VP2/5A/CIB/26VDC

## ee 

C&S Controls Limited 22 Upland Road Bexleyheath KENT.  DA7 4NR 

Tel: +44 (0)20 8304 4882 Fax: +44 (0)20 8301 1938 Email: sales@candscontrolsltd.com ~~——~~ Web: www.candscontrolsltd.com 

## **VP Series Relay** 

## **Miniature Cradle Relays** 

- World-wide compatibility 

- mA/mV to 5A or 250V switching 

- RoHS compliant 

- Bistable magnetic latching types available 

- Mounting options 

- BT23 and BT32 approved types available 

- Life tested to 100,000,000 mechanical operations 

- Comprehensive technical service 

- Broad custom capability 

Keyswitch Varley™ VP Series miniature cradle relays offer contact, coil and mounting options to meet a wide range of applications.  They are extremely reliable, proven through many years manufacture and use and are compatible with all similar products manufactured world-wide. 

## **1. SUMMARY OF TYPES** 

## **1.1. BASIC VP SERIES** 

**Contacts: –** 2, 4, 6 & 8 pole contact arrangements are available, with a choice of contact materials to suit applications from low to heavy duty. 

**Coils: –** Nominal coil voltages range from 6 to 200V DC and 6 to 110V AC to give the user a liberal choice of operating voltages. 

**Omission of Earth Screw/Pin:–** For Applications where an earth facility is not required, the earth screw or pin can be omitted, obviating the need to drill printed circuit boards or panels. 

**Earth Clip:–** Wiring sockets are supplied complete with an earth clip (loose piece) enabling the relay to be earthed via the fixing screw. 

**AC Operation:–** For AC operation a range is available with built in rectifiers. 

## **1.2. VPR Series** 

**Sensitive operation:–** Special adjustments can be made which provide increased sensitivity of operation, denoted by ‘SEN’ in the ordering code. 

**Mounting:–** Available as a plug-in relay (also suitable for direct wiring) or for printed circuit board mounting with alternative pin layouts. 

**Socket and Retaining Clip:–** Relay sockets and retaining clips (ordered separately) are available to suit the different case sizes. Sockets are available with printed circuit pins or solder tags. 

Bistable, polarised relays with either single or double wound coils, capable of being pulsed at a minimum of 10 milliseconds. 

## **1.3. Telecom approved relays** 

These relays conform to British Telecom codes BT23 and BT32.  For BT23 the contact material is always code 'G' while for BT32 code 'F' is used. 

VP Relay-C&S Controls Ltd. 18/3/15 

Page 1 of 8 

## **2. SCHEMATIC DIAGRAMS** 

The arrangements shown are applicable to all Basic VP Series relays. They are also applicable to the VPR Series where relevant; see Standard Contact Arrangements and Case Sizes. For additional contact arrangements available contact sales. 

**==> picture [436 x 631] intentionally omitted <==**

**----- Start of picture text -----**<br>
2 POLE<br>1<br>1  1  1  1  1<br>4<br>4 4 4 4 4<br> 8  10   5   7   11   14   5   8   9  10   6   7   8   14  8  14   16   8<br> 8   5<br>9   6  13   7  5   11  5  11  13  5<br>Light duty, TC,  HD  Light duty, TC  HI  HI  HI<br>or 5A<br>2 changeovers  2 changeovers  2 make before break  2 break  2 make  1 make + 1 break<br>4 POLE<br>1<br>1  1<br>4<br>4 4<br>15  16   9  10<br> 14  16   8   10   19  22  10   13  8<br>14   8<br>15   9  20  11<br> 11   13   5   7   14   17   5   8  12  13   6   7<br>12   6  16   7  11   5<br>Light duty, TC,  HD  Light duty<br>or 5A<br>4 changeover  4 changeover  4 make before break<br>6 POLE  1<br>1  4 1  1<br>21  22  12  13<br>4 4 4<br>20  11<br> 20  22  11   13  15    9   16   10<br>18  19   9  10<br> 17 21   19   8 12   10  17   8  13 16    7   10   14  15    8   9<br> 14 18   16   5   9   7  15  16   6   7  11  14    5    8   12  13    6   7<br>15   6  14   5  12    6  11   5<br>Light duty, TC,  Light duty  Light duty, TC,  Light duty, TC,<br>or 5A  or 5A  or 5A<br>6 changeover  6 make before break  6 break  6 make<br>1  1<br>8 POLE<br>4 4<br>20   11   21   12<br>18  21    9   12   19  20   10  11<br>16  19    7   10   17  18    8   9<br>17    8  16   7<br> 14    5   15    6<br>15    6  15   5<br>Light duty, TC,  Light duty, TC,<br>or 5A  or 5A<br>8 break  8 make<br>**----- End of picture text -----**<br>


VP Relay-C&S Controls Ltd. 18/3/15 

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## **3. STANDARD CONTACT ARRANGEMENTS AND CASE SIZES** 

||**Table 1**|**Table 1**|**Table 1**|**Table 1**|**Table 1**|**Table 1**|**Table 1**|**Table 1**|**Table 1**|
|---|---|---|---|---|---|---|---|---|---|
||Contact Type|S   /   TC   /   5A / HI||||HD||||
||No. of Poles|2|4|6|8|2|4|6|8|
||Basic VP Series<br>Case Sizes<br>M<br>B<br>C|1<br>1<br>1|2<br>2<br>2|2<br>2<br>3|3<br>3<br>n/a|2<br>2<br>2|3<br>3<br>3|n/a<br>n/a<br>n/a|n/a<br>n/a<br>n/a|
||VPR Series<br>Case Sizes<br>M<br>B<br>C|1<br>1<br>1|2<br>2<br>2|2<br>2<br>n/a|n/a<br>n/a<br>n/a|2<br>2<br>2|3<br>3<br>3|n/a<br>n/a<br>n/a|n/a<br>n/a<br>n/a|
||SEN Options available for all types of Relays except HD and VPR Relays.|||||||||
||M = make.  B = break.  C = changeover.  S = standard single contact (0.25 or 1 amp).<br>TC = twin contact (0.25 or 1 amp).  5A = 5 amp single contact. HI = High Insulation<br>HD = heavy duty 5A contact (increased pin spacing).  n/a = not available.|||||||||



- Note that the 5 amp (5A & I) contact material is 90% Silver with 10% Cadmium Oxide (D54X alloy). A relay fitted with 5 amp contacts in a quantity greater than two changeover or four make or four break, will have >0.1% Cadmium Oxide content. 

## **3.1 Case Sizes, Socket & Retaining Clip Order Codes.** 

**Table 2** 

|Case<br>Size|Dimensions (See<br>drawing)|Dimensions (See<br>drawing)|Dimensions (See<br>drawing)|Printed Circuit<br>Socket|Wiring Socket|Retaining<br>Clip|A<br>C<br>B|
|---|---|---|---|---|---|---|---|
||A|B|C|Order Code|Order Code|Order Code||
|1|24.4|30.1|18.5|SVP10P01|SVP10W01|SVP10RC01||
|2|30|30.1|18.5|SVP16P01|SVP16W01|SVP16RC01||
|3|36.6|30.1|18.5|SVP22P01|SVP22W01|SVP22RC00||
|An earth clip is supplied with each wiring socket (loose part)||||||||



## **4. COIL DATA** 

## **4.1.  BASIC VP SERIES – Table 3.** 

Short coils (case 1, 2, 3, see tables 1 & 2).  The tables below list the characteristics of all standard Basic VP Series relay coils.  Note, against 'Minimum Volts' the subheadings refer to various options, i.e. S = Low level or light duty single contacts, TC = twin contacts, 5A = 5 Amp contacts, HD = heavy duty contacts, SEN = sensitive adjustment.  The characters below these subheadings refer to the number of poles and contact action, i.e. M = make, B = break, C = changeover. 

## **Table 3** 

|**Table 3**|**Table 3**|**Table 3**|**Table 3**|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|DC Coil (Nominal Voltage)<br>Max. power at 20°C ambient = 2W||||||6|12|14|21|26|34|47|72|90|120|
|Resistance (ohm) ±10% (except *±15%)<br>Number of Turns||||||52<br>1750|185<br>3200|280<br>3800|430<br>4700|700<br>5900|1250<br>7700|2500<br>11000|5800<br>16000|*9000<br>20000|*15000<br>24000|
|MAXIMUM VOLTS||(40°C ambient)||||10|19|23|29|37|49|70|106|128|166|
|Min<br>Volts|S|TC|5A|HD|SEN|||||||||||
||2C|||||2.6|5.0|6.5|8.0|11.0|15.0|21.0|33.0|42.0|58.0|
||4C,6M,6B|||2C||4.0|8.0|10.0|11.0|16.0|22.0|31.0|50.0|62.0|86.0|
|||2C|2C|||3.4|6.8|7.7|10.2|13.2|19.0|27.0|41.0|50.0|70.0|
||||||2C|2.3|4.3|5.3|6.4|8.2|11.0|17.0|23.5|30.0|43.0|
|||4C,6M,6B|4C 6M 6B|4C||4.8|9.6|11.4|14.6|19.0|27.0|38.4|58.0|72.0|100.0|
||||||4C,6M,6B|3.3|6.3|7.7|10.0|12.3|16.5|26.0|35.0|43.5|58.0|



VP Relay-C&S Controls Ltd. 18/3/15 

Page 3 of 8 

## **4.2. M TYPE COILS – Table 4.** 

M Type (Short) coils for relays with 6C, 8M or 8B contact actions and for other actions where lower minimum operating voltage is required. Designated in the ordering code by 'M' immediately after the coil voltage. 

## **Table 4** 

|<br>**Table 4**|<br>**Table 4**|<br>**Table 4**|<br>**Table 4**|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|DC Coil (Nominal Voltage)||||||6M|12M|17M|21M|26M|34M|47M|65M|100M|120M|
|Resistance (ohm) ±10% (except *±15%)<br>Number of Turns||||||28<br>1350|110<br>2700|220<br>3700|325<br>4450|530<br>5800|890<br>7300|1700<br>9900|3200<br>13400|7600<br>20700|*11750<br>24800|
|MAXIMUM VOLTS||(40°C ambient)||||7.4|14.6|20.6|25|32|42|56|77|120|150|
|Min<br>Volts|S|TC|5A|HD|SEN|||||||||||
||2C|||||1.9|3.9|5.4|6.5|8.3|11.0|15.5|21.5|33.0|43.0|
||4C,6M,6B|||2C||2.82|5.8|8.2|10.1|12.4|17.0|23.8|32.0|51.0|65.0|
|||2C|2C|||2.36|4.9|6.9|8.5|10.6|14.3|20.4|29.0|46.0|59.0|
||||||2C|2.54|3.2|4.4|5.6|6.9|8.9|11.9|19.2|28.0|35.0|
|||4C,6M,6B|4C,6M,6B|4C|6C,8M 8B|3.3|6.9|9.5|11.7|14.9|19.6|27.2|38.4|60.0|71.0|
||||||4C,6M,6B|2.2|4.6|6.2|7.8|9.6|12.5|18.7|25.0|39.0|50.0|
||6C,8M,8B|||||4.3|8.6|12.4|15.3|19.0|25.0|36.0|50.0|76.0|98.0|
|||6C,8M,8B|6C,8M,8B|||6.0|11.0|17.0|20.0|25.0|33.0|45.0|60.0|90.0|115.0|



## **4.3. BASIC VP SERIES WITH BUILT-IN RECTIFIERS FOR AC OPERATION – Table 5.** 

Designated in the ordering code by 'AC' immediately followed by the nominal voltage. Short coils (Case 1, 2 or 3 see tables 1 & 2). 

## **Table 5** 

|**Table 5**|||||
|---|---|---|---|---|
|_Coil Type_<br>_(Nominal Voltage)_|Resistance<br>Ohms ±10%|Voltage|@ 50Hz|Coil power:<br>1.6VA max. 1.3W max.<br>Frequency range:<br>50-120Hz<br>Available contact combinations:<br>2C & 4C light duty contacts<br>2C, 4C, 6M or 6B twin contacts<br>2C, 4C, 6M or 6B 5amp contacts<br>2C heavy duty contacts (HD)<br>*12AC to 110AC have a single coil with a series/parallel diode arrangement.|
|||Maximum|Minimum||
|_6AC (Double coil)_|26 x 2|6.6|4.8||
|_12AC*_|52|13.5|9.5||
|_24AC*_|185|27|19||
|_42AC*_|700|46|33||
|_50AC*_|890|55|45||
|_60AC*_|1250|66|48||
|_110AC*_|4700|121|88||



## **4.4.  VPR SERIES BISTABLE POLARISED RELAYS** 

Short coils (Case 1, 2 or 3 see tables 1 & 2) 

These are bistable polarised relays having magnetic latching by means of a ceramic magnet.  The relay can be pulsed at 10 milliseconds (minimum) sine or square wave.  The physical dimensions and base terminals are identical to the Basic VP Series, and they are available in single or double wound coils. 

Data in the tables below apply to available contact arrangements i.e. 2 or 4 pole changeover, 6 pole make or break. 

## **4.4.1.  SINGLE WOUND COILS AT 20°C (TERMINALS 1 &4) – Table 6.** 

## **Table 6** 

||**Table 6**||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|Polarity (NC closed)<br>To change state<br>a)<br>Apply positive to terminal 1<br>b)<br>To return to NC closed, apply<br>negative to terminal 1|DC Coil (Nominal Voltage)|3|5|6|12|24|34|47|72|120|
||Resistance ohms ±10%<br>(except *±15%)|9.6|23|49|200|560|1080|2040|4800|*13300|
||Number of turns|660|1020|1430|3000|5000|6800|9350|14000|24000|
||Nominal Voltage|3|5|6|12|24|34|47|72|120|
||Minimum Voltage|1.9|3|4.5|8.9|15.4|22|30|47|87|
||Maximum Voltage|4.2|6.5|9.4|19|33|44|60|93|150|
||Max. Pulse Voltage|6.5|10|16|30|51|72|98|154|280|



VP Relay-C&S Controls Ltd. 18/3/15 

Page 4 of 8 

## **4.4.2.  DOUBLE WOUND COILS AT 20°C (TERMINALS 1 & 4 AND 2 & 3) – Table 7.** 

## **Table 7** 

Each coil may be used separately as above. To change state using both coils 

a) Apply positive to either terminal 1 or terminal 2. 

b) To return to original position apply negative to terminal 1 or terminal 2 

|**Table 7**||||||||||
|---|---|---|---|---|---|---|---|---|---|
|DC Coils (nominal volts)|2.5|4|6|12|24|36|47|60|100|
|Resistance ohms ±10%      1 & 4<br>(*±15%)                               2 & 3|4.8|11.5|24.5|100|340|1020|1400|*2400|*6650|
||4.8|11.5|24.5|100|400|1020|1400|*2400|*6650|
|Number of turns                  1 & 4<br>2 & 3|310|490|730|1450|2600|4600|5100|6700|10900|
||310|490|700|1450|3020|4220|5650|6700|10600|
|Minimum volts|2.0|3.2|4.8|9.4|19.5|33|38|51.5|92|
|Maximum volts (continuous)|3.0|4.6|6.7|13.4|26.5|42.5|50|65|108|
|Maximum pulse volts|7.0|10.5|15.5|31|65|100|120|160|280|



## **5. RELAY CONTACTS.** 

## **5.1 CONTACT MATERIALS** 

- **Code A –** Fine silver (gold flashed) – the most effective material for general purposes and has the highest conductivity of all metals. The bare metal is prone to tarnishing in sulphurous atmospheres, but in all but the very lightest of settings, the wiping action of all the contacts rapidly breaks down the film. 

- **Code F –** 95% Gold 5% Nickel – arc and weld resistant, hard wearing and the best material for low level applications. (BT type 32 Contact Material) 

- **Code G –** 60% Palladium, 40% Silver - It is arc resistant and the least costly of the tarnish-free alloys at normal temperatures. (BT type 23 Contact Material) 

- **Code I –** Silver Cadmium Oxide - a hard sintered alloy ideally suited for heavy duty applications with inductive loads. It is less prone  to material transfer than Silver on DC circuits, but it is not suitable for low voltage low current applications. 

## **5.2 CONTACT RATINGS – Table 8.** 

## **Table 8** 

|**Table 8**||||||
|---|---|---|---|---|---|
|**Contact Type**|**Code**|**Max. Amps**|**Max. Volts**|**Max. Watts**|**Max. VA**|
|**Light duty**<br>**Gold/Nickel (95%:5%)**<br>**Single & TwinContacts**|**F**|**0.25**|**100**|**10**|**25**|
|**Light duty**<br>**Fine Silver (Gold Flash)**<br>**Single & Twin Contacts**|**A**|**1.0**|**100**|**30**|**60**|
|**Light duty**<br>**Palladium/Silver (60%:40%)**<br>**Single & TwinContacts**|**G**|**1.0**|**100**|**30**|**60**|
|**5 Amp**†<br>**Silver/Cadmium Oxide**<br>**Single contact**|**I**|**5.0**|**250**|**100**|**200**|
|**HD**<br>**Fine Silver (Gold Flash)**<br>**Single Contact**|**A**|**5.0**|**250**|**100**|**200**|
|†Relays VP*/5A<br>/*A<br>*/* (silver) no longer available, replacement relays supplied  with silver cadmium contacts (Code I)||||||



## **5.3 CONTACT TYPES** 

Single light duty & 5 Amp Suitable for most general purpose applications. 

Twin (TC) light duty 

Recommended for all critical applications that require reliable high integrity switching. The relays are constructed using two sets of standard contacts (of the selected type and rating) fixed to bifurcated contact springs. 

Heavy duty (HD) 

Made from fine silver (code A), the contacts are physically larger than the standard light duty contact to allow for increased dissipation. Double spacers are inserted between springs so that the spring set is larger than that on the normal duty 5 Amp (5A) contacts. Consequently the case size and terminal numbering is different from the 5A types. 

VP Relay-C&S Controls Ltd. 18/3/15 

Page 5 of 8 

**6. RELAY CODE RECOGNITION.** 

**Example of Relay Descriptive code = VP 4/ SEN/ PB/ 5A/ C I B /26 / T.** 

||**Example of Relay Descriptive c**|
|---|---|
|||
|**Relay Series**||
|VP #|Standard relay|
|VPR #|Bistable polarised relay|
|# = Number of poles|2, 4, 6, or 8 (sets of contacts)|
|**Operation**<br>Unspecified<br>SEN|Standard setting<br>Sensitive setting|
|**Mounting style**||
|<br>Unspecified|Plug-in/solder|
|PB|Plug-in/wired types|
|DM|Printed circuit – 2.54mm (0.1") grid|
|**Contact type**<br>Unspecified<br>TC<br>5A<br>HD|Standard light duty<br>Twin contacts light duty<br>5 Amp (silver cadmium oxide only)<br>Heavy duty (silver)|
|**Contact functions**||
|M|Make (N/O)|
|B|Break (N/O)|
|C|Changeover(C/O)|
|K|Make before break|
|**Contact material**<br>A<br>F<br>G<br>I|Fine silver                  (gold flash)<br>Gold/Nickel               (95%:5%)<br>Palladium/Silver       (60%:40%)<br>Silver cadmium oxide|
|**Terminal material**||
|B|Steel, nickel plated (standard)|
|**Coil identification**<br>Coil voltage required<br>(voltage1)W(voltage2)|(for M type coils insert M after voltage;<br>for  bifiliar windings insert resistance in<br>lieu of voltage)<br>Overlaid (twin) coil winding|
|<br>**Special requirements**||
|AC<br>Built-in rectifier||
|T<br>Tropicalised coil||
|RSD<br>Anti-residual stud||
|B<br>Bifilar windings||
|LES<br>Less earth screw(plug-in and PCB types)||
|LEP<br>Less earth pin (direct mount (DM) types)||
|||



## **Typical examples of relay codes: -** 

**VP4/PB/CAB/26/RSD/T/LES** Basic 4 pole changeover action with 2.8mm pitch PC terminals, 1 amp silver contacts, 26 volt DC coil, anti-residual stud, tropicalised, less earth screw. **VP4/CAB/24AC** Basic 4 pole changeover action with 1 amp silver contacts, 24 volt coil with built-in rectifier for AC operation. 

**VP2/HD/CAB/430ohmB** Basic 2 pole changeover action with heavy duty silver contacts, 430ohm bifilar windings. 

**VP6/BFB/26W26** (pull and hold) Basic 6 pole break action with 0.25 Amp gold nickel contacts, overlaid coils (26volt inner 'pull', 26 volt outer 'hold'). 

For product support, information on our extensive range of VP relay configurations and options available, project support enquiries and replacement support for cradle relays not available from their OEM’s, contact sales. 

VP Relay-C&S Controls Ltd. 18/3/15 

Page 6 of 8 

**7. Outline drawings and layout diagrams.** 

**==> picture [515 x 314] intentionally omitted <==**

**----- Start of picture text -----**<br>
PLUG-IN / WIRING RELAY<br>SOCKETS<br>ee<br>B<br>5.4<br>CASE SIZE 3<br>14.5<br>TT 7 22         12          13  3.1<br>20         21          11<br>19          9           10<br>17         18           8<br>16          6            7<br>14         15           5  CASE  MAX<br>PRINTED<br>WIRING  1  26.6<br>CIRCUIT<br>4        3              2        1  SOCKET  2   32.5  SOCKET<br>8BA<br>3  38<br>o e S22 [of a| F<br>4.3  Hole for manual operation<br>—rs+ ni a:[ P =<br>CASE SIZE 2 9.1 9.1<br>C<br>—. na ma<br>CASE SIZE 1<br>16          9           10  19.2<br>14         15           8  MAX<br>— 13          6            7  10         6           7  Ae LE<br>===2|/ 11         12           5  A  lece  8          9           5  io}V Le<br>4.5<br>4        3              2        1  0,0 4        3              2        1  0,0 =<br>D0 0 dy 1001<br>Figure 1  Figure 2<br>**----- End of picture text -----**<br>


## **PRINTED CIRCUIT BOARD LAYOUTS** 

**==> picture [489 x 248] intentionally omitted <==**

**----- Start of picture text -----**<br>
Relay<br>Base<br>PB Relay 3.4  0.4<br>Copper  1 Copper<br>10.2  2.54<br>side up  —~ side up<br>CASE  4.9  CASE<br>O00 | 3 f UI ty +g olol 3<br>2.8  2.16<br>CASE  CASE<br>2 1.25  2<br>DM Relay<br>27.4  000 | Terminal centres are identical to  or  “OOO<br>3.0  the wiring/plug-in relays Printed<br>Circuit<br>B  CASE  Socket B  CASE 1<br>re 2.0  1 ON A<br>0.4 standoff<br>6.6  A<br>Yr ‘a oO<br>| [yO] On<br>2000 Relay  4 5.5 max  1.3 —O--@<br>Base<br>1.5 Pes 3.8  |<br>Earth Pin<br>1.4<br>11.7  7 a+ 1.0 x 0.55<br>**----- End of picture text -----**<br>


**Figure 3** 

Terminal numbering is identical to plug-in wiring relays (figure 1), but with 'staggered' pin layout on DM & PC sockets as shown. 

A – Hole for manual relay operation if required 

B – Hole required for PB relay with standard 8BA earth/mounting stud. Not required for DM relay, PC socket or PB relay with LES in its code. 

VP Relay-C&S Controls Ltd. 18/3/15 

Page 7 of 8 

## **7.1 CONTACT NUMBERING** 

(See figs 1 & 2 for pin positions for each case size) Relays with changeover contacts see table 9 Relays with make or break contacts see table 10 

## **Table 9** 

|<br>**Table9**||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||2 - pole||||||||||4 -||pole||||||||||||6 - pole||||||
|Type||S, TC & 5A|||||HD||S, TC & 5A|||||||HD||||||||||S, TC & 5A||||||
|Case size||1|||||2|||2||||||||3||||||||3||||||
|NO<br>COM<br>NC||7<br>6<br>5||10<br>9<br>8||8<br>7<br>5|14<br>13<br>11|7<br>6<br>5|10<br>9<br>8|13<br>12<br>11||16<br>15<br>14|||8<br>7<br>5|13<br>11<br>10||17<br>16<br>14||22<br>20<br>19||7<br>6<br>5||10<br>9<br>8||13<br>12<br>11||16<br>15<br>14|<br> <br>|19<br>18<br>17|22<br>21<br>20|
|**Table 10**||||||||||||||||||||||||||||||||
|||2-pole<br>(case size 2)||||||6-pole (case size 2)||||||||||||||8-pole (case size 3)||||||||||
|Contact<br>pairs||5<br>8|11<br>14||13<br>16||5<br>6|7<br>8|9<br>10||11<br>12||13<br>14||15<br>16||<br>|5<br>6|<br>|7<br>8|9<br>10||11<br>12||14<br>15||16<br>17|||18<br>19|20<br>21|



VP Relay-C&S Controls Ltd. 18/3/15 

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