The Astronics/EADS/Racal 1260-12 Actuator Relay Module is a 20-channel signal switching component for aerospace and industrial control applications. Each channel provides Double-Pole, Double-Throw (DPDT) relay switching up to 220 VDC or 250 VACrms at 2A maximum. Channels operate independently or combine for complex switching networks, with built-in relay coil confidence monitoring to verify proper operation.
## Technical Specifications
**Switching Capacity (Per Channel)**
• Maximum voltage: 220 VDC or 250 VACrms
• Maximum current: 2A (DC or ACrms)
• Maximum power: 60W (DC) / 62.5VA (AC)
• Path resistance: 200 mΩ at 2A
• Isolation: >10⁹ Ω
**AC Performance (50Ω)**
• Bandwidth: 35 MHz typical (-3dB)
• Capacitance (open channel, channel-chassis): <25 pF
• Insertion loss: <0.2dB @ 100kHz, <0.25dB @ 1MHz, <0.5dB @ 10MHz
• Crosstalk: <-75dB @ 100kHz, <-60dB @ 1MHz, <-40dB @ 10MHz
**Physical & Environmental**
• Channel count: 20 DPDT relays
• Cooling requirement: 1.0 liters/sec airflow
• CE Mark compliance: European electrical safety standards, RF emissions, electromagnetic immunity
## Key Features
• Configurable relay networks—join channels or operate independently
• User-selectable confidence checking on relay coils
• Message-based control interface (Option 01)
• Simple command syntax: CLOSE .
## Typical Applications
• Aerospace signal routing and circuit control
• Industrial switching and device management
• Complex control systems requiring precision relay matrices
• Multi-channel circuit configuration and reconfiguration
## Compatibility & Integration
Designed for integration with mainframes and carriers supporting the Option 01 message-based interface. Distinct from related 1260 series modules: the 1260-120 offers SPST high-power switching (up to 13A @ 250VAC or 10A @ 125VDC); the 1260-112 provides high-density DPDT with 120 MHz bandwidth for digital and differential analog signals.
