Blue Sea Systems m-Series Selector Battery Switch

Features

• Switches an isolated battery bank to all loads or combines battery banks to all loads.
• Tin-plated copper studs for maximum conductivity and corrosion resistance.
• Studs accept 3/8" (M10) ring terminals.
• One-piece terminal stud design never loosens over time.
• Isolating cover with three snap-off side pieces protects rear contacts and allows wire access in any direction.

Specifications

• Cranking Rating: 30 sec. - 900A DC
• Intermittent Rating: 5 min. (UL 1107) - 500A DC
• Continuous Rating: 300A DC
• Terminal Stud, Tin-Plated Copper: 3/8"-16 (M10)
• Torque: 120 in-lb (13.56 N·m)
• Cable Size to Meet Ratings*: 4/0 AWG (120 mm²)
• Maximum Voltage Rating: 32 Volts DC
• Ignition Protected
• CE marked

Agency Specifications

• Meets all American Boat and Yacht Council (ABYC) requirements for battery switches.
• UL Listed - UL 1107 for electric power switches.
• Meets UL 1500 and SAE J1171 external ignition protection requirements.

Guarantee

Any Blue Sea Systems product with which a customer is not satisfied may be returned for a refund or replacement at any time.

* Reducing cable sizes will reduce current ratings.

Contact Information

Blue Sea Systems, Inc.
4600 Ryzex Way
Bellingham, WA 98226 USA
p 360.738.8230
bluesea.com

Caution

• Disconnect the positive battery terminal before installing.
• Consult a marine electrical professional for proper wiring application.
• Ensure that cables are correctly connected by consulting a marine electrician.

Installation

• Refer to the latest edition of NFPA 302 and/or ABYC E11 Standard for installation information.
• Attach one 4/0 AWG cable per terminal to meet ratings.
• Battery cable terminals must be attached under nut and lock washer. Torque to 120 in-lb (13.56 N·m).

Operation

• Turn all appliances off before turning the battery switch to OFF.
• Do not switch to OFF while the engine is running.

Switch Mounting Options

The m-Series Selector Battery Switch offers three mounting options:

• A: Surface mounting
• B: Front panel mounting
• C: Rear panel mounting

Dimensions for Mounting:

• Option B (Front Panel): Requires a cutout diameter of 2-5/8" (67mm).
• Option C (Rear Panel): Requires a cutout diameter of 2-5/16" (59mm).

The switch faceplate dimensions are 2.175" x 2.175" (55.25mm x 55.25mm), and it is secured with #10 screws.

m-Series Battery Switch Dimensions Diagram

The diagram illustrates the internal connections of the battery switch. It shows terminals for 'Loads' and 'Engine', with connections to a battery labeled '+' and '-' for both the engine and the loads.

The switch has four positions, indicated by numbered terminals and an 'OUTPUT' label.