050805 website www. littelfuse .com in our continuing strategy to deliver unparalleled circuit protection solutions, technical expertise and application leadership, we proudly introduce the wickmann group and its products to the littelfuse portfolio. 1 6 14,2 20,8 + 0,5 ? 8,3 + 0,3 1,8 ? 15 + 0,3 m12,7x1,5 33 +0,4 4 +0,2 0,5 max. 7 16,2 11,9 -0,15 9,4 sw14 13 -0,3 12 -0,1 12,7 -0,1 vde ? 15 + 0,3 m12,7x1,5 4 +0,2 max. 7 16,2 11,9 -0,15 9,4 sw14 0,5 38,4 +0,5 34,6 +0,4 2,8 1 6 14,2 20,8 + 0,5 ? 8,3 + 0,3 1,8 13 -0,3 12 -0,1 12,7 -0,1 m m m m m inia inia inia inia inia ture ture ture ture ture f f f f f useholders useholders useholders useholders useholders holder / no. 850 850 850 850 850 specifications specifications specifications specifications specifications standard standard standard standard standard iec 60127-6 ul 512 csa c22.2. no.39 approvals approvals approvals approvals approvals vde report semko ul recognized csa sev mounting mounting mounting mounting mounting 12.7mm diameter d-hole or 13mm round hole admissible torque on plastic hex nut is 1.2nm t t t t t erminals erminals erminals erminals erminals solderable only, 4mm x 0.5mm (850) solderable or 2.8mm quick connect - fits 0.5mm tab (851) protection class & category protection class & category protection class & category protection class & category protection class & category ip 40 (with cap 855 acc. to iec 60529) ip 54 (with cap 856 acc. to iec 60529) pc2 (iec 60127-6) materials materials materials materials materials holder: black duroplastic ul 94v0 cap: black thermoplastic ul94vo sealing ring: silicon (cap 856) metal parts: copper alloy, corrosion protected terminals: solderable, tinned electrical data (23oc) electrical data (23oc) electrical data (23oc) electrical data (23oc) electrical data (23oc) rated voltage: 250v rated current: 10a rated power : 3.2w (vde/semko) operating t operating t operating t operating t operating t emperature 4w (sev) emperature 4w (sev) emperature 4w (sev) emperature 4w (sev) emperature 4w (sev) -40oc to +85oc (consider de-rating) climatic t climatic t climatic t climatic t climatic t est est est est est -40oc/+85oc/21 days (iec 60068-2-1...3) stock conditions stock conditions stock conditions stock conditions stock conditions +10oc to +60oc relative humidity 75% yearly average, without dew, maximum value for 30 days - 95% vibration resistance vibration resistance vibration resistance vibration resistance vibration resistance 24 cycles at 15 min. each (iec 60068-2-6) 10 - 60hz at 0.75mm amplitude 60 - 500hz at 10g acceleration contact resistance contact resistance contact resistance contact resistance contact resistance 5m ? impulse voltage impulse voltage impulse voltage impulse voltage impulse voltage 4 kv, 50 hz, 1 min., dry insulation resistance insulation resistance insulation resistance insulation resistance insulation resistance > 10 3 m ? (500 vdc, 1 min.) solderability solderability solderability solderability solderability 235oc, 2 sec. (wave) 350oc, 1 sec. (soldering iron) soldering heat resistance soldering heat resistance soldering heat resistance soldering heat resistance soldering heat resistance 350oc, 5 sec. (iec 60068-2-20) minimum cross section minimum cross section minimum cross section minimum cross section minimum cross section conductor - 1.5mm 2 marking marking marking marking marking part no., 250v, approvals unit weight unit weight unit weight unit weight unit weight 4.1g (850) / 1.8g (855) 4.2g (851) / 1.9g (856) order information order information order information order information order information packaging packaging packaging packaging packaging bulk (100 pcs.) order numbers order numbers order numbers order numbers order numbers holder, ip 40 no. 850 0000 100 cap, without ring, ip 40 no. 855 0000 100 holder, ip 54 no. 851 0000 100 cap, with ring, ip 54 no. 856 0000 100 cap / no. 855 855 855 855 855 panel mount, panel mount, panel mount, panel mount, panel mount, shocksafe shocksafe shocksafe shocksafe shocksafe 5x20mm fuses 5x20mm fuses 5x20mm fuses 5x20mm fuses 5x20mm fuses cap / no. 856 856 856 856 856 without silicon ring (ip 40) without silicon ring (ip 40) without silicon ring (ip 40) without silicon ring (ip 40) without silicon ring (ip 40) with silicon ring (ip 54) with silicon ring (ip 54) with silicon ring (ip 54) with silicon ring (ip 54) with silicon ring (ip 54) (from front side only) holder / no. 851 851 851 851 851 panel alternatives panel alternatives specifications are subject to change without notice note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.
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