakers British Standards Institution Standard BS 4752: Part 1, Switchgear and Control Gear Part 1: Circuit Breakers Canadian Standards Association Standard C22.2 No. 5, Service Entrance and Branch Circuit Breakers International Electrotechnical Commission Recommendations IEC 157-1, Circuit Breakers Japanese T-Mark Standard Molded Case Circuit Breakers South African Bureau of Standards, Standard SABS 156, Standard Specification for Molded Case Circuit Breakers Swiss Electro-Technical Association Standard SEV 157-1, Safety Regulations for Circuit Breakers Union Technique de l Electricite Standard NF C 63-0, Low Voltage Switchgear and Control Gear Circuit Breaker Requirements Verband Deutscher Elektrotechniker (Association of German Electrical Engineers) Standard VDE 0660, Low Voltage Switchgear and Control Gear, Circuit Breakers Conformance with these standards satisfies most local and international codes, assuming user acceptability and simplified application. Molded case circuit breakers equal or exceed Federal Specification Classification W-C-375b requirements for the particular class associated with the circuit breaker frame being considered. 50 C Calibration Add suffix V to for complete breaker, listed above, when ordering listed ampere ratings for breakers to be used in 50 C ambients. Note: For further information, see Circuit Breaker, CD-ROM SA.74A.01.T.E.
January 1 Vol. 1, Ref. No. [0485] 2 Amperes - Contents Description Page Product Description........ -19 Technical Data and Specifications........ -19 Dimension/Weights........ -20 Product Selection.......... -20 Product Description All Circuit Breakers are HACR rated. All circuit breakers through 50 amperes are suitable for HID (high intensity discharge) use. All circuit breakers are suitable for reverse feed use. Typical Breaker Technical Data and Specifications Table -28. UL489 Interrupting Capacity Ratings Circuit Breaker E EHD 1 Interrupting Capacity (Symmetrical Amperes) (ka) Volts AC ( Hz) Volts 240 277 480 600 1 0 0 14 FDB, 4 14 14 FD 1, 4 HFD 1, 4 F, 4 0 22 ratings apply to substantially non-inductive circuits. 2-pole circuit breaker, or two poles of 3-pole circuit breaker. Time constant is 3 milliseconds minimum at ka and 8 milliseconds minimum at 22 ka. Table -29. IEC 157-1 (P1) Interrupting Capacity Ratings (P1) Circuit Breaker E of Poles 0 F, 4 0 0 22 ratings apply to substantially non-inductive circuits. 2-pole circuit breaker, or two poles of 3-pole circuit breaker. Time constant is 3 milliseconds minimum at ka and 8 milliseconds minimum at 22 ka. 14 Interrupting Capacity (Symmetrical Amperes) (ka) Volts AC ( Hz) Volts 220, 240 380, 415 440 500 1 0 0 FDB, 4 14 14 14 FD 1, 4 HFD 1, 4 0 22 22
-20 2 Amperes January 1 Vol. 1, Ref. No. [0486] Dimensions/Weights Table -30. Dimensions in Inches (mm) Width Height Depth 1 2 3 4 1.375 () 2.75 (70) 4.1 (5) 5.5 (140) Table -31. Approximate Shipping Weight, Lbs. (Kg) Breaker 1 2 3 4,, E 3 (1.361) 4.5 (2.041) EHD, FDB, FD, HFD, F2 (.907) 3 (1.361) 4.5 (2.041) 6 (2.721) Product Selection This information is presented only as an aid to understanding s. It is not to be used to build s for circuit breakers or trip units. Table -32. Circuit Breaker ing System F D C 3 1 0 0 L Circuit Breaker EHD FDB FD HFD F 1 = 1 Pole 2 = 2 Poles 3 = 3 Poles 4 = 4 Poles Trip Amperes 0 015 020 0 030 0 040 045 050 060 070 080 090 0 1 1 175 (FD, HFD, F, 2-, 3-, 4-Pole Only) (FD, HFD, F, 2-, 3-, 4-Pole Only) 2 (FD, HFD, F, 2-, 3-, 4-Pole Only) Suffix E = 0% Protected (4-Pole only) Neutral Pole EH = 50% Protected (4-Pole only) K = High Magnetic Molded Case Switch L = Line and Load Terminals S = Stainless Steel Terminals V = 50 C Calibration W = Without Terminals Y = Line Terminals Only Z = Aluminum Terminals ( 0 Amperes) E D C 3 2 0 0 L Circuit Breaker E 2 = 2-Pole 3 = 3-Pole Trip Amperes 0 1 175 2 L W Y Z Suffix = Line and Load Terminals = Without Terminals = Line Terminals Only = Aluminum Terminals (0 Amperes)
January 1 Vol. 1, Ref. No. [0643] Internal Accessories Undervoltage Release Mechanism -1 Table -3. E1 Undervoltage Release Mechanism Electrical Ratings Volts Frequency Hz 24 48 60 48 60 1 7 1 1 208 240 220 0 380 500 5 600,, UVR0CPK UVR024CPK UVR048APK UVR048DPK UVR0APK UVR1DPK UVR240APK UVR0DPK UVR480APK UVR600APK Note: Instruction Leaflet/FR 29C155 Table -4. Factory Mounted (For Breaker and HMCP) Undervoltage Release Mechanism Voltage Rating Connection and Location (AC Freq. = Hz) -inch Pigtail Leads Terminal Block Same Side Rear Opposite Side Same Side Suffix Adder Suffix Adder Suffix Adder Suffix Left-Pole Mounting AC Ratings V AC U01 U02 U03 U04 24V AC U05 U06 U07 U08 48V AC U37 U38 U39 U40 60V AC U97 U98 U99 U0 1 7V AC U13 U14 U15 U16 208 240V AC U17 U U19 U20 380 480V AC U21 U22 U23 U24 5 600V AC U U26 U27 U28 Right-Pole Mounting AC Ratings V AC 24V AC 48V AC 60V AC 1 7V AC 208 240V AC 380 480V AC 5 600V AC Left-Pole Mounting Ratings V 24V 48V 60V 1 7V 220 0V Right-Pole Mounting Ratings V 24V 48V 60V 1 7V 220 0V U49 U53 U85 U1 U61 U U69 U73 U29 U33 U37 U97 U41 U45 U77 U81 U85 U1 U89 U93 U50 U54 U86 U2 U62 U66 U70 U74 U30 U34 U38 U98 U42 U46 U78 U82 U86 U2 U90 U94 Standard pigtail lead exit location. Standard mounting location. Not for use on right pole of 4-pole circuit breaker. Note: Instruction Leaflet/FR 29C160 and 29C179 (HMCP) Note: F-frame circuit breakers are factory sealed. Underwriters Laboratories, requires that internal accessories be installed at the factory. Internal accessories are UL listed for factory installation under E7819. Where local codes and standards permit and UL listing is not required, internal accessories can be field installed. Accessory installation should be done before the circuit breaker is mounted and connected. U51 U55 U87 U3 U63 U67 U71 U75 U31 U U39 U99 U43 U47 U79 U83 U87 U3 U91 U95 U52 U56 U88 U4 U64 U68 U72 U76 U32 U36 U40 U0 U44 U48 U80 U84 U88 U4 U92 U96 Adder Discount Symbol........................ CB-2