255-250-DNDN-UL YOKOGAWA, 255-250-DNDN-UL Datasheet - Page 31

• Manufacturer Part Number: 255-250-DNDN-UL
• Description: FREQUENCY PANEL METER MODEL 255-2 55-65HZ 240VAC UL
• Manufacturer: YOKOGAWA

Specifications of 255-250-DNDN-UL

• Meter Range: 55Hz To 65Hz
• Meter Size/dimensions: 2.5" X 2.5"
• Scale Length: 2.06"
• Meter Function: Frequency

† Replacement meters for conduit-mounted case models not available as a separate item. However, motors can be supplied as a renewal part.
50-HERTZ RATINGS FOR NEW BIG LOOK
For 50 Hz service simply select the identical 60 Hz catalog
number and change letters 7 & 8 as follows:
BACK-OF-PANEL — 60 Hz
CONDUIT-MOUNTED CASE 2
240213 * * AB
Motor
208/240
208/240
Volt
AC
120
480
120
480
AA = 120V, 60 Hz
AB = 240V, 60 Hz
AC = 480V, 60 Hz
AD = 120V, 50 Hz
AE = 240V, 50 Hz
AF = 480V, 50 Hz
AG = 208V, 60 Hz
AH = 208V, 50 Hz
Register in Minutes
240 003 AAAA
240 003 ABAA
240 003 ACAA
240 253 AAAF
240 253 ABAF
240 253 ACAF
1
⁄
2
Nonreset Type
-INCH — 60 Hz
Register in Hours
240 001 AAAA
240 001 ABAA
240 001 ACAA
240 251 AAAF
240 251 ABAF
240 251 ACAF
OPTIONAL 3-STUD MOUNTING
For 3-stud mounting option (3
the identical 4-stud catalog number and change letters 9 & 10 as
follows:
Conduit case #M1273GU-A can be ordered as a replacement item for
the 240 25***** elapsed time meter assembly or for use with a 2
Look meter.
240313AA**
AB = Std 4 stud mounting (2 1/2” x 3 1/2” New Big Look)
AC = Optional 3 stud mounting (3 1/2” New Big Look)
AD = 4 mounting holes (2 1/2” square case)
AE = 3 mounting holes (2 1/2” round case)
AF = conduct mounted (2 1/2” New Big Look)
Register in Minutes
240 004 AAAA
240 004 ABAA
240 004 ACAA
1
⁄
2
" New Big Look only) simply select
Reset Type
Register in Hours
240 002 AAAA
240 002 ABAA
240 002 ACAA
1
⁄
2
" Big
25