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The Altech Corporation 3BU8R is a supplementary protector circuit breaker, identified by its thermal magnetic trip mechanism. This 3-pole device is designed for DIN rail mounting, making it suitable for various industrial and electronic applications.
It operates at a voltage rating of 480Y/277VAC and also has a self-certified DC voltage rating of 48 VDC. The breaker has a current rating of 8A and a short circuit withstand rating of 10kA with a Class J back-up fuse, or 5kA without one. The calibration temperature is 30°C, with an operating temperature range of -25°C to 60°C.
Key features include a lever actuator, IP20 terminal protection, and a mechanical life of 10,000 cycles. It is UL1077 recognized and suitable for applications involving sensitive electronics, power supplies, and appliance circuits where branch circuit protection is already in place.
| Qty | Low | High |
|---|---|---|
| 1+ | $41.11 | $41.11 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The 3BU8R circuit breaker has an operating voltage of 480VAC and 277VAC.
The current rating of the 3BU8R is 8A.
The short circuit withstand capacity is 10kA with a UL-listed Class J back-up fuse.
The 3BU8R uses DIN rail mounting.
The operating temperature range is from -25°C to 60°C.
It is approved by CE, cURus, and UL1077.