LEFOO TS Capillary Temperature Controller Family
LEFOO TS is a capillary temperature controller family for bulb temperature. The distinction between a flow, pressure, temperature, protective or remote-actuator contact matters when selecting replacements.
Model Identification & Key Specifications
Original Manufacturer Data
LEFOO TS is single-bulb SPDT thermal switch control, not a pressure device. Range family TS30 −30…0°C, TS15 −15…15°C, TS40 0…40°C, TS90 40…90°C and TS120 70…120°C; original online table unexpectedly prints T590, whereas maker PDF labels TS90, verify ordered name. OEM direct single-phase motor only below 1kW, otherwise use controller/contactor. SPDT 110VAC non-inductive 20A / 220VAC 10A; inductive full-load 15A / 8A. Temperature capillary sensor and control circuit must be insulated/located properly.
Match the original sensor bulb and mounting, ambient/media operating range, automatic/manual reset circuit, inductive load and exact order code. A thermal trip is not identical to a pressure trip. No independently matched OEM model photo or current exact order-code ATEX/IECEx approval is claimed.
AirAlign Engineering & Variant Comparison
The online maker table includes an apparent T590 / TS90 naming inconsistency. The temperature sensing capillary cannot be replaced by a pressure switch, and direct motor control is limited by the maker’s contact/HP rules—use suitable relay/contactor for larger motors.
Always identify whether the part measures a continuously variable signal, provides a discrete protective trip or controls an operating cycle. Component substitution should preserve sensing topology, switching hysteresis, reset and energized/deenergized states. Enclosure and cable routing must be assessed within the actual equipment, not only against a standalone catalogue illustration.
Installation and Integration Checks
Check supply voltage, relay versus transistor wiring, contact NO/NC state and peak inductive duty. Signal outputs are not equivalent to motor-control contacts.
Distinguish temperature difference from independent thermal limits, and paddle/piston/calorimetric flow measurement from pressure differential. Match actual calibration media.
Mount as specified for the device’s reference sensor or mechanical paddle; verify working medium, housing, ingress protection, maximum process temperature and cable/port fittings.
Confirm applicable safety function and approvals for the exact order-code revision. CE/UL/TÜV product claims do not establish ATEX/IECEx protection without matching certificate scope.
Related Products
LEFOO TSD · LEFOO LF55T · LEFOO manufacturer profile
Official Manufacturer Sources
Independent AirAlign engineering page. Device-specific maker photo and current exact-variant third-party approvals require separate verification.
TS series — bulb temperature and electrical loads
LEFOO TS capillary controllers include different maker temperature-range families, so a TS30 cold-range control is not mechanically or thermally equivalent to a TS120 warmer-process model. Confirm bulb and capillary length, insertion/thermal contact, switch differential and SPDT terminal assignment for the exact model. Contact ratings vary with motor versus resistive duty and may require an external contactor. A capillary control should not replace an independent certified boiler or refrigeration safety limit without approval.