Mfr Part #:

752-1

The White Rodgers 752-1 is an automatic change-over switch with SPDT control, designed for combination hot and chilled water systems. It operates zone valves based on thermostat demand.

✓ Total Stock: 7 pcs

$ Price Range: $1.20

752-1 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Bristol Electronics ✓ Non-Authorised Inventory information	7 pcs On Request	7 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

752-1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	White Rodgers
Ambient Temperature	221°F

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752-1 Description

Short technical summary and product information.

The White Rodgers 752-1 is an automatic change-over switch featuring SPDT control. It is designed to automatically switch a thermostat's signal to operate a zone valve in combination hot and chilled water systems. The switch connects the heating side of the thermostat to a two-wire zone valve when hot water is circulated, and the cooling side when chilled water is circulated.

Key specifications include an SPDT switch action, motor ratings of 7.5A full load and 45.0A lock rotor at 120VAC, and 3.75A full load and 22.5A lock rotor at 240VAC. It has a pilot duty rating of 125 VA and a resistive rating of 15A at 120/240/277VAC. Electrical connections are made via 12-inch leads (red, brown, black) rated for 105°C.

Temperature settings include Red-Black open on rise at 85°F and close at 70°F, and Red-Brown close on rise at 85°F and open at 70°F. The maximum ambient temperature is 221°F. This model is designed for use with 1/2" tubing (5/8" O.D.).

The epoxy resin seal protects the bimetallic disc and snap-action contacts from dust, dirt, and corrosion. A removable spring clip is included for attaching the control to tubing.

752-1 Quick Information

Product Type: Automatic Change-Over Switch

Series: 752-1

Canonical Name: White Rodgers 752-1 Automatic Change-Over Switch

752-1 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

752-1 Estimated Pricing

Qty	Low	High
1+	$1.20	$1.20

Estimated market price range - modelled values for guidance only, not live distributor offers.

752-1 Features

SPDT switch for automatic change-over.
Operates zone valves in hot/chilled water systems.
Rated for 120/240VAC motor applications.
Temperature settings at 85°F and 70°F.
Sealed contacts protect against dust and corrosion.

752-1 Applications

Ideal for combination heating/cooling systems.
Automates zone valve operation.
Used with two-wire zone valves.
Suitable for hydronic systems.

752-1 FAQs

7 frequently asked questions generated from this part’s specifications.

What is the switch action of the White Rodgers 752-1?

The switch action is SPDT.

What are the motor ratings for the 752-1 switch?

The motor ratings are 7.5A full load and 45.0A lock rotor at 120VAC, and 3.75A full load and 22.5A lock rotor at 240VAC.

What is the pilot duty rating for the 752-1?

The pilot duty rating is 125 VA at 120/240/277VAC.

What are the temperature settings for the Red-Black leads?

The Red-Black leads open on rise at 85°F and close at 70°F.

What are the temperature settings for the Red-Brown leads?

The Red-Brown leads close on rise at 85°F and open at 70°F.

What is the maximum ambient temperature for the 752-1?

The maximum ambient temperature is 221°F.

What size tubing is the 752-1 designed for?

The 752-1 is designed for use with 1/2" tubing (5/8" O.D.).