The Struthers-Dunn / MagneCraft 782XDX2M4L-24D is a 4PDT electric relay engineered for general-purpose switching and industrial control circuits. This plug-in relay operates on a 24 VDC coil with 650 Ω coil resistance and delivers 100,000 electrical operations at rated load. The 4PDT contact configuration supports switching up to 10 A per pole at 300 V maximum, with silver alloy blade terminals rated for 277 Vac at 12 A (CSA listed) and motor loads to 1 hp at 250 Vac. Response time is 20 ms with 1600 V(rms) dielectric isolation between coil-to-contact and pole-to-pole.
Technical Specifications
• Coil: 24 VDC nominal, 650 Ω resistance; 80% pickup, 10% dropout threshold; 0.9 W average consumption
• Contact Rating: 10 A per pole maximum; 300 V maximum switching voltage; silver alloy blade terminals
• Switching Capacity: 12 A at 277 Vac (CSA), 15 A at 120 Vac, 12 A at 28 Vdc; 1 hp motor at 250 Vac, 1/2 hp at 120 Vac; pilot duty B300
• Life: 100,000 electrical operations at rated load; 10,000,000 mechanical cycles unpowered
• Performance: 20 ms operating time; 1600 V(rms) dielectric strength (coil-contact and pole-pole)
• Operating Range: −40 to +55 °C ambient; storage to +85 °C
• Environmental: IP 40 protection; 3 g-n vibration resistance (10–55 Hz); 10 g-n shock rating
– Key Features
• Full-featured cover with locking push button and mechanical flag indicator
• Manual push-button operation for testing without coil power
• Lock-down door secures push button and contacts in powered position
• Removable ID tag for circuit identification
• Bi-polar LED status lamp option (ON/OFF coil indication)
• Finger grip cover design for tool-free removal
– Typical Applications
Industrial control circuits, switching systems, pilot duty applications, and circuits requiring manual override capability and visual status indication.
– Compatibility & Integration
Magnecraft 700 Series modular system. UL listed when used with appropriate Magnecraft sockets.

















