RELAYS AND TRANSDUCERS
For purchasing information, please see Information page - Button above
Some prices are marked "P.O.A" - Price on Application. This usually indicates that the item condition is unknown and will need to be tested and inspected in more detail. Such items will be tested as far as possible before I can give you a report on condition and price.
| Coax Relays | |
| Contactors | |
| Continental Style Relays | |
| Mercury Relays | |
| Octal Relays | |
| PCB Relays | |
| Power Relays | |
|
Reed Relays Stepping Relays and Uniselectors |
|
| 11 pin Relays | |
| Transducers and Gauges | |
| Cat No. |
Click Pics for Larger View |
Description | Condition | Price GBP |
| RELAYS | ||||
| REED RELAYS and accessories. PCB RELAYS For Some Data on RS items see HERE | ||||
| REL1074 |
 |
Reed Coil No 3. 1500 ohms 12-15V 30 x 13 x 12mm RS 349-030 or RS 349-844 | Unused | 2.00 |
| REL1221 |
 |
5V 500 ohm 1p1w SPST Normally Open RS 349-226 | Unused | 2.00 |
| REL1224 |
 |
5V 500 ohm 1p1w SPST Normally Open RS 345-555. SIL single in-line | Unused | 2.50 |
| REL1226 | . | 5V Mercury Wetted Normally Open RS 348-302 | Unused | 3.00 |
| REL1311 | . | DIL 14 pin 1p1w SPST Normally Open RS 349-383 | Unused | 2.00 |
| REL1421 | . | 12V RS 346-845 | Unused | 1.40 |
| REL1442 | . | 12V 1110 ohm Latching RS 346-716 | Unused | 4.50 |
| REL2020 |
 |
Reed Switch Element - Glass 2.1mm diameter, 14.5mm long glass, 28mm overall. Normally open | Unused | 0.35 10 for 1.20 |
| REL2021 |
 |
Reed Switch Element - Glass Form A (normally Open) RS 338-147 | Unused | 3.00 |
| REL2023 |
 |
Reed Switch Element - RS 6RSR | Unused | 3.00 |
| REL2025 | . | Reed Switch Element - RS 7RSR or 338-153. Body 48mm long, 5mm diameter. 83mm overall. | Unused | 3.00 |
| REL2027 |
 |
Reed Switch Element - Change-over RS 13RSR | Unused | 5.00 |
| REL2029 | Reed Switch Element - Change-over Hivac XS1.1/1 36mm body, 75mm overall | Unused | 5.00 | |
| REL2311 | . | Reed Relay RS 348-970 | . | |
| REL2321 | . | Reed Relay RS 348-986 | . | |
| REL2331 |
 |
Reed Relay - Pickering Relay 97-2-A-5/2, 5V
460 ohm.
DPST 2 normally open contacts. Pull in approx 2.8V, drop out 1.5V. |
Used | 0.30 |
| REL2333 |
 |
Reed Relay - Pickering Relay 97-2-A-5/2, 5V
460 ohm.
Strip of 4 of above on PCB. |
Used | 0.90 |
| REL2350 |
 |
Reed Relay 12V- Astralux.
400F-12-1A 32 x 12 x 10 mm overall |
Unused | 7.50 |
| REL2352 |
 |
Reed Relay - 24V 1000 ohm Astralux.
GB129A-VT1000-M Resin potted with two nylon mounting bolts. Pull in 15V, 76 x 12 x 25 mm overall |
Used | 2.50 |
| REL2355 |
 |
Reed Relay - 12V 1000 ohm Alma Reed Relay
CPR1/G
Single pole make. Pull in 6V, drop out 3V. 38 x 12 x 13 mm. |
New Old Stock | 1.10 |
| REL2357 |
 |
Reed Relay - 12V 750 ohm Alma Reed Relay
CRGC/C
Single pole change-over. Pull in 6V, drop out 3V. 58 x 13 x 13 mm. |
New Old Stock | 1.90 |
| REL2362 |
 |
Reed Relay - 12V-18V 1600 ohm Alma Reed Relay
RS 348-992
Single pole change-over. 38 x 12 x 13 mm. |
New Old Stock | 1.90 |
| 6V | ||||
| REL3333 |
 |
6V 53 ohm SPCO 1p2w RS 347-848
10A Contacts 29 x 12 x 24mm |
Old Stock | 4.00 |
| REL3342 | As REL3428 | 6V 410 ohm SPCO 1p2w RS 349-125 Open style | Unused | 3.00 |
| 12V | ||||
| REL3411 |
 |
12V 1p2w SPCO Omron Relay G2L-113P-V 27 x 10 x 25mm | Unused | 2.50 |
| REL3415 |
 |
12V 400 ohm 1p2w SPCO 3A RS 346-621. 21 x 16 x 22mm | Unused | 3.50 |
| REL3422 |
 |
12V 2p2w DPCO RS 348-655 | Old Stock | 3.00 |
| REL3428 |
 |
12V 1640 ohm 1p2w SPCO RS 349-131 Open style Two only | Used | 2.50 |
| 24-30V | ||||
| REL3612 | As REL3428 | 24V 6150 ohm RS 349-147 Open style | Old Stock | 4.00 |
| REL3621 |
 |
24V
750 ohm 2p2w DPCO STC 27C12C09 16V pull-in 3V drop-out. 42 x 17 x 10mm Some have open circuit resistances of approx 1M ohm. |
Unused Old Stock | 0.40 |
| REL3622 |
|
30V
1100 ohm 2p2w DPCO STC 271TDA 20V pull-in 6V drop-out. 42 x 17 x 10mm Some have open circuit resistances of approx 1M ohm. |
Unused Old Stock | 0.50 |
| REL3642 | . | 24V 6150 ohm 1p2w SPCO RS 349-147 (Old RS ref type 914) Open style | Old Stock Used |
4.00 2.50 |
| SEALED RELAYS | ||||
| REL4324 |
 |
6V
DPCO sealed relay Londex RL7632 G 99 NSN 5945-99-519-5292 |
Unused | P.O.A. |
| REL4331 |
 |
9V
650 ohm sealed relay DPCO. G 100/2/9 18x9x23mm body. 8 pins. Pull in at 5 to 6V |
Unused | P.O.A. |
| REL4468 | 12V
180 ohm 4 pole Change-over sealed relay
NSN5945-99-012-3876 |
Unused | P.O.A. | |
| REL4471 |
 |
12V
500 ohm 2 pole Change-over sealed relay Hellermann Deutsch HDD1AE2E03 NATO 0634-5945-99-015-4751 |
Unused | P.O.A. |
| REL4486 |
 |
Sealed Relay Dual 50 ohm. SPCO. Z530037. Equivalent to NATO 5945-99-012-8198 |
Unused (1) Used |
15.00 5.00 |
| REL4488 |
|
Sealed Relay Dual 500 ohm. SPCO. Z530039. One only Equivalent to NATO 5945-99-012-8200 |
Used | 6.00 |
| REL4517 |
 |
24V coil
700 ohm
Sealed Relay Z5300453, DPCO |
Used | 4.00 |
| REL4519 |
 |
24V 700 ohm coil Sealed Relay 5945-99-053-0463 28 x 20 x 40mm 1 only |
Unused | P.O.A. |
| REL4522 |
 |
240Vac 5mA AC Sealed Relay 4p c/o RS 346-570. 25 x 20 x 38mm 2 only |
Unused | P.O.A. |
| REL4524 |
 |
Sealed Relay Magnetic Devices 336/150/12 20 x 8 x 22mm 1 only |
Unused | P.O.A. |
| REL4550 |
 |
24V
750 ohm coil 4P CO CP127906/4 PLY/T/M 14 pin base. 33x24x40mm case. |
Used? | 3.50 |
| REL4555 |
 |
24V
1250 ohm coil DPCO Clare Elliott HF 1205 DTA NSN5945-99-014-3178 |
Unused | 9.00 |
| REL4557 |
 |
24V 2000 ohm coil DPCO Hellermann Deutsch HDD1HF2-E03 HEE-ZC35538 | P.O.A. | |
| REL4559 | . | 24V
6800 ohm coil DPCO Z119098 Silver plated case |
Used? | 9.00 |
| REL4563 |
 |
26.5V 675 ohm coil DPCO Elliott RL7631 G52 NSN5945-99-580-5601 |
Unused | P.O.A. |
| REL4585 |
 |
48V
8000 ohm coil DPCO Hellermann Deutsch HDD1AG2E03 HEE792549300 NSN 5945-99-014-1427 |
Unused | P.O.A. |
| REL4587 |
 |
48V 2500 ohm coil DPCO Magnetic Devices NSN 5945-99-011-9882 | Unused | P.O.A. |
| REL4588 | 48V 2500 ohm coil ?SPM Magnetic Devices NSN 5945-99-011--9887 | |||
| REL4590 | 48V 2500 ohm coil DPCO GEC M1413 SM5-N39 Z530429 | Unused Boxed |
||
| REL4591 |
|
48V 2500 ohm coil DPCO NSN 5945-99-053-0474 | Unused | P.O.A. |
| REL4593 |
 |
48V
2500 ohm coil DPCO Associated Automation 5945-99-955-3105 5945-99-537-6509 |
Unused | P.O.A. |
| REL4605 |
 |
50V
1000 ohm coil 4PCO Diamond H Controls BS210C3T-1C, spec 360/2 NATO Ref 0634-5945-99-520-0838 |
Unused | P.O.A. |
| REL4653 |
 |
?V
7500 ohm Coil 4PCO Plessey 14 pin base NATO 0634-5945-99-539-7701 |
Unused | P.O.A. |
| REL4712 |
 |
115V 60Hz coil 4PCO Diamond H Controls BS5AC3T-1C, spec 325/2 NATO Ref 5945-99-521-6475 |
Unused | P.O.A. |
| COAX and Hg RELAYS | ||||
| REL5134 |
 |
PO type 2000 Relay fitted with 2 mercury switches. 2p make. 24V? 1000 ohm coil. Pull in 12V, release 4 volt. With 2 x 19-6A capsules. | Unused? | 18.00 |
| REL5135 |
 |
Mercury Capsule for relays such as REL124. type 18-2A or 19-6A. | New Boxed | 8.00 |
| CONTINENTAL STYLE and Similar Enclosed RELAYS | ||||
| REL6222 | , |
6-12V RELAY 130 ohm 2p 2w - DPCO
STC Type 240.ASO 4.4--14V Continental Style. Pull in approx 4V drop out 1.5V |
New Old Stock Boxed |
2.70 |
| REL6224 |
 |
6-12V RELAY 110 ohm 2p 2w - DPCO
CO715-B604 Pull in approx 4V drop out 1.5V |
New Old Stock |
2.70 |
| REL6311 |
 |
12V RELAY 185 ohm 2p 2w - DPCO
Continental Style RS Type 40 Boxed 2 only |
Unused | 2.70 |
| REL6316 |
 |
12V RELAY 185 ohm 4p 2w - 4PCO
Continental Style ITT 25D04C14A Contacts, 2A at 250V ac . |
New Old Stock | 5.20 |
| REL6322 | . | 4.4 to 14V STC 240ASO DPCO | Boxed New Old Stock |
3.60 |
| REL6334 |
 |
12V RELAY 240 ohm 2p 2w - DPCO
Continental Style ITT 240UAG or Davall T21/2CC. Ref FR081027 |
New Old Stock | 1.80 |
| REL6346 |
 |
12-20V 510 ohm
4p 2w - 4PCO Siemens & Halske Continental Style 6500/720 Double contacts |
Ex Equip? | 0.90 |
| REL6385 |
 |
21V nominal (12-24Voperate range) RELAY 430 ohm 4p 2w - 4PCO
Continental Style Keyswitch SM4/22/4CA/21/430 SM4P 430/21 1A or 100V, 30W Contacts. Operate 6-10ms, release 3-4ms. |
New Old Stock | 5.90 |
| REL6441 |
 |
24V RELAY 650 ohm 4p 2w - 4PCO
Continental Style? RS 348-885 Contacts, 2A at 250V ac |
Ex Equip? Unused |
1.90 3.90 |
| REL6443 | . |
24V RELAY 700 ohm 4p 2w - 4PCO ITTT
25AO4C20A 250AEO Continental Style Contacts, 1A at 250V ac |
Unused? | 2.70 |
| REL6452 | 24V RELAY 700 ohm 2p 2w - 2PCO Varley VP2 CBB/26 | New Old Stock | 2.70 | |
| REL6467 | ' | 24-27V 2300 ohm 4p 2w - 4PCO Siemens & Halske Continental Style 6500/426 | Ex Equip? | 1.15 |
| REL6472 |
 |
24-48V RELAY 3000 ohm 2p 2w - 2PCO
ITT 24CO2C25D Typical Pull in 12V, drop out 7V. Ref FR08624 |
New Old Stock | 3.70 |
| REL6475 | 24-48V RELAY 4000 ohm 2p 2w - 2PCO Davall T21/2C | New Old Stock | 3.70 | |
| REL6525 |
 |
48V 2400 ohm 4p 2w - 4PCO National HC 4-P-DC48V Rated 3A 250V ac. | New Old Stock | 2.70 |
| REL6721 | . | 100V DC 4p 2w - 4PCO
Omron MY4 US DC100 Contacts rated 3A 28v dc or 120V ac. |
New Old Stock | 4.70 |
| REL6726 | . | 100V DC 2p 2w - 2PCO
Matsushita, Set-Reset twin coil Contacts rated 3A 30v dc or 250V ac. |
New Old Stock | 12.50 |
| REL6817 | . |
24V Plug-in RELAY 4p 2w - 4PCO
Kuhnke KB4 K6 or K4. Some sockets available for these types. |
Ex Equip? | 1.60 |
| REL6901 |
 |
PCB with two Continental relays. | Ex Equip | 0.90 |
| OCTAL RELAYS | ||||
| REL7322 | . | 12V 110 ohm 2p 2w - 2PCO RS Type 348-756 or OMRON MK2P | Unused | 4.00 |
| REL7412 |
 |
24V 530 ohm 2p 2w - 2PCO Keyswitch From an inspection batch | Unused? | 2.00 |
| REL7424 |
 |
24V 475 ohm 2p 2w - 2PCO RS 348-784 | Unused? |
2.50 |
| REL7731 | . | 100V 6800 ohm 2p 2w - 2PCO Omron MK2PE US | New Old Stock | 4.70 |
| REL7734 | . | 110V 6800 ohm 2p 2w - 2PCO Engel and Gibbs MP2 - Boxed | New Old Stock | 4.70 |
| REL7736 | . | 120V 2p 2w - 2PCO Norslo R15w With operating indicator bar on top. 10A contacts One only | New Old Stock | 4.70 |
| REL7743 |
 |
230V 9100 ohms ac coil 2p 2w - 2PCO Radio Spares Type 5 New Boxed One only | Unused | 8.00 |
| 11 PIN RELAYS | ||||
| REL8221 | . |
12V dc coil 3p 2w IMO type 60.13, 3PCO 10A 250V ac contacts. |
Unused | 4.00 |
| REL8426 | . | 24V 475 ohm coil 3p 2w - 3PCO RS Type 348-829 or Norslo | Ex Equip? | 2.90 |
| REL8514 |
 |
48V dc coil 3p 2w IMO type 60.13,
3p c/o 10A 250V ac contacts. |
Unused | 6.00 |
| REL8517 |
 |
48V dc coil 3p 2w Keyswitch KMK3P | Ex Equip? | 2.90 |
| REL8830 | . | 24V 125mA AC coil 3p 2w 3PCO RS Type 349-333 | Unused | 6.00 |
| REL8837 | . | 230V 14mA ac coil 3p 2w - 3PCO RS Type 348-813 | Used | 4.00 |
| REL8946 | . | 12V
Transistor amplified relay
2p 2w - 2PCO 7A rated at 240V ac or 30V dc. RS 348-245
Inputs from 3.5V to 50V. 3.5V 0.125mA; 5V 0.24mA; 15V 0.8mA; 50V 2.75mA |
Unused | 10.00 |
| POWER RELAYS and CONTACTORS | ||||
| REL9807 |
 |
230V ac coil 2p 2w - 2PCO RS Type 348-841 New Boxed One only | Unused | 8.00 |
| REL9811 |
 |
115V ac DPCO with 15A high voltage contacts.
Electro Methods Ltd Type 351/B. 800 ohm
 dc pull in at 15V release at 4V. Could be used as 24V relay. |
Unused | 9.00 |
| REL9817a | Base for RS Type 349-529. One only. | Unused | 3.00 |
|
| REL9822 |
 |
EHT High Voltage Relay. 4,200 ohm Coil ?115V ac or 48V dc Dirty | Used | 4.00 |
| STEPPING RELAYS and UNISELECTORS Polarised, special, choppers. | ||||
| REL9836 |
 |
Polarised Relay 12V 250+250 ohm, EET N29834C1 12 pin base. 40x20x50mm case |
Used? | 4.00 |
| REL9837 |
 |
Polarised Relay 12V 250+250 ohm, EET N29837B3 12 pin base. 40x20x50mm case |
Used? | 4.00 |
| REL9861 |
 |
21/22 Position Stepping Relay, Stepper relay.
3 pole 21 way switch Two coils for momentary operation, one to step other resets to position 0 using spring return. 100V.  |
Unused | 15.00 |
| REL9885 |
 |
Uniselector. 12 level GEC UNI.U. 12Y01L 99Z6704. 67/1.
21 ohm coil 50 position. 
2/12/5A GEC67/1 Unused in original box. |
Unused Boxed |
98.00 |
| SOLID STATE RELAYS | ||||
| REL9912 | . | 3-18V dc control, 240V 2.5A single pole switch. RS 348-431 | Unused | 7.00 |
| REL9915 | . |
A2410 Crydon IR 10A at 24 to 280V AC single way switch.
Controlling input 90-280V AC. Data sheet HERE |
Old Stock | 6.00 |
| TRANSDUCERS Measurement and Gauges | ||||
| TD101 |  |
Accelerometer + 1g. Maywood 5901. 10V excitation. Output 100mV per g. Operates down to zero frequency. Tested | Ex equip. | 10.00 |
| TD121 |
 |
Displacement Transducer -LVDT. DS1365 Penny and Giles. Approximately 70mm travel. 25mm diameter x 290mm long. | Ex equip. | 10.00 |
| TD122 |
 |
Displacement Transducer -LVDT. DS13nn Penny and Giles. Approximately 30mm travel. 25mm diameter x 120mm long. |
Ex equip. | 10.00 |
| Rotary Angular transducers and Servo Pots. See Potentiometers HERE | ||||
| TD2000 | . |
Pressure Transducers.
Various types available. Some Texas and Mensor Fused Quartz Bourdon tube gauges available. |
From 3.00 | |
| TD2020 |
 |
Pressure Transducer. Multitron Appleby and Ireland. One
only Type AI.741.DD.04.AS.01.01.A. 150mbar differential at up to 50bar/750psi. "Calibrated span 0/150mB, Minimum Span 0/50mB, Max Span 0/250mB." |
Used, Tested | P.O.A. |
| TD2030 |  |
Pressure Transducer. Celesco 5cm water gauge differential. 33mm square.  |
New Old Stock | P.O.A. |
| TD2040 |
 |
Pressure Transducer. Electrodynamics Bell and Howell.
4-326-L101 VG (Ventilated Gauge) 10 and 25 psi available. Also 4-366-0002-01M0 15psi VG |
Used | P.O.A. |
| TD2040a |
 |
Pressure Transducer. Electrodynamics Bell and Howell 4-326-0001. 100psiA | Used | P.O.A. |
| TD2040b |
 |
Pressure Transducer. Electrodynamics Bell and Howell
4-393-L201. 15 psi absolute. Body 20mm diameter x 95mm long |
Used/Unused | P.O.A. |
| TD2070 |
 |
Pressure Transducer. Druck PDCR 50/1. 70kPa. Absolute. 75mV full scale output. Body 35mm long x 13mm diameter.  |
New Old Stock | P.O.A. |
| TD2081 |
 |
Pressure Transducer. Setra 0-1.0 psi differential. 24V dc excitation. | Used | P.O.A. |
| TD2090 |
 |
Pressure Transducer. Sensym LX0503A. Piezoresistive absolute. | New Old Stock | P.O.A. |
| TD2171 | Texas and Mensor Fused Quartz
Bourdon tube gauges Various tunes available |
Used | P.O.A. | |
| TD2183 | . | Paroscience Digiquartz Pressure Computer - No transducer | Used | P.O.A. |
| TD2210 |
 |
Soil Pressure Cell. Kulite Type 0234 5 Bar. 55mm diameter,
15mm thick, inner sensor 25mm diameter. 
 |
Unused | 55.00 |
|
TD250 |
 |
Flow gauge. Ball bearing vertical tube type.
By Brooks Instrument BV of Veenendaal Holland. Calibrated as percentage of
maximum flow. With needle valve regulator. Label states:- 5 scale x 0.00285 l/min at gas S.G. of 1.0 at 70 deg F. Presumably full scale is 0.285 litres/minute. Used and Untested but ex working installation. Other types and ranges available. |
Used.
Untested |
5.00 |
| TD300 |
 |
STRAIN GAUGES Various old stock types available, mostly for transducer applications in 120 and 350 ohms, some examples are:- Kulite AEP-350-090W Micro-Measurements EA-06-250BG-120, EA-06-062TV-350, EA-13-(various)-120, EA-06-125BT-120, EA-06-125BZ-350, EA-09-250TR-350, EA-06-250TR-350, CD-02-20A, TK-09-CPB02-005. Mostly supplied in matched sets of 5 in sealed boxes. For interpretation of the coding, please see the pdf HERE. For further details of the Vishay Micro-Measurement Gauges see HERE on the Vishay site. M-line bondable connector strips available. |
Old Stock | Typically 6.00 per box of 5 |
| TD301 |
 |
STRAIN GAUGES. Assorted gauges
available for experiment; these are unused but from opened boxes.
Ideal for practicing bonding and demonstration. |
Old stock | 4 for 0.50 |
| TD400 | . | Thermocouples, Stainless sleeved. Various Lengths and fittings. | Unused old stock | From 2.00 |
| TD401 |
 |
Platinum Resistance Thermometer Rosemount. E120/25/64.
260mm long 9mm dia x 140mm and 6mm dia x64mm. Stainless rigid tube. |
New Old Stock | 12.50 |
| TD402 | . |
Platinum Film Thermometer. RS type 158-402.
Sealed bags (Current RS Stock item £24 plus tax) |
New Old Stock | 9.50 |
| See Thermistors for other temperature measurement items. | ||||
Last update: October 20, 2019
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