248-2841 (2482841) — A standard compact relay (24V, 35A, 5-pin, 1 NO/1 NC configuration) designed for use in medium-load circuits—such as fans, windshield wipers, lights, and small solenoid valves—on equipment including excavators, loaders, and motor graders. Image

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I. Core Specifications

Part Number: 248-2841 / 2482841

Type: Miniature Electromagnetic Relay

Coil Voltage: 24V DC

Contact Capacity: 35A 24VDC

Pins: 5-Pin Blade Terminals (1 NO, 1 NC)

Pin Configuration:

85, 86: Coil

30: Common Terminal

87: Normally Open (NO)

87a: Normally Closed (NC)

Replacement Model: Song Chuan 301-1C-C-R1-U02-24VDC

II. Primary Applications

Cooling Fan Control

Wiper Motor

Headlights / Taillights / Warning Lights

A/C Compressor Clutch

Various Low-Power Solenoid Valves (Excluding Main Pump / Main Hydraulics)

III. Compatible Models (Common)

Excavators: 320D / 323D / 324D / 325D / 329D / 330D / 336D

Articulated Trucks: 725C, 730C, 735B, 740B

Motor Graders: 120M, 12M, 140M

Wheel Loaders: 924K, 930K, 938H, 980K

Engines: C4.4, C6.4, C6.6, C7, C9, C13, C15, C18

VI. Common Faults and Diagnostics

Fault Symptoms: Fan fails to rotate, lights fail to illuminate, wipers fail to move, A/C system fails to operate.

Diagnostic Methods:

Coil Resistance: Approx. 80–120Ω at 24V

Power-On Test: Audible click (engagement sound) is clear; continuity established between pins 87 and 30.

Inspection: Check the relay socket for signs of burning/scorching or loose connections.