Newmar ERC-12-15 Emergency Relay [ERC-12-15]
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ERC-12-15 Emergency Relay
The Emergency Relay/Charger is a device for assuring immediate backup power to communications equipment in the event AC power is temporarily lost to the power supply or the supply fails. In addition, it will allow the power supply to act as a “trickle” battery charger without any additional modification.
When loss of DC voltage is sensed by the ERC, it employs a fast-acting S.P.D.T. relay to automatically switch the equipment’s DC input over to a standby battery to allow continued operation. When the power supply is returned to service, the ERC disengages the battery and puts the supply back online to provide DC voltage. While the power supply is operating normally, a small portion of the output current is directed to the battery to trickle-charge and maintain it at full voltage. (Note: Battery float voltage will be maintained at .7 volts lower than the power supply voltage.)
Note: If the power supply is down for an extended period, the backup battery may become significantly discharged while powering the radio. When the supply returns to service, the trickle charge rate of the ERC may be insufficient to restore the battery to full charge in a timely manner. In the event this occurs, a supplemental charger may be necessary to bring the battery to full charge.
Installation
Select a suitable location as close to the battery as possible where there is no likelihood of accidental contact and shorting of the terminals. The ERC may be mounted vertically, horizontally, or even upside-down, if necessary, without affecting its operation. Two # 10 sheet metal or wood screws will be needed. Mounting on a metal surface is acceptable as the inputs and outputs are isolated from the mounting bracket.
Note: If the battery is stored in an unventilated enclosure, it is not recommended that users mount the ERC within the same enclosure. As with any relay, it should not be in an area where there may possibly be battery gases or any other potentially explosive gases present.
Wiring
The wiring should be as direct as possible. Ensure that the battery posts are free from corrosion. Determine the correct gauge wire using the information below. The wire length is the total length of the run (ERC-to-Radio + Power Supply-to-ERC) or (ERC-to-Radio + Battery-to-ERC), whichever is longer.
- 5 ft. wire length = #14 AWG
- 10 ft. wire length = #12 AWG
- 15 ft. wire length = #10 AWG
- 20 ft. wire length = #10 AWG
Use the provided crimp ring lug connectors to secure wiring to the ERC. Models ERC-12-15 and ERC-24-15 are provided with yellow plastic terminal covers, which must be reinstalled after wiring to prevent accidental shorting.
Specifications:
- Input Range: 10.0-14.5 VDC (12V)
- Relay Rating: 10 amps continuous & 15 amps intermittent
- Float Trickle (typical): 0.1 amps
- Dimensions (inches): 5-1/8" x 2-7/8" x 2-3/8"
- Weight: 0.5 lbs.
Owner's Manual (pdf)
30-Day Returns & Fast Shipping
Most eligible items may be returned within 30 days of delivery. Items must be unused, uninstalled, and returned in their original condition with all original packaging, accessories, hardware, and components.
Returns caused by ordering the wrong item, incorrect vehicle or product fitment, incorrect size or quantity, accidental purchase, change of mind, or other customer error are subject to a minimum 20% restocking fee. Depending on the condition of the returned product, packaging, missing components, or other factors affecting resale value, the restocking fee may be increased up to a maximum of 50% of the product price. Customer-error returns may also be subject to return shipping costs.
Restocking fees do not apply when we verify that the wrong item was shipped by us or that the product arrived damaged or defective through no fault of the customer. Please contact 4Falcons before returning any item so we can provide return authorization and instructions.
Orders are processed and shipped as quickly as possible. Delivery dates are estimates and may be affected by carrier delays, weather, holidays, incorrect addresses, or other circumstances outside our control. Tracking information will be provided when available.
Please verify vehicle, RV, marine, or equipment compatibility before placing your order. Installed, used, modified, damaged, incomplete, or otherwise non-resalable products may receive a reduced refund or may not be eligible for return.
