slr series - Littelfuse
Protection Relays
Single Function Relays and Controls
SLR SERIES
Solid-State Relay - Non-Isolated
Description
The SLR Series has no isolation between the control switch
input and the solid-state output. Select the SLR for applications
where the control switch is the same voltage source as the
load. Provides the noiseless, reliability and long life of a
solid-state relay, without the cost of isolation circuitry. The
SLR Series offers random switching and is normally used for
inductive loads. When fully insulated female terminals are used
on the connection wires, the system meets the requirements
for touch-proof connections.
Operation
The solid-state output is located between terminals 1 and 2
and can be ordered as either normally open or normally closed,
when voltage is applied and S1 is open. When S1 is closed, the
solid-state output between terminals 1 and 2 closes (or opens).
If S1 is opened, the solid-state output will open (or close).
Reset: Opening S1 resets the output to its original state. Reset
is also accomplished by removing input voltage.
Wiring Diagram
L1
Features & Benefits
N/L2
V = Voltage
S1 = Initiate Switch
L = Load
Note: Normally open output is
shown. Normally closed output
is also available.
FEATURES
BENEFITS
Compact design
measures 2 in.
(50.8mm) square
Perfect for OEM applications where space is limited
Totally solid state
and encapsulated
No moving parts to arc and wear out over time and
encapsulated to protect against shock, vibration,
and humidity
Up to 20A steady, 200A
inrush output rating
Provides direct control of heavy inductive, resistive,
or incandescent loads
Metalized
mounting surface
Facilitates heat transfer in high current applications
Accessories
P1015-13 (AWG 10/12), P1015-64 (AWG 14/16),
P1015-14 (AWG 18/22) Female Quick Connect
These 0.25 in. (6.35 mm) female terminals are
constructed with an insulator barrel to provide
strain relief.
Ordering Information
MODEL
SWITCHING
INPUT
VOLTAGE
OUTPUT
RATING
OUTPUT FORM
SLR1420A
Random
120VAC
20A
Normally open
SLR1610A
Random
230VAC
10A
Normally open
P1015-18 Quick Connect to Screw Adapter
Screw adapter terminal designed for use with
all modules with 0.25 in. (6.35 mm) male quick
connect terminals.
If you don’t find the part you need, call us for a custom product 800-843-8848
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/
www.littelfuse.com/slr
Rev: 1-A-062716
Protection Relays
Single Function Relays and Controls
SLR SERIES
Specifications
Output (Contact)
Type
Non-isolated solid state
Form
SPST, NO or NC
Voltage
24, 120, or 230VAC
Tolerance
±20%
Ratings
Steady State Inrush* Output Device
1A
10A
SCR & Bridge Rectifier
6 A
60A Triac
10A
100A Triac
20A 200ATriac
Minimum Load Current
≅ 50mA
Voltage Drop
(at Rated Current)
≅ 2.0V - 6, 10, & 20A units; ≅ 2.5V - 1A units
Leakage Current (Open State) ≤ 5mA
Initiate Switch Voltage
Same as the output voltage
Power Consumption
≤ 0.5W
Protection
Circuitry
Encapsulated
Dielectric Breakdown
≥ 2000V RMS terminals to mounting surface
Insulation Resistance
≥ 100MΩ
Mechanical
Mounting*
Surface mount with one #10 (M5 x 0.8) screw
DimensionsH 50.8 mm (2.0”); W 50.8 mm (2.0”);
D 38.4 mm (1.51”)
Termination
0.25 in. (6.35 mm) male quick connect terminals
Environmental
Operating/Storage
Temperature -20° to 60°C / -40° to 85°C
Humidity
95% relative, non-condensing
Weight
1A units: ≅ 2.4 oz (68 g);
6, 10, 20A units: ≅ 3.9 oz (111 g)
Function Diagram
V = Voltage
S1 = Initiate Switch
NO = Normally
Open Contact
NC = Normally
Closed Contact
R = Reset
= Undefined
Time
*Must be bolted to a metal surface using the included heat sink compound. The maximum
mounting surface temperature is 90°C. Inrush: Non-repetitive for 16ms.
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/
www.littelfuse.com/slr
Rev: 1-A-062716
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