POPULAR MODELS

Model Number	Description	Price
102-WT-7810-C-60	Flanged chamber type level control, SPDT snap switch.	£ 647.00

*Prices quoted exclude carriage and VAT which will be added where appropriate in accordance with legislation in force at the date of supply. E&OE. Orders are accepted subject to Dwyer Instruments Ltd Standard Terms and Conditions of Sales and none others whatsoever.

Click the Model Number of the item to add the item to your shopping cart.

VIEW YOUR SHOPPING CART

MODEL CHART - SERIES 102/1102

EXAMPLE	102	WT	7810	10	C1	60	12	102-WT-7810-C1-60 Liquid Level Control with flanged chamber enclosure, SPDT snap action switch, fixed deadband, automatic reset, Operating pressure 400 psig (28 bar) at 425°F (218°C), side/bottom, side/side mounting standard with 1" NPT connections, minimum specfic gravity 0.60.
	1102	WT	7810	10	C1	40		Same as 102 Series except minimum specific gravity is 0.40.
ENCLOSURES		G						General purpose, NEMA 1.	UL
		WT						Water-tight, NEMA 4, 4X.	UL
		E						Explosion-proof, Class I Groups B, C, D, Class II Groups E, F, G, NEMA 7, 9.	UL
		EV						Explosion-proof, vapor proof, Class I Groups B, C, D, Class II Groups E, F, G, NEMA 7, 9.	UL
CIRCUITS (for electrical circuits see charts below)			48XX					Single stage, mercury switch, see chart A or C below.
			48XX	XX				Two stage, mercury switch, see chart A or C below.
			78XX					Single stage, snap switch, see chart B or D below.
			78XX	XX				Two stage, snap switch, see chart B or D below.
			78XXHM					Hermetically sealed snap switch, see chart B below.
			98XX					Single stage, high capacity DC snap switch, use heat fins (HF) if process temperature excced 350°F (177°C), do not exceed 450°F (232°C), see chart B or D below.
			98XX	XX				Two stage, high capacity DC snap switch, use heat fins (HF) if process temperature excced 350°F (177°C), do not exceed 450°F (232°C), see chart B or D below.
CHAMBER CONSTRUCTION					C			Cast iron chamber, pressure rating 300 psig (22 bar) at 425°F (218°C).	UL
					C1			Cast steel chamber, pressure rating 400 psig (28 bar) at 425°F (218°C).	UL
					C216			Cast 316SS chamber, float and rod, armature 430SS, pressure rating 400 psig (28 bar) at 425°F (218°C).	UL
						40		Minimum specific gravity 0.40.
						60		Minimum specific gravity 0.60.	UL
OPTIONS							12	Breather and drain for E type enclosure. Recommended for high humidity or outdoor service.

CHARTS A & B - ELECTRICAL CIRCUITS AND RATINGS - SERIES 102

SWITCH TYPE	SWITCH ACTION	ELECTRICAL RATINGS IN AMPS						ORDERING CODE
		AC			DC			SINGLE STAGE	TWO STAGE
		120V	240V	440V	30V	125V	250V		LOWER	UPPER
CHART A Mercury Contacts	SP-ST open on level FALL	10	5	3†		10	5	-4821	-4821	-21	UL
	SP-ST open on level RISE	10	5	3†		10	5	-4820	-4820	-20	UL
	SP-DT one switch	4	2	1†		4	2	-4810	-4810	-10	UL
	SP-DT two switches E.I.*	10	5	3†		10	5	-4815	-4815	-15	UL
	DP-ST two switches E.I.* open on level FALL	10	5	3†		10	5	-4813	-4813	-13	UL
	DP-ST two switches E.I.* open on level RISE	10	5	3†		10	5	-4814	-4814	-14	UL
	DP-DT two SP-DT switches	4	2	1†		4	2	-4806	-4806	-06	UL
CHART B snap action contacts	SP-DT one switch	12	5	3†		0.5**	0.25**	-7810	-7810	-10	UL
	DP-DT Two SP-DT switches	12	5	3†		0.5**	0.25**	-7806	-7806	-06	UL
	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	-06
	SP-DT one switch	10	3			10‡	3‡	-9810	-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.