Siemens
Siemens Energy & Automation
NGG/NGB 125A MCCB
Molded Case Circuit Breakers for the OEM Market
Siemens Energy & Automation
SIEMENS
2
NGG 125A MCCB
Molded Case Circuit Breakers for the Global OEM Market
• 15 – 125A
• 1-, 2- and 3-pole versions
• 65kA @ 240 Vac
• 25 kA @ 480 Vac
• 14 kA @ 600Y/347 Vac
• 14 kA @ 125/250 Vdc
• Full line of accessories
Siemens Energy & Automation
SIEMENS
3
NGB 125A MCCB
Molded Case Circuit Breakers for the Global OEM Market
• 15 – 125A
• 1-, 2- and 3-pole versions
• 100kA @ 240 Vac
• 25 kA @ 480Y/277 Vac
• 14 kA @ 600Y/347 Vac
• 14 kA @ 125/250 Vdc
• Fits P1-P5 Panelboards
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NGG 125A MCCB
Compared to previous SIEMENS lines:
Smaller than Sentron E-Frame Only 5.4”H, 3”W, 2.8”D
Higher interrupting ratings than CQD 65 KAIC @ 240 Vac 25 KAIC @ 480 Vac
High Performance/Current Limitation Enhances product offering for the most
popular current ratings Accepts ring terminals DIN Rail mounting
Global ratings: UL489 CSA 22.1 NOM (pending) IEC 60947-2 (pending)
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Where does the NGG 125 fit in the Siemens product range?
NGG EG 125 ED DG15-125 15-125 15-125 30-150
N 25 35 25 35H - 65 42 65L - - 65 100C - - 200 -
Yes Yes No Yes
No Yes No YesInternally Mounted Accessories
FrameAmp Range (A)
AIC @ 480 Vac (kA)
Global Ratings
CQD15-100
14--
-Yes(up to 30A)
No
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Interrupting Capacity Ratings
Ratings Volts AC Volts DC Volts AC Volts DCPoles 120 240 277 347 480 600Y/347 125 125/250 240 415 125/250
NGG 1 65 - 25 14 - - 14 - 25 - -
2, 3 - 65 - - 25 14 - 14 65 25 14
Interrupting Capacity Ratings UL 489 / IEC 60947-2 Interrupting Capacity
Ratings
Ratings Volts AC Volts DC Volts AC Volts DCPoles 120 240 277 347 480Y/277 600Y/347 125 125/250 240 415 125/250
NGB 1 100 - 25 14 - - 14 - 25 - -
2, 3 - 100 - - 25 14 - 14 65 25 14
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Accessories
NGG 125
Shunt Trip
Bell Alarm
Aux. Switch
Combo Bell / Aux.
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Tripping & Signaling Accessories•Shunt Trip•Bell Alarm•Aux. Switch•Combo Bell / Aux.
Advantages•Less inventory •Easy breaker upgrade•Field installable
NGG125 Breaker & Accessory
Common Accessories CQD, NGG & NGB
Siemens Energy & Automation
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9
Through the door Door mountFeatures
Door interlock & padlock provision standard
NEMA 1 & 12 for both configurations
NEMA 3R & 4X for door mount handle operator
(CQDOP34 – uses Sentron handles)
Common Accessories CQD, NGG & NGB
Handle Mechanisms
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10
Space Savings Over Sentron ED
15% Decreased Panel Space
0.98” Height Difference
NGGED
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11
Space Savings Over Sentron ED
1.05” Depth Difference
38% Decreased Volume
NGGED
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12
Customer Benefits – General OEM
Space savings over Sentron ED 15% decrease in panel space38% decrease in volume
Less confusion with terminal connectorsRing terminal compatibleTwo options satisfy #14-2/0 wire range
Sentron ED has 8 options for same wire range
Global Ratings High performance / current limitation Integral DIN Rail mounting
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