FORMULA BLD 塑殼斷路器D3N250 TMF250/2500 FF 3P根據下列結構特性設計制造。
一. 雙重絕緣
FORMULA BLD斷路器的帶電部件（不包括端子）與正常運行過程中操作員操縱的設備的前端部件之間有雙重絕緣。每個電氣附件的底座與電源回路隔離，避免與帶電部件接觸。尤其是操作機構與供電回路隔絕。另外，斷路器的帶電內部零件之間以及接線端子附近有超大的絕緣距離。并且，距離超過IEC標準規定的距離。
二.熱帶氣候適應性
根據IEC 60068-2-30標準，采用“variant 1”方法（第7.3.3節），在55°C溫度條件下對FORMULA BLD系列中的斷路器和附件進行了兩次測試。基于下列原因，FORMULA BLD系列對于*嚴酷環境條件的適應性得到進一步保證：
• 絕緣塑殼使用玻璃纖維增強合成樹脂制成；
• 主要金屬部件經過防腐處理；
• 鍍層提供Fe/Zn 12鋅鍍層（ISO 2081）保護，不含六價鉻（符合ROHS），達到ISO 4520 2C級耐腐蝕性能。
三.絕緣性能
在分閘位置，斷路器保證符合IEC 60947-2標準要求的絕緣距離，因此能夠避免輸入與輸出端子之間的泄漏電流。
四.操作
操縱桿始終指示斷路器動觸頭的位置，從而保證符合IEC 60073及IEC 60417-2標準的安全、可靠信號（I=合閘，O=分閘，黃色-綠色線=因保護性脫扣而分閘）。斷路器操作機構帶自由脫扣機構，無論操縱桿上的壓力和運行速度如何。保護脫扣自動斷開動觸頭：要使觸頭再次合閘，必須首先將操縱桿從中間位置推到*低端分閘位置，重置操作機構。
殼架Iu 脫扣器In 產品型號訂貨代碼 A A 3P 4P (In N = 100%)
D1 125 TMF 16 D1N125 TMF16/400 FF 1SDA127827R1 1SDA127882R1
20 D1N125 TMF20/400 FF 1SDA127828R1 1SDA127883R1
25 D1N125 TMF25/400 FF 1SDA127829R1 1SDA127884R1
32 D1N125 TMF32/400 FF 1SDA127830R1 1SDA127885R1
40 D1N125 TMF40/400 FF 1SDA127831R1 1SDA127886R1
50 D1N125 TMF50/500 FF 1SDA127832R1 1SDA127887R1
63 D1N125 TMF63/630 FF 1SDA127833R1 1SDA127888R1
80 D1N125 TMF80/800 FF 1SDA127834R1 1SDA127889R1
100 D1N125 TMF100/1000 FF 1SDA127835R1 1SDA127890R1
125 D1N125 TMF125/1250 FF 1SDA127836R1 1SDA127891R1
D2 160 TMF 63 D2N160 TMF63/630 FF 1SDA128060R1 1SDA128072R1
80 D2N160 TMF80/800 FF 1SDA128061R1 1SDA128073R1
100 D2N160 TMF100/1000 FF 1SDA128062R1 1SDA128074R1
125 D2N160 TMF125/1250 FF 1SDA128063R1 1SDA128075R1
160 D2N160 TMF160/1600 FF 1SDA127837R1 1SDA127892R1
D3 250 TMF 200 D3N250 TMF200/2000 FF 1SDA127838R1 1SDA127893R1
225 D3N250 TMF225/2250 FF 1SDA127839R1 1SDA127894R1
250 D3N250 TMF250/2500 FF 1SDA127840R1 1SDA127895R1
D4 400 TMF 320 D4N400 TMF320/3200 FF 1SDA127841R1 1SDA127896R1
400 D4N400 TMF400/4000 FF 1SDA127842R1 1SDA127897R1
D4 630 TMF 500 D4N630 TMF500/5000 FF 1SDA127843R1 1SDA127898R1
630 D4N630 TMF630/6000 FF 1SDA127844R1 1SDA127899R1
FORMULA BLD 塑殼斷路器D3N250 TMF250/2500 FF 3P
殼架Iu 脫扣器In 產品型號訂貨代碼 A A 3P 4P (In N = 100%)
20 D1B 125TMF20/400 F F 1SDA127803R1 1SDA127858R1
25 D1B 125TMF25/400 F F 1SDA127804R1 1SDA127859R1
32 D1B 125TMF32/400 F F 1SDA127805R1 1SDA127860R1
40 D1B 125TMF40/400 F F 1SDA127806R1 1SDA127861R1
50 D1B 125TMF50/500 F F 1SDA127807R1 1SDA127862R1
63 D1B 125TMF63/630 F F 1SDA127808R1 1SDA127863R1
80 D1B 125TMF80/800 F F 1SDA127809R1 1SDA127864R1
100 D1B 125TMF100/1000 F F 1SDA127810R1 1SDA127865R1
125 D1B 125TMF125/1250 F F 1SDA127811R1 1SDA127866R1
16 D1B125 MF16/384 F F 3P 1SDA127912R1
20 D1B125 MF20/384 F F 3P 1SDA127913R1
25 D1B125 MF25/384 F F 3P 1SDA127914R1
32 D1B125 MF32/384 F F 3P 1SDA127915R1
40 D1B125 MF40/480 F F 3P 1SDA127916R1
50 D1B125 MF50/600 F F 3P 1SDA127917R1
60 D1B125 MF60/720 F F 3P 1SDA127918R1
80 D1B125 MF80/960 F F 3P 1SDA127919R1
100 D1B125 MF100/1200 F F 3P 1SDA127920R1
125 D1B125 MF125/1250 F F 3P 1SDA127921R1
63 D2S160 MF63/756 FF 3P 1SDA127952R1
80 D2S160 MF80/960 FF 3P 1SDA127953R1
100 D2S160 MF100/1200 FF 3P 1SDA127954R1
125 D2S160 MF125/1500 FF 3P 1SDA127955R1
160 D2S160 MF160/1600 FF 3P 1SDA127956R1
63 D2S160 TMF63/630 FF 3P 1SDA127845R1 1SDA127900R1
80 D2S160 TMF80/800 FF 3P 1SDA127846R1 1SDA127901R1
100 D2S160 TMF100/1000 FF 3P 1SDA127847R1 1SDA127902R1
125 D2S160 TMF125/1250 FF 3P 1SDA127848R1 1SDA127903R1
160 D2S160 TMF160/1600 FF 3P 1SDA127849R1 1SDA127904R1
200 D3S250 TMF200/2000 FF 1SDA127850R1 1SDA127905R1
225 D3S250 TMF225/2250 FF 1SDA127851R1 1SDA127906R1
250 D3S250 TMF250/2500 FF 1SDA127852R1 1SDA127907R1
200 D3S250 TMF200/2000 FF+RCD+CT110+SOR 1SDA128001R1 1SDA128045R1
225 D3S250 TMF225/2250 FF+RCD+CT110+SOR 1SDA128002R1 1SDA128046R1
250 D3S250 TMF250/2500 FF+RCD+CT110+SOR 1SDA128003R1 1SDA128047R1
