What is a DC Surge Protective Device？
DC Surge Protective Devices (SPD) are essential for safeguarding electronic systems from voltage spikes, ensuring both reliability and efficiency. Their ability to absorb and redirect excess voltage helps ...
• The SM8E series of intelligent molded case circuit breakers have a four—stage protection function, The circuit breaker of category B and other short-circuit protection devices.
• With pre-alarm indication: When the load current exceeds the preset current, the LED on the circuit cover of the circuit breaker is yellow;
• Provide a hand-held special detector, Enable the user to detect the circuit breaker parameters
• Comply with the electromagnetic compatibility requirements of Appendix F of 1EC60947
| Product model | SM8F-100 | SM8E-250 | SM8E-400 | SM8E-630 | SM8E-800 | |||||||||||
| Frame grade Max rated current (A) | 125 | 250 | 400 | 630 | 800 | |||||||||||
| Capacity level | L | M | H | L | M | H | L | M | H | L | M | H | L | M | H | |
| Rated current In(A) | 32 (16, 20, 25, 32) 63 (32, 36, 40, 45, 50, 55, 6063) 125 (63, 65, 7075, 80, 85, 90, 95, 100, 125) |
250 (100, 125, 140, 160, 180, 200, 225, 250) |
400 (200, 225, 250, 280, 315, 350, 400) |
630 (400, 420, 440, 460, 550, 530, 560, 600, 630) |
800 (630, 640, 660, 680, 700, 720, 740, 760, 780, 800) |
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| Poles | 3、4 | 3、4 | 3、4 | 3、4 | 3、4 | |||||||||||
| rated insulation voltage Ui(M) | 800 | |||||||||||||||
| rated operating voltage Ue(M) | 400 | |||||||||||||||
| Rated impact voltage Uimp(V) | 8KV | |||||||||||||||
| Arcing over distance (mm) | 0 | |||||||||||||||
| Ultimate breakingcapaciy icu (KA) | 400V | 35 | 50 | 85 | 35 | 50 | 85 | 65 | 85 | 100 | 65 | 85 | 100 | 65 | 85 | 100 |
| 690V | 20 | 20 | 20 | 20 | 20 | |||||||||||
| Run breaking capacity lcs (KA) | 400V | 22 | 35 | 50 | 22 | 35 | 50 | 42 | 55 | 55 | 42 | 55 | 60 | 42 | 55 | 65 |
| 690V | 10 | 15 | 15 | 15 | 15 | |||||||||||
| Run Raled operairg shat-crcut witsand curerticow(kA) 1s | 1.2 | 2.7 | 5 | 8 | 10 | |||||||||||
| Usage model | A | B | ||||||||||||||
| operating capacity | On Power | 5000 | 2000 | 1000 | ||||||||||||
| No Power | 15000 | 10000 | 7000 | |||||||||||||
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