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Sign In Register Forgot User ID? Forgot Password?1-Pole, UL1077 DIN-Rail Mount Supplementary Protectors
18 products
One-pole supplementary protectors are used in a single circuit to interrupt currents in the event of an overload. They're UL1077 listed for use as extra protection from electrical damage for devices that already have branch circuit protection or where branch circuit protection isn't required. These protectors follow trip curves to determine when they will interrupt the current. If the current exceeds a device's rating up to a certain factor, the circuit breaker will have a delayed trip to prevent nuisance tripping. If the current exceeds the device's rating at or above that factor, it will immediately trip. They're mounted on standard 35mm DIN rail in applications like luminaires, appliances, control circuits, and control power transformers.
Max. AIR Rating
B-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
B-curve one-pole supplementary protectors trip instantaneously when the current load exceeds three to five times the rating of the device. These breakers mount on standard 35mm DIN rail and are UL1077 listed for use as supplementary protection from damage caused by overcurrents and short circuits. They're used when protection against low-level short circuit faults is desired, such as in PLC wiring, lighting, and appliances.
230/400V AC
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240/415V AC
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277/480V AC
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277V AC
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C-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
C-curve one-pole supplementary protectors trip instantaneously when the current load exceeds five to ten times the rating of the device. These breakers mount on standard 35mm DIN rail and are UL1077 listed for use as supplementary protection from damage caused by overcurrents and short circuits. They're used when protection against medium-level short circuit faults is desired, such as in control panels, lighting, and coils.
230/400V AC
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240/415V AC
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277/480V AC
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277V AC
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D-Curve, 1-Pole UL1077 DIN Rail-Mount Supplementary Protectors
D-curve one-pole supplementary protectors trip instantaneously when the current load exceeds ten to 20 times the rating of the device. These breakers mount on standard 35mm DIN rail and are UL1077 listed for use as supplementary protection from damage caused by overcurrents and short circuits. They're used when protection against high-level short circuit faults is desired, such as in motors, transformers, and power supplies.
230/400V AC
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240/415V AC
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277/480V AC
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277V AC
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