重型焊接碳钢腔室的高压能力提供了坚固的重型控制，在100°F(38°C)下可运行1750 psi (121 bar)，在500°F(260°C)下可运行1650 psi (114 bar)，*低比重为0.60。 电气外壳适用于通用NEMA 1，耐候型NEMA 4X，防爆或防爆型NEMA 7, 9组B, C, D, E, F, G, I和II级要求。电气要求是通过使用密封的快速动作或水银开关在各种行动，包括SPST, SPDT, DPDT和DPST安排。 可选电路可用于低电流、低直流电压、高直流电流或高温应用。 检查模型图，找出*适合的开关。

C1-60:Minimum specific gravity 0.60. Process pressure 1750 psig (121 bar) at 100°F (38°C), 1650 psig (114 bar) at 500°F (260°C).

Temperature Limit:Ambient Temperature: 212°F (100°C); Process Temperature: up to 500°F (260°C).

Switch Type:Snap switch or mercury. See Model Chart.

Electrical Rating:Electrical Rating: See Model Chart.

Wiring Connections:G, WT or E enclosure: terminal block; EV enclosure: 18" (460 mm) leads.

Process Connections:Combination 1" NPT/socket weld hubs or flanges. See Model Chart.

Enclosures:G: painted steel and aluminum; WT: painted steel, aluminum and neoprene; E: aluminum; EV: aluminum, neoprene.

Wetted Parts:C1 construction is carbon steel, 303SS, 304SS and 430SS.

Weight:1261: 79 lb (36 kg); 1263: 89 lb (40 kg); 1264: 92 lb (42 kg).

Suggested Specifications:
Liquid level control shall be 1261 (1263) (1264) Series with 1" combination NPT/socket weld hub (flanged) process connections. Chamber shall be welded and suitable for operation at 1650 psi (114 bar) and 500°F (260°C) with a minimum specific gravity of 0.60. Circuit shall be (hermetically sealed) snap action (mercury) switch (SPST) (SPDT) (DPDT). Enclosure shall be general purpose (weatherproof) (explosion-proof) (explosion-proof – vapor proof). Switch mechanism shall be gravity return and shall be activated by a stainless steel float

Model Chart