Catalogs > Industrial Controls Catalog > Control Circuit and Load Protection > Miniature Circuit Breakers / Supplemental Protectors > High Density Supplementary Protectors (Miniature Circuit Breakers)
High Density Supplementary Protectors (Miniature Circuit Breakers)
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Bulletin 1492-GH and 1492-GS — Supplementary Protectors
(Miniature Circuit Breakers)
- High density design allows 24 one-pole breakers per foot
- Wide range of currents for precise circuit requirements
- International approvals — meet UL, CSA, and EN/IEC standards for worldwide acceptance
- CE Marked
- AC and DC voltage ratings — in one convenient device
- A positively trip free mechanism (breaker operation cannot be defeated by holding the handle in the ON position)
- Superior shock and vibration resistance capabilities — helps prevent nuisance tripping
- Universal mounting foot for a variety of mounting channels, including Cat. No. 1492-N1 and various 35 mm DIN (e.g., Cat. No. 199-DR1)
Bulletin 1492 high density miniature circuit breakers are thermal magnetic type supplementary overcurrent protective devices. Bulletin 1492-GH miniature circuit breakers are available in one-pole units. Bulletin 1492-GS are available in one-, two-, and three-pole. These breakers are often used when panel space (width) is a premium. These products include a high density design. Up to 24 one-pole breakers can be mounted per foot. The Bulletin 1492-GS breaker can be ordered with auxiliary contacts that do not add any additional space. Wire termination is achieved by a clamping style, self-lifting box lug.
One-Pole Style Bulletin 1492-GH
This single-pole, high-density miniature circuit breaker incorporates a thermal portion and a magnetic trip function for the combined advantages of two sensing systems. The Bulletin 1492-GH breaker style uses a push-to-set mechanism for circuit actuation and comes with a manual trip button for manually opening the circuit. Voltage range is 250V AC, and this breaker has a 65V DC rating.
One-, Two-, and Three-Pole Style Bulletin 1492-GS
These high-density miniature circuit breakers incorporate a thermal portion and a magnetic trip function for the combined advantages of two sensing systems. The Bulletin 1492-GS style of breakers uses a toggle style handle mechanism for circuit actuation. Voltage range is 277V AC for the one-pole and 480Y/277V AC for the multiple pole. These breakers have a 65V DC rating.
Applications
The high-density miniature circuit breaker appliations include, but not limited to, the protection of test equipment, control instrumentation, solenoids, and power supplies. The wide range of current values and the use of a thermal magnetic trip system allows for a variety of applications where a very accurate and compact breaker is required.
UL1077, CSA C22.2 #235
In North America, miniature circuit breakers are recognized as supplementary protectors and are intended for use as overcurrent protection within an appliance or other electrical equipment where branch circuit protection is already provided or not required. Internationally, these products are rated to IEC standards as circuit breakers for equipment (CBE).