ID
1001822
$ 243.67
1-2 weeks delivery time
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The Blue Sea 7615 ATD Automatic Timer Disconnect is a 12V DC multi-function battery management relay rated 120A continuous and 210A (5 min) intermittent. It can operate as Timer Disconnect, Low Voltage Disconnect, Automatic Charging Relay, or signal-controlled solenoid. It supports selectable disconnect delays from 5 seconds to 4 hours, low-voltage thresholds from 11.0–12.0V, and features 3/8"-16 (M10) tinned copper studs, IP67 ignition-protected housing, and support for cable sizes up to 1/0 AWG. Weight: 1.25 lb.
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Blue Sea 7615 – ATD Automatic Timer Disconnect 12V DC 120A, Timer / LVD / ACR / Solenoid
The Blue Sea 7615 ATD Automatic Timer Disconnect is a multi-function battery management device for 12V DC systems. It can be configured to operate as a Timer Disconnect, Low Voltage Disconnect, Automatic Charging Relay, or signal-controlled solenoid, allowing flexible battery protection and load control.
The unit is designed to connect battery power when a 12V control signal is present and disconnect loads based on preset timer values or battery voltage thresholds. It is ignition protected and IP67 rated, suitable for marine and harsh environment installations.
Operating Modes
- Timer Disconnect – 12V signal connects loads; when removed, timer disconnects after preset delay
- Low Voltage Disconnect – automatically disconnects loads at low battery voltage
- Automatic Charging Relay – combines batteries when charging and isolates when discharging (single-side sensing)
- Solenoid Mode – 12V signal directly opens/closes relay with no delay
Key Features
- Configurable multi-function battery disconnect and combine relay
- Timer ranges from seconds to hours
- Low voltage disconnect thresholds selectable
- Single-side voltage sensing (start battery)
- Suitable for AGM or larger auxiliary batteries
- Ignition protected and IP67 rated
Electrical Ratings
Nominal Voltage 12V DC Continuous Rating 120A Intermittent Rating 210A (5 min) Operating Current 175 mA (closed) / 4 mA (open) Input Voltage Range 9.5–16V
Voltage & Control Thresholds
Charge Sense Connect 13.0V (3 sec) Charge Sense Disconnect 12.75V (10 sec) Low Voltage Disconnect 11.0V / 11.5V / 12.0V (10 sec) Overvoltage Lockout 16.0V (5 sec)
Timer Disconnect Settings
- 5 seconds
- 15 minutes
- 30 minutes
- 1 hour
- 1.5 hours
- 2 hours
- 4 hours
Connections
Terminal Stud Size 3/8"-16 (M10) Stud Material Tinned Copper Cable Size to Meet Ratings 1 AWG (50 mm²) Maximum Cable Size 1/0 AWG (50 mm²) Terminal Torque 140 in-lb (15.82 Nm) Terminal Ring Clearance 1.12 in (28.45 mm)
Optional Accessories
- 8033 – LED 12/24V DC Amber
- 8171 – LED 12/24V DC Red
- 8172 – LED 12/24V DC Green
Certifications
- CE Marked
- Ignition Protected
- IP67
- ISO 8846
- SAE J1171
Physical Data
- Weight: 1.25 lb (0.57 kg)
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