This product is part of SAFETY
Relevant applications:


3-phase capillary safety limiter with manual reset.



  • Factory pre-set fixed temperature
  • Failsafe safety capillary
  • Independent non self resetting safety
  • Double pole single throw version (DPST)
  • Multiple mounting, electrical connection and reset knob configurations


The liquid within the capillary is transformed to vapour with an abnormal increase in temperature.  The increase in volume acts on a mechanism to open electrical contacts.  The limiter is manually resettable.  In case of damage to the capillary the fail-safe limiter operates automatically.

Technical characteristics
  • BSDP
Type 20A 3-pole safety limiter
Safety limiter temperature Positive, 70°C to 125°C / 158 to 257°F
Manual reset Near to mounting brackets
Rating 20A - 240V / 15A - 400V
Material Copper, glass reinforced polyester compound
Capillary length Up to 2000mm / Up to 78"
Safety limiter capillary Spiralled or single / double / triple bent capillary
Connections Brass or nickel plated faston terminals, screw terminals
Approvals CE conformity, ENEC mark according to EN-60730-1, EN 60730-2-9, ROHS conformity
Technical drawings