1 CIRCUIT BREAKERS FOR EQUIPMENT TM12 Series * Thermal magnetic release * Positively trip-free * Reset or manual actuation The TM12 circuit breaker for equipment (CBE) is a single pole, thermal-magnetically operated device providing small size, low cost and reliable trip-free operation on overloads and short circuits within the maximum breaking capacity. It is intended primarily for the protection of circuit control functions in sensitive instruments etc. It is not generally suitable for line protection unless the prospective short circuit current is less than 200 A at 240 V a.c. (400 A at 28 V d.c.). Threaded neck and flange mounting types are available each with optional push on/push off mechanism, shunt terminal and auxiliary contact. There is also a choice of screw clamp terminals on certain types. The well proven mechanism is designed to open the contacts in the event of overloads. A bimetal strip is heated by the overcurrent and deflects, thereby releasing the latch mechanism. If the overcurrent is sufficiently high, the magnetic release will operate and open the circuit instantaneously. Two characteristics are available. The more commonly used T characteristic has operating limits between 8-12 times the rated current. The optional F characteristic operates at a lower current levels of 4-8 times the rated current. In case of overloads, the contacts will open even if the reset button is manually held in the closed position. This is known as a trip-free feature. The contacts open and close with a snap action and the tripped state is clearly shown by the increased projection of the reset button. After the opening operation, the reset button has to be fully depressed, then released, to effect a closing of the contact. It is impossible to tease the contacts by gentle pressure on the reset button. Available options * * * * * * * * Fast and slow magnetic tripping characteristics Flange type Threaded neck type Type of actuation: reset or manual ON/OFF (push/push) Terminals: quick connect or screw clamp terminals Independent auxiliary contact (change-over contact) Shunt terminal Setting indication on reset button indicates the position of the contacts Special features * * * * * * Competitive pricing Quick connect terminals Choice of mounting styles Positively trip-free Insensitive to shock or vibration UL, CSA, VDE and other approvals Schurter, Inc. * Phone 707-778-6311 * Fax 707- 778-6401 * E-mail info@schurterinc.com * Website http://www.schurterinc.com 193 1 CIRCUIT BREAKERS FOR EQUIPMENT TM12 Effect of ambient temperature Tripping characteristics TMF + TMT The unit is calibrated for an ambient temperature of +23C. To determine the rated current for a lower or higher ambient temperature, use a correction factor from the table below: [ min ] [ sec ] 10'000 Rated current 60 30 20 < 7,0 A 7,0 A 1'000 10 Ambient temp.. +23 C 5 100 1 Correction factor 10 -5 0,87 0 0,90 +10 0,95 +23 1,00 +30 1,05 +40 1,12 +50 1,20 +60 1,30 Example Rated current at +23C Ambient temperature Correction factor Chosen rated current at +50C ambient temperature 5,0 A x 1,2 = 6,0 A 1 TMF TMT 0,1 0,01 Tripping time Ambient temperature [C] 0,001 0,0001 1,05 1,32 2 4 5 Multiple of rated current 8 10 20 50 [ x In 5,0 A +50C 1,2 Technical data Main circuit Rated voltage Ue See approvals, page 195 AC 240 V; DC 28 V Rated current In See approvals, page 195 AC/DC 0,05 - 16 A Conditional short circuit current Inc EN 60 934 PC1, AC 240 V 1000 A Short circuit capacity Icn AC 240 V AC/DC 28 V 200 A 400 A Rated voltage Ue See approvals, page 195 AC 120 V, 240 V; DC 28 V Rated current In See approvals, page 195 1,0; 2,0; 3,0 A Class of protection Between live and accessible parts II Other parts I Auxiliary circuit 194 Schurter, Inc. * Phone 707-778-6311 * *Fax Phone 707-778-6311 Fax707-778-6401 707-778-6401* * E-mail E-mail info@schurterinc.com info@schurterinc.com ** Website Website http://www.schurterinc.com http://www.schurterinc.com 1 CIRCUIT BREAKERS FOR EQUIPMENT TM12 Technical data (continued) Degree of protection Accessible range Termination range IP40 IP00 Dielectric strength Accessible range AC 4000 V Insulation resistance DC 500 V >100 M Endurance Number of cycles at 6 x I n (AC) Number of cycles at I n R-type S-type Permissible ambient temperature 40 5000 -5C to +60C Vibration resistance IEC 68-2-6, Test Fc, 1 mm amplitude 5-60 Hz, 60-500 Hz 10 g Shock resistance IEC 68-2-6, Test Ea 100 g Type of actuation * Reset type * Manual ON/OFF (push/push) R S Type of tripping * Thermal-magnetic * Positively trip-free TM Weight approx. 33 g Approvals Main circuit UL 1077 Auxiliary circuit Rated current range Rated voltage AC Rated voltage DC Rated current 0,05 - 16 A 240 V 28 V 3A Rated voltage AC 28 V 2A 120 V CSA C 22,2 0,05 - 16 A 240 V 28 V 1A 240 V VDE EN 60934 0,05 - 16 A 240 V 28 V 1A 240 V SEMKO 0,05 - 16 A 240 V 1A 240 V NEMKO 0,05 - 16 A 240 V 1A 240 V DEMKO 0,05 - 16 A 240 V 1A 240 V 0,05 - 16 A 240 V 1A 240 V SEV EN 60934 28 V Rated voltage DC 28 V 28 V Schurter, Inc. * Phone 707-778-6311 * Fax 707- 778-6401 * E-mail info@schurterinc.com * Website http://www.schurterinc.com 195 1 CIRCUIT BREAKERS FOR EQUIPMENT TM12 Order code Basic type TM Single pole thermal magnetic overload protection switch, positively trip-free Magnetic release range** F Fast T Slow Mounting style 1 Flange type 2 Threaded neck type M10 x 1, with hexagonal- and knurled nut Actuation type 1 Reset type 2 Manual ON/OFF (push/push) Terminal type 1 6,3 x 0,8 mm quick connect terminals DIN 46244-A 2 Screw clamp terminals* * Not available with S-auxiliary contact or N-shunt terminal Construction variants * S Auxiliary contact N Shunt terminal only for rated currents <7 A R Setting indication on reset button * (S; N; R; SN; SR; NR; SNR) Rated current 0,05 1,1 2,5 0,1 1,2 2,8 0,15 0,2 1,3 1,4 3,0 3,3 0,3 1,5 3,5 0,4 1,6 4,0 0,5 1,7 4,5 0,6 1,8 5,0 0,7 1,9 5,5 0,8 2,0 6,0 0,9 2,1 6,5 1,0 2,3 7,0 7,5 8,0 8,5 9,5 10 11 12 13 14 15 16 9,0 Other rated currents by request ** The magnetic tripping range is valid for AC. For DC the stated magnetic currents are approx. 1,6 x higher. Accessories TZZ 02 T 196 M F 1 2 - 2 1 1 S N R - 0,15 - Protective cover for threaded neck mounted front side IP54 T Z Z 0 2 Order example Phone 707-778-6311 * Fax707-778-6401 707-778-6401* *E-mail E-mailinfo@schurterinc.com info@schurterinc.com* *Website Websitehttp://www.schurterinc.com http://www.schurterinc.com Schurter, Inc. * Phone 707-778-6311 * Fax 1 CIRCUIT BREAKERS FOR EQUIPMENT TM12 Threaded neck type TMx12-211N TMx12-211 Maximum torque 1,5 Nm Maximum torque 1,5 Nm M 10x1 O 5.7 8 10 10 18 14.7 11.6 OFF ON 8 18 14.7 OFF ON M 10x1 O 5.7 Label +0.5 +0.5 48.5 - 0.2 48.5 - 0.2 Label 3 7 8 2 6.3 11.5 4 2 8.6 36 42 0.2 36 6.3 11.5 42 0.2 42 SW 13 13 14.5 14.5 42 SW 3 7 8 2 1 4 2 1 TMx12-212 Cut-out +0.1 11 8.1 - 0.0 Maximum torque 1,5 Nm OFF ON M 10x1 O 5.7 8 16 10 18 14.7 16 with without Anti-rotation protection +0.5 48.5 - 0.2 Label 1 M4 3 7 8 2 42 0.2 13 14.5 42 SW 11.5 Schurter, Inc. * Phone 707-778-6311 * Fax 707- 778-6401 * E-mail info@schurterinc.com * Website http://www.schurterinc.com 197 1 CIRCUIT BREAKERS FOR EQUIPMENT TM12 Flange type TMx12-111 TMx12-111SN 6 45 50 50 O 11.5 13.5 OFF 10.7 ON O 5.7 6 6 O 5.7 Label +0.5 48.5 - 0.2 +0.5 48.5 - 0.2 4 Label 4 13.5 OFF 10.7 ON O 11.5 A 6.3 4 8.6 2 9 4 2 36 6.3 11.5 42 0.2 3 7 8 2 1 3 7 8 2 1 2.5 20.2 36 42 0.2 58 12 0.2 O 4.5 6.3 8.6 11.5 58 12 0.2 O 4.5 TMx12-112 Cut-out Installation from rear 11 19.5 4.5 30.5 50 O 5.7 4.5 6 13.5 OFF 10.7 ON O 11.5 13 13 +0.5 48.5 - 0.2 4 Label Installation from front 12 4.5 1 42 0.2 11.5 42 M4 3 7 8 2 58 O 4.5 12 0.2 4.5 13 198 13 Schurter, Inc. * Phone 707-778-6311 * Fax 707-778-6401 * E-mail info@schurterinc.com * Website http://www.schurterinc.com 1 CIRCUIT BREAKERS FOR EQUIPMENT TM12 Schematic diagrams - accessories - colors Schematic diagrams TM12-... TM12-...N 1 1 TM12-...S 1 TM12-...SN 54 1 I> 2 3 2 2 54 I> 2 3 6 6 Accessories Colors Black Setting display R white Protective transparent cover Degree of protection IP54 TZZ02 Nickel plated Black White label O 16 Nickel plated 2 21 Black galvanized 1 7 8 2 Schurter, Inc. * Phone 707-778-6311 * Fax 707- 778-6401 * E-mail info@schurterinc.com * Website http://www.schurterinc.com 199