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Imtra Thermal Breakers
Cat. No. SPA-1870
Weight 1 lbs

These Bussmann® breakers are available in 50, 70, 110 and 150A sizes and are offered in surface-mount or thru-bulkhead versions.  Thru-bulkhead models include a faceplate and install with a simple 2-1/8" holesaw cutout.  All are IP66 for use in wet locations.  Connections are 5/16" to accept large terminal lugs.  All accept input voltage up to 48VDC.

Features & Benefits:
  • Switchable/Manual reset
  • Single lever
  • Ignition protected
  • Weather proof
  • Mounting hole clearance for 5mm or 10-32 screws
  • Robust 5/16-18 electrical termination studs in corrosion resistive materials.
  • Large clearance around studs to accept large gauge wire lugs.
  • All components meet SAE J1171 Ignition Protection
  • Vapor proof
SPA-187050 50 Amp Thermal Breaker, Thru-Bulkhead
SPA-187070 70 Amp Thermal Breaker, Thru-Bulkhead
SPA-187110 110 Amp Thermal Breaker, Thru-Bulkhead
SPA-187150 150 Amp Thermal Breaker, Thru-Bulkhead
SPA-187050F 50 Amp Thermal Breaker, Surface Mount
SPA-187070F 70 Amp Thermal Breaker, Surface Mount
SPA-187110F 110 Amp Thermal Breaker, Surface Mount
SPA-187150F 150 Amp Thermal Breaker, Surface Mount

Product Details
Description: Bussmann® Thermal Circuit Breaker
Voltage: 12-48VDC
IP Rating: IP66
Terminals: 5/16"
Dimensions: 3-1/4" x 4-1/2"
Hole Saw Cutout: 2-1/8"
Circuit Breaker Class: Type III
Case Material: Thermoset polyester
Weight: 1.000 lbs.



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