POPULAR MODELS

Model Number	Description	Price	Lead Time
201-WT-7810-C1-60	Chamber type level control, side mounted, SPDT snap switch.	$854.25	Non-stocked

*Prices are based in US currency and may change for international customers due to and not limited to customs brokerage fees, export packing and documentation, tariffs, duty and taxes.

MODEL CHART - SERIES 201

EXAMPLE	201	WT	7810	10	HF	C1	60		201-WT-7810-60 Liquid Level Control, welded carbon steel chamber, weatherproof enclosure, SPDT snap switch, fixed deadband, automatic reset, side/bottom process connections, combination 1" NPT/socket weld hubs, minimum specific gravity 0.60, operating pressure 600 psig (51 bar) at 100°F (38°C), 500 psi (34 bar) at 750°F (400°C).
ENCLOSURE		G							General purpose, NEMA 1	UL	CSA
		WT							Weatherproof, NEMA 3R, 4, 4X.	UL
		E							Explosion-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G (CSA approved Groups C, D, E, F, G only).	UL	CSA
		EV							Explosion-proof, vapor proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G (CSA approved Groups C, D, E, F, G only).	UL	CSA
CIRCUITS (for electrical circuits see charts A & B below)			48XX						Single stage, mercury switch, see chart A.
			48XX	XX					Two stage, mercury switch, see chart A.
			78XX						Single stage, snap switch, see chart B.
			78XX	XX					Two stage, snap switch, see chart B.
			78XXHM						Hermetically sealed snap switch, see chart B.
			98XX						Single stage, high capacity DC snap switch, use heat fins (HF) if process temperature exceeds 350°F (177°C), do not exceed 450°F (232°C), see chart B.
			98XX	XX					Two stage, high capacity DC snap switch, use heat fins (HF) if process temperature exceeds 350°F (177°C), do not exceed 450°F (232°C), see chart B.
			10XX						Single stage, high temperature snap switch, continuous rating 800°F (425°C), see chart B, 201-C1-60 type rated 500 psi (34 bar), 201-C1-75 type rated at 650 psi (45 bar).
			10XX	XX					Two stage, high temperature snap switch, continuous rating 800°F (425°C), see chart B, 201-C1-60 type rated 500 psi (34 bar), 201-C-75 type rated at 650 psi (45 bar).
WELDED CHAMBER CONSTRUCTION COMBINATION 1" NPT/SOCKET WELD HUBS									Refer to chart C below for pressure/temperature ratings.
						C1			Carbon steel body.
	201					C1	60		Minimum specific gravity 0.60 side/bottom process connections, combination 1" NPT/socket weld hub.	UL	CSA
	201					C1	75		Minimum specific gravity 0.75 side/bottom process connections, combination 1" NPT/socket weld hub.	UL	CSA
WELDED CHAMBER CONSTRUCTION WITH FLANGED PROCESS CONNECTIONS									Refer to chart C below for pressure/temperature ratings.
	203					C1	160		1" 150# flanges side/bottom process connection.	UL	CSA
	203					C1	175		1" 150# flanges side/bottom process connection.	UL	CSA
	203					C1	360		1" 300# flanges side/bottom process connection.	UL	CSA
	203					C1	375		1" 300# flanges side/bottom process connection.	UL	CSA
	203					C1	660		1" 600# flanges side/bottom process connection.	UL	CSA
	203					C1	675		1" 600# flanges side/bottom process connection.	UL	CSA
	204					C1	160		1" 150# flanges side/side process connection.	UL	CSA
	204					C1	175		1" 150# flanges side/side process connection.	UL	CSA
	204					C1	360		1" 300# flanges side/side process connection.	UL	CSA
	204					C1	375		1" 300# flanges side/side process connection.	UL	CSA
	204					C1	660		1" 600# flanges side/side process connection.	UL	CSA
	204					C1	675		1" 600# flanges side/side process connection.	UL	CSA
OPTIONS					HF				High temperature fins, should be considered if ambient temperature exceeds 500°F (260°C) for extended periods.
								12	Breather and drain for E type explosion-proof enclosure. Recommended for high humidity or outdoor service.

CHARTS A & B - ELECTRICAL CIRCUITS AND RATINGS

SWITCH TYPE	SWITCH ACTION	ELECTRICAL RATINGS IN AMPS					ORDERING CODE
		AC			DC		SINGLE STAGE	TWO STAGE
		120V	240V	440V	125V	250V		LOWER	UPPER
CHART A Mercury Contacts	SP-ST open on level FALL	10	5	3†	10	5	-4821	-4821	-21	UL	CSA
	SP-ST open on level RISE	10	5	3†	10	5	-4820	-4820	-20	UL	CSA
	SP-DT one switch	4	2	1†	4	2	-4810	-4810	-10	UL	CSA
	SP-DT two switches E.I.*	10	5	3†	10	5	-4815	-4815	-15	UL	CSA
	DP-ST two switches E.I.* open on level FALL	10	5	3†	10	5	-4813	-4813	-13	UL	CSA
	DP-ST two switches E.I.* open on level RISE	10	5	3†	10	5	-4814	-4814	-14	UL	CSA
	DP-DT two SP-DT switches	4	2	1†	4	2	-4806	-4806	-06	UL	CSA
CHART B snap action contacts	SP-DT one switch	12	5	3†	0.5**	0.25**	-7810	-7810	-10	UL	CSA
	DP-DT Two SP-DT switches	12	5	3†	0.5**	0.25**	-7806	-7806	-06	UL	CSA
	SP-DT one hermetically sealed switch***	5	5		5**		-7810HM	-7810HM	-10HM
	DP-DT two hermetically sealed SP-DT switches***	5	5		5**		-7806HM	-7806HM	-06HM
	DP-DT two SP-DT switches	10	3		10‡	3‡	-9806	-9806	-06
	SP-DT one switch	10	3		10‡	3‡	-9810	-9810	-10
	DP-DT two SP-DT switches	2	2		0.4**	0.25**	-1006	-1006	-06
	SP-DT one switch	2	2		0.4**	0.25**	-1010	-1010	-10

†Available on special order, change 1st digit in ordering code from 4 to 5 or 7 to 8, i.e., -4820 becomes -5820, -7810 becomes -8810, etc.
‡10 amp inductive (polarized) at 125 VDC.
*Electrically Independent.
**Resistive.
***30VDC = 5 resistive.