The Astronics/EADS/Racal 1260-16 Relay Actuator Module is a C-size, single-slot VXIbus module that provides 40 independent SPDT channels for general-purpose switching and control of external devices. Each channel switches up to 5 A at 30 VDC or 250 VACrms, with maximum switchable power of 150 W DC or 1250 VA per channel. The module delivers 30 MHz bandwidth (-3 dB) with insertion loss 45 dB isolation. Relay coils feature user-selectable confidence monitoring to verify proper operation.
## Technical Specifications
• **Channels:** 40 SPDT (Single-Pole Double-Throw)
• **Switching Capacity:** Up to 5 A; 30 VDC or 250 VACrms; 150 W DC / 1250 VA maximum per channel
• **Frequency Response:** 30 MHz bandwidth (-3 dB)
• **Insertion Loss:** <0.25 dB @ 1 MHz; 45 dB @ 1 MHz; >30 dB @ 10 MHz; >10⁹ Ω
• **Crosstalk:** <-60 dB @ 1 MHz; <-40 dB @ 10 MHz
• **Capacitance:** <150 pF (open channel); <450 pF (channel-chassis)
• **Switch Endurance:** 10,000,000 mechanical operations; 500,000 electrical @ 250 VAC / 1.5 A
• **MTBF:** 329,990 hrs @ 25°C; 305,256 hrs @ 30°C
• **Power Requirements:** +5 VDC @ 0.25 A; 80 W maximum dissipation
## Key Features
• Relay coil monitoring with user-selectable confidence checking
• Provision for fuse or surge suppression components
• 4 × 50-pin Positronic connectors on front panel
• Message-based control via Option 01 or Option 01T interface
## Environmental & Physical
• **Operating Temperature:** 0 °C to +55 °C
• **Storage Temperature:** -40 °C to +71 °C
• **Operating Altitude:** 10,000 ft
• **Humidity:** 85% ± 5% non-condensing at <30 °C
• **Weight:** 3.3 lbs (1.5 kg) with Option 01T; 2.77 lbs (1.25 kg) with Option 01
• **Cooling:** 5.4 L/s airflow
• **EMC:** EN55011A; IEC 901-2,3,4 per EN 50082-1; EN 61010-1 Pollution Class 2
## Compatibility & Integration
Integrates directly into VXIbus systems. Control via Racal Instruments Option 01 Smart Card (message-based) or Option 01T Switch Controller Card (message and register-based).
