Hi-Limit, 5/16″ dia, 12″Cap, SPST, Screw Terminal, Coates 61L/E-6 | 22003820

$110.60

Manufacturer part number	22003820
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SKU: 22003820 Category: Pool Heater Sensors & Switches

Description
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Hi-Limit, 5/16″ dia, 12″Cap, SPST, Screw Terminal, Coates 61L/E-6 | 22003820

Safeguarding Your Heating System with the Coates Hi-Limit Switch

Product Overview

The Hi-Limit Switch, model 22003820, is a critical safety component designed to protect your heating system. This replacement switch, suitable for Coates 61L/E-6 heaters, automatically cuts power to the heater if the water temperature exceeds a safe threshold, preventing potential damage or hazardous situations.

Detailed Specifications

Part Number: 22003820
Temperature Rating: 121°F
Amperage: 25A
Bulb Diameter: 5/16″
Capillary Length: 12″
Switch Type: SPST (single pole, single throw)
Terminals: Screw
Compatibility: Coates 61L/E-6 heaters
Warranty: Manufacturer’s warranty

Exploded parts diagram: This part is shown as item #11 on the Coates CE/CPH/PHS Series Heater Replacement Parts exploded parts diagram.

🔧 Coates CE/CPH/PHS Series Heater Replacement Parts – exploded parts diagram

Coates CE/CPH/PHS Series Heater Replacement Parts exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.

No.	Part
–	_32018CE
–	_32024CPH
–	46-225-1014
–	46-225-1016
–	46-225-1018
–	46-225-1020
–	46-225-1022
–	46-225-1024
–	46-225-1026
–	46-225-1028
–	46-225-1030
–	46-225-1032
–	46-225-1034
–	46-225-1036
–	46-225-1038
–	46-225-1040
–	46-225-1044
–	46-225-1050
–	46-225-1052
–	46-225-1054
–	46-225-1056
–	46-225-1058
–	46-225-1060
–	46-225-1062
–	46-225-1064
–	46-225-1066
–	46-225-1068
–	_12412CE
–	_12415CE
18	Time Delay Fuse, Coates, 60A, 480v, SC
17	Contactor, Coates, 3P, 40A, 208v
16	Contactor, Coates, 4 pole, 50 amp, 208/240V coil
14	Relay, Coates, 240V, Q-12DS Flow Switch
13	Coates Gasket, Cph, Phs, Ce
12	46-225-W001K12
11	Hi-Limit,5/16" dia,12"Cap,SPST,Screw Terminal,Coates 61L/E-6 ◀ this part
10	Rocker Switch, Coates, SPDT, 230v, Lighted, OEM
9	Indicator Light, Coates
8	Coates Heater Thermostat #22002150
7	Transformer Coates, 480v, 240v, 50va
6	FLOW SWITCH FROM COATES #23000105
2	Light Bonding Lug, American Products, Aqualumin/II
1	Terminal Block, HydroQuip, Screw, 2-14AWG

Reliable Temperature Monitoring

The Hi-Limit Switch utilizes a sensitive thermal sensor with a 12-inch capillary tube to constantly monitor the water temperature. If the temperature reaches 121°F, the switch will immediately interrupt power to the heater, ensuring your system remains within a safe operating range.

Automatic Safety Cutoff

This Hi-Limit Switch provides an added layer of protection by automatically cutting power to the heater in the event of a temperature spike. This eliminates the need for manual intervention, enhancing the overall safety of your heating system.

Easy Installation

Designed with a 5/16-inch diameter bulb and screw terminals, the Hi-Limit Switch can be easily integrated into your Coates 61L/E-6 heater’s dry well or groove tube, providing a straightforward upgrade or replacement for your existing safety components.

Specifications Table

Specification	Value
Part Number	22003820
Temperature Rating	121°F
Amperage	25A
Bulb Diameter	5/16″

Capillary Length | 12″ | | Switch Type | SPST | | Terminals | Screw | | Compatibility | Coates 61L/E-6 heaters | | Warranty | Manufacturer’s warranty |

Safeguard your heating system with the reliable Hi-Limit Switch, model 22003820. Ensure the safety and longevity of your equipment with this essential Coates-compatible replacement component.

🔧 Exploded diagram and parts

This part belongs to the Coates CE/CPH/PHS Series Heater Replacement Parts assembly. Everything listed below is something we stock for it, and the numbers match the diagram.

No.	Part	Our part number	Availability
1	Terminal Block, HydroQuip, Screw	34-0024-K	3 in stock
6	FLOW SWITCH FROM COATES #23000105	23000105	9 in stock
7	Transformer Coates, 480v, 240v, 50va	22012200	Available to order
8	Coates Heater Thermostat #22002150	22002150	6 in stock
9	Indicator Light, Coates	29034620	Available to order
10	Rocker Switch, Coates, SPDT, 230v, Lighted, OEM	23001521	2 in stock
13	Coates Gasket, Cph, Phs, Ce	44000250	3 in stock
14	Relay, Coates, 240V, Q-12DS Flow Switch	21006010	4 in stock
16	Contactor, Coates, 4 pole, 50 amp, 208/240V coil	21001300	Available to order
17	Contactor, Coates, 3P, 40A, 208v	21001000	8 in stock
18	Fuse, Sc-60	29018910	7 in stock

Parts that go with this

	Part	Our part number	Availability
	Silicone Based Lubricant 1oz 00150	00150	343 in stock
	O-Ring Chart, Aladdin	MG1	17 in stock

Pole/Throw	Single Pole Single Throw (spst)
Electrical Connection	Screw Terminal
Hi-Limit Application	Coates
Hi-Limit Style	Capillary
Capillary Length	12"
Bulb Diameter	5/16"
Bulb Length	3"
Hi-Limit Amperage	25A
H Part#	47-225-1605