Cutler Hammer, Div of Eaton Corp Safety Relays Selection Guide
Control Relays and Timers
Safety Relays
Safety Relays
3.10
Product Selection
Technical Overview
Single
Channel
■ — 4 — — 1 — 24 Vac/Vdc ■ Main ESR5-NO-41-24VAC-DC
■ ■ 2 — —1 —24 Vac/Vdc■ Main ESR5-NO-21-24VAC-DC
■ ■ 3 — —1 —24 Vac/Vdc■ Main ESR5-NO-31-24VAC-DC
■ ■ 3 — —1 —230 Vac ■ Main ESR5-NO-31-230VAC
■ ■ 3 — —1 —24–230 Vac/Vdc■ Main ESR5-NO-31-AC-DC
■ ■ 2 2 0.1–30s — — 24 Vdc ■ Main ESR5-NV3-30
—
■ — 5 — — 1 1 24 Vac/Vdc ■ Expansion ESR5-NE-51-24VAC-DC
■ — — 4 0.3–3s 1 1 24 Vdc ■ Expansion ESR5-VE3-42
Application Overview
Emergency
Stop
■ ■ —— ——— — ESR5-NO-41-24VAC-DC
■ ■ —— ——■ — ESR5-NO-21-24VAC-DC
■ ■ —— ——■ — ESR5-NO-31-24VAC-DC
■ ■ —— ——■ ■ ESR5-NO-31-230VAC
■ ■ —— ——■ ■ ESR5-NO-31-AC-DC
■ ■ ■ ——■ ■ ■ ESR5-NV3-30
—
——— —
——— —
Application Overview, continued
Single
Channel
■ —0 2 PL d SIL 3 ESR5-NO-41-24VAC-DC
■ ■ 04 PL e SIL 3 ESR5-NO-21-24VAC-DC
■ ■ 04 PL e SIL 3 ESR5-NO-31-24VAC-DC
■ ■ 04 PL e SIL 3 ESR5-NO-31-230VAC
■ ■ 04 PL e SIL 3 ESR5-NO-31-AC-DC
■ ■ 0/1 4 PL e SIL 3 ESR5-NV3-30
—
■ —0 4 PL e SIL 3 ESR5-NE-51-24VAC-DC
■ —1 3 PL d SIL 2 ESR5-VE3-42
Notes
1
2
Dual
Channel
■ 2 — —1 —24 Vac/Vdc■ Main ESR5-NZ-21-24VAC-DC
Laser scanners or light curtains with OSSD outputs.
All main units can also be reset automatically or manually.
Safety
Output (NO)
Safety
Switches
■ — ■ —— ■ — ESR5-NZ-21-24VAC-DC
Dual
Channel
■ 04 PL e SIL 3 ESR5-NZ-21-24VAC-DC
Safety
Output (NO)
(Delayed)
Light Curtain/
1
OSSD
Stop Category
EN 60204
Output
Delay
Two-Hand Control
(EN 574 Type III C)
Signal
Output
(NC)
Contact
Expansion Off-Delayed
■ —— — ESR5-NE-51-24VAC-DC
■ ■ —— ESR5-VE3-42
Control Category
to EN 954-1
Feedback
Output
Control
Voltage
Achievable PL per
ISO 13849-1
Removable
Ter mi na l
Blocks
Cross Circuit
Recognition
Achievable SIL per
EN IEC 62061 Catalog Number
Type of
Unit Catalog Number
Monitored
Manual Reset
2
Catalog Number
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—January 2012 V7-T3-193
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