5

EB3C Relay Barrier

Explosion-Protection and Electrical Specifications

Note: Values in ( ) are those approved by TIIS (Technology Institution of

Industrial Safety, Japan).

Certification No.

Note: For details about switches, see “Switch Explosion-Protection Specifica-

tions” on page 5 and “3. Switches in the Hazardous Area” on page 9.

General Specifications

Switch Explosion-Protection Specifications (TIIS Japan)

Simple apparatuses in accordance with relevant standards of each country can be

installed in the hazardous area and connected to the EB3C located in the safe

area. In Japan, any switches, though regarded as simple apparatuses, must be cer-

tified for explosion-proof devices. EB9Z-A and EB9Z-A1 are IDEC’s generic Type

No. of any single apparatuses certified by TIIS Japan for use with the EB3C, there-

fore simple apparatuses with specifications shown below can be used as those

approved by the Japanese explosion-proof certification.

Note: For details, see “3. Switches in the Hazardous Area” on page 9.

Explosion Protection

Intrinsic safety type

(IEC compliant) [Exia] II C

Degree of Protection

IP20 (IEC60529)

Relay Barrier

Safe indoor place

(non-hazardous area)

Switch

For zone 0, 1, 2 hazardous areas

Non-intrinsically Safe Circuit

Maximum Voltage (Um)

250V AC 50/60Hz, 250V DC

Wiring Method

1-channel

Separate Wiring

16-channel

Common Wiring

Rated Operating Voltage

12V DC ±10%

Rated Operating Current

10 mA DC ±20%

Maximum Output Voltage (Uo)

13.2V DC

Maximum Output Current (lo)

14.2 mA

227.2 mA

Maximum Output Power (Po)

46.9 mW

750 mW

Maximum External Inductance (Lo)

(Note)

175 (125) mH

0.68 (0.68) mH

Maximum External

Capacitance (Co)

(Note)

900 (740) nF

Allowable Wiring Resistance (Rw)

300

Ω

600/(n+1)

Ω

(n = number of

common

channels)

Maximum Channels per

Common Line

–16

Contact Configuration

1NO

Rated Insulation Voltage (Ui)

250V AC, 125V DC

Thermal Current (lth)

3A (common terminal: 8A)

Resistive Load

AC: 750 VA, DC: 72W

Inductive Load

AC: 750 VA (cos ø = 0.3 to 0.4)

DC: 48W (L/R = 7 ms)

Resistive Load

250V AC 3A, 24V DC 3A

Inductive Load

250V AC 3A (cos ø = 0.3 to 0.4)

24V DC 2A (L/R = 7 ms)

Minimum Applicable Load

0.1V DC, 0.1 mA (reference value)

Contact Resistance

50 m

Ω maximum (initial value)

Turn ON Time

12 ms maximum (rated voltage)

Turn OFF Time

10 ms maximum (rated voltage)

Mechanical Life

20,000,000 operations minimum

(at 18,000 operations/hour, without

load)

Electrical Life

100,000 operations minimum

(at 1,800 operations/hour, rated load)

Short-circuit Protection

None

Rated Voltage

24V DC

Maximum Voltage

30V DC

Maximum Current

100 mA (connector type: 15 mA)

Leakage Current

0.1 mA maximum

Voltage Drop

1V maximum

Clamping Voltage

33V (1W)

Inrush Current

0.5A maximum (1 sec)

Turn ON Time

0.1 ms maximum (resistive load)

Turn OFF Time

0.4 ms (typical) (resistive load)

Short-circuit Protection

None

Certification

Organization

Explosion Protection

Certification No.

FM

Class I, II, III Div. 1

Group A, B, C, D, E, F, G

3015417 (terminal type)

3019223 (connector type)

Class I, Zone 0 AEx [ia] IIC

CSA

Class I Div. 1 Group A, B, C, D

166730

NEMKO

[EExia] II C

Nemko 02ATEX279

TIIS Japan

Relay barrier:

[Exia] II C

C15753

Switch (EB9Z-A):

Exia II CT6

C15758

Switch (EB9Z-A1):

Exia II BT6

C15961

ClassNK

Exia II C

02T606

Power Voltage Type

AC Power Type

DC Power Type

Rated Power Voltage

100 to 240V AC

24V DC

Allowable Voltage

Range

85 to 264V AC

21.6 to 26.4V DC

Rated Frequency

50/60 Hz (allowable range:

47 to 63 Hz)

—

Inrush Current

10A (100V AC)

20A (200V AC)

10A

Dielectric Strength

(1 minute, 1 mA)

Between intrinsically safe circuit and non-intrinsically

safe circuit:1500V AC

Between AC power and output terminal: 1500V AC

Between DC power and transistor output terminal:

1000V AC

Operating Temperature –20 to +60°C (no freezing)

Storage Temperature

–20 to +60°C (no freezing)

Operating Humidity

45 to 85% RH (no condensation)

Atmosphere

800 to 1100 hPa

Pollution Degree

2 (IEC60664)

Insulation Resistance

10 M

Ω minimum (500V DC megger, between the same

poles as the dielectric strength)

Damage Limits

Panel mounting:

10 to 55 Hz, amplitude 0.75 mm

DIN rail mounting: 10 to 55 Hz, amplitude 0.35 mm

Operation

Extremes

(relay output

only)

Panel mounting:

10 to 55 Hz, amplitude 0.5 mm

DIN rail mounting: 10 to 55 Hz, amplitude 0.35 mm

Damage Limits

Panel mounting:

Terminal Style

M3 screw terminal

Mounting

35-mm-wide DIN rail or panel mounting (M4 screw)

Power Consumption

(approx.)

9.6 VA (EB3C-R10A at 200V AC)

4.8 W (EB3C-R16CD at 24V DC)

Weight (approx.)

0.39 kg (EB3C-R16CD)

Switch Type No.

EB9Z-A

EB9Z-A1

Explosion Proof

Exia II CT6

Exia II BT6

Operating Temperature –20 to +60°C (no freezing)

Operating Humidity

45 to 85% RH (no condensation)

Degree of Protection

IP20

Dielectric Strength

500V AC, 1 mA

Intrinsic Safety Ratings

and Parameters

1-channel Separate Wiring

Maximum input voltage (Ui): 13.2V

Maximum input current (Ii): 14.2 mA

Maximum input power (Pi): 46.9 mW

Internal inductance (Li):

≤ 5 µH

Internal capacitance (Ci):

≤ 2 nF

16-channel Common Wiring

Maximum input voltage (Ui): 13.2V

Maximum input current (Ii): 227.2 mA

Maximum input power (Pi): 750 mW

Internal inductance (Li):

≤ 80 µH

Internal capacitance (Ci):

≤ 32 nF

Enclosure Material

Metallic: Magnesium content must be 6% or less

(steel and aluminum are acceptable)

Plastic: Switch operator

exposed area

When the switch has a

wider exposed area, attach

a caution label as shown at

right.

Switch Ratings

Contact rating:

Ui, Ii minimum

Contact resistance:

0.5

Ω maximum

Printed circuit board: Thickness 0.5 mm minimum

Copper foil width 0.15 mm

minimum

Thickness 18 µm minimum one/

both side(s)

A resistor to prevent contact welding and an LED can be

connected to 1-channel separate wiring circuits. Consult

IDEC for details.

To prevent electrostatic

charges, do not rub the

switch surface during

operation. Use a soft

cloth dipped with water

for cleaning.

Caution

Caution Label Example

EB3C-3L catalog Page 5 Monday, February 13, 2006 1:44 PM