02/11/2015
www.crouzet.com
Two-hand safety relays KZH2-YS Part number 85102621
"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
Part numbers
Type
85102621
KZH2-YS
Terminals
Screws
Voltages
24 VDC
Supply frequency range (Hz)
No
Outputs
2 NO
Specifications
Operating characteristics
Functions
Return loop
Failure detection
Display of output state by LED
Protection of people with two-hand pushbuttons
Y1 - Y2
Overvoltage and short circuit protection
Power supply : PWR
Output : OUT1 (relay K1)
Output : OUT2 (relay K2)
Supply
Supply voltage
Supply frequency range (Hz)
Operating range
Consumption
Initialization time
85 102 621 / 85 102 631 : 24 VDC
85 102 632 : 24 VAC
50 / 60 (for AC version)
± 10 % U
2,3 W (DC)
4 VA (AC)
1s
Precision
Maximum reset time
Maximum response time on emergency stop
30 ms
25 ms
Output specification
Type
Number of safety circuits
Number of data circuits
Nominal output voltage
Max. thermal current I for each contact
Maximum power rating
Forcibly guided relays (positively driven)
2 NO (KZH2-YS)
3 NO (KZH3-YS)
1 NC (KZH3-YS)
250 VAC max.
5A
According to AC15 (NO contacts) : 3 A / 230 VAC
According to AC15 (NC contacts) : 2 A / 230 VAC
Accordinf to DC13 (NO contacts) : 4 A / 24 VDC ; 0,5 A / 110 VDC
According to DC13 (NF contacts) : 4 A / 24 VDC
For 5 A, 230 VAC, cos
φ =
1 : > 1,5 x 10
5
switching cycles
For 8 A, 24 VDC, according to DC 13 (NO contacts) : > 25 x 10
3
switching cycles (ON : 0,4 s ; OFF : 9,6 s)
Mechanical life
Maximum rate
Protection against short circuits
20 x 10
6
switching cycles
1800 switching cycles / h
Max. fuse rating : 10 A gL
Line circuit breaker : B 6 A
Electrical endurance
Climatic environment
Operating temperature (
o
C)
Storage temperature (
0
C)
Altitude
Climate resistance according to IEC/EN 60068-1
-15 →+55
-25 →+85
< 2000 m
15 / 055 / 04
Mechanical environment
Vibration resistance according to IEC/EN 60068-2-6
Amplitude : 0,35 mm
Frequency : 10 →55 Hz
Electromagnetic environment
Immunity to electrostatic discharges acc. IEC/EN 61000-4-
8 kV (air)
2
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
02/11/2015
Immunity to radiated, radio-frequency, electromagnetic
10 V / m
field acc. IEC/EN 61000-4-3
Immunity to rapid transient bursts acc. to IEC/EN 61000-4-
2 kV
4
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
10 V
IEC/EN 61000-4-6
Interference suppression according to IEC/EN 55011
Limit value class B
www.crouzet.com
Housing
Material : self-extinguishing (UL94VO)
Protection (IEC/EN 60529) - Casing
Protection (IEC/EN 60529) - Term. block
Mounting
Weight (g)
Thermoplastic with V0 extinction behaviour
IP40
IP20
DIN-rail
220
Safety standards
Approvals
Environmental directive 2002/95/CE
Environmental regulation 1907/2006
Security data according to EN ISO 13849-1
SIL Claimed Level (SIL CL) to IEC/EN 62061
Safety Integrity Level (SIL) according to CEI/EN 61508
Safety category to EN 954-1
Safety Level according to EN 574
CE, TÜV
RoHS
Reach
Performance Level (PL) : e
Category : 4
3
3
4
Type III-C
Principles
Dimensions (mm)
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
02/11/2015
www.crouzet.com
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
Applications
Two-hand safety relay
Applications
Two-hand control with contact reinforcement via external positively-driven contactors
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
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