UR6-31
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COMPONENTS High-speed DC circuit-breakers for Rolling Stock Type UR6, UR10 and UR15

General information UR6, UR10 and UR15 are DC high-speed current limiting circuit-breakers with natural cooling, trip free, single pole, bi-directional, with electromagnetic blow-out, electric control circuits and direct over-current instantaneous release. Of open type construction, the UR6, UR10 and UR15 can also be delivered with protective enclosure IP55 for roof or under-frame mounting on traction vehicles. These circuit-breakers are primarily designed to protect main and auxiliary circuits of DC traction vehicles against shortcircuits and overload currents, as well as to connect or...

Data for product selection MAIN HIGH VOLTAGE CIRCUIT Maximum operational voltage Rated insulation voltage Rated operational current Conventional free air thermal current <1' Operational category Over-voltage category Rated short-circuit making and breaking capacity / Time constant Direct over-current instantaneous release <4' Power frequency withstand voltage U5 - Between opened main contact [kV] 8 8 8 - Between closed main contact and earth & control circuit [kV] 10 10 10 - Between low voltage circuits and earth [kV] 2 2 2 Rated impulse withstand voltage Uimp [kVDC] 18 18 18 Maximum peak...

Information for product integration Main dimensions The DIN-ISO 2768-1 coarse tolerances are applied to these dimensions. All dimensions are in mm. The maximum allowed atness deviation of the support frame is 0.5 mm. (1) Space needed for the removal of the arc chute (2) Space needed for the removal of the auxiliary housing Insulation distances Minimum insulation distances [mm] UR6 To insulating wall UR10 UR15 90 90 90 55 55 55 C* 0 0 0 A 350 350 350 B 200 200 200 C* To earth A B 150 150 150 Weights Weights (1) [Kg] UR6 UR15 Arc chute 900V 5 UR10 27 28 29 Arc chute 1800V 37 38 39 (1) Weights...

Low voltage control scheme Electric holding: E type Magnetic holding: M type A B Ie C D E A S V= S V= + D C 100% + 100% B Ie F E 0 0,5 R1 G t [s] ~ 5% 1 Customer scope A B C D E Rp Rs 0 – F t [s] 0 ~ 20% 0,5 Sécheron scope 1 tc tc+0.5 tc+1 – Customer scope Start of the closing pulse: the contacts F + G close. Closing pulse: 0.5 to 1 s. Start of the holding current: the contact G opens. Holding: a R1 resistance limits the holding current to 5% of the closing current. Opening: the contact F opens to provoke the interruption of the holding current. A B C D Sécheron scope Start of the closing...

Low voltage interface Without protective enclosure Conguration with 2 auxiliary switches Conguration with 6 auxiliary switches Direct connection on auxiliary switches and closing coil. Low voltage cables goes through the glands of the auxiliary contacts housing. With protective enclosure Connector Harting type HAN: Note!: Low voltage connectors are delivered with all pins mounted. Harting type HAN 18 (Standard for 2a + 2b auxiliary switches) Harting type HAN 28 (Standard for 6a + 6b auxiliary switches) Connector type VEAM: Note!: Low voltage connectors are delivered with all pins mounted....

Low voltage wiring diagrams Legend of the schemes Circuit-breaker main contact Varistor on coil Circuit-breaker closing coil a b 1a+1b - Switch PF Direct connection (Conguration without protective enclosure) Auxiliary contacts - 2a + 2b conguration V (1) 3 1 3 1 B U Auxiliary contacts- 6a + 6b conguration (1) 3 1 3 1 3 1 3 1 A 4 2 3 1 B C D E F 4 2 4 2 4 2 4 2 4 2 4 2 E 4 2 V (1) U (1) 1 3 (1) Double cable only for 24VDC control voltage Harting type HAN connector (Standard for protective enclosure) Only the pins related to your selected conguration page 12 will be wired according to the...

Options (subject to additional costs) Protective enclosures The TDP/TDS enclosures for UR6-31/UR10-41/UR15-41 or UR6-32/UR10-42/UR15-42 can be directly mounted on the vehicle’s roof or under the vehicle’s frame. UR6-31/UR10-41/UR15-41 UR6-31/UR10-41/UR15-41TDS/TDP UR6-31/UR10-41/UR15-41 Weight with breaker: 46/48 kg ( IP55) TDP TDS Example of TDP box xing on the vehicle’s roof 36 5 8± 15 30 35 5 5 69 373 LV Note!: Color for URxx.31/41 enclosure is black. UR6-32/UR10-42/UR15-42 UR6-32/ UR10-42/UR15-42 TDS/TDP UR6-32/UR10-42/UR15-42 Weight with breaker: 60 / 62 kg ( IP55) TDS Example of TDS...

Cable glands type selection Cable glands standard configuration The high voltage cable gland plate will be delivered assembled according to the diagram shown below. The customer himself, can easily change the position of these glands and protection caps according to his own needs.

Designation code for separately ordered mobile connector (for optional protective enclosure) Mobile connector Auxiliary switches Device Number Type Fixed connector type Number of pin Size 2.5 mm² Cable gland Size 1.5 mm² Sécheron’s number Overall width: XX [mm] (1) Connector SG102955R00001 SG102955R00003 Harting HAN 18 4 431 SG100025R00007 (for 24VDC) 14 460 SG102955R00004 PF 431 SG102955R00002 2a+2b 460 430 M32 UR6 UR10 UR15 6a+6b PF Harting HAN 28 4 24 4 2a+2b PF M32 8 VEAM type 13 pins PG29 2 10 SG100025R00008 (for 36-110VDC) 430 30 0 SG100025R4 (for 24VDC) 430 SG100025R1 (for 36-110VDC)...