Signaling Relays

Product Code Description Approved By

Relay AC LED.

Relay, plug-in-type, Style* ‘AC LED’ all aspects, AC Lamp proving relay unit with in-built current transformer type, slow release neutral line relay, 4F.4B contacts, front and back contacts metal to carbon, shall be suitable for working in series with the 110V AC, LED signal lamp rated at 15W confirming to RDSO spec. STS/E/Relays/AC lit LED signal/09-2002, BRA:941A, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be ABDHK.

RDSO

Relay ON Aspect

Relay, plug-in type, Style ‘ON’ aspect, AC lamp proving relay unit with in-built current transformer type, slow release neutral line relay, 4F.4B contacts, front and back contacts metal to carbon, shall be suitable for working in series with the primary winding of colour light signal  transformer confirming to IRS:S 59 (110V AC/12V AC) feeding 25/33 Watt, double pole, double filament signal lamps  confirming to BRS:941A, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be CFKMX.

RDSO

Relay OFF Aspect

Relay, plug-in type, Style ‘OFF’ aspect, AC lamp proving relay unit  with in-built current transformer type, slow release neutral line relay, 4F.4B contacts, front and back contacts metal to carbon , shall be suitable for working in series with the primary winding of colour light signal transformer confirming to IRS:S 59 (110V AC/12V AC) feeding 25/33 watt, double pole, double filament signal lamps confirming to  BRS:941A, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be CFJKM.

RDSO

Relay Route Aspect

Relay, plug-in type, Style ‘ROUTE’ aspect, AC lamp proving relay unit with in-built current transformer type, slow release neutral line relay, 4F.4B contacts, front and back contacts metal to carbon, shall be suitable for working in series with the lighting circuit of junction type route indicator (5 Lamps, 110V/25 watt, double pole, connected in parallel) confirming to BRS:942, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be CFKLX.

RDSO


Relay Shunt Aspect

Relay, plug-in-type, Style ‘SHUNT’ aspect, AC lamp proving relay unit with inbuilt current transformer type, slow release neutral line, 2F.2B contacts, front and back contacts metal to carbon, shall be suitable for working in series with the lighting circuit of junction type route indicator (2 lamps, 110V/25 Watt, double pole, connected in parallel) confirming to BRS:942, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be CFGJY.

RDSO

Relay QN1K, 6F/6B

Relay, Non- AC immune, plug in type style QN1K, DC neutral line, 24V, 1000 ohms 6F/6B contacts front contacts metal to carbon and back contacts metal to metal/carbon with plug board retaining clip & connectors conforming to BRS:930, IRS:S 34 & IRS:S 23 & RDSO Spec. No. STS/E/Relays/UEA(PI) dt.30.05.97 (as applicable). The Interlocking code for this unit shall be BDEKX.

RDSO

Relay QN1K, 4F/4B

Relay, Non- AC immune, plug in type style QN1K, DC neutral line, 24V, 1000 ohms 4F/4B contacts front contacts metal to carbon and back contacts metal to metal/carbon with plug board retaining clip & connectors conforming to BRS:930, IRS:S 34 & IRS:S 23 & RDSO Spec. No. STS/E/Relays/UEA(PI) dt.30.05.97 (as applicable). The Interlocking code for this unit shall be BDEKX.

RDSO

Relay QN1K, 8F/8B

Relay, Non- AC immune, plug in type style QN1K, DC neutral line, 24V, 1000 ohms 8F/8B contacts front contacts metal to carbon and back contacts metal to metal/carbon with plug board retaining clip & connectors conforming to BRS:930, IRS:S 34 & IRS:S 23 & RDSO Spec. No. STS/E/Relays/UEA(PI) dt.30.05.97 (as applicable). The Interlocking code for this unit shall be ABCDF.

RDSO

Relay QN1K, 12F/4B

Relay, Non- AC immune, plug in type style QN1K, DC neutral line, 24V, 1000 ohms 12F/4B contacts front contacts metal to carbon and back contacts metal to metal/carbon with plug board retaining clip & connectors conforming to BRS:930, IRS:S 34 & IRS:S 23 & RDSO Spec. No. STS/E/Relays/UEA(PI) dt.30.05.97 (as applicable). The Interlocking code for this unit shall be ABCDE.

RDSO

Relay QN1, 24V 8F/8B

Relay, Non-AC Immune, plug-in-type, Style* ‘QN1’, DC Neutral line, 24V, 8F.8B contacts, front and back contacts metal to carbon with plug board, retaining clip & connectors confirming to BRS:930A, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be ABCDF.

RDSO

Relay QN1, 24V, 12F/4B

Relay, Non-AC Immune, plug in type , Style* ‘QN1’, DC neutral line , 24V, 12F/4B contacts, front and back contacts metal to carbon with plug board, retaining clip & connectors confirming to BRS:930A, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be ABCDE.

RDSO

Relay QN1, 50V, 8F/8B

Relay, Non-AC Immune, plug-in-type, Style* ‘QN1’, DC Neutral line, 50V, 8F.8B contacts, front and back contacts metal to carbon with plug board, retaining clip & connectors confirming to BRS:930A, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be ABDEF.

RDSO

Relay QN1, 50V, 12F/4B

Relay, Non-AC Immune, plug in type , Style* ‘QN1’, DC neutral line, 50V, 12F/4B contacts, front and back contacts metal to carbon with plug board, retaining clip & connectors confirming to BRS:930A, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be ABCEF.

RDSO

Relay QNA1, 8F/8B

Relay, AC Immune, plug-in-type, Style* ‘QNA1’, DC Neutral line, 24V, 8F.8B contacts, front and back contacts metal to carbon, with plug board, retaining clip & connectors confirming to BRS:931A, IRS:S 60, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be ABDGH.

RDSO

Relay QNA1, 12F/4B

Relay, AC Immune, plug-in type, Style ‘QNA1’, DC neutral line, 24V, 12F/4B contacts front and back contacts metal to carbon, with plug board retaining clip & connectors conforming to BRS:931A, IRS:S 60, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be ABDFH.

RDSO

Relay QNA1K, 6F/6B

Relay, AC Immune, plug-in-type, Style* ‘QNA1K’, DC Neutral line, 24V, 1000 ohms 6F.6B, contacts, front contacts metal to carbon and back contacts metal to metal/carbon, complete with plug board, retaining clip & connectors conforming to BRS:930A, IRS:S 60, IRS:S 34, IRS:S 23 & RDSO Spec. No. STS/E/Relays/UEA (PI) dt.30.05.97 (Annexure-II) (as applicable). The interlocking code for this unit shall be CDEKY.

RDSO

Relay QT2,  9 ohm

Relay Non-AC immune plug in type style QT2 DC neutral track 9 ohm 2F.2B contacts front and back contacts metal to carbon complete with plug board retaining clip and connectors conforming to BRS:938A, IRS:S:34 & IRS:S:23 & firm’s specification (as applicable). The interlocking code for this unit shall be DEFJX.

RDSO

Relay QT2, 4 ohm

Relay, Non-AC Immune, plug-in type, Style ‘QT2’, DC Neutral track, 4 ohms 2F.1B contacts, front and back contacts metal to carbon, complete with plug board, retaining clip and connectors confirming to BRS:938A, IRS:S 34 & IRS:S 23 & firm’s specification (as applicable). The interlocking code for this unit shall be EHJKX.

RDSO

Relay QTA2, 9 ohm, 2F/1B

Relay, AC Immune, plug-in-type, Style* ‘QTA2’, DC Neutral track, 9 ohm 1.4V DC 2F. 1B contacts, front and back contacts metal to carbon, complete with plug board, retaining clip & connectors confirming to BRS:939A, BRS:966 (Appendix F2), IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be FGHKX.

RDSO

Relay QTA2,           9 ohm, 4F/2B

Relay plug in type QTA2 contacts 4F.2B (1) Product code (2) Relay type – QTA2 (3) Nominal working voltage/current – 1.4 DC (4) Contact configuration – 4F/2B (5) Coil Resistance in ohms – 9 (6) Maximum full operate current – 1.25 timed of pick up current (Max.) (9) Interlocking  - FGHKX (10) AC Immunity – At 120V AC 50 Hz (11) Reverse Polarity Test – N.A. (12) Interruption Test – N.A. (13) Specification No. BRS:939A & BRS:966 (Appendix – F2), IRS:S 34, IRS:S 23 (14) Remarks: AC Immune neutral Track Relay.                  

RDSO

Relay QS3, 4F/4B

Relay, Non-AC Immune, plug-in type, Style ‘QS3’, DC neutral line,12V,1000 ohms 4F.4B contacts, front contacts metal to  carbon and back contacts metal to metal/carbon, complete with plug board, retaining clip & connectors confirming to BRS:930, IRS:S 34 &               IRS:S 23 and firm’s specification (as applicable). The interlocking code for this unit shall be CDEKX.

RDSO

Relay QSPA1, 8F/4B

Relay, AC Immune, plug-in-type, Style* ‘QSPA1’, DC Neutral line, slow to pickup, 24V, 8F. 4B contacts, front & back contacts metal to carbon, complete with plug board, retaining clip & connectors confirming to BRS:933A, IRS:S 60, IRS:S 34 & IRS:S 23 (as applicable). The interlocking code for this unit shall be ABDEJ.

RDSO