Honeywell L408J1009 Vaporstat Controllers provide operating control & automatic high limit protection for vapor heating systems with pressures up to 4 psi (8 kPa). All models have Microswitch snap switches to open or close a circuit on a pressure rise.
• Stainless steel diaphragm made for use with liquids, air, noncombustible gases, ammonia, oxygen, distilled water and similar media.
• Provide SPDT switching.
• Clear plastic cover allows observation of the pressure settings.
• Mount using hexagonal fitting with 1/4 in. NPT internal threads for direct mounting to the 14026 (steel) or 50024585-001 (brass) Steam Trap (siphon loop).
• Ground Screw terminal.
| Description | Vaporstat® Controllers, 0 oz/in2 to 16 oz/in2 |
| Application | Provide operating control and automatic limit protection for pressure systems with pressures up to 4 psi (8 kPa) |
| Operating Range (psi) | 0 to 16 oz/in2 |
| Operating Range (kPa) | 0 to 6.9 kPa |
| Mounting | 1/4 in. NPT internal thread or surface mount through back of case |
| Switch Operation | Auto recycle |
| Switching Action | SPDT make R-W, break R-B on pressure rise |
| Sensor Element | Stainless Steel diaphragm |
| Pipe Connections, Main or High Pressure | 1/4 in. NPT internal thread |
| Dimensions (in.) | 5 1/8 in. high x 4 1/2 in. wide x 4 1/2 in. deep. |
| Dimensions (mm) | 130 mm high x 114 mm wide x 114 mm deep. |
| Switch Contact Ratings (120 Vac) | 8.0 AFL, 48.0 ALR, 10.0 A resistive |
| Switch Contact Ratings (240 Vac) | 5.1 AFL, 30.6 ALR, 5.0 A resistive |
| Pressure Differential (psi) | 2 to 16 oz/in2 |
| Pressure Differential (kPa) | 0.9 to 6.9 kPa |
| Differential Type | Subtractive |
| Temperature Range (F) | -35 F to +150 F |
| Temperature Range (C) | -37 C to +66 C |
| Electrical Connections | Screw terminals |
| Approvals, Underwriters Laboratories Inc | Listed: File No. MP466, Guide No. MBPR |
| Approvals, Canadian Standards Association | Certified: File No. LR1620, Guide No. 400-E-O |
| Approvals, Swiss RE (formerly IRI) | Acceptable |
