Two Porter and Brumfield KRPA-11AG-120 Power Relays.

The KRPA-11AG-120 is a specific type of power relay with the following features:

Configuration: It is a 2-pole power relay with a DPDT (Double Pole Double Throw) contact configuration. This means it has two sets of contacts that can switch between two separate circuits.

Plug-in Design: The relay is designed with an octal-style plug, allowing for quick installation and easy replacement.

Contact Current Rating: It has a contact current rating of 10A, which means it can handle a maximum current of 10A through its contacts.

Coil Resistance: The coil of the relay has a resistance of 2.25kΩ. This value determines the electrical resistance of the coil circuit.

Coil Voltage: The relay's coil operates at a coil voltage of 120VAC. This is the voltage required to energize the coil and activate the relay.

Contact Material: The contacts of the relay are made of silver cadmium oxide. This material is commonly used in power relays due to its good electrical conductivity and resistance to arcing.

Termination Type: The relay features an octal type termination, which is a specific type of socket connection for quick and easy installation. This allows the relay to be easily plugged into a compatible socket.

Mounting: The relay is designed for socket mounting, which means it can be securely mounted in a socket or base.

Magnetic System: The relay utilizes a monostable AC coil magnetic system. This means that the coil is energized to switch the contacts, but it returns to its original position when power is removed.

Coil Insulation: The relay has Class B UL coil insulation. This insulation rating ensures that the coil is adequately insulated for safe operation according to UL (Underwriters Laboratories) standards.