The Astronics/EADS/Racal 1260-111 is a high-power reed relay plug-in module engineered for high-voltage and high-current switching in demanding test environments. This Form A/B configuration delivers 24 independent dry-reed relays—12 Form A (SPST-NO) and 12 Form B (SPST-NC)—integrated into the Adapt-a-Switch™ family for seamless deployment in VXIbus or GPIB/RS232 switching systems.
## Technical Specifications
• **Contact Configuration:** 12 × Form A (SPST-NO) + 12 × Form B (SPST-NC) independent dry-reed relays
• **Maximum Switching Voltage:** 1000 VDC/VACpk-pk
• **Maximum Switching Current:** 2 ADC or 2 AAC
• **Maximum Switching Power:** 60 W
• **Maximum Switching VA:** 60 VA
• **Contact Resistance:** ≤ 500 mΩ initial path resistance
• **Thermal EMF:** ≤ 40 µV
• **Insulation Resistance:** ≥ 10⁹ Ω
• **Minimum Breakdown Voltage:** 1.5 V
• **Switching Time:** ≤ 2 ms (including settling)
• **Rated Switch Operations:** 1,000,000 typical at 60 W resistive load
• **MTBF (MIL-STD-217E):** ≥ 300,000 hrs
• **MTTR:** ≤ 5 min
## Key Features
• Operating temperature range 0°C to 55°C; storage to −40°C to 75°C
• Operating altitude to 10,000 ft; non-operating to 15,000 ft
• Environmental tolerance: 85% ±5% RH non-condensing at ≤35°C
• Mechanical shock rated 30 g, 11 ms half-sine
• Vibration performance 0.013 in pk-pk, 5–55 Hz
• Meets EN61010-1:1993+A2:1995 safety; EN55-11A emissions; EN61326:1997+A1:1998 immunity
• Compact form factor: 4.5″ H × 0.75″ W × 9.5″ D, 12 oz (0.34 kg)
## Typical Applications
High-power DC/AC switching, signal routing, automated test and measurement, relay matrix switching in laboratory and production environments.
## Compatibility & Integration
Designed for the Racal Instruments™ 1260-100 Adapt-a-Switch™ Carrier (VXIbus with Option 01T for message and register-based operation) or the 1256 Switching Chassis (GPIB/RS232). Driver support available for LabWindows™/CVI and LabVIEW™. VXIplug&play compatible with Win32® frameworks. Requires 48-pin DIN connector (not supplied).
