Astronics / EADS / Racal 1260-16 Relay Actuator Module

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).