KZH2-YS

KEY FEATURES

  • "Two-hand" safety function in with two push buttons
  • Inputs for two switches with double contacts (1 NO and 1 NC for each)
  • Security with redundancy and feedback circuit
  • Monitoring of external contactors with feedback circuit Y1 - Y2
  • 3 "NO" security contacts & 1 "NC" monitoring contact (KZH3-YS version)
  • 2 "NO" security contacts (KZH2-YS version)
  • Performance Level (PL) e, safety category 4 to EN ISO 13849-1
  • SIL Claimed Level (SIL CL) 3 to IEC/EN 62061
  • Safety Level Type III-C according to EN 574
TerminalsVoltagesSupply frequency range (Hz)OutputsCode
Screws24 V⎓No2 NO85102621

Specifications


Functions Protection of people with two-hand pushbuttons
Return loop Y1 - Y2
Failure detection Overvoltage and short circuit protection
Display of output state by LED Power supply : PWR Output : OUT1 (relay K1) Output : OUT2 (relay K2)
Supply voltage 85 102 621 / 85 102 631 : 24 V⎓ 85 102 632 : 24 V∿
Supply frequency range (Hz) 50 / 60 (for AC version)
Operating range ± 10 % U
Consumption 2,3 W (⎓) 4 VA (∿)
Initialization time 1 s
Maximum reset time 30 ms
Maximum response time on emergency stop 25 ms
Type Forcibly guided relays (positively driven)
Number of safety circuits 2 NO (KZH2-YS) 3 NO (KZH3-YS)
Number of data circuits 1 NC (KZH3-YS)
Nominal output voltage 250 V∿ max.
Max. thermal current I for each contact 5 A
Maximum power rating According to AC15 (NO contacts)  : 3 A / 230 V∿ According to AC15 (NC contacts)  : 2 A / 230 V∿ Accordinf to DC13 (NO contacts)  : 4 A / 24 V⎓ ; 0,5 A / 110 V⎓ According to DC13 (NF contacts)  : 4 A / 24 V⎓
Electrical endurance For 5 A, 230 V∿, cos φ = 1 : > 1,5 x 105 switching cycles For 8 A, 24 V⎓, according to DC 13 (NO contacts)  : > 25 x 103 switching cycles (ON : 0,4 s ; OFF : 9,6 s)
Mechanical life 20 x 106 switching cycles
Maximum rate 1800 switching cycles / h
Protection against short circuits Max. fuse rating : 10 A gL Line circuit breaker : B 6 A

Operating temperature (o C) -15 →+55
Storage temperature (0C) -25 →+85
Altitude < 2000 m
Climate resistance according to IEC/EN 60068-1 15 / 055 / 04

Vibration resistance according to IEC/EN 60068-2-6 Amplitude : 0,35 mm Frequency : 10 →55 Hz

Immunity to electrostatic discharges acc. IEC/EN 61000-4-2 8 kV (air)
Immunity to radiated, radio-frequency, electromagnetic field acc. IEC/EN 61000-4-3 10 V / m
Immunity to rapid transient bursts acc. to IEC/EN 61000-4-4 2 kV
Immunity to shock waves according to IEC/EN 61000-4-5 Between wires for power supply : 1 kV Between wires and ground : 2 kV
Immunity to radio frequency in common mode acc. to IEC/EN 61000-4-6 10 V
Interference suppression according to IEC/EN 55011 Limit value class B

Material : self-extinguishing (UL94VO) Thermoplastic with V0 extinction behaviour
Protection (IEC/EN 60529) - Casing IP40
Protection (IEC/EN 60529) - Term. block IP20
Mounting DIN-rail
Weight (g) 220

Approvals CE, TÜV
Environmental directive 2002/95/CE RoHS
Environmental regulation 1907/2006 Reach
Security data according to EN ISO 13849-1 Performance Level (PL)  : e Category : 4
SIL Claimed Level (SIL CL) to IEC/EN 62061 3
Safety Integrity Level (SIL) according to CEI/EN 61508 3
Safety category to EN 954-1 4
Safety Level according to EN 574 Type III-C

Technical sketches

Safety related data

Safety related data

Screw terminals

Screw terminals

Front face drawing KZH2-YS

Front face drawing KZH2-YS

Contacts

Contacts
A1 (+)  : + / L A2 : - / N Y1, Y2 : Feedback circuit input Y11, Y12, Y21, Y22 : Control inputs (push buttons) 13, 14, 23, 24, (33, 34) * : Safety circtui outputs (forcibly guided NO contacts) (41, 42) * : Monitoring output (forcibly guided NC contact) * : only for KZH3-YS version

Function diagram

Function diagram
PH 85102031

Two-hand safety relay

Two-hand safety relay

Two-hand control with contact reinforcement via external positively-driven contactors

Two-hand control with contact reinforcement via external positively-driven contactors
When switching inductive loads, spark absorbers are recommended

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