Instrukcja obsługi Murphy Temperature SWICHGAGE A25 Series

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AT-95026B
A20 and A25 Series
Revised 08-05
Catalog Section 10
®
Temperature SWICHGAGE
2 and 2-1/2 in. (51 and 64 mm) Dial
**
■
Corrosion Resistant Polycarbonate Case
■
Indicating Gage and Limit Switch
■ Switch Can Activate Alarms and/or Shut
Down Equipment
■
Critical/High Temperature Limit Switch
Is Visible and Adjustable (Most Models)
A20T Series
shown
■
Contact(s) Isolated From Ground
®
Case: Glass filled/Polycarbonate, corrosion-resis- A20TL and A25TL SWICHGAGE
Description
tant; steel mou

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® ® E E 250 250 G G 120 120 A A G G 230 230 H H C C 100 100 I I W W 210 210 Dimensions A20 Series Models (typical) A25 Series Models (typical) 2-1/4 in. 2-1/2 in. 2-29/32 in. 2-1/2 in. (57 mm) (64 mm) (74 mm) (64 mm) °F °F Mounting Clamp °C Mounting TEMPERATURE Clamp °C TEMPERATURE † Capillary 1-27/64 in. 2-1/16 in. (53 mm) 4 ft. (1.2 m) † Mounting hole dia. (36 mm) Capillary long 4 ft. (1.2 m) Contact 1-11/32 in. long Adjustment 2-11/16 in. (68 mm) (34 mm) 1/16 in. hex Mounting hole dia. 1

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Magnetic Switch ® INDUCTIVE AND HIGH CURRENT LOADS REQUIRE THE USE OF A TATTLETALE Magnetic Switches show the cause of shutdown for applica- ® MAGNETIC SWITCH. The SWICHGAGE contacts are for light-duty elec- tions that include: capacitor discharge or magneto ignitions, battery systems and trical switching to operate alarms or control devices. Murphy manufactures the electric motor driven equipment. Typical wiring diagrams are shown below. ® Magnetic Switch for protection of the pilot-duty SWICHG

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How to Order To order, use the diagram below. List options in ascending alphabetical order (A-Z). Example: A20T-B1-250-4. ____ – ____ – ____ – ____ – ____ Base Model ††† Adapter Nuts A20T A20TG 1/8 = 1/8-27 NPT Metric A20TL A25T 1/4 = 1/4-18 NPT M10 = 10 mm x 1.5 A20TO A25TL 3/8 = 3/8-18 NPT M12 = 12 mm x 1.5 3/8B = 3/8-19 BSPT M14 = 14 mm x 1.5 A20TE A25TE 3/8K = 3/8 NPSF M16 = 16 mm x 1.5 A20TABS A25TABS †††† – = 1/2-14 NPT M18 = 18 mm x 1.5 A20TB A25TH 1/2B = 1/2-BSPT M