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Robertshaw 5300-615 electric thermostat kit with 72 in capillary tube

Robertshaw

Robertshaw 5300-615 Electric Thermostat Kit 72 in

SKU CH-NB4X-HWRKT

Electric thermostat kit with a 72 in capillary tube for AC and refrigeration control

  • 72-inch capillary allows flexible placement in tight HVAC cabinets
  • 3/8-inch sensing bulb diameter fits standard refrigeration wells
  • 2-inch stem length suits common control-panel cutouts
  • 4-1/2-inch bulb length improves temperature response accuracy
  • Robertshaw 5300-615 kit includes thermostat and capillary assembly

Robertshaw 5300-615 Electric Thermostat Kit

The Robertshaw 5300-615 is an electric thermostat kit designed for temperature control in air conditioning and refrigeration systems. It includes a 72 inch capillary tube for remote sensing installation. The kit suits HVAC technicians servicing commercial or residential cooling equipment. New condition ensures reliable operation from first use.

Suited for systems needing remote bulb sensing

This kit fits applications where the thermostat body must sit away from the temperature source. The 3/8 inch sensing bulb diameter and 4 1/2 inch length match standard wells in many units. Installers requiring a different capillary length or bulb size should look at other models. The 2 inch stem length may not suit all mounting configurations.

Capillary tube length 72 inches

The 72 inch capillary tube is the primary specification that determines fit. It sets the maximum distance between the thermostat control and the sensing bulb location. Verify this length matches the routing path in your equipment before purchase. Model 5300-615 identifies this specific kit configuration.

How it compares

Measured against everything we stock in Coolers & Refrigeration Parts, at today’s prices. Recalculated every night.

Price $122.99
Pricier than about 72% of the 161 comparable items (median $49.99).

Specifications

Product
Brand nameROBERTSHAW

Questions about this item

How do I verify the 72 in capillary tube is functioning correctly after installation?

After setup, observe the thermostat cycling the compressor on and off at the set temperature; the 72 in capillary transmits bulb temperature changes to the switch mechanism, so consistent cycling confirms proper operation.

What components are included in the Robertshaw 5300-615 kit and what must be purchased separately?

The kit supplies the electric thermostat body, a 72 in capillary tube, a 3/8 in diameter sensing bulb measuring 4 1/2 in long, and a 2 in stem; mounting hardware, wiring connectors and any required adapters are not included.

Which Robertshaw thermostat version should I choose for a system needing a 72 in capillary reach?

Select the 5300-615 model when the distance between the control location and the sensing point requires the full 72 in capillary tube length; shorter-capillary variants would not span that distance.

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