NTE Electronics RLY74 Series, RLY75 Series Catalog Page

Features

• Rated for Locked Rotor Applications

• Heavy Duty

• Multicontact

• .250” (6.35mm) Quick Connect Terminals

RLY74/75 Series

Industrial SPDT and DPDT, 20 Amp
Power Relays.

D71

2.070 (52.58) 1.620 (41.15)

1−COM

2−N.C.

3−N.C.

SPDT, 1 Form “C”

1 C

2 N.C.

3 N.O.

DPDT, 2 Form “C”

1 C 1 C

2 N.C. 2 N.C.

3 N.O. 3 N.O.

AC OPERATED

Coil

Res.

Approx.

Nom.

NTE Type No.

RLY7423 24VAC SPDT 35 4 VA 20A D71

RLY7425 120VAC SPDT 800 4 VA 20A D71

RLY7426 240VAC SPDT 3200 4 VA 20A D71

RLY7443 24VAC DPDT 35 4 VA 20A D71

RLY7445 120VAC DPDT 800 4 VA 20A D71

RLY7446 240VAC DPDT 3200 4 VA 20A D71

Volt.

Contact

Arr.

Ohms

(Typ)

Nom.

Power

Max.

Contact

Cur. @
28VDC
277VAC

Diag

No.

DC OPERATED

RLY7522 12VDC SPDT 50 3.0W 20A D71

RLY7523 24VDC SPDT 200 3.0W 20A D71

RLY7543 24VDC DPDT 130 4.5W 20A D71

Note 1. Relay is designed for operation with plunger either vertical or horizontal; however,

the relay is not designed for operation in an upside−down position.

2.420

(61.47)

1.200

(30.48)

.161 (4.09)
Dia (1)
Mounting Boss

.380

(9.65)

.614 (15.6)

.188 (4.78)

.166 (4.22)
Dia (1)
Mounting Hole

.940

(23.88)

.035 (0.89)

Electrical Specifications

Contact

Rating: 20 Amp @ 277 VAC

Pilot Duty: 360 VAC @ 125/250 VAC
Contact Horsepower Rating: 1 HP @ 125 VAC, 2 HP @ 250 VAC
Material: Silver and silver−cadmium oxide

Coil

Coil Voltages: See Chart
Resistance: See Chart

Operational Characteristics

Must Operate Voltage

Insulation Characteristics

Dielectric Strength

Environmental Characteristics

Operating: −10°C to +65°C

Life

Mechanical: 1 million operations/hour
Electrical: 50,000 operations/hour (under rated load)

60 LRA, 12 FLA @ 125 VAC
48 LRA, 8 FLA @ 240 VAC

AC Coil: 85% of nominal voltage @ +25°C
DC Coil: 75% of nominal voltage @ +25°C

Initial Breakdown Voltage: 1560V RMS, 60Hz
Insulation Resistance: Class B (130°C)

82

NTE Electronics, Inc. D Voice (973) 748−5089 D FAX (973) 748−6224 D http://www.nteinc.com