Lucas 26RA and 28RA Relays
The two SRB411 relays I have tested have winding resistance of 58Ω and can be used in place of 6RA relays. The one 28RA (SRB501) tested is 70Ω and can be substituted for 6RA and 26RA.
Grey highlights in the following tables indicate that there is something odd about this particular relay and is probably a special purpose unit. I list 24v relays so you know not to use them.
26RA and 28RA Relays |
||||||||||
EN |
ICN |
Type |
Amps |
Volts |
Duty |
Desc |
Pin out |
Circuit |
Housing |
Notes |
|
SRB400 |
26RA |
20a |
12v |
|
Normally Open Double Contact |
|
cir10 |
h10 |
2 |
54038125 |
SRB401 |
26RA |
|
12v |
|
Normally Open |
|
|
|
4 |
|
SRB402 |
26RA |
20a |
12v |
|
Normally Open |
|
cir11 |
h10 |
2 |
|
SRB411 |
26RA |
20a |
12v |
|
Change Over |
|
cir12 |
h10 |
2 |
|
SRB420 |
26RA |
10a |
24v |
|
Change Over |
|
cir12 |
h10 |
2 |
33375 |
SRB500 |
28RA |
20/30a |
12v |
|
|
|
|
|
3,4,6 |
33398 |
SRB501 |
28RA |
20/30a |
12v |
|
Change Over |
|
|
|
3,5,6 |
33412 |
SRB510 |
28RA |
10/20a |
24v |
|
|
|
|
|
3,4,7 |
33415 |
SRB511 |
28RA |
10/20a |
24v |
|
|
|
|
|
3,5,7 |
51154201 |
CYB580 |
28RA |
|
|
|
Relay plug block |
|
|
|
3 |
Notes |
||
Note Number |
Note |
Illustration |
2 |
XCB630a 1993 |
|
3 |
Lucas Cable 5848 1982 |
|
4 |
without bracket |
|
5 |
with bracket |
|
6 |
12v Current Rating (Resistive) 30a open, 20a closed |
|
7 |
24v Current Rating (Resistive) 20a open, 10 closed |
|
cir10 |
Contact is doubled inside |
|
cir11 |
Normally Open |
|
cir12 |
Change Over |
|
h10 |
Housing for 26RA
|
|
h11 |
Housing for 28RA |
|
All images on this page copyright Lucas Electrical Ltd, 1989.
This page last updated December 31, 2005