CSR Solid-state Relays and AC Voltage Regulators

Series Part Number

Part Number: CSR E - 40 DA R
Explanation:

Series

CSR - Single-phase solid-state relay family
CTR - Three-phase solid-state relay family

Housing

Omitted - Standard type with light-green housing
E - Economy type with gray housing

Load current

10 - 10A
25 - 25A
40 - 40A
60 - 60A; DA or AA switching configurations
80 - 80A; DA or AA switching configurations
100 - 100A; DA or AA switching configurations
120 - 120A; listed three-phase configurations only
VA and DD configurations are listed at 10A, 25A and 40A.

Control and load

DA - DC control with AC load
AA - AC control with AC load
DD - DC control with DC load; single-phase models
VA - External-potentiometer AC voltage regulator; single-phase models
Use the control and load ranges assigned to the complete model family.

Turn-on mode

Omitted - Standard zero-cross turn-on for AC switching
R - Random turn-on for AC switching
The displayed CSRE-40DAR example uses DC control and an AC load; this turn-on selection does not describe DC-output or potentiometer-regulator operation.

Description

CSR solid-state relays use power semiconductors for contactless industrial switching. Single-phase CSR and three-phase CTR configurations are available in standard light-green housings or gray E economy housings. DA selects DC control of an AC load, AA selects AC control of an AC load, DD selects DC control of a DC load, and VA selects external-potentiometer AC regulation.

Zero-cross turn-on waits for the load voltage to enter the zero region, with up to a half-cycle turn-on delay, reducing load impact and radio-frequency interference. Random turn-on responds to the control signal immediately. AC thyristor outputs turn off when current falls below the holding current. Enhanced antiparallel-thyristor construction has a commutating dv/dt reference of 500V/µs, compared with 300V/µs for the conventional triac reference. Applications include temperature and lighting regulation, automation, CNC, packaging, textile, glass and plastics machinery.

Switching and Control Selection

Current options are separate rated selections. VA models use a 500kΩ, 0.25W external potentiometer. Their control specification is a resistance and power rating, rather than a control-voltage range.

Model patternCurrent optionsLoad voltageControl inputControl currentOn-state dropOff-state leakage
CSRE-DA10A, 25A, 40A, 60A, 80A, 100A24–480VAC4–32VDC3–25mA DC≤1.5V≤10mA at 10–40A; ≤20mA at 60–100A
CSRE-AA90–250VAC≤12mA AC
CSRE-VA10A, 25A, 40A10–250VAC500kΩ, 0.25W potentiometerNot applicable≤5mA
CSRE-DD12–250VDC3–32VDC3–25mA DC≤2.3V
CTRE-DA10A, 25A, 40A, 60A, 80A, 100A, 120A40–480VAC4–32VDC3–25mA DC≤1.5V≤15mA
CSR-DA10A, 25A, 40A, 60A, 80A, 100A24–480VAC4–32VDC3–25mA DC≤10mA at 10–40A; ≤20mA at 60–100A
CSR-AA80–250VAC≤12mA AC
CSR-VA10A, 25A, 40A10–250VAC500kΩ, 0.25W potentiometerNot applicable≤5mA
CSR-DD12–250VDC3–32VDC3–25mA DC≤2.3V
CTR-DA10A, 25A, 40A, 60A, 80A, 100A, 120A40–480VAC4–32VDC3–25mA DC≤1.5V≤15mA

For these ten patterns, turn-off time is ≤10ms, isolation voltage is 2500VAC, insulation resistance is 1000MΩ at 500VDC, and operating temperature is -30–80°C. The additional CTRE-AA and CTR-AA outlines below have 10A through 120A model references, 40–480VAC load markings and an AA control selection of 80–250VAC. Their detailed control-current, voltage-drop and leakage values are unspecified.

Complete Model References

Model familyComplete references
CSRE-DACSRE-10DA, CSRE-25DA, CSRE-40DA, CSRE-60DA, CSRE-80DA, CSRE-100DA
CSRE-AACSRE-10AA, CSRE-25AA, CSRE-40AA, CSRE-60AA, CSRE-80AA, CSRE-100AA
CSRE-VACSRE-10VA, CSRE-25VA, CSRE-40VA
CSRE-DDCSRE-10DD, CSRE-25DD, CSRE-40DD
CTRE-DACTRE-10DA, CTRE-25DA, CTRE-40DA, CTRE-60DA, CTRE-80DA, CTRE-100DA, CTRE-120DA
CTRE-AACTRE-10AA, CTRE-25AA, CTRE-40AA, CTRE-60AA, CTRE-80AA, CTRE-100AA, CTRE-120AA
CSR-DACSR-10DA, CSR-25DA, CSR-40DA, CSR-60DA, CSR-80DA, CSR-100DA
CSR-AACSR-10AA, CSR-25AA, CSR-40AA, CSR-60AA, CSR-80AA, CSR-100AA
CSR-VACSR-10VA, CSR-25VA, CSR-40VA
CSR-DDCSR-10DD, CSR-25DD, CSR-40DD
CTR-DACTR-10DA, CTR-25DA, CTR-40DA, CTR-60DA, CTR-80DA, CTR-100DA, CTR-120DA
CTR-AACTR-10AA, CTR-25AA, CTR-40AA, CTR-60AA, CTR-80AA, CTR-100AA, CTR-120AA

Standard green housings are also illustrated with CSRM or CSRT body markings. Select by the complete model and its control and load ratings.

CSR model field positions
Five ordering fields: family, housing type, current selection, control/load type and turn-on mode. The displayed Series Part Number example is CSRE-40DAR.

Application References and Load Selection

Broader application references below are separate from the complete model list: the general range is 0.5–400A and 12–680V, with DC/AC, AC/AC and DC/DC input/output choices and an unspecified IEC standard reference. An industrial-class reference extends to 100–800A; these ranges do not assign an additional complete model or expand a listed model's rating.

Application classControl voltageControl currentStart currentControl off voltageOperating currentOperating voltageProtection
CSR DC/AC4–32VDC3–25mA≥5mA≤1.5VDC10–100A24–480VACRC/MOV; fast fuse
CSR AC/AC80–250VAC<30mA≤10VAC
Industrial class4–32VDC<20mA≤1.5VDC100–800A
CSR DC/DC3–32VDC3–25mA≤1.5VDC10–40A12–250VDCDiode
CTR4–32VDC<30mA≥9mA≤2.5VDC10–120A40–480VACRC/MOV; fast fuse
Solid-state voltage regulator500kΩ, 0.25W external potentiometer10–40A10–250VAC

This application guide specifies isolation of ≥2500VAC and general safe-load references of 60% for resistive loads and 40% for inductive loads. RC denotes a built-in resistor-capacitor absorption circuit; MOV denotes an external parallel metal-oxide varistor. Start-current and control-off thresholds are separate from the model-specific input-current range.

Load typeRoom-temperature reference ratio
Pure resistance100%
Heating wire50–70%
Incandescent lamp35–50%
Transformer or electromagnet25–40%
Single-phase AC motor12–24%
Three-phase AC motor18–33%

Continuous current must remain at or below 70% of nominal current, with heatsink temperature no higher than 75°C. The room-temperature ratios do not override continuous-operation, safe-load or temperature limits. Prevent a load short circuit, use appropriate fast-fuse protection and add a varistor for inductive loads.

CSR application circuits for switching regulation and motor loads
Single-phase DA, AA, DD and VA circuits, followed by motor direction, three-phase load and three-phase motor examples. Example load voltages remain within the applicable model range.
CSR zero-cross and random switching waveforms
Supply, control and load waveforms showing zero-cross and random turn-on behavior, including pulse control.

Dimensions and Housing Structures

Dimensions are in mm. Single-phase models have a 44.5×59×29 body, 47.5 mounting-center spacing, Ø4.5 fixing holes, two M5 output terminals and two M4 input terminals. Three-phase models have a 104.5×73.5×33 body, 91.6 and 47.6 mounting dimensions, six M5 power terminals and two M3 control terminals.

CSR hinged cover and B01 rail clamp
Integrated hinged protective cover and CSR-B01 rail clamp.
CSRE DA AA and VA outlines
CSRE-DA, CSRE-AA and CSRE-VA model references, housing structures and dimensions.
CSRE DD CTRE DA and AA outlines
CSRE-DD, CTRE-DA and CTRE-AA outlines; the AA control connection is AC.
CSR DA AA and VA outlines
Standard green CSR-DA, CSR-AA and CSR-VA model references and dimensions.
CSR DD CTR DA and AA outlines
CSR-DD, CTR-DA and CTR-AA outlines; the AA control connection is AC.
Standard configurationCurrent groupWeight
CSR-DA and CSR-AA10–40A90g
60–100A140g
CSR-VA and CSR-DD10–40A90g
CTR-DA10–40A350g
60–120A450g

Temperature Curves and Heatsinks

CSR 10A through 100A current and temperature curves
Maximum-current curves with and without a heatsink for 10A, 25A, 40A, 60A, 80A and 100A units. Apply the separate continuous-current and load-type limits as well.
HeatsinkAssigned current groupDimensions and fixing references in mm
CSR-A01CSR 10–40A75×50 plan, 44 height; 47.5 fixing pitch; 4.5 slot width
CSR-A02CSR 60–100A125×68 plan, 50 height; 47.5 fixing pitch
CTR-A03CTR 10–120A100 base width, 80 upper width and 80 height; transverse fixing pitch 47.5; inner longitudinal pitch 90; outer longitudinal pitch 130
CSR A01 and A02 heatsink dimensions
CSR-A01 and CSR-A02 profiles, overall dimensions and fixing locations.
CTR A03 heatsink dimensions
CTR-A03 profile and fixing layout; the longitudinal dimensions of 90 and 130 refer to fixing-center spacings.

Standards References and Application Conditions

Marking referenceStandardDocument reference
CCCGB/T14048.5Available on request; no document number specified
CEEN60947-5-1

A separate safety-rating reference lists AC-12/DC-12, 24–660VAC and resistive current selections of 10A, 25A, 40A, 60A, 80A, 100A and 120A. This reference does not expand the operating voltage of an individual model.

These products are intended for industrial control. Exceptionally high-reliability or safety applications, including nuclear, gas and power systems and situations involving personal safety or property, require a specially designed product and written application approval. The same requirement applies to harsh outdoor, chemically contaminated, electromagnetic, vibration or shock environments; fire or explosion hazards involving flammable gases, strong acids or alkalis; military uses and aerospace projects.