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Operating instruction (translation from original)
SN0 1012
Basic device for Emergency Stop applications
6 Function chart
Single-channel Emergency Stop
Manual start
t
– response time (manual start), t
– response time (automatic start), t
A1
A2
7 Technical data
Function
Function indicator
Power circuit
Rated voltage U
A1, A2
N
Operating voltage range U
: 0.85–1.1 × UN
B
Rated frequency
Rated power
Electrical isolation between supply and con-
trol circuits
Control circuit
Rated output voltage
Input current
Max. peak current
Response time (manual start t
/autom. start
A1
t
)
A2
Recovery time t
W
Release time t
R
Minimum activation time t
(manual start)
M
Max. line resistance per channel
Output circuit
Switching function
Contact type
Contact material
Rated switching voltage
Max. thermal permanent current I
*
TH
Max. current sum of squares Σ I²
T
U
T
U
Utilization category
Conditional short circuit current
Short circuit protection
Mechanical service life
General data
Air gaps and creepage paths between the cir-
cuits
Rated insulation voltage
Case/terminals protection class
Degree of soiling
Ambient operating temperature
Storage temperature
Weight
Standards
Certifications
* When dimensioning the contact current, observe the oversizing criterion according to
EN 13849-2: Chap. D.2 Proven safety principles.
Terminal and connection data
Screw terminals
(1 terminal point per con-
tact)
Single-core or finely stranded
1× 0.14–2.5 mm²
2× 0.14–0.75 mm²
Finely stranded with wire-end
1× 0.25–2.5 mm²
ferrule
2× 0.25–0.5 mm²
AWG conductor size
26–14
(only use Cu wires)
Maximum tightening torque
0.5–0.6 Nm (5–7 lbf-in)
Stripping length
7 mm
UKCA – for UK: Wieland Electric Ltd | Ash House, Tanshire Park | Shackleford Road | Elstead, Godalming GU8 6LB
Doc. # BA000791 – 03/2022 (Rev. B)
Automatic start
– release time, t
R
Emergency Stop relay
2 LEDs, green
24 V AC/DC
20.4 to 26.4 V AC/DC
50–60 Hz
2 VA/1 W
No
Y1 (OUT)
Y2 (IN)
24 V DC
50 mA
70 mA
< 20 ms/< 70 ms
> 200 ms
< 70 ms
30 ms
2.5 Ω + (1.176 × U
/ U
- 1) × 50 Ω
B
N
Enabling current paths 13/14, 23/24
Normally open contact
Positively driven
AG alloy
240 V AC, 50 V DC
6 A (observe derating)
≤ 40°C
72 A²
= 55°C
9 A² (see Derating)
AC-15
U
230 V, I
3 A
e
e
DC-13
U
24 V, I
3 A
e
e
400 A
6 A class gG fuse, fuse integral < 100 A²s
10
7
switching cycles
Basic insulation acc. EN 60664-1
300 V AC
IP40/IP20 (acc. to EN 60529)
Outside: 3; inside: 2
–25 to +55°C
–25 to +75°C
120 g
EN ISO 13849-1, EN 62061
cULus, BG, CCC
Spring-loaded terminals
(2 terminal points per con-
tact)
1× 0.2–1.5 mm²
1× 0.25–1.5 mm²
(trapezoid crimping)
24–16
8 mm
Wieland Electric GmbH
Brennerstraße 10 – 14
96052 Bamberg
Phone +49 951 9324-0
Fax
+49 951 9324-198
info@wieland-electric.com
www.wieland-electric.com
Two-channel Emergency Stop
Manual start
A1 supply voltage
A2 supply voltage
Y2 reset
K1, K2, and LED K1, K2
13/14, 23/24
– minimum activation time, t
– recovery time
M
W
Load limit curve and derating
Load limit curve, ohmic load
Derating
Ambient operating temperature, °C
8 Dimensions
SNO 1012K-A (screw terminal)
SNO 1012K-C (spring-loaded terminal)
SN0 1012
Current, A
Example:
Permanent current via contact 13-14: 2 A,
permanent current via contact 23-24: 1 A:
Σ I² = (2 A)² + (1 A)² = 5 A²
⇒ Module can be used in entire temperature range,
as Σ I² < 9 A².
Automatic start
4 EN
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