Jokab Safety JSR2A Catalog Page

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6:38

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Expansion relay

JSR2A

Approvals:

TÜV Nord

Expansion relay with:

More safe outputs

Greater current switching
capacity

Information output

Features:

Switching capacity of up to
10 A/250V per output

Width 45 mm

LED function indication

More outputs

The JSR2A expansion relay is used to provide increased
switching capacity and number of safety outputs to a safety
relay. This means that an unlimited number of dangerous
machine operations and functions can be stopped from one
safety relay.

Greater current switching capacity

The JSR2A Expansion relay enables switching of up to 10
amps (AC/DC) per output contact.

Safety level

The JSR2A has twin stop functions, that is, two relays with
mechanically positively guided contacts. A monitored stop
function is achieved by connecting the test output (terminals
X1 and X2) to the test or reset input on the safety relay which
is to be expanded.

4 NO/1 NC relay outputs

5 supply versions

Supply 24 VDC/VAC, 48
115 and 230 VAC

Quick release connector
blocks

Regulations and standards

The JSR2A is designed and approved in accordance with
appropriate directives and standards. See technical data.

Connection examples

For examples of how our safety relays can solve various safety
problems, please see the section “Connection examples”.

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6:39

Technical data – JSR2A

mm

1 2 0

7 4

45

Manufacturer ABB AB/Jokab Safety, Sweden
Article number/Ordering data

JSR2A 10 A 24 AC/DC 2TLJ010027R0100
JSR2A 10 A 115 AC 2TLJ010027R0400
JSR2A 10 A 230 AC 2TLJ010027R0500

Colour Black and beige
Supply A1 - A2 24 VDC/AC, 48, 115,

Power consumption 2,7W/2,4–4 VA
Relay Outputs 4 NO + 1 NC
Max. switching capacity
Resistive load AC 8A/230 VAC/1840 VA

Inductive load AC

Resistive load DC
Inductive load DC

Max. total switching capacity:
Min. load 10mA/10V/100mW (if load on

Contact material AgSnO2 + Au flash
Fuses Output (External) 6A gL ( 8A fast if short-circuit

Conditional short-circuit current
(1 kA)

Max. Input wire res. at nom.
voltage

Mechanical operational Life

Response time at

deactivation (input- output) <25 ms
activation (input - output): <15 ms

Terminals (removable)

Max. screw torque 1 Nm

230 VAC + 15%, 50-60 Hz

10A/115VAC/48VAC/24VAC/
1840 VA

AC15 230VAC 4A (NO-contact)

1.5A (NC-contact)
8A/24 VDC/192 W

DC13 24VDC 1.2A (NO/NC­contact)

16A distributed on all contacts

contact has not exceeded 100 mA)

current >500A )

10A gG

24 VDC/VAC: 100 Ohm
4 8/ 115 /2 30 VAC: 200 Ohm

>107 operations

Connection Area (max.)

Single strand 1 x 4 mm2 or 2 x 1.5 mm2/12AWG

Conductor with socket contact 1 x 2.5 mm2 or 2 x 1 mm

Mounting 35 mm DIN-rail
Protection class terminals

Enclosure IP 40 IEC 60529
Terminals IP 20 IEC 60529

LED indication

On

1 2

Impulse Withstand Voltage 2.5kV
Pollution Degree 2
Operating temperature range -10°C to +55°C (with no icing or

Operating humidity range
Weight 313 g
Performance (max.)

Functional test: The relays must be
cycled at least once a year

Conformity 2006/42/EC, 2006/95/EC,

Supply voltage

Output relays 1 and 2

condensation)

35% to 85%

Category 4/PL e
(EN ISO 13849-1:20 08)
SIL 3 (EN 62061:2005)
PFHd 1.55E-08

2004 /108/ EC
EN 954-1:1996, EN 62061:2005
EN ISO 13849-1:2008

Connector blocks are detachable
(without cables having to be disconnected)

2

1

2

3

4

5

6

7

Technical description – JSR2A

Supply

Test

Outputs

The JSR2A has to be connected to a suit­able safety relay in order to fulfill the nec­essary safety requirements (see chapter
“Connection examples”). The Safety Relay
controls and monitors the JSR2A unit. (The
JSR2A can be connected for single or dual
channel operation - see Electrical connection
diagrams below). When the inputs to S14
and S24 close, internal relays K1 and K2
are activated. A stop signal is given, K1 and
K2 drop, if the inputs are opened or during
power failure.

Electrical connection – JSR2A

One channel expansion of RT6 with
JSR2A connected for manual reset.

Reset

To check that both the K1 and K2 relays
drop during a stop signal they must be
monitored. This is achieved by connecting
X1 and X2 to the test or reset input on the
safety relay which is expanded. K1 and
K2 have mechanically positively guided
contacts, therefore, if one of the output
contacts should stick closed then the relay’s
contact in X1-X2 cannot be closed thus
preventing a new ready signal being given
to the safety relay.

Dual channel expansion of RT6 with JSR2A
connected for automatic reset.

8

9

10

11

12

13

14