Thermal motor protector Temperature limiter Thermal cut-out B 12 Applications - Motors - Transformers - Coils - Electronics, sensors Benefits - Non-sensitive to current - High current rating up to 30A - Manifold executions CANTHERM Technical data control type ratings version rated current at 250 V 50/60 Hz ( power factor 0.95 / 0.6 ) B12A / E B12B / G normally closed normally open 6.3 A / 4.0 A 10.0 A / 6.0 A 13.0 A / 2.1 A 5.0 A / 1.6 A 10,000 5,000 1,000 5,000 switching cycles max. current at 250 V 50/60 Hz ( power factor 0.95 ) 30.0 A switching cycles under max. current 100 temperature rating Ta ( steps in 5 K ) 70 °C ... 160 °C tolerances Standard: ± 5 K feature of automatic action 1.B.M, 2.B, 1.C, 3.C contact resistance ( incl. wire of 100 mm ) < 50 m hysteresis 30 K ± 15 K dielectric strength ( standard insulation ) 2 kV shock- / vibration testing ( similar to EN 50155 ) 400 m/s2 sine half wave / 100 m/s2 5 Hz ... 2.000 Hz sine resistances to impregnation tight against ordinary resins and lacquers degrees of protection provided by enclosures ( EN 60529 ) IP00 suitable for use in protection category I, II VDE / ENEC approvals EN 60730-1 / -2-2 / -2-3 1) /-2-9 UL UL 2111 / UL 873 2) C22.2 No. 77 / C22.2 No. 24 2) CSA 1) 2) 1.B, 3.C different power rating on demand Standard wire (length 100 ± 10 mm, stripped 6 ± 1 mm) lead code temperature max. operating voltage max. L310 150 °C stranded white L340 1.80 mm AWG20 / 0.48 mm2 2.15 mm AWG18 / 0.96 mm2 1.26 mm AWG20 / 0.62 mm2 1.50 mm AWG18 / 0.96 mm2 UL style 3398 600 V L350 solid yellow cross section diameter 300 V L320 200 °C diameter insulation 3557 L410 150 °C 300 V 1.65 mm AWG20 / 0.81 mm 3398 L440 200 °C 300 V 1.71 mm AWG20 / 0.81 mm 1332 Standard insulation control type nc no code illustration drawing dimensions ( mm ) technical specification approvals VDE, UL VDE, UL B12 A B U253 shrink cap potted Attention: Ta max. 155 °C B12 A B U186 cap of PPS potted Specific variations control type nc no B12 A B B12 A B B12 A B12 A B12 B12 E E technical specification approvals not insulated potted VDE, UL, CSA U112 coated VDE, UL B U294 housing of PPS potted VDE, UL B A800 not insulated potted VDE, UL G402 aluminium housing thread M4x6 potted Attention: Ta max. 150 °C VDE, UL G714 brass housing thread M4x5 potted Attention: Ta max. 150 °C VDE, UL G G code illustration drawing dimensions ( mm ) heating [K] Heating by current current [A] The diagram is measured with a thermal control without any insulation in an oil bath. Attention: The heating depends on the thermal conduction of the control to the equipment or part which should be protected. Ordering and marking example Ordering example B12 A 120 Marking 05 L310 100 U253 B12A type (B12 nc) 12005 response temperature (120°C), tolerance (± 5K) shrinkcap insulation length 100 mm lead wire white, AWG20 tolerance temperature normally closed 026D date of manufacture (Feb.2006), country (D=Germany) type Deviations from standard controls on request. Representation office: CANTHERM 8415 Mountain Sights Avenue • Montreal (Quebec), H4P 2B8, Canada Tel: (514) 739-3274 • 1-800-561-7207 • Fax: (514) 739-290 E-mail : [email protected] • Website: www.cantherm.com 09.2006 Subject to change without notice