GE RR7 - 20A SPST Low Voltage Relay

GE Model RR-7 is a mechanical latching-type unit requiring only momentary 24 VAC switch circuit pulses to open or close line voltage circuits. All GE low voltage relays may be used to full-rated capacity for tungsten filament, ballast, or resistive loads.

General information: UL listed, CSA certified; mounts in standard 1/2" K.O. - 0.865" to 0.875" (nominal 22 mm) dia - in 14- or 16-gauge material; operates in any position

Operating voltage: 24-29 VAC (±10%) half or full wave rectified or pure, 30-38 VDC (±10%) filtered

Min activating pulse: 50 ms

Coil impedance: 75-85© @60 Hz unrectified 55-60© DC resistance

Coil inrush current: 325 mA @ 24 VAC

Contacts: SPST maintained (mechanical latching)

Weight:  0.3 lb (0.12 kg)

Terminals: Two terminals, two back wiring holes per terminal for use with #14-10 AWG solid or stranded wire (copper wire only)

Lamp load: 20A tungsten filament 125 VAC 20A ballast 277 VAC

Resistive load: 30A 277 VAC

Motor load: 1/2 hp @ 110-125 VAC 1/2 hp @ 220-277 VAC

Temp: 32° to 140°F (0° to 60°C)

Relative humidity: 10% to 95% RH non condensing

Dimensions: 1.375"W x 1.6875"L x 2.375"H (3.5 x 4.29 x 6.03 cm)

Endurance: 50,000 cycles, full load 100,000 cycles, no load.

Lead length: 6" (15 cm)

The relay always goes to the state commanded. For example, multiple off commands will simply keep the contacts in the off position.

Since the relay latches in the on or off position, power outages do not result in a change of state.

Control power is only required when the relay changes state.

Pulse control signals coupled with latching allow any number of switches or electronic control devices to operate the same relay. The relay position is always dictated by the last signal.

Internal Wiring

Important Considerations and Restrictions

1. Relays connected in parallel - Two or more relays connected in parallel will operate together.

2. Do not use these relays to switch DC loads. Doing so will damage the power contacts.

3. For longer life, use half-wave rectified AC voltage for relay control.