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WF-8740 40 Amp Power Center


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Automatic three-stage charging provides superior 12-volt system performance, while maintaining the ideal charge and maintenance of your battery.

WF-8740 model converters provide 40 Adc output and a highly reliable nominal 13.6 Vdc with or without a battery. No extra filtering is required.

WFCO’s three-stage battery charging results in longer battery life and is totally automatic. Nominal voltage output modes are a 13.2 Vdc range "float" mode, 13.6 Vdc range "absorption" charge mode, and a 14.4 Vdc range "bulk" charge mode. Short-circuit and reverse polarity protection provide you with further reliability and peace of mind. The cooling fan for the WF-8740 operates only when needed and ensures quiet operation. Front-cooled fan installation does not create additional installation space requirements.

Every model is designed to comply with FCC Class B, which means that the converters do not cause interference with televisions, radios or other signals. The 8740 model also brings you the convenience of built-in AC and DC distribution. 30-amp main AC breaker and a total of up to five 20-amp branch AC circuits can be installed. Six DC branch circuits include LED lights that illuminate to indicate open circuits.


UL and cUL -Listed. FCC Class B
Warranty period: Two Year Limited Product Warranty
Output power: 40 amps DC output
Input: 105-130 VAC, 60 Hz

Output ranges:

   - Nominal (Absorption Mode) 13.6 Vdc (includes charging and load)
   -Boost (Bulk Mode) 14.4 Vdc
   -Trickle (Float Mode) 13.2 Vdc (after 48 hrs.)

Dimensions: 11 3/4” wide; 8 1/4” high; 5” deep
Weight: 5.5 lbs.

Spec. Sheet



Add to Cart:

  • Model: WF-8740P
  • Shipping Weight: 5.5lbs
  • Manufactured by: WFCO Electronics