Power Switching Devices - Relays

Three power switching relays are available for the LCS-2 lighting management system.

The relay drive hardware is fully protected against short circuits, transient discharge, and static discharge. The relays can be turned on and off sequentially to reduce peak load demand. The peak load delay for each relay is programmed to allow for inductive or resistive load types.

SPI-6161

SPI relays are 2-wire latching relays that are lighting load rated for standard 20a branch circuits.

SPI 2-wire heavy duty HID relays are suitable for all types lighting loads including capacitor corrected HID ballasts.

The SPI-HID latching relay is fully rated for 20 amp tungsten and inductive loads at 120 or 277 or 347 volts. This relay is designed to withstand the high inrush currents found in some of the new electronic ballasts. The oversize contact mechanism is rated to withstand 2,000 amp inrush current and 1,500 amp short circuit. Relay contains a manual operating lever with ON/OFF status indicator and is available in single pole units with optional 1 amp auxiliary contacts.

Click here to view a diagram and data sheet for the SPI-6161 HID relay.

General Electric RR7 Relay

The standard GE RR series relays have been in use for over 40 years. They are known to practically every electrical contractor. Each of the GE automation options uses the RR7P or RR9P as the basic power switching device. The relay employs a split low-voltage (24V) coil to move the line-voltage contact armature to the ON (OFF) latched position. The ON coil moves the armature to the left when a 24 V controls signal is impressed across its leads. The armature latches in the ON position and will remain there until the OFF coil is energized.

• Stable Operation. Since the relay latches in the ON or OFF position, power outages do not result in a change of state. (Lights stay where they were after a power outage.)
• Minimal Power Consumption. Control power is only required when the relay changes state.
• Ability to Support Multiple Input Devices. After the relay responds to a commentary pulse, it is then "free" to accept another pulse from any other control devices wired to it. The relay position is always controlled by the last signal.