Wieland SNO 1012K, Translation Of The Original Instructions

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Doc. # BA000791 – 12/2011 (Rev. A) SNO 1012K EN 8
Certifications cULus, BG, CCC
Terminal and connection data Screw terminals
(1 terminal point per contact) Spring-loaded terminals
(2 terminal points per contact)
Single-core or finely stranded 1× 0.14–2.5 mm²
2× 0.14–0.75 mm² 1× 0.2–1.5 mm²
Finely stranded with wire-end ferrule 1× 0.25–2.5 mm²
2× 0.25–0.5 mm² 1× 0.25–1.5 mm² (trapezoid
crimping)
AWG conductor size (only use Cu wires) 26–14 24–16
Maximum tightening torque 0.5–0.6 Nm (5–7 lbf-in)
Stripping length 7 mm 8 mm
8 Dimensions
SNO 1012K-A (screw terminal) SNO 1012K-C (spring-loaded terminal)
9 Load limit curve and derating
Load limit curve, ohmic load Derating
Vo
ltage
, V DC
Curre
nt sum o
f sq
uare
s
Σ
I
2
, A
2
Example:
Permanent current via
contact 13-14: 2 A,
permanent current via
contact 23-24: 1 A:
Σ
I
2
= (2 A)
2
+ (1 A)
2
= 5 A
2
⇒
POU can be used in
entire temperature
range, as
Σ
I
2
< 9 A
2
.
Current, A Ambient operating temperature, °C
10 Installation
Assembly Disassembly
1. Attach the device to the
DIN rail.
2. Snap the device onto the
DIN rail by applying slight
pressure in the direction of
the arrow.
3. Press the device down in
the direction of the arrow.
4. While it is pressed down,
detach the device from the
latching (in the direction
indicated by the arrow) and
remove it from the DIN rail.