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Eaton Molded Case Circuit Breaker Series-C, N-Frame

N-Frame (400–1200 Amperes)

Product Description

  • All Eaton N-Frame circuit breakers are suitable for reverse feed use
  • All N-Frame circuit breakers are HACR rated

Digitrip OPTIM 550 Electronic Circuit Breakers with Interchangeable Rating Plugs

Maximum
Continuous
Ampere
Rating
at 40°C 		Circuit Breaker Frame Only Digitrip
OPTIM Rating
Plug Only
L – Adjustable Long Delay Pickup (I r ) with Adjustable Long Delay Time (I 2 t or I 4 t Response) (1)
S – Adjustable Short Delay Pickup with Adjustable Short Delay Time (I 2 t or Flat Response)
I – Adjustable Instantaneous Pickup
G – Adjustable Ground Fault Pickup with Adjustable Ground Fault Time Delay (I 2 t or Flat Response)
A – Adjustable Ground Fault Alarm with Adjustable Ground Fault Time Delay (I 2 t or Flat Response)

OPTIM 550 (2)
LSI LSIG LSIA Ampere
Rating 		Fixed
Rating Plug
Three-Pole Standard Interrupting Capacity 600 Vac Rated 50 kAIC at 480 Vac
800 ND3800T52W ND3800T56W ND3800T57W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 ND312T52W ND312T56W ND312T57W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120
Three-Pole High Interrupting Capacity 600 Vac Rated 65 kAIC at 480 Vac
800 HND3800T52W HND3800T56W HND3800T57W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 HND312T52W HND312T56W HND312T57W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120
Three-Pole Ultra High Interrupting Capacity 600 Vac Rated 100 kAIC at 480 Vac
800 NDC3800T52W NDC3800T56W NDC3800T57W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 NDC312T52W NDC312T56W NDC312T57W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120

NOTES:
(1) Long delay I 4 t response selection limits short delay time to flat response.
(2) Zone interlocking, PowerNet, or both features can be added at the factory by adding suffixes ZG, PN or ZGP respectively to above part number.

Digitrip OPTIM 1050 Electronic Circuit Breakers with Interchangeable Rating Plugs

Maximum
Continuous
Ampere
Rating
at 40°C 		Circuit Breaker Frame Only Digitrip
OPTIM Rating
Plug Only
L – Adjustable Long Delay Pickup (I r ) with Adjustable Long Delay Time (I 2 t or I 4 t Response) (1)
S – Adjustable Short Delay Pickup with Adjustable Short Delay Time (I 2 t or Flat Response)
I – Adjustable Instantaneous Pickup
G – Adjustable Ground Fault Pickup with Adjustable Ground Fault Time Delay (I 2 t or Flat Response)
A – Adjustable Ground Fault Alarm with Adjustable Ground Fault Time Delay (I 2 t or Flat Response)

OPTIM 1050 (2)
LSIG LSIA Ampere
Rating 		Fixed
Rating Plug
Three-Pole Standard Interrupting Capacity 600 Vac Rated 50 kAIC at 480 Vac
800 ND3800T106W ND3800T107W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 ND312T106W ND312T107W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120
Three-Pole High Interrupting Capacity 600 Vac Rated 65 kAIC at 480 Vac
800 HND3800T106W HND3800T107W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 HND312T106W HND312T107W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120
Three-Pole Ultra High Interrupting Capacity 600 Vac Rated 100 kAIC at 480 Vac
800 NDC3800T106W NDC3800T107W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 NDC312T106W NDC312T107W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120

NOTES:
(1) Long delay I 4 t response selection limits short delay time to flat response.
(2) One Form C auxiliary switch and one Form C bell (trip) alarm switch supplied with breaker as standard.
(3) Factory sealed.

100% Rated Digitrip OPTIM 550 Circuit Breakers with Interchangeable Rating Plugs

Maximum
Continuous
Ampere
Rating
at 40°C 		Circuit Breaker Frame Only Digitrip
OPTIM Rating
Plug Only
L – Adjustable Long Delay Pickup (I r ) with Adjustable Long Delay Time (I 2 t or I 4 t Response) (1)
S – Adjustable Short Delay Pickup with Adjustable Short Delay Time (I 2 t or Flat Response)
I – Adjustable Instantaneous Pickup
G – Adjustable Ground Fault Pickup with Adjustable Ground Fault Time Delay (I 2 t or Flat Response)
A – Adjustable Ground Fault Alarm with Adjustable Ground Fault Time Delay (I 2 t or Flat Response)

OPTIM 550 (2)
LSI LSIG LSIA Ampere
Rating 		Fixed
Rating Plug
Three-Pole Standard Interrupting Capacity 600 Vac Rated 50 kAIC at 480 Vac
800 CND3800T52W CND3800T56W CND3800T57W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 (3) CND312T52W CND312T56W CND312T57W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120
Three-Pole High Interrupting Capacity 600 Vac Rated 65 kAIC at 480 Vac
800 CHND3800T52W CHND3800T56W CHND3800T57W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 CHND312T52W CHND312T56W CHND312T57W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120
Three-Pole Ultra High Interrupting Capacity 600 Vac Rated 100 kAIC at 480 Vac
800 CNDC3800T52W CNDC3800T56W CNDC3800T57W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 (3) CNDC312T52W CNDC312T56W CNDC312T57W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120

NOTES:
(1) Long delay I 4 t response selection limits short delay time to flat response.
(2) Zone interlocking, PowerNet, or both features can be added at the factory by adding suffixes ZG, PN or ZGP respectively to above part number.
(3) Includes conductor extension kit, which increases breaker length 3.75 on each end. Terminal ordered separate.

100% Rated Digitrip OPTIM 1050 Circuit Breakers with Interchangeable Rating Plugs

Maximum
Continuous
Ampere
Rating
at 40°C 		Circuit Breaker Frame Only Digitrip
OPTIM Rating
Plug Only
L – Adjustable Long Delay Pickup (I r ) with Adjustable Long Delay Time (I 2 t or I 4 t Response) (1)
S – Adjustable Short Delay Pickup with Adjustable Short Delay Time (I 2 t or Flat Response)
I – Adjustable Instantaneous Pickup
G – Adjustable Ground Fault Pickup with Adjustable Ground Fault Time Delay (I 2 t or Flat Response)
A – Adjustable Ground Fault Alarm with Adjustable Ground Fault Time Delay (I 2 t or Flat Response)

OPTIM 1050 (2)
LSIG LSIA Ampere
Rating 		Fixed
Rating Plug
Three-Pole Standard Interrupting Capacity 600 Vac Rated 50 kAIC at 480 Vac
800 CND3800T106W CND3800T107W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 CND312T106W CND312T107W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120
Three-Pole High Interrupting Capacity 600 Vac Rated 65 kAIC at 480 Vac
800 CHND3800T106W CHND3800T107W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 CHND312T106W CHND312T107W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120
Three-Pole Ultra High Interrupting Capacity 600 Vac Rated 100 kAIC at 480 Vac
800 CNDC3800T106W CNDC3800T107W 400 ORPN80A400
450 ORPN80A450
500 ORPN80A500
550 ORPN80A550
600 ORPN80A600
700 ORPN80A700
800 ORPN80A800
1200 CNDC312T106W (4) CNDC312T107W 600 ORPN12A600
700 ORPN12A700
800 ORPN12A800
1000 ORPN12A100
1200 ORPN12A120

NOTES:
(1) Long delay I 4 t response selection limits short delay time to flat response.
(2) One Form C auxiliary switch and one Form C bell (trip) alarm switch supplied with breaker as standard.
(3) Factory sealed.

Type ND High Instantaneous (K)

Continuous
Ampere
Rating
at 40°C 		Three-Pole Four-Pole
800 ND3800WK ND4800WK
HND3800WK HND4800WK
1200 ND312WK ND412WK
HND312WK HND412WK

NOTES:
(1) Long delay I 4 t response selection limits short delay time to flat response.
(2) One Form C auxiliary switch one Form C bell (trip) alarm switch supplied with breaker as standard
(3) Factory sealed.
(4) Includes conductor extension kit, which increases breaker length 3.75 on each end. Terminal ordered separate.
(5) Neutral is in right pole.
Molded case switch will trip above 14,000 amperes.
For UL listed, series tested molded case switch application data, refer to Eaton.

Accessories Selection Guide and Ordering Information

N-Frame circuit breakers use Cu/AI terminals as standard. When optional copper or Cu/AI terminals are required, order by catalog number. Specify if factory installation is required.

TA700NB1 TA1000NB1 TA1200NB1 TA1201NB1 T700NB1 T1000NB1

Line and Load Terminals

Maximum Breaker
Amperes 		Terminal Body
Material 		Wire
Type 		AWG Wire Range/
No. Conductors 		Metric Wire
Range mm 2 		Part Number
Standard Cu/AI Pressure Terminals
700 Aluminum Cu/AI 1–500 kcmil (2) 50–240 TA700NB1
1000 Aluminum Cu/AI 3/0–400 kcmil (3) 95–185 TA1000NB1 (1)
1200 Aluminum Cu/AI 4/0–500 kcmil (4) 120–240 TA1200NB1 (1)
1200 Aluminum Cu/AI 500–750 kcmil (3) 300–400 TA1201NB1 (1)
Optional Copper and Cu/AI Pressure Type Terminals
700 Copper Cu 2/0–500 kcmil (2) 70–240 T700NB1
1000 Copper Cu 3/0–500 kcmil (3) 95–240 T1000NB1
1200 Copper Cu 3/0–400 kcmil (4) 95–185 T1200NB3

NOTES:
(1) Terminal rating is AL9CU.
(2)Terminal rating is AL7CU.

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