SPECIFICATIONS

Brand Name: NONE

Material: ABS

Model Number: CZ 7310

Origin: Mainland China

CNTD CZ-7310 Limit Switch

CZ-7 Series | Panel-Mount Plunger Type | Water-proof / Oil-proof | Industrial Grade

Key Features

Snap-action SPDT Contacts – 1NO + 1NC snap-action contact form for flexible wiring in position-detection and interlock applications.
Panel-Mount Plunger Actuator – Self-resetting plunger with operating force 6N and release force 1N; operating position 21.8 ± 1.2mm.
Water-proof & Oil-proof Housing – Outer shell covered with intensive (reinforced) plastic, sealed against water and oil ingress.
High Mechanical Strength – Mechanical strength is better than the CMV Series of horizontal limit switch; built for repeated actuation.
IP64 Protection – Degree of protection IP64 per official CNTD datasheet; suitable for dusty or splash-prone shop-floor conditions.
10A / 250V AC-15 Rating – Rated insulation voltage Ui 380V, conventional free air thermal current Ith 10A; DC-13: 0.3A / 220V.
CCC / CE / TUV Certified – CCC: GB/T14048.5; TUV & CE: EN 60947-5-1. Various actuators available within the CZ-7 Series.

Product Overview

The CNTD CZ-7310 is a horizontal-type limit switch from the CZ-7 Series, featuring a panel-mount plunger actuator and snap-action 1NO + 1NC contacts. Its reinforced plastic housing is water-proof and oil-proof, and its mechanical strength is better than the CMV Series of horizontal limit switch. It is widely used in machine tools, conveyors, lifts, automated equipment and household appliances for stroke positioning and overtravel protection.

Key Properties

Parameter	Value	Parameter	Value
Model	CZ-7310	Brand	CNTD
Rated Voltage	250V AC (Ui 380V)	Rated Current	10A (Ith)
IP Rating	IP64	Operating Temperature	-20°C ~ +70°C (no icing)
Contact Configuration	1NO + 1NC Snap-action (SPDT)	Actuator Type	Panel-Mount Plunger
Material	Reinforced Plastic (intensive plastic shell)	Application	Machine Tools, Conveyors, Lifts, Automated Equipment
Origin	Zhejiang, China	Feature	Water-proof & oil-proof construction
Operating Speed	0.05 mm ~ 0.5 m/s	Operating Frequency	Electrical: 20 operations/min
Contact Resistance	25 mΩ max. (initial value)	Insulation Resistance	100 MΩ min. (<500V DC)
Vibration	10 ~ 55 Hz, 1.5mm double amplitude	Ambient Temperature	-20 ~ +70°C (no icing)
Humidity	≤85% RH (general-purpose type)	Electrical Life	500,000+ operations
Certification	CCC, CE, TUV

Detailed Specifications

Parameter	Value / Description
Operating Force (OF)	6N
Release Force (RF)	1N
Pretravel (PT)	Max. 2mm
Overtravel (OT)	Min. 6mm
Movement Differential (MD)	Max. 0.8mm
Operating Position (OP)	21.8 ± 1.2mm
Operating Speed	0.05 mm ~ 0.5 m/s (panel-mount plunger type)
Contact Resistance	Max. 25 mΩ (initial value)
Insulation Resistance	Min. 100 MΩ (at <500V DC)
Minimum Applicable Load	DC 24V 10mA or more
Rated Insulation Voltage (Ui)	380V
Rated Impulse Withstand Voltage (Uimp)	4kV
Conventional Free Air Thermal Current (Ith)	10A
Safety-Certified Ratings	AC-15: 10A / 250V; DC-13: 0.3A / 220V
Dielectric Strength	• Between non-consecutive terminals: 1000V AC, 50/60 Hz, 1 min • Between current-carrying & non-current-carrying parts: 1500V AC, 50/60 Hz, 1 min • Between terminals & ground: 1500V AC, 50/60 Hz, 1 min
Vibration	Malfunction durability: 10 ~ 55 Hz, 1.5mm double amplitude
Shock	Mechanical durability: approx. 1,000 m/s² (~100G); Malfunction durability: approx. 100 m/s² (~10G)
Ambient Temperature	-20 ~ +70°C (no icing)
Humidity	≤85% RH (general-purpose type)
Electrical Life	500,000+ operations (resistive load); 200,000+ operations (AC 240V / 10A resistive load)
Protection Grade	IP64
Certification Specifications	CCC: GB/T14048.5; TUV: EN 60947-5-1; CE: EN 60947-5-1

Note: Values are based on the official CNTD website (cntd.com) CZ-7310 product page and CZ-7 Series datasheet. Please verify against the actual unit and supplied datasheet before installation or listing.

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