Add selective electric door-release control to a compatible Aiphone intercom system with the Aiphone RY-PA Door Release Relay.

The RY-PA is a compact 12VDC relay with a Normally Open dry contact, designed to interface compatible Aiphone intercom equipment with electric strikes and other door-release hardware.

It is commonly used with Aiphone LEF Series selective-call intercom systems, allowing individual doors to be released from the master station. For multi-door applications, a separate RY-PA relay is typically required for each door being controlled.

Key Features

• Genuine Aiphone RY-PA

• Door-release relay

• 12VDC relay operation

• Normally Open dry contact

• Designed for selective door release

• Compatible with select Aiphone LEF Series systems

• Interfaces intercom systems with compatible electric strikes

• Compact installation footprint

• Relay power supplied by compatible Aiphone system

• Ideal for commercial intercom and door-release applications

Product Specifications

Manufacturer: Aiphone
Model: RY-PA
Product Type: Door Release Relay
Relay Voltage: 12VDC
Contact Type: Normally Open Dry Contact
Contact Rating: 1A at 24VDC or 0.3A at 240VAC
Width: 2-3/16"
Height: 1-3/8"
Depth: 7/8"
Application: Intercom Door Release / Access Control

Selective Door Release

The RY-PA allows a compatible Aiphone master station to selectively activate an electric door release.

When the door-release function is activated, the relay closes its Normally Open contact and allows the external locking circuit to operate.

This is especially useful in systems where multiple door stations are connected to one intercom master.

LEF Series Applications

The RY-PA is designed for selective door-release applications with compatible Aiphone LEF Series master stations.

Compatible equipment includes select models such as:

• LEF-3L

• LEF-5

• LEF-5C

• LEF-10

• LEF-10C

• LEF-10S

System configuration and door-release capabilities vary by master station.

Always verify the wiring diagram for the specific Aiphone system.

Multiple Door Applications

For systems controlling multiple doors, one RY-PA is generally required for each door-release circuit.

For example:

• 1 Controlled Door – 1 RY-PA

• 2 Controlled Doors – 2 RY-PA Relays

• 3 Controlled Doors – 3 RY-PA Relays

This allows each entrance to be selectively released from the compatible master station.

Electric Strike Applications

The RY-PA's Normally Open contact makes it well suited for compatible fail-secure electric strikes that unlock when power is applied.

Typical system components may include:

• Aiphone intercom master station

• Aiphone door station

• RY-PA relay

• Electric strike

• Separate strike power supply

The RY-PA provides relay switching and does not serve as the primary power supply for the electric locking hardware.

Relay Contact Rating

Maximum relay contact rating:

24VDC: 1A
240VAC: 0.3A

Always confirm the voltage and current requirements of the connected device before installation.

Ideal Applications

• Commercial offices

• Reception entrances

• Schools and universities

• Healthcare facilities

• Government buildings

• Retail facilities

• Security stations

• Multi-door intercom systems

• Electric strike applications

• Selective door-release systems

Important Ordering Information

Before ordering, verify:

• Existing Aiphone intercom model

• RY-PA compatibility

• Number of doors requiring release

• Lock voltage and current draw

• Normally Open relay requirement

• External lock power-supply requirements

This listing is for the RY-PA relay only. Intercom stations, electric strikes, power supplies, wiring, and other system components are sold separately unless specifically stated.