Miniature Circuit Breakers (BK63 / BTK63 Series)
(In stock)
| Product Name | Miniature Circuit Breakers (BK63 / BTK63 Series) |
| Model Number | BK63-1P – 1 Pole, standard model/BK63-2P – 2 Pole/BK63-3P – 3 Pole/BK63-4P – 4 Pole/BTK63-1P – 1 Pole with auxiliary/alarm contact/BTK63-2P, BTK63-3P, BTK63-4P – Extended versions. |
| Brand | Hitachi Industrial Equipment Systems |
| Category | Miniature Circuit Breaker (Low-voltage, DIN-rail MCB) |
| Country of Origin | Japan |
| Material | Thermoset molded housing with copper/aluminum contacts. |
| Applications | Overload and short-circuit protection for residential, commercial, and light industrial circuits; also serves as infrequent circuit switch. |
Hitachi’s BK63 and BTK63 miniature circuit breakers offer reliable overload and short-circuit protection in compact DIN-rail housings. Ranging from 1 A to 63 A and available in 1–4 poles, they support different applications with B, C, and D tripping curves for electronics, general loads, and heavy inrush devices. With a breaking capacity of up to 10 kA and IEC 60898 standards compliance, these breakers are CE and CB certified—ideal for residential, commercial, and light industrial installations. Colored handles make amp ratings easily identifiable, and optional alarm/auxiliary switches (BTK63) provide added safety and functionality.
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