Cutler-Hammer Digitrip OPTIM 550 - OPTIM Trip Unit;Accessory Specifications

I.B. 29C891B
Page 18
Effective 11/98
Table 2.2 OPTIM Trip Unit/Accessory Specifications
Environment:
• Operating Temperature -20°C to 85°C
• Storage Temperature -30°C to 85°C
• Operating Humidity 0 to 95% Relative Humidity
(non-condensing)
Frequency 50/60Hz
Protective Settings Refer to Table 3.1
Zone Selective Interlocking • Short Delay
• Ground Fault
Metering Tolerance Refer to Table 2.3
Auxiliary Switch/Bell Alarm
• Contact Ratings • AC - 6A @ 600 Vac
• DC - 0.5A @ 125 Vdc
0.25A @ 250 Vdc
Ground Fault Indicator • AC Contact Ratings
(Style 1259C14G01) - 5A @ 240 Vac
- 1/6 HP @ 120 Vac
- 1/3 HP @ 240 Vac
• DC Contact Ratings
- 5A @ 28 Vdc
- 0.5A @ Vdc
• Power Source
- 120 Vac
- 50/60 Hz
• Dimensions (inches)
- 4.75 x 3.94 x 3.00
Potential Transformer Module (PTM)
(Catalog DOPTMLN, Style 7801C54G01)
• Input voltage terminals LA, LB and LC
• Rated input voltage 0 to 600 volts line to line
• Input volt amps 1 VA per phase
• Output voltage terminals A, B, C and N
• Ratio ± 2% (Input) (Output)
240V L-L 2.25V L-N
480V L-L 4.50V L-N
600V L-L 5.53V L-N
• Dimensions (inches) 4.75 x 5.75 x 3.28
• One PTM Can supply up to 16 L or N-Frame
Circuit Breakers
Power Supply
Optim Trip Units impsoe a load of 45ma at 24 Vdc. The power supply should be
a high quality, isolated unit with both UL (UR) and CE labels.
Cause of Trip Battery
• Type Lithium, 3 volt
• Acceptable Replacement • Varta Batteries, Inc.
150 Clarbrook Road
Elmsford, NY 10523
Type CR 1/3N
• Duracell
South Broadway
Tarrytown, NY 10591
Type DL 1/3N
• Sanyo Electric, Inc.
Battery Div.
200 Riser Road
Little Ferry, NJ 07643
Type CR 1/3N
TRIP UNITS
ACCESSORIES