187-Series Thermal Circuit Breaker Panel Mount
25 to 200A; up to 5000 A interrupt rating (AIC); heavy duty;
ignition protected; waterproof; combines switching and circuit breaker
function; cannot be held ON during fault condition
-  Combines switching and circuit protection into a single device*
 - Clear, single lever operation
 - "Trip Free" design cannot be held "ON" during fault current condition
 - Waterproof
 - Recessed mounting holes for clean appearance
 - Large Clearance around terminal studs accecpt heavy gauge wire lugs
 - Robust 5/16 M8 terminals provide high torque connections
 - Large lever with vertical/horizontal orientation provides indication of trip status
 - Ignition protected - Safe for installation aboard gasoline powered boats
 
* Do not use as a switch where high inrush currents are expected. 
 
| Interrupt Rating | 5,000 A@12V DC, 3,000A@24V DC, 1,500A@42V DC | 
| Maximum Voltage Rating | 48 Volts DC | 
| Operating Temperature Range | -40°C to 85°C | 
| Circuit Breaker Type | Thermally responsive bi-metal blade | 
| Circuit Breaker Class | Type III - switchable/manual reset - trip free | 
| Terminal Stud Size | 5/16"-18 | 
| Terminal Stud Torque | 75 in-lb | 
| Mounting Holes | Accept #10 (M5) Screw | 
| Weight Lb (Kg) | 0.50 (0.23) | 
| Case Material | Thermoset Polyester | 
 
Certifications & Agency Standards
- Marked
 - Meets SAE J1171 external ignition protection requirements
 - IP66—withstands water from heavy seas