12-Position ST CLB Circuit Breaker Block
Features
- Circuit breakers snap easily into place with quick-connect clips
- Tin-plated copper busses and screw terminals for reliable performance
- Clear insulating cover with square label recesses meets ABYC/USCG insulation standards
- Clip-on cover is easy to open
- Breakouts offer two-way wire access
- Accepts ring terminals
- Optional waterproof boots or dress nuts can be installed over the cover
Specifications:Circuits: 12
Max Amperage: 32A per circuit, 40A per jumped circuit group
Max Voltage: 32V DC
Mounting: #8 Screw (M4) or #8 Nut
Source: Independent Source
Min Operating Temp: -10°C
Max Operating Temp: 60°C
Mounting Centers: 10.13" (257.3 mm)
Screw Terminal Type: #8-32 Screws with Captive Star Lock Washer
Height: 6.69" (169.93 mm)
Weight: 1.50 lb (0.68 kg)
WARNING: This product exposes you to chemicals like di(2-ethylhexyl)phthalate (DEHP), known in California to cause cancer, birth defects, or other reproductive harm. For more info, go to P65Warnings.ca.gov.
Specifications:
- Amperage: 32/40A
- Box Dimensions: 3"H x 5"W x 18"L, WT: 1.3 lbs
- UPC: 632085050511
Brochure (pdf)

Using this 12-position circuit breaker block is a breeze. First, snap your circuit breakers into place with the quick-connect clips. The tin-plated copper busses and screw terminals ensure a stable connection. You can access wires from two directions through the breakouts, and the block accepts ring terminals. When it comes to mounting, use the #8 screw or nut. Just make sure to operate it within the temperature range of -10°C to 60°C. For protection, you can install optional waterproof boots or dress nuts over the cover. The cover itself is easy to open for any adjustments. Keep in mind that this product contains chemicals that can be harmful, so be aware of the California warning. To maintain it, check the connections regularly and keep it clean. Avoid using it in extreme conditions outside the specified temperature range.