Name: Omron WLCAL4-N Adjustable Rod Limit Switch - INOSAKI
SKU: Omron-WLCAL4-N
Price: 71.54 USD
Availability: InStock

Technical Overview

The OMRON WLCAL4-N is an industrial-grade, two-circuit double-break limit switch featuring a stainless steel adjustable rod lever (350 to 380 mm length). Built with standard-feature gold-clad crossbar contacts, it ensures high reliability for both standard loads and microloads. The housing offers a robust IP67 structure using O-rings and cover seals to provide heavy-duty dust and waterproof performance. Approved globally by UL, CSA, TUV, EN/IEC, and CCC, it is ideal for precision position control and machinery export requirements.

Key Features

Two-circuit double-break contact configuration (SPST-NO + SPST-NC) for enhanced safety.
Stainless steel adjustable rod lever actuator (R350mm to 380mm).
IP67-rated enclosure utilizing O-rings and cover seals for waterproofing and dust-tight protection.
Gold-clad crossbar contacts designed for high reliability on both standard circuits and microloads.
Wide array of global safety approvals including UL, cUL, CSA, EN/IEC, and CCC.
Operating temperature range of -10°C to +80°C with an expected mechanical life of 15,000,000 cycles.

Technical Specification Matrix

Parameter	Value
Contact Type	SPST-NO + SPST-NC
Current Rating	10A (AC) / 6A (DC at 30V)
Voltage Rating (AC)	125V / 250V
Voltage Rating (DC)	30V / 125V / 250V
Ingress Protection	IP67
Actuator Style	Adjustable Rod Lever (350-380mm)
Operating Force (OF)	0.98 N (100 gf)
Release Force (RF)	0.15 N (15 gf)
Pretravel (PT)	15° ± 5°
Overtravel (OT)	70° min.
Movement Differential	12° max.
Conduit Size	G1/2
Operating Temperature	-10°C to +80°C
Mechanical Life	15,000,000 Cycles

Industrial Applications

1. Bulk Material Handling Hopper Over-fill Detection

Utilizes the long, adjustable 350-380mm stainless steel rod to detect when bulk raw materials reach a critical level inside a hopper or on a moving conveyor. When the material pushes the rod by 15 degrees, it breaks the circuit to halt the feeder system.

Problem Solved

Prevents mechanical jamming, material spillage, and equipment overload by reliably stopping the feed system via fail-safe double-break contacts before hopper capacity is exceeded.

Bulk HandlingFail-safe SwitchingAdjustable Rod15° PretravelIP67

2. Heavy Industrial Bay Gate Position Sensing

Mounted on large sliding or rolling warehouse bay doors to confirm full closure or opening. The long adjustable rod allows the switch body to be mounted safely out of the direct path of the heavy door while still providing reliable actuation.

Problem Solved

Solves clearance and mounting constraints for heavy structural doors, while the IP67 rating prevents moisture and dust ingress in semi-outdoor industrial loading environments.

Gate SensingSPST-NO + SPST-NCIP67Overtravel (70°)Harsh Environment

3. Web Tension Monitoring on Packaging Lines

Acts as a low-force limit switch on a dancer arm assembly handling delicate paper or film rolls. The 0.98 N operating force and gold-clad crossbar contacts ensure the switch activates gently and reliably sends low-current signals to a PLC.

Problem Solved

Prevents tearing or stretching of delicate webs by stopping the spindle motor precisely when slack or tension limits exceed the 15-degree threshold without placing high physical load on the material.

Web HandlingLow Operating Force (0.98 N)Gold-clad ContactsMicroloadPackaging Machinery