NATIONAL CONTROLS R2025 User Manual
5-2
POINT A
1.10
1.75
1.875
.19
.53
1.00
1.70
.30
2.25
(57.1)
(47.6)
(43.2)
(4.9
)
(7.6
)
(44.5)
(27.9)
(13.5)
(25.4)
.50
.55
.77
1.0 MAX
MOUNTING SURFACE
#8-32
2 PLCS
#6-32
2 PLCS
.187 DIA.
2 PLCS
.25 R
2 PLCS
.12
(25.4)
24-330 VAC
INPUT
SOLID STATE
3-32 VDC
OUTPUT
SNC-R2040-502
(-)
Corporatio
n
National Control
s
4
LINE
1
3 (+)
MODEL No:
RELAY
2
LOAD
40 AMP WITH HEATSINK
NORMALLY OPEN
R
POINT A
8-32 THRD
WITH SADDLE
CLAMP
6-32 THRD
W/ SADDLE
CLAMP
SOLID STATE RELAYS
Solid State Power Relays
Model R2025
FEATURES
CSA certified file #LR701222
●
100% functionally and surge tested
●
24 to 330 VAC load voltage
●
4000 V isolation
●
Optically coupled
●
●
Epoxy filled
●
Capable of being switched by a single
CMOS gate
●
Built in snubber
●
Capable of switching inductive loads of
0.5 power factor
●
UL recognized component file
#E164906
The AMETEK NCC Series of Solid State
Power Relays provide a highly reliable
means of switching a variety of AC loads up
to 20 A. Snubber circuitry is included with
each unit for high dV/dt applications and
inductive loads.
Use of rugged output devices provides
significant increases in turn-on surge capa
bility. Two input control voltage ranges are
available in either Form A (SPST-NO) or
Form B (SPST-NC) output configurations.
SPECIFICATIONS
ALL MODELS
Max. Load Current*: 25 A
Max. Peak Transient Voltage: 600 Vpk
Output Voltage Range: 48-300 VAC
Max. Off State Leakage Current: 7.2 mA at
300 VAC (RMS)
Operating Temp. Range: -40 to 80 °C
Storage Temp. Range: -40 to 65 °C
Dielectric Strength at 60 Hz
Between Input/Output: 4000 VAC (RMS)
Between Input/Base: 2500 VAC (RMS)
Between Output/Base: 2500 VAC (RMS)
Max. Surge Current: 370 arms, 8.3 ms
Min. Off State dV/dt (static): 500 V/µS
Thermal Resistance Junction to Case
(Point A): 1.3°C/W Tj max.=110 °C
Turn On Type: Random
SNC-R2025-507 AND SNC-R2025-517
Max. On State Voltage Drop:1.5 VAC (RMS)
Input Impedance: 1700 ohms ±5%
Turn Off Voltage: 2 VAC/DC min.
Turn On Voltage: 3 VAC/DC max.
Output Form:
-
SNC-R2025-507: SPST-NO
SNC-R2025-517: SPST-NC
Control Voltage Range: 3-30 VAC/DC
SNC-R2025-501 AND SNC-R2025-511
Max. On State Voltage Drop: 1.65 VAC (RMS)
Input Impedance: 56 Kohms ±5%
Turn Off Voltage: 30 VAC/DC min.
Turn On Voltage: 70 VAC/DC max.
Output Form:
SNC-R2025-501: SPST-NO
SNC-R2025-511: SPST-NC
Control Voltage Range: 70-140 VAC/DC
* See derating curves for proper heat sink requirements
ORDERING INFORMATION
INPUT VOLTAGE OUTPUT CONFIGURATION PART NUMBER
3 to 30 VAC/DC Normally Open, 25 A SNC-R2025-507
7 to 140 VAC Normally Open, 25 A
3 to 30 VAC/DC Normally Closed, 25 A SNC-R2025-517
Heatsink, .9 °C/W, supplied with Thermal Compound and Mounting Hardware ASY-HS25A-011
AMETEK National Controls Corp. • 1725 Western Drive • West Chicago, Illinois 60185 • Tel: 800-323-2593 • 630-231-5900 • FAX: 630-231-1377 • www.nationalcontrols.com
7 to 140 VAC Normally Closed, 25 A
ACCESSORY PART NUMBER
SNC-R2025-501
SNC-R2025-511
.625 TYP
1.875
.093
.187 TYP
.312 TYP
2.375
4.75
3.935
2.155
2.625
.40 TYP
5.625
– .031
1.875
–.031
.187 DI
A
4.312
2.156
5 10 15 20 25
40
60
80
Max. Allowable Mounting Surface Temp. (C)
(Measured at Point A)
Load Current (amps RMS 60Hz)
20
15
10
5
706050403020 80
25
Ambient Temp. (C)
Load Current (amps RMS)
NO
HEAT SIN
K (FREE
A
IR)
15"x15"(450 sq. in.)
H
EAT
SIN
K
0
0
20
10"x10"(200 sq.
i
n.) HEAT SINK
6"x6
"(72 sq. in.)
HEAT SINK
0
Heat Sink Data
Heat sinks for derating curves are 1/8” thick
aluminum with thermal compound between
the mounting surface and solid state relay
mounting plate.
SOLID STATE RELAYS
5-3
AMETEK National Controls Corp. • 1725 Western Drive • West Chicago, Illinois 60185 • Tel: 800-323-2593 • 630-231-5900 • FAX: 630-231-1377 • www.nationalcontrols.com
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