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YOU ARE HERE: HVAC / Ventilating / Air Proving Switches
Air Pressure Sensing Switches  AFS Series - Adjustable From .03" - 12" WC - RSS Series for OEM Applications Designed for Residential Furnaces and Light Commercial Applications
- DFS Series - Fixed Set Points
- ANA Series for OEM Applications
- DDP Series Provides Dual Switching
- PAS Series for Pneumatic applications
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AFS Family: Switches With Field-Adjustable Set Points -
Series AFS Switches are designed for HVAC, Energy Management, and Direct Digital Control (DDC) applications. -
Adjustable set points are available in 0.03" to 2.00" or 0.03" to 12.00"w.c. ranges. -
Wiring connections may be open or enclosed. -
Many terminal styles, sample line connectors and mounting brackets are available. -
Optional features include manual reset, visual set point indicator, operation indicator, alarm light, single or multiple time delay configurations, and NEMA-rated housings. SET POINT RANGE, INCHES W.C. | MODEL | ENCLOSED SWITCH MODULE | MOUNTING BRACKET | SAMPLE LINE CONNECTORS | TERMINATION STYLES | ELECTRICAL CONTACT TYPE | APPROVALS, LISTINGS, RECOGNITION UL FM CSA CE | .03-2.0"w.c. | AFS-398 | . | A | C | A | SPDT | . |
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| .05-2.0"w.c. | AFS - 148 |
| A | A | B | SPDT | . |
| . | . | AFS - 150 - 112 |
| D | E | C | SPST-NO | . |
| . | . | AFS - 155 |
| A | A | A | SPDT | . |
| . | . | AFS - 156 |
| LEFT-SIDE | C | C | SPST-NO | . |
| . | . | AFS - 179 |
| B | B | C | SPST-NO | . |
| . | . | AFS - 181 | . | A | A | A | SPDT | . | . | . | . | AFS - 202 | . | LEFT-SIDE | C | C | SPST-NO | . |
| . | . | AFS - 219 |
| A | C | C | SPST-NO | . |
| . | . | AFS - 232 |
| B | A | D | SPDT | . | . | . | . | AFS - 246 |
| RIGHT-SIDE | C | B | SPST-NO | . |
| . | . | AFS - 249 - 112 |
| A | E | C | SPST-NO | . | . | . | . | AFS - 262 | . | A | C | A | SPDT | . | . | . | . | AFS - 271 |
| A | C | B | SPDT | . | . | . | . | AFS - 273 |
| C | C | B | SPDT | . | . | . | . | AFS - 275 - 112 |
| A | E | B | SPDT | . |
| . | . | AFS - 299 |
| D | C | C | SPST-NO | . |
| . | . | AFS - 399 - 112 |
| D | E | B | SPDT |
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| AFS - 414 |
| A | C | D | SPST-NO | . |
| . | . | AFS - 432 | . | C | C | A | SPDT | . |
| . | . | AFS - 438 | . | B | B | A | SPDT | . | . | . | . | AFS - 440 |
| B | B | A | SPDT | . |
| . | . | AFS - 442 | . | A | A | A | SPDT | . | . | . | . | AFS - 447 | . | RIGHT-SIDE | C | A | SPDT | . |
| . | . | AFS - 449 | . | NONE | C | A | SPDT | . |
| . | . | .10-2.0"w.c. | AFS - 477 | . | A | C | A | SPDT (Gold) | . |
| . | . | .05-12.0"w.c. | AFS - 256 |
| A | C | A | SPDT | . |
| . | . | AFS - 145 | . | A | A | A | SPDT | . | . | . | . | AFS - 222 | . | A | C | A | SPDT | . | . | . | . | AFS - 227 |
| A | C | A | SPDT | . | . | . | . | AFS - 228 |
| A | C | B | SPDT | . | . | . | . | AFS - 236 | . | B | B | A | SPDT | . |
| . | . | AFS - 238 |
| C | C* | A | SPDT | . | . | . | . | AFS - 240 | . | C | C* | A | SPDT | . | . | . | . | AFS - 298 - 112 |
| A | E | B | SPDT | . |
| . | . | AFS - 405 | . | A | C | B | SPDT (Gold) | . |
| . | . | AFS - 409 | . | C | C* | A | SPDT | . |
| . | . | AFS - 410 |
| Flat Strap | C | A | SPDT (Gold) | . |
| . | . | AFS - A | . | B | B | A | SPDT | . | . | . | . | AFS - D - AO |
| B | B | B | SPDT | . | . | . | . | .40-12.0"w.c. | AFS - 460 | . | A | C | A | SPST-NC (manual reset) | . |
| . | . | 1.25-12.0"w.c. | AFS - 460- DSS | . | A | C | A | SPST-NC (manual reset) | . |
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