Title

C O M P O N E N T SC O M P O N E N T S

High-Speed DC Circuit-Breakersfor 3 kVDC rolling stockType UR26, UR36 & UR40

2

General information

The UR26, UR36 & UR40 are DC high-speed, current-limiting, circuit-breakers with natural cooling. They are trip free, single pole, bi-directional and equipped with electromagnetic blow-out, electric control circuits and direct over-current instantaneous release.With its simple design and high insulation level, the UR range offers a very high reliability as well as an exceptionally long lifetime.To guarantee a safe and optimized installation of its circuit-breakers in different environments, Sécheron offers a large range of standard and customized solutions.The circuit-breaker of the UR range can be delivered with an insulating housing, for indoor installation or, for outdoor use, in DC MODBOX® or in a polyester protective enclosure.

DC MODBOX® is a modular platform where the DC cir-cuit-breaker is integrated alone or with other high and low voltage components (contactors, disconnectors, resistors, voltage and current sensors…) in a light and compact metal box. This way, rolling stock manufacturers can be supplied with a fully tested “Plug & Play” unit, easy to install and highly valuable for project management and logistics (refer to brochure SG580044BEN for more details).With its proven worldwide experience and acceptance, Sécheron’s circuit-breaker is the key product to guarantee the highest safety to rolling stock material and to the people operating or using it.

Applications

3 kVDC traction vehicles to protect propulsion and auxiliary equipment.

Main features

• Rated operational voltage 3’600 VDC• Conventional free air thermal current: 2’600 A (UR26), 3’600 A (UR36) and 4’000 A (UR40)• High insulation voltage• High rated short-circuit making and breaking capacity• Limited maximum arc voltage• Operational frequency C3• Electro-magnetic closing with electric holding • Five double contacts auxiliary switches • Pollution degree PD3• A large number of different options to match various application requirements• Optional integrated ECO-Drive control module, to manage the closing - holding sequences, and to save holding energy

consumption and operational costs• Very low maintenance requirements• Proven design with worldwide experience and acceptance• Insulation material according to EN45545-2:2013• Reference standards: EN/IEC 60077-1/3, IEC77, IEC 61373

Breaking current parameters

Iss = Short-circuit currentÎss = Peak of IssId = Setting of over-current releaseÎd = Cut-off currentdi/dt = Initial current rate of riseT = Circuit time constantUe = Rated operational voltageÛarc = Peak of the arc voltageti = Opening timetb = Total break time

Opening time Tl

Relationship between opening time tl and the initial rate of rise of current di/dt for direct instantaneous over-current release.

Example for a di/dt of 3.106 A/s: - For UR26: tl ~ 4.3 ms

Note: For a shorter opening time on low di/dt, the “indirect release” (shunt trip) option can be used (refer to “Options” section page 5).

IEC-60077

Id

Îd

Iss

0.63 Iss

Ut

tti

I

tb

Îss

di/dt

T

Ûarc

Ue

20t l

t l

[ms]18

[ms]

16

14

12

10

8

6

4

2

03.105 5 7 53 37106 107

di/dt [A/s]

UR26

UR36/40

10

8

6

4

2

03.105 5 7 53 37106 107

di/dt [A/s]

UR60/80

3

Data for product selection

Symbol Unit UR26 UR36 UR40

MAIN HIGH VOLTAGE CIRCUIT

Rated operational voltage Ue [VDC] 3’600 3’600 3’600Rated insulation voltage Ui [VDC] 4’800 4’800 4’800Conventional free air thermal current (1) Ith [A] 2’600 3’600 4’000Rated operational current Ie [A] 2’600 3’600 4’000Operational frequency C3 C3 C3Rated power-frequency withstand voltage (50 Hz, 1 min)- Between open main contacts- Between closed main contact and earth & control circuit- Between low voltage circuits and earth

U50[kV][kV][kV]

15152

15152

15152

Rated impulse withstand voltage (1.2/50 μs) Uimp [kVDC] 40 30 30Rated short-circuit making & breaking capacity / Time constant ISS/T1

ISS/T2ISS/T3ISS/T4

[kA]/[ms][kA]/[ms][kA]/[ms][kA]/[ms]

40/035/1535/3035/50

40/035/1535/3035/50

40/035/1535/3035/50

Direct over-current instantaneous release [kA] 1.4 - 2.72.0 - 5.0

2.0 - 5.04.0 - 10.0

2.0 - 5.04.0 - 10.0

Maximum arc voltage [kV] ≤ 8.0 ≤ 8.0 ≤ 8.0(1) At Tamb = +40°C and tested with high voltage connections according to standard IEC/EN 60943.

LOW VOLTAGE AUXILIARY CIRCUIT

Control circuitNominal voltage Un [VDC] 24, 36, 48, 64, 72, 110Range of voltage [0.7 - 1.25] Un

Nominal closing power (2) Pc [W]/[s] 1’300/1Nominal holding power for electric holding (2) [W] 2.3Mechanical opening time (2)(3) to [ms] 15 - 30Mechanical closing time (2)(3) tc [ms] ~ 150

(2) At Un and Tamb = +20°C.(3) When signal is received by the coil.

Auxiliary contactsType of contacts Potential free (PF)Number of auxiliary contacts 5a + 5bRated voltage [VDC] 24 to 110Conventional thermal current [A] 10Switching categories according to EN60947 - AC-15 230 VAC 1.0 A

- DC-13 110 VDC 0.5 AMinimum let-through current at 24 VDC (4) [mA] ≥ 10 (silver contacts)

or 4 ≤ I < 10 (gold contacts)(4) For a dry and clean environment.

Low voltage interfaceType of the connection (5) Harting HAN® 32 (standard)

or VEAM 22 pins (option)(5) Refer to page 5 for mobile connector information.

OPERATING CONDITIONS

Installation Indoor or outdoor (6)

Altitude (7) [m] <1’400Working ambient temperature (8) Tamb [°C] -25 to +70Relative humidity 95 % at 40°CPollution degree PD3Minimum mechanical durability N [Operations] 4 x 50’000 8 x 25’000 8 x 25’000(6) Outdoor with optional enclosure or DC MODBOX® s(refer to page 6 and 7).(7) For altitude >1’400m, please contact Sécheron.(8) For -50°C ≤ Tamb < -25°C a special configuration of DC circuit-breaker can be delivered by Sécheron on request.

4

Main dimensions

Minimum insulating distances (1) [mm]To insulating wall A 45 B 85 C 845

Ie

~ 20%

100%

0

0

0,5 1 tc tc+1tc+0.5

t [s]

D

FE

BA

C

–

SV=+

Rp

Rs

–

+

~ 5%

100%

0 0,5 1

t [s]

SV=

R1

E

F

G

B CA

DIe

E

B

C

A

D

FE

–

SV=+

Rs

Maintien magnétique pour UR60/80(maintien électrique idem que UR26-36-40-46)

UR26/36/40/46

UR60/80

Customer scope

Ie

~ 20%

100%

0

0

0,5 1 tc tc+1tc+0.5

t [s]

D

FE

BA

C

–

SV=+

Rp

Rs

–

+

~ 5%

100%

0 0,5 1

t [s]

SV=

R1

E

F

G

B CA

DIe

E

B

C

A

D

FE

–

SV=+

Rs

Maintien magnétique pour UR60/80(maintien électrique idem que UR26-36-40-46)

UR26/36/40/46

UR60/80

Sécheron scope

Start of the closing pulse: F + G Contacts close

Closing pulse: 0.5 to 1 s

Start of the holding current: G Contact opens

Holding: R1 resistance limits the holding current to 5% of the closing current

Opening: F Contact opens to provoke the interruption of the holding current

–

+

SV=

R1

F

G~ 5%

100%

0 0,5 1

t [s]

EB CA

DIe

HV connectors

(1) Approximate weight for standard circuit-breakers with no option, including maintenance arc chute lifting mechanism.

UR26 UR36 UR40

Weights (1) [Kg] 164 181 185

(1)

(1)

(1)

B

A

490

1029

457

4x Ø

13.5

760

300 185

255

205

37095

100

3015

0

23

275 320 365

480480320320

676676320

320

700700724724

A

B

676676320

320

665

665

700700

450

450

215

215

676676

700700

320

320

320320480480

140275 320

490

4x Ø

13.5

9520

160

1029

645

300205

728

370

100

27

55

185

9530

150

1035

760300 255 205

724

370

100

27

365457

419 (81)

617 (82)238

A AB B

C78

4

320

A A

C B B B B

700

320

1035

1030

320C B B

1030

(1)

240 A A

C B B B B 700240

A A700

HV connectors

(1) heat sink on UR40 only

(1) At maximum short-circuit breaking capacity. For other installation conditions, contact Sécheron.

Note: For insulating distances to earth, contact Sécheron.

40 25

2550

25

4x Ø14 4x Ø14

40 25

2550

25

A

5

40 25

2550

25

4x Ø14

B

Low voltage control scheme

Electric holding

Dimensions without tolerances are indicative. All dimensions are in mm. Maximum allowed flatness deviation of the support frame is 0.5 mm.

UR36/40UR26

Insulating distances

F,G : ContactsS : Automatic circuit-breaker

R1: Resistor to be inserted in the holding circuit; the power to be considered for the resistor choice is 220 W (4x55 W)

5

Coil characteristics

Closing pulse 0.5 to 1 s E type holding

Unom Inom Imin E Imin M Imax R1nom Inom Imin Imax

[VDC] [A] [A] [A] [A] [Ω] [A] [A] [A]

24 41.7 22.5 25 70.9 11.4 2.0 1.4 2.5

36 32.7 17.7 19.6 55.6 25 1.4 0.1 1.7

48 20.9 11.3 12.5 35.4 45.7 1.0 0.7 1.3

64 17.6 9.5 10.6 29.9 79.4 0.8 0.5 1.0

72 16.4 8.8 9.8 27.8 100 0.7 0.5 0.9

110 11.7 6.3 7.0 19.9 210 0.5 0.4 0.6

Note: for components selection, the following criteria shall apply:

Unom = RxInom for Tamb = +20°C Umin = RxImin for Tamb = - 5°C Umax = RxImax for Tamb = +40°C

VEAM type 22 pinsHarting HAN® 32 EE

Circuit-breaker main contact

Circuit-breaker closing coil

1a + 1b - Switch PF

Harting type HAN® 32 EE

11 9

12 8

7 5 3 1

4

15

16

1319

20 10 6 21418

17

21

22

23

24(1)

(1)

(1) Double cable only for 24 VDC control voltage.

VEAM type 22 pins

11 9

12 8

7 5 3 1

4

15

16

1319

20 10 6 21418

17

21

22

Valid for all versions except 24 VDC.

For 24 VDC, choose Harting HAN® 32 EE connector.

Auxiliary switches Fixedconnector

type

Mobile connector

Number of pinCablegland

Sécheron’snumber

ConnectorDevice Number Type

Size2.5 mm²

Size1.5 mm²

UR26/36/40 5a+5b PFHarting

HAN® 32 EE0 32 M32 SG104063R10100

UR26/36/40 5a+5b PFVEAM

type 22 pins22 0

Ø25to

Ø34SG101699R00001

Mobile connector

Indirect release

Low voltage wiring diagrams for electric version

Options (subject to additional costs)

Typical value for closing coils

BI 24

The indirect release enables to shorten the breaker’s opening time tI down to about 4 ms, whatever the dl/dt conditions (see graph page 2), when required by specific applications.

The indirect release BI 24 is triggered by the control unit type CID-3 ( not included with the circuit-breaker - to be ordered separately - refer to CID3 brochure SG101783B...).

Lége

nde

II>

(WI)

( I>)

(WI)

ab

ab

Légende

II>(WI) (I>) (WI)a b a b

Légende

II>(WI) (I>) (WI)a b a b

6

ECO-Drive integrated control module

Customer’s scope

Sécheron’s scope

Harting connectorB

65

11

24

3 1

24

3

2

8

7

E

Vbat P

Vbat N

ORDP

ORDN

k0

Un

UEF

k1

+

+

-

-

C

20

4

3

C

D

ED

18 16 14

19 17

2628

2527

22

21

56

12

8

7

15 13

12 10 8 6

11 9 7 5

4 2

3 1Vbat P

Vbat N

ORDP

ORDN

k0

Un

UEF

k1

+

+

-

-

Low voltage wiring diagram (Harting connector)

Control circuit technical data

Nominal voltage (electric holding only) (1) Un/UEF [VDC] 24, 36 (2), 48 (2), 64 (2), 72, 110

Range of voltage [ 0.7 - 1.25 ] Un

Idle (standby) power [W] <1.6

Nominal closing power (3) Pc [W]/[s] 1’300/1

Nominal holding power for electric holding (3) [W] <8

Nominal opening power for electric holding (3) [W] <1.6

Mechanical opening time on opening order (4) [ms] 15 - 30

Mechanical closing time on closing order (3)(4) Tc [ms] ~150 (1) Control voltage UEF and supply voltage Un can be different (2) Currently under development

(3) At Un and Tamb = +20°C(4) Starting when the signal is received by the coil

Concepts for integration on vehicles

Sécheron proposes 3 different concepts to integrate the UR26/36/40 circuit-breakers in vehicles:

• Complete Plug & Play polyester enclosure, in which the DC circuit-breaker is installed, and which offers an IP54 protection index. It is intended for EMUs and trains outdoor roof mounting (including high speed trains).

• Insulation housing with protection index IP00, delivered as an option separately from the breaker. It enables the car-builder to build its own metal enclosure and/or container with reduced dimensions, in which the DC circuit-breaker with its insulation housing will be installed. This type is mostly used for locomotives and trains.

• Complete Plug & Play metal enclosure (DC MODBOX® program), in which the DC circuit-breaker is set with other functions, such as current & voltage measurements. DC MODBOX® offers an IP56 protection index for outdoor roof or under-frame mounting. This type is mostly used for trains and high-speed trains, as well as for applications with severe operational environments (cold and icy, dusty or sandy environment).

Plug & Play roof-mounted polyester enclosure

This enclosure can be directly mounted on the vehicle’s roof.May your need deviates from the above standard specifications, please contact Sécheron with your particular requirements.

The ECO-Drive is a compact control module integrated into UR circuit-breakers, to manage closing-holding sequences with electric control. The ECO-Drive is set on the UR breaker’s closing device.

This option offers to system integrators the following advantages:

• UR26/36/40 breakers need no more additional hardware to manage the closing-holding sequences• Reduction of the overall space necessary to operate the circuit-breaker• Reduction of overall installation costs of the DC circuit-breakers• Reduction of holding power consumption and operational costs versus conventional holding variant• Reduction of the risks of damaging the closing coil during commissioning and service operations

The UR breaker together with the ECO-Drive is fully compliant for electromagnetic compatibility with EN 50121-3-2 and with EN 50155: § 5.1.1.2 short (10 ms) interruptions class S2 and § 5.1.3: voltage dips / variation (at 0.6Un during 100ms) class C1

496

9001508

Valid for UR26Enclosure material Insulation materialEnclosure colour Blue grey RAL 7031Enclosure thickness 6 mmProtection index IP IP54Opening of the box cover On low voltage connector sideMaximum breaking capacity Available on requestInsulation distance around the enclosure Available on request

High voltage cable interface 1 cable plate with 4 cable glands M32x1.5Note: plate is located on LV connector side

Low voltage cable interface Harting HAN® 32 EE connector on enclosure

UR26-64 TCPRoof mounting ( IP 54)

7

Insulation housings

The insulation housings have to be ordered additionally to the DC circuit-breaker (see page 8).

For horizontal underframe mounting

This housing is designed to minimize the necessary insulation clearance distances against earth, when the circuit-breaker is integrated in the car builder’s own metal enclosure.

For vertical indoor mounting

The purpose of this housing is to minimize the necessary insulation clearance distances against earth, when the circuit-breaker is integrated in the car builder’s own metal enclosure/container.

DC MODBOX®

DC MODBOX® is a compact metal clad, “plug and play’’, project-based solution, featuring several high voltage DC components located around the DC circuit-breaker.

Built on a standard platform of rolling-stock-dedicated aluminium enclosure and standard proven high voltage DC components, DC MODBOX® can be, to a certain extent, adapted to the application requirements. Typically electric schemes, integrated components, as well as both high- and low-voltage interfaces can be customized.

With its limited height (535 mm) and a shape designed to match aerodynamic constraints, DC MODBOX® bring efficient solutions to solve co nstraints related to roof space, insulation and speed. Moreover it allows the high voltage DC components to operate protected from the most severe environmental conditions. DC MODBOX® simplifies project management, logistics, and instal-lation tasks for the car builder.

To evaluate DC MODBOX® solution that best suits your project, please contact Sécheron.

Valid for UR26

Enclosure material Insulation material

Enclosure colour Beige RAL 1013

Enclosure thickness 4 mm

Protection Inde IP IP00

Opening of the box Knurled knobs

Maximum breaking capacity Available on request

Insulation distance around the enclosure

Available on request

Interface for high voltage cables Enclosure opening for cable connection on circuit-breaker

Interface for low voltage cable Direct connection on circuit-breaker’s connector

To be mountedon customer box

UR26-64 TCSUnderframe mounting( IP 00)

This option offers to system integrators the following advantages:

• UR26/36/40 breakers need no more additional hardware to manage the closing-holding sequences• Reduction of the overall space necessary to operate the circuit-breaker• Reduction of overall installation costs of the DC circuit-breakers• Reduction of holding power consumption and operational costs versus conventional holding variant• Reduction of the risks of damaging the closing coil during commissioning and service operations

Valid for UR26/36/40

Enclosure material Insulation material

Enclosure colour Beige RAL 1013

Enclosure thickness 5 mm

Protection Index IP IP00

Opening of the box Knurled knobs

Maximum breaking capacity available on request

Available on request

Insulation distance around the enclosure

Available on request

Interface for high voltage cable Enclosure opening for cable connection on circuit-breaker

Interface for low voltage cable Direct connection on circuit-breaker’s connect

UR26/36/40-64Indoor mounting (IP00)

503800

1160

900

1767

545

525

977

998

500 816

1524

1500770

470

Copyright© 2015 Sécheron SA

This document is not contractual and contains information corresponding to the level of technology at the date of printing. Sécheron reserves the right to modify and/or improve the product, whose characteristics are described in these documents, as required by new technology at any time. It is the purchaser’s responsibility to inform himself, no matter what the circumstances, of the product’s maintenance conditions and requirements. Sécheron reserves all rights, especially those arising from our “General Delivery Conditions”.

S

G1

05

30

6B

EN

_A0

3-0

7.1

5

Sécheron SA Rue du Pré-Bouvier 251242 Satigny - GenevaCH-Switzerland

Tel: +41 22 739 41 11Fax: +41 22 739 48 11info@secheron.comwww.secheron.com

Place and date: Name: Signature:

Designation code information

• Be sure to establish the designation code from our latest version of the brochure by downloading it from our website “www.secheron.com”.

• Be careful to write down the complete alphanumerical designation code with 15 characters when placing your order.• For technical reasons some variants and options indicated in the designation code might not be combined.• The bold part of this designation code defines the device type as it is displayed on the identification plate attached to the

product.• For other configurations not described in this brochure, please contact Sécheron.

Designation code (options are subject to additional costs) - Order form

Line Description Designation Standard Options Customer’s choice

10 Product type UR UR UR11 Conventional free-air thermal current 2600 A 26 3600 A 36 4000 A 4012 Rated operational voltage 3600 VDC 64 64

13 Application Rolling stock T T14 Mounting position Vertical D Horizontal C15 Breaker execution Vertical indoor mounting (1) ø Horizontal roof mounting with polyester enclosure P Horizontal under-frame mounting with additional insulation housing (2) S16 Nominal control voltage 24 VDC A 36 VDC B 48 VDC C 64 VDC G 72 VDC D 110 VDC E17 Varistor on coil (3) No ø Yes (battery voltage) 118 Direct over-current release UR26 1.4 - 2.7 kA A UR26/36/40 2.0 - 5.0 kA B UR36/40 4 - 10 kA G19 Indirect release No ø BI24 120 Auxiliary contacts (4) 5a + 5b — (Switch PF) — Silver type A 5a + 5b — (Switch PF) — Gold type C21 LV connector type on circuit-breaker Harting HAN® 32 EE C Veam type 22 pins B22 ECO-Drive control module No 0 Yes (5) 4(1) For execution ordered with additional insulation housing, the housing must be ordered separately (section below) (2) The insulation housing for the breaker’s execution UR26-64TCS must be ordered separately (section below) (3) In case control type “ECO-Drive” is selected (line 22), select “No” for Varistor on Coil (line 17) (4) Based on the selected breaker’s configuration, the number of available auxiliary switches might be reduced (5) Valid only with nominal control voltage 24VDC , 72VDC or 110VDC (36VDC, 48VDC under development).

Material to be ordered separately:– Insulation housing (refer to page 7):

Insulation housing for vertical indoor mounting: SG104420R.....

Insulation housing for UR26-64TCS: SG102006R.....– Low Voltage mobile connector (refer to page 6):

None Harting HAN® 32 EE SG104063R110100 Veam 22 pins SG101699R00001

Value of the setting of the direct over-current release: ........................... [A]

Example of customer’s choice: UR 26 64 T D ø E ø B ø A CLine: 10 11 12 13 14 15 16 17 18 19 20 21

Designation code for ordering