Description
Newmar ERC-12-15 Emergency Relay | Boat Supply Store
Maintaining critical communication system operation during unexpected DC power interruptions is paramount for vessel safety and coordination. The Newmar ERC-12-15 Emergency Relay automatically switches to a standby battery source when primary DC voltage drops below operational thresholds, utilizing a fast-acting S.P.D.T. relay rated for 10 amps continuous and 15 amps intermittent duty. Additionally, this unit serves as a maintenance trickle charger, maintaining a 0.1 amp float charge to preserve battery health when primary power is stable, and measures a compact 5-1/8" x 2-7/8" x 2-3/8".
Key Features
- Automatic switching to standby battery upon loss of DC voltage
- Fast-acting S.P.D.T. relay for rapid power transfer
- Dual-function acts as a trickle battery charger during normal operation
- Maintains battery float voltage at 0.7 volts lower than the power supply
- Isolated inputs and outputs from mounting bracket for safety
- Versatile mounting in various orientations
- Compact dimensions of 5-1/8" x 2-7/8" x 2-3/8" for easy integration
- Reliable 10 amp continuous / 15 amp intermittent relay rating
Specifications
| Product Specifications | |
|---|---|
| 12VDC input range | 10.0-14.5 VDC |
| Relay rating | 10 amp continuous / 15 amp intermittent |
| Typical float trickle charge | 0.1 amp |
| Dimensions | 5-1/8" x 2-7/8" x 2-3/8" |
| Weight | 0.5 lbs |
Who This Is For
Marine vessel owners and operators who require uninterrupted power for critical communications equipment during temporary AC power loss or power supply failure. This device ensures operational continuity for vital systems when primary power sources are compromised.
How It Compares
| Feature | Newmar ERC-12-15 Emergency Relay | Blue Sea Systems 7700 Automatic Charging Relay |
|---|---|---|
| Primary Function | Emergency backup power for communication equipment and trickle charging | Automatic battery charging and isolation, Battery combining and isolation |
| Continuous Amperage Rating | 10 amps | 120A, 120A |
| Intermittent Amperage Rating | 15 amps | 140A, 220A |
| Integrated Trickle Charger | Yes (0.1 amps typical) | No, No |
| Voltage Input Range | 10.0-14.5 VDC | 12/24 VDC, 12/24 VDC |
Common Concerns Answered
Will the trickle charge rate fully recharge a deeply discharged battery?
The 0.1 amp typical float trickle charge is designed for battery maintenance, not rapid recharging. For significantly discharged batteries after prolonged power outages, a supplemental, higher-amperage charger may be necessary to restore full capacity efficiently.
What are the wire gauge considerations for optimal performance?
Users must select appropriate wire gauges based on the total wire run length to minimize voltage drop and ensure the ERC-12-15 operates within its specified parameters. Referencing standard marine electrical charts for voltage drop calculations is recommended.
Is this unit suitable for rapid battery recovery after a deep discharge?
The primary function of the ERC-12-15 is emergency power switching and battery float charging. Its 0.1 amp trickle charge rate is insufficient for rapid recovery of a deeply discharged battery; a dedicated high-output charger is required for such scenarios.
Frequently Asked Questions
What is the primary function of the Newmar ERC-12-15 Emergency Relay?
The primary function is to provide automatic backup power to essential communication devices and act as a maintenance trickle charger for the battery.
How does the ERC-12-15 provide backup power?
It automatically switches to a standby battery source when the primary DC voltage supply is lost or drops below a usable level.
Can the ERC-12-15 also act as a battery charger?
Yes, it functions as a trickle battery charger, maintaining a float voltage approximately 0.7 volts lower than the power supply voltage when the primary power is operating normally.
What is the trickle charge rate of the ERC-12-15?
The typical trickle charge rate is 0.1 amps.
What is the input voltage range for the ERC-12-15?
The input voltage range is 10.0 to 14.5 VDC.
