NDC3800T106W — Digitrip OPTIM 1050 Electronic Circuit Breakers with Interchangeable Rating Plugs

Number of Poles	Amperes	Interrupting Capacity	Terminals
3	800	Ultra-High Digitrip RMS 1050+ LSIA	Line / Load

Digitrip RMS 310 Trip Unit KEY:
L – Adjustable Long Delay Pickup (By Adjustable Rating Plug)
S – Adjustable Short Delay Pickup with Fixed Short Delay Time (I2t Response) or Adjustable Short Delay Time (Flat Response)
I – Adjustable Instantaneous Pickup by Setting Short Delay Time to Instantaneous
G – Adjustable Ground Fault Pickup with Adjustable Ground Fault Delay (Flat Response)

Quick Reference Guide

UL 489 Interrupting Capacity Ratings(1)
Circuit Breaker Type	Number of Poles	Interrupting Capacity (kA Symmetrical Amperes) Volts AC (50/60 Hz)
		240	277	480	600
ND	2, 3, 4	65	—	50	25
CND(2)	2, 3, 4	65	—	50	25
HND	2, 3, 4	100	—	65	35
CHND(2)	2, 3, 4	100	—	65	35
NDC	2, 3, 4	200	—	100	65
CNDC(2)	2, 3, 4	200	—	100	65
NDU(3)	3	300(4)	—	150	75(5)

IEC 947-2 Interrupting Capacity Ratings(1)
Circuit Breaker Type	Number of Poles	Interrupting Capacity (kA Symmetrical Amperes) Volts AC (50/60 Hz)
		240	415	690
ND
Icu	2, 3, 4	85	50	20
Ics	2, 3, 4	85	50	10
CND(2)
Icu	2, 3, 4	85	50	20
Ics	2, 3, 4	85	50	10
HND
Icu	2, 3, 4	100	70	25
Ics	2, 3, 4	100	50	13
CHND(2)
Icu	2, 3, 4	100	70	25
Ics	2, 3, 4	100	50	13
NDC
Icu	2, 3, 4	200	100	35
Ics	2, 3, 4	100	50	18
CNDC(2)
Icu	2, 3, 4	200	100	35
Ics	2, 3, 4	100	50	18

NOTES:
(1) Utilization Category A circuit breakers.
(2) 100% rated breakers.
(3) 800 amperes maximum rating.
(4) Successfully tested at 300 kAIC, although UL recognizes maximum of 200 kAIC at 240 Vac.
(5) Successfully tested at 75 kAIC, although UL recognizes maximum of 65 kAIC at 600 Vac.

Specifications

Trip Unit Type	Digitrip OPTIM 550	Digitrip OPTIM 1050
rms sensing	Yes	Yes
Breaker Type
Frame	N	N
Ampere range	400–1200A	400–1200A
Interrupting rating at 480 volts	50, 65, 100 (kA)	50, 65, 100 (kA)
Protection
Ordering options	LSI, LSIG, LSI(A)	LSI(A), LISG
Fixed rated plug (In)	Yes	Yes
Overtemperature trip	Yes	Yes
Long Delay Protection (L)
Adjustable rating plug (In)	No	No
Long delay pickup	0.4–1.0 x (In)	0.4–1.0 x (In)
Long delay time I2t	2–24 seconds	2–24 seconds
Long delay time I4t	1–5 seconds	1–5 seconds
Long delay thermal memory	Yes	Yes
High load alarm	No	0.5–1.0 x Ir
Short Delay Protection (S)
Short delay pickup	150–800% x (Ir)	150–800% x (Ir)
Short delay time I2t	100–500 ms	100–500 ms
Short delay time flat	100–500 ms	100–500 ms
Short delay time zone selective interlocking	Yes	Yes
Instantaneous Protection (I)
Instantaneous pickup	200–800% x (In)	200–800% x (In)
Discriminator	Yes	Yes
Instantaneous override	Yes	Yes
Ground Fault Protection (G)
Ground fault alarm	20–100% x (Is)	20–100% x (Is)
Ground fault pickup	20–100% x (Is)	20–100% x (Is)
Ground fault delay I2t	100–500 ms	100–500 ms
Ground fault delay flat	100–500 ms	100–500 ms
Ground fault zone selective interlocking	Yes(1)	Yes
Ground fault thermal memory	Yes	Yes
System Diagnostics
Status LEDs	Yes	Yes
Cause of trip LEDs	Yes	Yes
Magnitude of trip information	Yes	Yes
Remote signal contact— ground alarm	Yes(1)	Yes
Local auxiliary and bell alarm contact	Optional	Included
System Monitoring
Digital display	Yes(1)	Yes(1)
Current	Yes	Yes
Power and energy	No	Yes
Power quality—harmonics	No	Yes
Power factor	No	Yes
Communications
Eaton PowerNet	No(2)	Yes
Testing
Testing method	OPTIMizer, BIM, PowerNet	OPTIMizer, BIM, PowerNet

Legend BIM = Breaker Interface Module (A) = GF Alarm Is = Sensor Rating In = Rating Plug Ir = Long Delay Pickup Setting

Notes: (1) By OPTIMizer/BIM. (2 Eaton’s PowerNet kit.

NDC3800T106W Dimensions

Number of Poles	Width	Height	Depth
2, 3	8.25 (209.6)	16.00 (406.4)	5.50 (139.7)
4	11.13 (282.6)	16.00 (406.4)	5.50 (139.7)