Omron TZ-1G TZ-1GV TZ-1GV2 TZ-1GV22 Motion Switch
The Omron TZ-1G series comprises motion control switches designed for PLC and positioning applications. The family includes models TZ-1G (standard), TZ-1GV (vertical roller lever), TZ-1GV2 (vertical roller lever with extended arm), and TZ-1GV22 (double roller version). These switches are used as precision limit switches or camless press control devices, providing accurate position feedback in automated machinery.
Model Differences
TZ-1G: Basic model with a short straight lever (21mm length), suitable for general actuation.
TZ-1GV: Vertical roller lever (roller diameter 12.7mm) for tangential actuation, reducing side load.
TZ-1GV2: Vertical roller lever with longer arm (32mm) for higher overtravel.
TZ-1GV22: Double roller lever (two rollers on opposite sides) for bidirectional actuation.
Electrical Specifications
Each switch contains a snap-action SPDT (single pole double throw) microswitch with a rating of 10A at 250V AC (resistive) and 5A at 24V DC (inductive). Contact material: silver alloy. Mechanical life: 10 million operations minimum. Electrical life: 500,000 operations at rated load. The switch is sealed to IP65 (dust-tight and water-resistant), suitable for washdown environments.
Operating Characteristics
Pretravel (PT): TZ-1G = 0.7 mm max; TZ-1GV = 1.2 mm; TZ-1GV2 = 1.8 mm; TZ-1GV22 = 1.5 mm (per side). Overtravel (OT): 1.5 mm min. Differential travel (DT): 0.2 mm max. Operating force: 200 gf typical (TZ-1G), 150 gf (TZ-1GV), 100 gf (TZ-1GV2), 180 gf (TZ-1GV22). The switch is suitable for slow or fast actuation (minimum speed 0.1 mm/s).
Mechanical Dimensions
Body dimensions (all models): 30 mm width x 48 mm height x 28 mm depth (excluding actuator). Weight: 55–65 g depending on model. Mounting: Two M4 screws on 25 mm centers or via a 3.5 mm slot. The housing is made of glass-filled polyamide (UL94 V-0) with a stainless steel actuator. Terminal screws: M3.5, accept wire up to 1.5 mm².
Environmental Ratings
Operating temperature: -25°C to +80°C; storage: -40°C to +85°C. Humidity: 30% to 90% non-condensing. Vibration resistance: 10 g (10–55 Hz). The switch meets IEC 60947-5-1 and carries CE, UL, and CSA approvals. The IP65 rating requires proper cable gland termination.
Application in PLC Systems
These switches are commonly interfaced to PLC digital input modules (24V DC or 120V AC). They provide position feedback for:
Camless press slide position (dead stop control).
Conveyor indexing (parts presence).
Automated assembly machine end-of-stroke detection.
Robotic gripper open/close confirmation.
Installation Notes
When installing, ensure the actuator is aligned to avoid side forces exceeding 5 N. Use flexible conduit for the cable to prevent strain. For high-speed applications (over 500 cycles/min), derate the current to 50% of nominal. The switch is not suitable for use in explosive atmospheres without an enclosure.
Ordering and Documentation
Order codes: TZ-1G, TZ-1GV, TZ-1GV2, TZ-1GV22. Each switch is supplied with two M4 mounting screws and a terminal cover. Manual: Omron TZ Series Limit Switch Data Sheet (Cat. No. L023-E1-01). RoHS compliant.
