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Specifications

Model 421
Input Voltage Range 100-130VAC or 200-250VAC
Frequency 50/60Hz
Power Consumption 0.5 VA max.
Nominal Current 2.5 amps
Minimum Current 0.25 amps
Current Adjustment 0 - 5 amps x PF
Current Output 4-20mA for chart recorders
Repeat Accuracy 1 % (fixed conditions)
Output SPDT 10A at 240VAC resistive
Expected Relay Life Mech: 10 million operations
Elec: 100,000 operations at rated load
Trip Delay OFF or 0.3 to 180 seconds
Restart Delay OFF or 0.1 to 4 hours
Indicators Red LED: Overload or Underload; tripped
Yellow LED: Restart timing
Transient Protection 2500V for 10ms
Operating Temp - 20° to 131° F
Humidity Tolerance 97% w/o condensation
Enclosure Material ABS plastic
Weight 1 lb.
Agency Approvals UL Listed to US and Canadian safety standards CSA Certified

Downloads

Document File Type File Size Download
Model 421 Datasheet PDF aaa KB