X-XX UL
INSTALLATION INSTRUCTIONS
®U.S. Registered Trademark
Copyright © 1999 Honeywell Inc. • All Rights Reserved
69-1293-1
RA889A
Switching Relay
APPLICATION
The RA889A Switching Relay provides intermediate
switching of line- and low-voltage devices from a line- or
low-voltage controller and is typically applied in hydronic
heating systems.
SPECIFICATIONS
Electrical Ratings:
Voltage: 120 Vac, 60 Hz.
Thermostat Heat Anticipator Setting: 0.12A.
Transformer Ratings:
Primary: 120 Vac, 60 Hz.
Secondary: 24 Vac, 12 VA maximum; 9 VA available for
external loads. Secondary is protected by replaceable
1A automotive fuse.
Contact Ratings:
15 AFL, 30 ALR; maximum connected load 2000 VA.
Switching Action:
Spdt, plus extra low voltage Spst.
Electrical Connections:
No. 8 captivated wire clamp screw terminals.
Dimensions:
See Fig. 1.
Cross Reference:
The RA889A replaces many Honeywell models. See
Table 1 for additional cross reference information.
Replacement Parts:
Replacement Fuse: Use a 1A automotive fuse.
4
(114)
1
2
1
(48)
7
8
3
8
(10)
3
8
(10)
5
32
1 (29)
1
4
4 (108)
1
2
3 (89)
5
(133)
1
4
3
32
(2) DIAMETER
1
2
(13) DIAMETER
KEYHOLE TYPE
MOUNTING HOLE
7
8
(22) DIAMETER
7
32
(6) DIAMETER MOUNTING HOLE
1
(48)
7
8
25
32
(20)
KNOCKOUT FOR
1/2 (13) CONDUIT (3)
3
8
1 (35)
M3823A
2
(75)
15
16
Fig. 1. RA889A dimensions in in. (mm).
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