Specifications

PHOENIX CONTACT 9
3 ~ 400 V AC
3 ~ 400 V AC
PHOENIX CONTACT 13
04.04.2008 12:51:52 Uhr04.04.2008 12:51:52 Uhr
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d safety
ce with
contacts
ation
PSR-ESA4_B PSR-ESA2_B PSR-THC4
Order No. 2963763 (screw connection)
Order No. 2963941 (spring-cage connection)
• Safety relay for emergency stop and safety
door monitoring
• Max. safety category 4 in accordance with
EN 954-1
• Single or two-channel control
• Manual or automatic activation
• Optionally with two or three enabling
contacts and one alarm contact
• Optionally with or without safe isolation
Order No. 2963802 (screw connection)
Order No. 2963954 (spring-cage connection)
• Safety relay for emergency stop and safety
door monitoring
• Max. safety category 2 in accordance with
EN 954-1
• Single-channel control
• Manual or automatic activation
•
Four enabling contacts and one alarm contact
Order No. 2963721 (screw connection)
Order No. 2963983 (spring-cage connection)
• Safety relay for two-hand control systems,
and for safety door monitoring
• Max. safety category 4 in accordance with
EN 954-1
• Two-channel control
•
Automatic activation
• Two enabling contacts and one alarm contact
• Safe isolation between contacts
Emergency stop/safety door
For monitoring the emergency stop and
safety door circuits the PSR safety relays provide
up to eight enabling current paths and one
signaling current path. The modules with manual,
monitored activation also check that the
connected start button is functioning to
guarantee reliable detection of errors.
Two-hand control systems
Two-hand control systems must be monitored for
simultaneity of less than 0.5 seconds in accordance
with the EN 574 standard. The time is checked and
evaluated reliably by the corresponding modules in
accordance with the category type III C.
Safety door
Indicator light
Solid-state
contactor
Drive
Reset button
PSR safety
relay
Example of a safety door application with a PSR-ESM4 safety relay that is
activated manually using a switch. The drive is reliably switched off via a
Contactron solid-state contactor.