Leeds & Northrup Company

Leeds & Northrup 420 Type-P Controller 120V 1A Cat 420-20-3-0104-21-2-1-100-300

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SKU:
9624
MPN:
420
Condition:
Used
Availability:
Usually ships within 1-2 business days.
Weight:
10.00 LBS
Shipping:
Calculated at Checkout
  • Leeds & Northrup 420 Type-P Controller – three-quarter front-left view showing front panel display, output indicator, and analog setpoint dial
  • Leeds & Northrup 420 Type-P Controller – rear and left-side view showing card-edge connector and mounting hardware
  • Leeds & Northrup 420 Type-P Controller – rating plate close-up showing model, cat. no. 420-20-3-0104-21-2-1-100-300, serial, power, and output specs
  • Leeds & Northrup 420 Type-P Controller – internal access panel showing four adjustment knobs: Proportional Gain, Rate Time, Repeats/Minute Reset, and Approach
  • Leeds & Northrup 420 Type-P Controller – front panel close-up showing percentage bar scale, AUTO mode button, and ETEC System Number tags
  • Leeds & Northrup 420 Type-P Controller – front face close-up showing analog percentage indicator, circular setpoint dial, and unit label reading Unit 2 ZIC-120 MFL Feed Valve
$95.00
Was: $200.00
Current Stock: 1

Sold Out

Description

Leeds & Northrup 420 Type-P Controller 120V 1A Cat 420-20-3-0104-21-2-1-100-300

Analog PID process controller designed for industrial process control applications. The 420 Type-P features proportional, rate, and reset control modes with selectable local or remote setpoint operation.

Specifications & What's Included

  • Input Voltage: 120V AC, 50/60Hz
  • Power Requirements: 14 VA
  • Output: 120V AC, 1 Amp
  • Control Modes: Proportional, Rate, Reset (Repeats/Minute), Approach
  • Setpoint Mode: Local/Remote selectable
  • Operating Mode: Auto/Manual selectable
  • Form Factor: Panel/Rack Insert Module
  • Unit only; labeled ETEC System Number on front panel

Applications

The 420 Type-P was used in industrial process control systems, particularly in manufacturing and utility applications requiring proportional control. These controllers were commonly integrated into larger control systems and instrumentation racks for temperature, pressure, and flow regulation. Historical use spans utility automation, chemical processing, and industrial HVAC applications.

Condition: Used
This Leeds & Northrup 420 Type-P process controller has been inspected and appears to be in good used condition overall. The aluminum housing shows general surface soiling and light wear consistent with industrial service, and the rating plate and front panel markings are legible. The four internal adjustment knobs (Proportional Gain, Rate Time, Repeats/Minute Reset, and Approach) are present and intact. The front panel percentage indicator strip and circular setpoint dial are visible and appear undamaged. The card-edge connector on the rear is present. This unit was previously labeled for an ETEC system application (Unit 2 ZIC-120 MFL Feed Valve) as seen on the front panel tags. It has not been powered or tested at our facility. Please view our photo set and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
Leeds & Northrup
Model:
420 Type-P
MPN:
420-20-3-0104-21-2-1-100-300
Secondary Model:
177545
SKU:
9624
Type:
Analog PID Process Controller
Input Voltage:
120V AC, 50/60Hz
Power Requirements:
120V AC, 50/60Hz, 14 VA
Output Voltage:
120V AC
Output Current:
1 Amp
Control Modes:
Proportional, Rate, Reset (Repeats/Minute), Approach
Setpoint Mode:
Local / Remote selectable
Operating Mode:
Auto / Manual selectable
Form Factor:
Panel/Rack Insert Module
Country/Region of Manufacture:
United States
Condition:
Used – Pulled from Working Environment
Seller Notes:
Unit only; labeled ETEC System Number application on front panel tags.
Condition Notes:
Leeds & Northrup 420 Type-P controller in good used condition with typical industrial wear. Four internal adjustment knobs intact. Not powered or tested at our facility. Pulled from industrial service. Contact us with questions.
California Prop 65 Warning:
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov
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