COLE HERSEE 48408

Description

Technical Specifications:

• Model: 48408

• Manufacturer: Cole Hersee Company (now Littelfuse Group)

• Rated Voltage: 12V DC

• Rated Current: 40A

• Contact Configuration: SPDT (Single Pole Double Throw)

• Coil Type: DC

• Contact Material: Silver

• Housing Material: Nylon

• Protection Rating: IP67

• Dimensions: 44.5 x 25.4 x 25.4 mm

• Weight: 56 g

• Duty Cycle: Continuous duty (designed for长时间 continuous energization without overheating)

Structural Features:

• Silver alloy contacts provide excellent electrical conductivity

• Large-sized coil for robust electromagnetic actuation

• Zinc-plated steel housing for rust and corrosion resistance

• IP67 waterproof and dustproof protection

• 4-pole normally open (4-POLE NO) contact configuration

Working Principle:
The 48408 operates as an electromagnetic switch where a small control current energizes the coil, creating a magnetic field that actuates the contacts. The silver alloy contacts close to complete the high-current circuit between the battery and the load (motor, hydraulic pump, etc.). The continuous-duty design allows the contacts to remain closed for extended periods without overheating.

Advantages and Highlights:

• Exceptional current-carrying capacity suitable for heavy-duty applications

• Continuous-duty rating enables长时间 energization without overheating

• Silver alloy contacts ensure superior conductivity and longevity

• Zinc-plated steel housing provides excellent corrosion resistance

• IP67 protection against moisture, dust, and vibration

• SPDT contact configuration offers flexible switching options

• Cost-effective solution for high-current switching applications

Applicable Industries:
Automotive (starting circuits, lighting control), marine applications, golf carts, industrial forklifts, electric sweepers, large commercial mowers, pump control, winch control, speaker control, heating control, and heavy mobile equipment.

Model Series:
Cole Hersee Heavy-Duty Relay/Contactor Series

Installation Requirements:

• 12V DC power supply

• Secure mounting in vibration-resistant locations

• Proper wire gauge for high-current carrying capacity (40A rating)

• Adequate clearance for heat dissipation during continuous operation

• Protection from direct water immersion despite IP67 rating

Usage Precautions:

• Ensure supply voltage does not exceed 12V DC rating

• Do not exceed 40A continuous current rating

• Verify proper contact configuration (SPDT) before installation

• Regular inspection of contacts for wear or pitting

• Use appropriate fuse or circuit breaker for overcurrent protection

• Ensure secure electrical connections to prevent arcing

• Mount in location with adequate ventilation for heat dissipation during continuous duty operation