Watlow Series CZR - Manual (Page 2)

2 WATLOW Series CZR User's Guide
Control Mode
• Zero cross
Operator Interface
• Command signal input
• Input signal indication LED
Input Command Signal
• Input Type DC1
• Turn ON voltage 4VÎ (dc) max., turn OFF voltage 1VÎ (dc) min.
• Input current: DC typ. 10mA @ 4VÎ (dc), 13mA @ 32VÎ (dc)
• Input Type AC1
• 90-140Vrms, must turn ON at 90 VÅ(ac), must turn OFF
at 10VÅ(ac)
• Input current: 15mA typical @ 120VÅ(ac)
Output Voltage
• 24 volt; 24VÅ(ac) min. to 280VÅ(ac) max.
• 480 volt: 48VÅ (ac) min. to 530VÅ(ac) max.
• 600 volt: 48VÅ (ac) min. to 660VÅ(ac) max. (not available on 18
amp version)
• Off State Leakage
1mA at 25°C/77°F max. for 600VÅ(ac) models; 10mA at
25°C/77°F max. for 24 through 480VÅ(ac) models
• Holding current: 250mA max.
Output Amperage
• See output rating curve on page 1. Ratings are into a resistive
heater load.
Max. surge current
16.6mSec
250 625 1000
24 Output Amperage 34 42
260
625
18
1620 1620 4150 Max. I 2 t for fusing
Agency Approvals
• Class II construction
• UL 508 recognition file number E73741
• CSA file LR 700195
The Series CZR is warranted to be free of defects
in material and workmanship for 24 months after
delivery to the first purchaser for use, providing
that the units have not been misapplied. Since
Watlow has no control over their use, and some-
times misuse, we cannot guarantee against failure.
Watlow's obligations hereunder, at Watlow's option, are limited
to replacement, repair or refund of purchase price, and parts
which upon examination prove to be defective within the
warranty period specified. This warranty does not apply to dam-
age resulting from transportation, alteration, misuse, abuse or
improper fusing.
1. Call Customer Service: 507-454-5300, or fax: 507-452-4507,
for a Return Material Authorization (RMA) number before
returning any item for repair.
2. Make sure the RMA number is on the outside of the carton,
and on all paperwork returned. Ship on a freight prepaid basis.
3. A restocking charge of 20% of the net price applies for all
returned stock controls and accessories in like new condition
and within 120 days after shipment. Non-stock and modified
stock items are not returnable.
4. If the unit is unrepairable, it will be returned to you with a let-
ter of explanation. Repair costs will not exceed 50% of the
original cost.
Specifications (1992)
Warranty
Ordering Information (1993)
Recommended Semiconductor Fuses
CZR Model Fuse* Fuse Holder
18A 17-8025 17-5110
24A 17-8030 17-5114
34A 17-8040 17-5114
42A 17-8063 17-5122
*Recommended at base rating.
Returns
• 2006/95/EC CE Low Voltage Directive
Output Terminals
• Compression type
• For 18 amp models:
• Maximum wire size 3.0mm (10 AWG), torque to 0.6Nm (5.3
in. lbs.)
• For 24 to 42 amp models:
• Maximum wire size 16.0mm (6 AWG stranded), torque to
1.5-1.7Nm (13-15 in. lbs.)
Operating Environment
• Up to 80˚C/176˚F. See output rating curves for your application.
• 0 to 90% RH, non-condensing.
• Insulation only tested to 3,000 meters.
• Units are suitable for “Pollution degree 2.”
• Cycle time should be less than 3 seconds.
Mounting
Options include DIN rail or standard back panel mounting.
• The DIN rail specification:
DIN EN 50022,
35mm x 7.5mm.
• Min. clipping distance:
34.8mm (1.37 in).
• Max. clipping distance:
35.3mm (1.39 in)
• Mount cooling fins vertical
Weight/Dimensions
• 260g (9.2 oz.)
• 24 to 42 amp models: 100 mm (3.95 in) high x 45 mm (1.75
in) wide x 109 mm (4.3 in) deep
• 18 amp models: 100 mm (3.95 in) high x 22.6 mm (0.89 in)
wide x 99 mm (3.9 in) deep
Specification subject to change without notice.
Part Number C — — — - A — — V - — — — 0
Control Mode
Z = Zero cross
Output Amperage
18 = 18 amp
24 = 24 amp
34 = 34 amp
42 = 42 amp
Output Voltage
24 = 24 to 280VÅ (ac)
48 = 48 to 530VÅ (ac)
60 = 60 to 660VÅ (ac)
Input Type (Contactor)
DC1 = 4 to 32VÎ (dc)
AC1 = 90 to 140VÅ (ac)
NOTE: Do not use the AC1 input type models with temperature
control outputs that include an AC snubber filter. This could
cause the CZR to stay full on.