Four-level 2" NPT adapter-mount switch set with R4 receptacle. Four independent switch points on one nipple. Polypropylene handles water, water-based coolants, soaps, detergents, and dilute acid/alkaline solutions.
| Quantity | Price |
|---|---|
| 1–2 | $2,137.70 |
| 3–4 | $1,876.82 |
| 5–9 | $1,644.90 |
| 10–10 | $699.48 |
The 10-404 is the flange-mounted four-level switch set — identical to the 10-403 in switch count and nipple architecture, but using a bolted flange nut mount instead of a 2" NPT threaded adapter. The 10-700-FN flange nut and 10-700-FS flange nut with seal provide the tank interface; the 10-700-R4 four-level receptacle seats above. Four 10-782 switches on the precision nipple, three 10-700-S4 spacers, single 10-700-WC-NY liquid-tight connector. Outside-in, no internal access required.
Same NL formula, same BD and CD dimensions as the 10-403. Select the 10-404 when the tank has a flange-lid port or when a bolted flange connection is preferred over a threaded 2" NPT adapter.
Polypropylene for water-based and mild chemical service.
| Specification | Value |
|---|---|
| Mount | 2″ NPT via 10-700-AS Adapter |
| Housing | 10-700-R4 Receptacle |
| Install | Outside → In (no internal access required) |
| Switch Levels | 4 |
| Switch Element | 10-782 magnetic reed switch |
| Contact Rating | 70 VA, 50W resistive | UL File E70063 |
| NL Formula | NL = LL − 2.20″ (55.9 mm) |
| BD (min) | 1.5″ (38.10 mm) |
| CD (min) | 1.5″ (38.10 mm) |
| Nipple Range | 1–70 in, ordered separately (10-715) |
| Compliance | RoHS |
| Material | Polypropylene |
A float level switch like the 10-403-PP is a point-level device: a float rides the liquid and actuates a magnetic reed switch at a set height, giving a simple on/off signal — no power, no firmware, no calibration. "Sensors" usually means continuous measurement (ultrasonic, radar, capacitive). ERECTA SWITCH targets reliable discrete-point control.
The 10-403-PP is used for pump start/stop control, high-level overflow protection, low-level dry-run protection, and tank or reservoir level alarms in OEM equipment. The modular ERECTA SWITCH system is built into laundry, HVAC, water-treatment, hydraulic, and chemical-handling machinery.
Choose the material to match the media: Polypropylene (PP) for general aqueous, acids, and bases; Acetal (AC/Delrin) for solvents, fuels, and hydrocarbons; Kynar PVDF (KR) for aggressive or harsh chemicals. Every ERECTA SWITCH model is offered in all three materials.
The 10-403-PP is point-level — it provides a discrete on/off signal at a set height. For multiple switch points, use a multi-level extended-stem set (2-, 3-, or 4-level) instead of a single continuous sensor.
ERECTA SWITCH offers vertical top-mount, bulkhead, and extended-stem configurations, plus side-mounted single-point models. The mount style is part of the model number — select the configuration that matches your tank geometry.
Point detection is repeatable and mechanical. The trip height on the 10-403-PP is set by the 10-715 Precision Nipple, ordered separately in 1-inch increments (1″–70″), so you place the switch point exactly where the application needs it.
Our engineering team can verify compatibility with your application and chemistry before you order.