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10/168 Technical data Line protection Circuit-breakers, switch-disconnectors up to 1600 A Protection of PVC insulated cables against thermal overload with short-circuits In accordance with IEE wiring regulations, cables and Short-circuit protection is provided by adjustable conductors must be protected against overloads and instantaneous releases, which open the main contacts short-circuits. in less than 25 ms. In NZM circuit-breakers, the overload protection is The short-circuit total opening time restricts the implemented via the adjustable, current-dependant temperature rise of the cable to a minimum. time-delayed overload releases. Minimum protected cross-section mm 2 copper NZM...1(-4)-...20 6 NZM...1(-4)-...25 – 160 10 NZM...2(-4)-...20 – 250 4 NZM...3(-4)-...250 – 630 16 NZM...4(-4)-...630 – 1600 95 Moeller HPL0211-2004/2005 The tables indicate the minimum conductor crosssection reliably protected by circuit-breakers during a short-circuit. (Operating voltage U N = 415 V) Backup protection between NZMN(H)(L) incoming circuit-breaker and NZMB(N)(H)... outgoing circuit-breaker Outgoing circuitbreaker Incoming circuit-breaker NZMN1 NZMH1 NZMN2 NZMH2 NZML2 NZMN3 NZMH3 NZML3 I cu 50 kA 100 kA 50 kA 100 kA 150 kA 50 kA 100 kA 150 kA a NZMB1 25 kA K K K – – K – – NZMN(H)(L) NZMN1 50 kA – K – – – – – – NZMB2 25 kA – – K K – K K – NZMN2 50 kA – – – K K – K K b NZMH2 100 kA – – – – K – – K NZMB(N)(H) NZMN3 50 kA – – – – – – K K NZMH3 100 kA – – – – – – – K Where the prospective fault current at the point of installation of circuit-breakers is very high, it is conventional to use NZMN(H)(L) current-limiting circuitbreakers. An attractively priced alternative is to fit a NZMN(H)(L) current-limiting circuit-breaker at the point in the network upstream of NZMB(N)(H) standard circuit-breakers, if the fault level is too high for NZMB(N)(H) switches. The table indicates which current-limiting circuitbreaker NZMN(H)(L) in combination with NZM(B)(N)(H) 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 I cc Outgoing circuitbreaker Incoming circuit-breaker NZMB1-A... NZMN1-A... NZM... FAZ-(2)(3)(4)(N)-B(C)... 0.5 – 16 25 kA 30 kA 20 – 40 20 kA 20 kA 50, 63 15 kA 15 kA FAZ.../ NZM PLSM-B(C)...(/...) 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 I cc Outgoing circuitbreaker Incoming circuit-breaker NZMB2-A... NZMN(H)(L)2-A... NZM... FAZ-(2)(3)(4)(N)-B(C)... 0.5 – 10 25 kA 50 kA 13 – 32 25 kA 30 kA 40 – 63 20 kA 20 kA FAZ.../ NZM PLSM-B(C)...(/...) 0.5 – 10 25 kA 50 kA 13 – 32 25 kA 30 kA 40 – 63 20 kA 20 kA For Immediate Delivery call KMParts.com at (866) 595-9616
Tripping characteristics Circuit-breakers 10/169 Moeller HPL0211-2004/2005 System and line protection with NZM1 Tripping time [s] 2.5h 8000 6000 4000 2000 1000 800 (10 min) 600 400 200 100 80 (1 min) 60 40 NZM1-A40...125 Motor protection with NZM1 Tripping time [s] 2.5h 8000 6000 4000 2000 1000 800 (10 min) 600 400 200 100 80 (1 min) 60 40 NZM1-M40...100 Circuit-breakers, switch-disconnectors up to 1600 A 20 20 10 6 8 4 10 6 8 4 2 0.8 1 0.6 0.4 2 0.8 1 0.6 0.4 0.2 0.2 0.1 0.08 0.06 0.04 0.1 0.08 0.06 0.04 0.02 0.02 0.01 0.008 0.006 0.004 0.01 0.008 0.006 0.004 0.002 0.002 0.001 1 2 3 4 5 6 7 8 910 15 20 30 40 50 60 70 80 100 0.001 1 2 3 4 5 6 7 8 910 15 20 30 40 50 60 70 80 100 x I r x I r System and line protection with NZM2 Motor protection with NZM2 Tripping time [s] 2.5h 8000 6000 4000 2000 1000 800 (10 min) 600 400 NZM2-A40...250 Tripping time [s] 2.5h 8000 6000 4000 2000 1000 800 (10 min) 600 400 NZM2-M125...200 200 200 100 80 (1 min) 60 40 100 80 (1 min) 60 40 20 20 10 6 8 4 10 6 8 4 2 0.8 1 0.6 0.4 2 0.8 1 0.6 0.4 0.2 0.2 0.1 0.08 0.06 0.04 0.1 0.08 0.06 0.04 0.02 0.02 0.01 0.008 0.006 0.004 0.01 0.008 0.006 0.004 0.002 0.002 0.001 1 2 3 4 5 6 7 8 910 15 20 30 40 50 60 70 80 100 0.001 1 2 3 4 5 6 7 8 910 15 20 30 40 50 60 70 80 100 x I r For Immediate Delivery call KMParts.com at (866) 595-9616 x I r
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10/0 Circuit-breakers, switch-disco
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10/2 Contents NZM1, 2, 3, 4 circuit
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10/4 System overview Circuit-breake
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10/6 Overview Circuit-breaker, swit
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10/10 Circuit-breakers Thermomagnet
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10/14 Circuit-breakers Electronic r
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10/18 Circuit-breakers Thermomagnet
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10/22 Circuit-breakers Electronic r
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10/26 Switch-disconnectors 3-pole C
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10/28 Overview Circuit-breakers, sw
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10/32 Circuit-breakers for North Am
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10/44 Switch-disconnector for North
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10/46 Circuit-breakers, switch-disc
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Page 71 and 72: Technical overview NZM circuit-brea
Page 73 and 74: 10/112 NZM7 3-pole circuit-breakers
Page 75 and 76: 10/116 NZM7 4-pole circuit-breakers
Page 77 and 78: 10/118 P7 switch-disconnectors, 3-p
Page 79 and 80: 10/122 Accessories for NZM7 and P7
Page 81 and 82: Accessories for NZM7 and P7 Undervo
Page 83 and 84: Accessories for NZM7 and P7 Undervo
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Page 93 and 94: 10/142 NZM10 circuit-breakers, 4-po
Page 95 and 96: P10, NZM10 3-pole switch-disconnect
Page 97 and 98: 10/148 NZM10 circuit-breakers and s
Page 99 and 100: NZM10, P10 circuit-breakers and swi
Page 107 and 108: 10/160 NZM10, P10 circuit-breakers
Page 109 and 110: 10/164 NZM10, P10 circuit-breakers
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Page 115 and 116: Tripping characteristics Circuit-br
Page 123 and 124: 10/180 Technical data Circuit-break
Page 125 and 126: Technical data Withdrawable, remote
Page 127 and 128: Technical data Releases 10/185 HPL0
Page 129 and 130: 10/188 Technical data Data Manageme
Page 131 and 132: Dimensions Circuit-breakers, switch
Page 133 and 134: R46 90˚ Dimensions Circuit-breaker
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Dimensions Circuit-breakers, switch
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