Circuit-breakers NZM1, 2, 3, 4 up to 2000 A - Moeller Electric Parts

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10/108 Engineering MCB, back-up protection Circuit-breakers, switch-disconnectors NZM1, NZM2, NZM3 Protection of PVC insulated cables against thermal overload with short-circuits According to VDE 0100 part 430 cables and conductors must be protected against short-circuit and overload. The overload protection is obtained by using NZM circuit-breakers with settable, currentdependent, delayed overload release. Short-circuit protection is provided by adjustable instantaneous releases, which open the main contacts in less than 25 ms. The short-circuit total opening time restricts the temperature rise of the cable to a minimum. Min. protected cross-section mm 2 copper NZM...1(-4)-...20 6 NZM...1(-4)-...25 … 160 10 NZM...2(-4)-...20 … 250 10 NZM...3(-4)-...250 … 630 16 NZM...4(-4)-...630 … 1600 95 Moeller HPL0211-2007/2008 http://catalog.moeller.net The tables indicate the minimum conductor crosssection reliably protected by circuit-breakers during a short-circuit. (Operating voltage U N = 415 V) Back-up protection between NZM(N)(H) incoming circuit-breaker and NZMB(N)(H) outgoing circuit-breaker Incoming circuit-breaker a NZM1 NZM2 NZM3 I n up to 160 A up to 250 A up to 630 A a I cu(415 V) 25 kA 36 kA 50 kA 100 kA 25 kA 36 kA 50 kA 150 kA 50 kA 150 kA Outgoing circuit-breaker b I cu(415 V) I n NZMB1 25 kA up to 160 A 25 36 50 100 25 36 50 100 50 100 NZMC1 36 kA up to 160 A – 36 50 100 36 50 100 50 100 b NZMN1 50 kA up to 160 A – – 50 100 – – 50 100 50 100 NZMH1 100 kA up to 160 A – – – 100 – – – 100 – 100 NZMB2 25 kA up to 250 A 25 36 50 100 25 36 50 150 50 150 NZMC2 36 kA up to 250 A – 36 50 100 – 36 50 150 50 150 NZMN2 50 kA up to 250 A – – 50 100 – – 50 150 50 150 NZMH2 150 kA up to 250 A – – – – – – – 150 – 150 NZMN3 50 kA up to 630 A – – – – – – – – 50 150 NZMH3 150 kA up to 630 A – – – – – – – – – 150 Where the prospective fault current at the point of installation of circuit-breakers is very high, it is conventional to use NZMN(H) current-limiting circuitbreakers. An attractively priced alternative is to fit a NZMN(H) current-limiting circuit-breaker upstream of NZMB(C)(N) standard circuit-breakers, if the fault level is too high for NZMB(C)(N) switches. The table shows which current-limiting circuit-breaker NZMN(H) in combination with NZMB(C)(N) are to be used to provide protection at the network locations with high short-circuit capacities. The selectivity limit is determined by the response current of the non-delayed short-circuit release in the upstream incoming circuit-breaker. In many applications this is sufficient. between NZM...1-A... incoming circuit-breaker and FAZ-B(C)/PLSM-B(C)... outgoing circuit-breaker Outgoing circuitbreaker NZM(B)(C)2-A... NZMC(N)(H)1-A... Outgoing circuit-breaker I cc FAZ-B(C)... 0,5 – 16 25 kA 30 kA NZM... 20 – 40 20 kA 20 kA 50, 63 15 kA 15 kA PLSM-B(C)...(/...) PLSM 0,5 – 16 25 kA 30 kA 20 – 40 20 kA 20 kA 50, 63 15 kA 15 kA between NZM...2-A... incoming circuit-breaker and FAZ-B(C)/PLSM-B(C)... outgoing circuit-breaker Outgoing circuitbreaker NZMB(C)2-A... NZMN(H)2-A... Incoming circuit-breaker I cc FAZ-B(C)... 0,5 – 10 25 kA 50 kA NZM... 13 – 32 25 kA 30 kA 40 – 63 20 kA 20 kA PLSM-B(C)...(/...) PLSM 0,5 – 10 25 kA 50 kA 13 – 32 25 kA 30 kA 40 – 63 20 kA 20 kA For Moeller Electric Sales and Support call KMparts.com (866) 595-9616
Engineering Direction of blow-out, minimum clearances, tube cable lugs f i 10/109 http://catalog.moeller.net Direction of blow-out Moeller HPL0211-2007/2008 Top, front Bottom, rear NZM1 X – NZM2 1) X X NZM3 X X NZM4 X – 1) NZM B (C) – A … as NZM1 NZM1, NZM2, NZM3, NZM4 Circuit-breakers, switch-disconnectors Minimum clearances between two adjacently mounted switches Minimum clearance a in mm b a b c d NZM1 NZM2 NZM3 NZM4 NZM1 0 5 5 15 NZM2 5 5 5 15 NZM3 5 5 5 15 NZM4 15 15 15 15 between switch and other parts Minimum clearances in mm b c d F 690 V 1000 V F 690 V 1000 V F 690 V 1000 V NZM1 0 – 60 – 0 – NZM2 1) 5 5 35 35 35 35 NZM3 5 5 60 60 60 60 NZM4 15 15 100 200 0 0 1) NZM B (C) – A … C= 60 mm, d = 0 mm Dimensions g For pressing the cable lugs a press tool K22, HK60/22 or EK22 from the company Klauke is necessary with the following press inserts: R22/95 for 95 mm 2 R22/120 for 120 mm 2 R22/150 for 150 mm 2 R22/185 for 185 mm 2 R22/240 for 240 mm 2 d e b c h a Cable lug For use with Rated cross Terminal bolt Dimensions in mm section mm 2 o a b c d e f g h i KS95-NZM7 NZM2 95 M8 53+2 23g0.5 18g0.2 10g1 19 8,5 25 13,5 4,4 KS120-NZM7 NZM2 120 M8 56+2 23g0.5 19.5g0.2 10g1 19 8,5 26 15 4,4 KS150-NZM7 NZM2 150 M8 61+2 23g0.5 21g0.2 10g1 19 8,5 30 16,5 4,4 NZM2-XKS185 NZM2 185 M8 65g1.5 22g1 24g0.3 9 +1 –0,5 19 +2,5 –0,5 8,5 +0,05 –0,1 30g2 19g0.4 7 NZM3-XKS185 NZM3, NZM4 185 M10 65 24,5 24 11,5 18 10,5 30 19 7.0g0.8 NZM3-XKS240 NZM3, NZM4 240 M10 72 31 26 11,5 19 10,5 35 21 5.0g0.8 For Moeller Electric Sales and Support call KMparts.com (866) 595-9616
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Contents 10/1 Moeller HPL0211-2007/
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System overview Circuit-breakers, s
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For Moeller Electric Sales and Supp
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Ordering Switch-disconnectors, 4-po
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Page 21 and 22: For Moeller Electric Sales and Supp
Page 39 and 40: 10/68 Ordering Plug-in units Moelle
Page 47 and 48: Ordering Undervoltage releases, off
Page 49 and 50: Ordering Shunt releases with screw
Page 51 and 52: Ordering Shunt releases with screw
Page 55 and 56: Ordering Rotary handles with door i
Page 59 and 60: Ordering Accessories 10/91 http://c
Page 61 and 62: Ordering Mechanical interlock 10/93
Page 63 and 64: Ordering Multi-function device adap
Page 71: For Moeller Electric Sales and Supp
Page 85 and 86: Engineering Frame size 2: residual-
Page 89 and 90: Technical data Circuit-breaker, swi
Page 91 and 92: Technical data Moulded Case Switch
Page 93 and 94: Technical data Temperature influenc
Page 101 and 102: Technical data Field Bus connection
Page 107 and 108: R46 For Moeller Electric Sales and
Page 109 and 110: 10/150 Dimensions Size 1: accessori
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10/164 Dimensions Size 2: accessori
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10/184 Dimensions Frame size 4: N12
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Circuit-breakers NZM1, 2, 3, 4 up to 2000 A - Moeller Electric Parts

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