Cutler Hammer heater chart - Charter Contact
Catalog Numbers are for 3 heater packs. (4) Sizes 5 – 8 and IEC P – Z use the 32A overload relay with current transformers.
Heater Selection General Information on Heater Coil Selection For maximum motor protection and compliance with Article 430-32 of the National Electrical Code, select heater coils from the tables in this section on the basis of motor nameplate full load current. When the full load current is unknown, selection may be made on the basis of average
Westinghouse FH Overload Heater Units - Pioneer Breaker
Cutler Hammer/Westinghouse Heater Selection for Type A and B Overload Relays, Size 00-9. Each heater is identified by a catalog number stamped on one terminal. The heater application table indicates the range of full load motor current to which a given heater many be applied.
Heater Selection — Type A and B Overload Relays, where the motor and the controller are at the same ambient temperature. For 50°C, 55°C, 75°C rise motors and enclosed motors having a service factor of 1.0, select one size smaller coil. Ambient temperature of controller lower than motor by 26°C (47°F), use one size smaller coil.
Size 1 overload relay for panel mounting. The Type A thermal overload relay (OLR) is a bimetallic device which, with the properly selected wire and heaters, will provide motor protection for running and stalled rotor overloads in motor circuits not exceeding 600 volts.
Cut sheets: Westinghouse, Siemens-Furnas, Cutler Hammer …
Cutler-Hammer Heater Chart. Table 33-171. Standard Trip — Class 20 Heater Selection
The Type A thermal overload relay (OLR) is a bimetallic device which, with the properly selected wire and heaters, will provide motor protection for running and stalled rotor overloads in motor
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Neuco
Cutler-Hammer January 2. Ref. Table 33-256. Heater Selection — NEMA Contactors & Starters Thermal and Fast Trip Overload Relays Line Type A and B Overload Relays, Sizes O.
Heater packs are used with the C306DN3B overload relay. The load lugs are built into the overload base to allow load wiring prior to heater pack installation. Heater packs come in packs of three. Auxiliary contacts are designed for installation on the Cutler-Hammer Freedom series contactors and starters.
Class 10 trip characteristics through 200 amperes and Class 30 on 400 and 850 ampere relays. Single-phase and phase unbalance sensitive. Ambient temperature compensated. Adjustable trip current, overload trip indication. NO-NC electrically isolated contacts, contact test lever. Manual/automatic reset. DIN rail and panel mounting adapter.