Competitive Cross Reference

54 55
RELAYS/CONTACTORS/TRANSFORMERS
Resideo offers a complete range of relays, contactors and transformers for all your residential
and commercial HVAC applications. All Resideo products are designed to exceed safety and
industry life cycle standards. In order to meet these criteria, a statistically signi cant sample of
Resideo products are tested to failure and to our stringent quali cation requirements. This testing
methodology enables Resideo to verify that these products will exceed industry standards.
RELAYS
Resideo’s switching relays are available in multiple con gurations for various applications. For whatever you need — general purpose
relays or electric heat relays — Resideo has you covered.
General Purpose and Heavy-Duty Switching Relays — R4222, R8222, R4228 and R8228 for use in refrigeration and air-
conditioning equipment, appliances and vending machines
Fully Enclosed Line and Low-Voltage Fan Relays — R4225 and R8225 for control of line voltage fan motors and auxiliary circuits.
Relays
Input Voltage/
Coil Voltage Switching Product Number
Full Load
Amp Rating Frequency
Electrical
Connections (main) Special Features
24 Vac DPST N.O. R8228D1018 5.5 A 1 7/8 x 2 5/32 x 2 3/8 Q
24 Vac DPDT (1 P & 1 P Duty) R8222V1003 12 A 1 7/8 x 2 5/32 x 2 3/8 Q
24 Vac DPDT — Pilot Duty R8222N1011 12 A 1 7/8 x 2 5/32 x 2 3/8 Q Pilot duty
24 Vac DPDT R8222D1014 12 A 1 7/8 x 2 5/32 x 2 3/8 Q
24 Vac SPDT R8222B1067 12 A 1 7/8 x 2 5/32 x 2 3/8 Q
120 Vac DPDT — Pilot Duty R4222N1002 12 A 1 7/8 x 2 5/32 x 2 3/8 Q
120 Vac DPDT R4222D1013 12 A 1 7/8 x 2 5/32 x 2 3/8 Q
120 Vac SPDT R4222B1082 12 A 1 7/8 x 2 5/32 x 2 3/8 Q
208/240 Vac DPDT R4222D1021 12 A 1 7/8 x 2 5/32 x 2 3/8 Q
24 Vac SPDT R8225A1017 14 B 2 11/16 x 2 1/2 x 3 7/16 L
24 Vac DPST N.O. R8225D1003 14 B 2 11/16 x 2 1/2 x 3 7/16 L
24 Vac SPDT R8228B1012 18 A 1 7/8 x 2 5/32 x 2 3/8 Q
Electric Heat Relays
24 Vac DPST R8229A1005 7 B 2 3/16 x 2 3/32 x 2 1/4 CHS
24 Vac DPST R8229A1021 7 B 2 3/16 x 2 3/32 x 2 1/4 CHS Extra mounting hardware
Electric Heat Contactor
24 Vac DPST R8246A1038 30 2 3/16 x 2 1/4 x 3 5/16 Q, S
Frequency: A — 60 Hz/50 Hz; B — 60 Hz, C — 50 Hz
Approvals: UL, CSA
Temp Rating: -20° F to +150° F; 115° F max for R8225
Connectors: CHS — Combination Head Screw; L — Leadwires; Q — Quick Connect; T — Terminals
SPST: Single Pole Single Throw
DPST: Double Pole Single Throw
DPDT: Double Pole Double Throw
SPDT: Single Pole Double Throw
Universal Transformers
Electrical
Ratings
(VA)
Electrical Ratings
(Input Voltage)
Product
Number
NEMA
Rated Mounting
Main Con-
nections
Secondary
Connections Frequency
Dimensions (in.)
H x W x D Notes
40 VA 208/240 Vac AT72D1733 Yes M L S A 3 7/32 x 2 7/32 x 3 1/16 Only in Canada
50 VA 120/208/240 Vac AT87A1106 Yes M L S A 2 15/16 x 2 7/32 x 2 1/4
Built-in protection; Primary
winding burnout
20 VA 120/208/240 Vac AT120A1004 No M L S B 2 7/8 x 1 7/8 x 2 15/16 Metal end bells
40 VA 120/208/240 Vac AT140A1018 No M S B 3 3/16 x 2 3/8 x 3 1/8 Metal end bells
75 VA 120/208/240 Vac AT175A1008 No M L S B 3 3/16 x 2 3/8 x 3 5/8 Metal end bells
Transformers
19 VA 120 Vac AT20A1123 Yes F L L A 2 x 2 1/4 x 1 7/8
40 VA 120 Vac AT72D1006 Yes P L S A 3 7/32 x 2 7/32 x (1 1/16 into x 2 in. above plate)
40 VA 120 Vac AT72D1089 Yes F L S A 3 7/32 x 2 7/32 x 3 1/16
40 VA 120 Vac AT72D1188 Yes P L L A 3 7/32 x 2 7/32 x 2 15/16
40 VA 120 Vac AT72D1683 Yes M L S A 3 7/32 x 2 7/32 x 3 1/16
40 VA 120 Vac AT72D1956 Yes M L L A 3 7/32 x 2 7/32 x 3 1/16 Only in Canada
40 VA 208/240 Vac AT72D1691 Yes M L S A 3 7/32 x 2 7/32 x 3 1/16
48 VA 277 Vac AT87A1189 Yes F L L A 2 15/16 x 2 7/32 x 2 1/4
Energy limiting overload protection
48 VA 480 Vac AT87A1155 Yes F L L A 2 15/16 x 2 7/32 x 2 1/4
20 VA 120 Vac AT120B1028 No F L L B 1 11/16 x 3 3/16 x 1 3/4 Metal end bells
40 VA 120 Vac AT140A1000 No M L S B 3 3/16 x 2 3/8 x 3 1/8 Metal end bells
40 VA 120 Vac AT140B1206 No F L L B 1 11/16 x 3 1/2 x 1 3/4
Plastic end caps
40 VA 120/208/240 Vac AT140B1214 No F L L B 1 11/16 x 3 1/2 x 1 3/4
50 VA 120/208/240 Vac AT150A1007 No M L S B 1 11/16 x 3 3/16 x 1 3/4 Metal end bells
50 VA 120/208/240 Vac AT150F1022 No M L L B 3 3/16 x 2 3/16 x 3 5/8
Button for resetting circuit breaker &
metal end bells
50 VA 208/277/480 Vac AT150F1030 No M L L B 3 3/16 x 2 3/16 x 3 5/8
50 VA 277 Vac AT150B1252 No F L, Q L, Q A 1 11/16 x 3 1/2 x 1 3/4 Plastic end caps
75 VA 120/208/240 Vac AT175F1023 No M L L B 3 3/16 x 2 3/16 x 3 15/16
Button for resetting circuit breaker &
metal end bells
75 VA 208/277/480 Vac AT175F1031 No M L L B 3 3/16 x 2 3/16 x 3 15/16
75 VA 120 Vac AT88A1005 No F L L A 2 15/16 x 2 3/16 x 3 5/16
Internally fused secondary for
overload protection
75 VA 480 Vac AT88A1047 No F L L A 2 15/16 x 2 3/16 x 3 5/16
Frequency: A — 60 Hz/50 Hz; B — 60 Hz;
Mounting: C — Conduit ; F — Foot; P — Plate; M — Foot, Conduit, Plate (F models do not come with plate options)
Connections: L — Leadwires (9 in. to 13 in.); Q — Quick Connects; S — Screw Terminals
Approval: UL, CSA
TRANSFORMERS
Resideo offers NEMA — standard DC20-1992 and general purpose transformers. These
transformers are available with single or multiple input voltages and with foot, conduit
and plate mounting options. Transformers with circuit breakers that can be manually reset
by pressing a button are also available. Resideo also designs transformers for speci c
environmental requirements and with specialized termination options.
55