CHINT YBLX-K1/511 Limit Switch

CHINT YBLX-K1/511 (often miswritten as YBLX-K1511) is a universal self-resetting limit switch belonging to the YBLX-K1 series. It is widely used for overtravel protection and position control in industrial automation and machine tools.

Core Parameters & Structure

Item	Specification
Full Model	YBLX‑K1/511 (JLXK1/511)
Actuator Type	Universal type (code “5”)
Contact Configuration	1 NO + 1 NC
Rated Voltage	AC 380 V, DC 220 V
Rated Current	AC‑15 0.8 A, DC‑13 0.15 A
Protection Degree	IP52
Standards	GB/T14048.5, IEC60947‑5‑1
Wiring Capacity	1×(0.5–1) mm² cable, stripping length 7–9 mm
Fastening Screw	M3.5, tightening torque 0.8 N·m
Operating Frequency	Mechanical: 1200 operations/hour; Electrical: 600 operations/hour
Service Life	Mechanical ≥ 1,000,000 cycles; Electrical ≥ 100,000 cycles

Model Meaning Explanation

Meaning of each part in YBLX-K1/511:

YBLX: General code for limit switch

K1: Quick-action series

/5: Actuator is universal type (actuated from any direction)

/11: Contact combination 1 NO + 1 NC

Main Features & Advantages
Universal actuation design: Actuator senses in 360° directions, suitable for complex installations
Self-resetting: Automatically returns to original position after actuation, no manual reset needed
Silver-alloy contacts: Excellent conductivity, arc resistance, wear resistance, long service life
IP52 protection: Dust-proof and moisture-proof for industrial environments
Flexible installation: Supports multiple mounting methods for various layouts
Safe and reliable: Complies with international standards, short-circuit withstand up to 1000 A
Applications
Machine tools: Table travel limit, automatic reciprocating control
Automated production lines: Material positioning, lifting mechanism limit protection
Lifting machinery: Limit protection, anti-collision control
Packaging machinery: Positioning, counting control
Textile machinery: Yarn tension control, mechanical limit
Other industrial equipment: Motion control, direction/speed change control
Installation & Wiring Guide

Installation Steps

Select proper mounting position to ensure reliable actuation of the actuator
Secure the switch with M4 screws, tightening torque 0.8–1.2 N·m
Connect wires:

NO contact: “turn on at position” in control circuit

NC contact: “turn off at position” (commonly used for emergency stop)

Check actuation direction and reset for sensitive and reliable operation
Power on and test to confirm normal circuit function

Wiring Notes

Cable stripping length: 7–9 mm; avoid too short or too long exposed conductor

Tighten terminals securely to prevent loose connections

Distinguish AC/DC circuits; do not exceed rated voltage/current

Avoid direct control of high-power loads; use an intermediate relay if needed

Operation & Maintenance
Regularly check actuator flexibility and reset performance
Clean contact area to remove dust and oil, preventing poor contact
Inspect wire connections for looseness caused by vibration
Avoid overtravel and overfrequency operation to protect internal mechanism
Replace the switch promptly if contact burning, sluggish action, etc. occur
Replacement & Selection Reference

Other common models in YBLX-K1 series:

YBLX-K1/111: Single roller lever type, 1 NO + 1 NC

YBLX-K1/211: Double roller lever type, 1 NO + 1 NC

YBLX-K1/311: Plunger type, 1 NO + 1 NC

YBLX-K1/411: Roller plunger type, 1 NO + 1 NC

Purchasing & Warranty Information

Official Order No.: 7101125000000511

CHINT Limit Switch Series List & Cross-Brand Model Cross-Reference

Complete CHINT Limit Switch Series List

Series	Features	Typical Applications	Representative Models
YBLX‑K1 / JLXK1	Quick‑action, multiple actuators, self‑resetting	Machine tools, automation	YBLX‑K1/111, YBLX‑K1/511
YBLX‑ME / 8000	General purpose, compatible with Schneider XCE mounting	General machinery, assembly lines	YBLX‑ME/8108, YBLX‑ME/8101
YBLX‑19	Roller lever type, various lever configurations	Machine tables, lifting mechanisms	YBLX‑19‑111, YBLX‑19‑222
YBLX‑WL	Watertight, IP65	Outdoor equipment, wet environments	YBLX‑WL/CA120, YBLX‑WL/CA220
YBLX‑P1	Plunger type, short stroke, high frequency	Stamping equipment, counters	YBLX‑P1/303, YBLX‑P1/120
YBLX‑10	Heavy‑duty, high current, metal housing	Cranes, metallurgy	YBLX‑10/11, YBLX‑10/21
YBLX‑JW2	Micro, short stroke, high sensitivity	Precision machinery, instruments	YBLX‑JW2/11Z/3, YBLX‑JW2/22Z
YBLX‑33 / 44	Heavy‑duty, high operating force, robust	Port machinery, mining	YBLX‑33/11, YBLX‑44/22
YBLX‑X2	Compact, miniaturized	Small equipment, medical devices	YBLX‑X2/11G, YBLX‑X2/22D
NKX2 / NKX3	Modern design, modular mounting	Smart factories, automation lines	NKX2‑11Z, NKX3‑22Z
YBLXW‑6	Microswitch, small size, high sensitivity	Electronics, home appliances	YBLXW‑6/11DL, YBLXW‑6/22CL
YBLX‑HL	High temperature resistant, ‑25 ~ +120 °C	Metallurgy, drying equipment	YBLX‑HL/11, YBLX‑HL/22
YBLX‑3 / LX3	Metal housing, protected design	Heavy machinery, explosion‑proof areas	YBLX‑3/11H, YBLX‑3/22J

Cross-Brand Model Cross-Reference (Major Brands)

2.1 CHINT vs Schneider (Most Common Replacement)

CHINT Model	Equivalent Schneider	Notes
YBLX‑K1/511	XCE145	Universal actuator, 1 NO + 1 NC, compatible mounting
YBLX‑ME/8108	XCE102	Roller lever, self‑resetting, matching electrical ratings
YBLX‑ME/8101	XCE101	Plunger type, quick action, same mounting holes
YBLX‑K1/111	XCE118	Single roller lever, 1 NO + 1 NC, similar operating force
YBLX‑19‑111	XCE110	Straight lever inner actuation, same mounting space
YBLX‑WL/CA120	XCKD2120P16	Watertight, 2 NO + 2 NC, IP65

2.2 CHINT vs Siemens

CHINT Model	Equivalent Siemens	Notes
YBLX‑K1/511	3SE5 112‑0CH01	Universal, 1 NO + 1 NC, mechanical life ≥ 1M cycles
YBLX‑ME/8108	3SE5 100‑0CH02	Roller lever, self‑resetting, compatible mounting
YBLX‑19‑222	3SE5 122‑0CH01	Forked double roller lever, bidirectional limit
YBLX‑P1/303	3SE5 212‑0CH01	Long plunger, short stroke, high frequency
YBLX‑WL/CA220	3SE5 232‑0CH01	Watertight, 3 NO + 3 NC, outdoor use

2.3 CHINT vs ABB

CHINT Model	Equivalent ABB	Notes
YBLX‑K1/111	LS31K01	Single roller lever, 1 NO + 1 NC, matching ratings
YBLX‑ME/8108	LS31K10	Roller lever, self‑resetting, same mounting position
YBLX‑19‑131	LS31K20	Straight lever groove actuation, consistent precision
YBLX‑P1/120	LS31K30	Short plunger, quick action, similar response

2.4 CHINT vs Omron

CHINT Model	Equivalent Omron	Notes
YBLX‑K1/511	D4V‑8108SZ	Universal, 1 NO + 1 NC, operating force 0.5–1.5 N
YBLX‑ME/8108	D4V‑8166Z	Roller lever, self‑resetting, mechanical life ≥ 1M cycles
YBLX‑WL/CA120	D4V‑8122Z	Watertight, 2 NO + 2 NC, IP65
YBLXW‑6/11DL	D4V‑2120Z	Microswitch, short roller lever, 1 NO + 1 NC

Key Points for Replacement & Selection
Mounting compatibility: Prefer models with identical mounting dimensions (e.g., YBLX-ME ↔ XCE) for direct replacement
Electrical matching:

Rated voltage: AC 380 V / DC 220 V

Rated current: AC-15 0.8 A, DC-13 0.15 A

Contacts: 1 NO + 1 NC (standard), 2 NO + 2 NC (special)

Actuator type matching:

Actuator Type	CHINT Code	International Equivalent
Universal	5	XCE145, 3SE5 112 series
Single roller lever	1	XCE118, 3SE5 100 series
Double roller lever	2	XCE110, 3SE5 122 series
Plunger	3	XCE101, 3SE5 101 series
Roller plunger	4	XCE103, 3SE5 103 series

Protection level selection:

General environment: IP52 (YBLX-K1)

Humid environment: IP65 (YBLX-WL)

Outdoor use: IP67 (custom models)

Selection & Replacement Recommendations
Prefer direct series replacement: YBLX-ME ↔ XCE, YBLX-K1 ↔ 3SE5 are most reliable
Contact count: Ensure NO/NC quantity matches to avoid logic errors
Mechanical parameters: Match operating force, travel, reset speed to prevent misoperation
Special environment adaptation:

Outdoor / wet: YBLX-WL (IP65)

High temperature: YBLX-HL (-25 ~ +120 °C)

Explosion-proof: YBLX-3 (metal housing, certified)