Dwyer德威尔L4 L4-NH L4-SS L4-SS-NH L4-BSPT L4-SS-BSPT防爆液位开关

产地	美国
产品认证	CE
工作压力	X
品牌	DWYER德威尔
型号	L4

Service:Liquids compatible with wetted materials.Wetted Materials:Float and Rod: 316 SS; Body: Brass or 316 SS standard; Magnet Keeper: 430 SS standard, 316 SS or nickel optional.Temperature Limits:4 to 275°F (-20 to 135°C) standard, MT high temperature option 400°F (205°C) [MT option not UL, CSA, ATEX or IECEx]. ATEX and IECEx options: Ambient temperature -4 to 163°F (-20 to 73°C); Process temperature -4 to 163°F (-20 to 73°C).Pressure Limit:Brass body 1000 psig (69 bar), 316 SS body 2000 psig (138 bar). Standard float rated 100 psig (6.9 bar). For other floats, see options.Enclosure Rating:Weatherproof and Explosion-proof. **Listed with UL and CSA for Class I, Groups C and D; Class II, Groups E, F, and G. ATEX CE 0344 EX II 2 G Ex d IIB T6 Gb -20°C≤Tamb?°C. -20°C≤Process Temp?°C. EC-Type Certificate No.: KEMA 03 ATEX 2383. ATEX Standards: EN60079-0: 2009; EN60079-1: 2007. IECEx Certified: For Ex d IIB T6 Gb -20°C≤Tamb?°C. -20°C≤Process Temp?°C. IECEx Certificate of Conformity: IECEx DEK 11.0071. IECEx Standards: IEC 60079-0: 2007; IEC 60079-1: 2007.Switch Type:SPDT snap switch standard, DPDT snap switch optional.Electrical Rating:UL, FM, ATEX and IECEx models: 10 A @ 125/250 VAC (V~). CSA models: 5 A @ 125/250 VAC (V~); 5 A res., 3 A ind. @ 30 VDC. MV option: 1 A @ 125 VAC (V~); 1 A res., .5 A ind. @ 30 VDC. MT option: 5 A @ 125/250 VAC (V~). [MT and MV option not UL, CSA, FM, ATEX or IECEx]Electrical Connection:UL and CSA models: 16 AWG, 6" (152 mm) long. ATEX and IECEx units: terminal block.Conduit Connection:3/4" (19.05 mm) female NPT standard or M25 with -BSPT option.Process Connection:1-1/2" (38.10 mm) male NPT or 1-1/2" (38.10 mm) male BSPT standard, 2-1/2" (63.50 mm) male NPT or 2-1/2" (63.50 mm) male BSPT standard optional floats.Mounting Orientation:Horizontal installation standard, optional vertical top mount.Deadband:3/4" (19 mm) for standard float.Specific Gravity:0.7 minimum with standard float. For other floats see Options/Accessories page.Weight:4 lb 9 oz (2.07 kg).Agency Approvals:ATEX, CE, CSA, FM, IECEx, UL**.**No Housing Option (-NH) has no approvals.