The CMS-E-AR is an evaluation unit for use with Euchner CMS safety sensors, providing one safety contact (1 NO contact pair) via relay outputs at terminals 13/14. It features a 24 V DC supply, an LED display showing power status and read head conditions (D1/D2), and terminal connections rated 0.14 - 2.5 mm² for wiring flexibility. Designed for TH 35 rail mounting, it is housed in polycarbonate with terminal protection of IP20 and housing protection of IP40, suitable for control panel installation in safety circuits up to performance level PL c.
Key specifications
| LED display | 1 indicator LED Power (UB) and 2 status indicators for the read heads (D1/D2) |
| Fuse | |||
| Protection internal (operating voltage UB) | 0.75 A Automatically resetting fuse PTC | ||
| Safety contacts 13/14 | 3A gG A (External contact fuse (safety circuit) acc. to EN IEC 60269-1) | ||
| Connection cross section | 0.14 - 2.5 mm² | ||
| Outputs | |||
| Number | Type | Function | Footnote |
| Relay contacts, floating | Safety contacts 13/14 | (1 NO contact pair) | |
| Rated insulation voltage Ui | 250 V | ||
| Operating voltage | |||
| DC | 24 V -10% ... +10% (All the electrical connections must either be isolated from the mains supply by a safety transformer according to EN 61558-2-6 with limited output voltage in the event of a fault, or by other equivalent insulation measures.) | ||
| Utilization category | |||
| AC-1 | 3A, 250V (Max. switching current per contact) | ||
| AC-15 | 0.9A, 250V (Max. switching current per contact) | ||
| DC-13 | 1.8A, 24V (Max. switching current per contact) | ||
| Risk time according to EN 60947-5-3 | max. 10 ms | ||
| Switching load | |||
| According to UL class 2 | Input: 24 V DC; output: 24 V DC | ||
| Switching capacity (VA) | |||
| Safety contacts 13/14 | max. 750 VA | ||
| Switching voltage | |||
| Safety contacts 13/14 | min. AC 250 V | ||
| Switching current | |||
| Safety contacts 13/14 | 2 - 3000 mA at DC 24 V | ||
| Current consumption | 70 mA | ||
| Degree of contamination (external, according to EN 60947-1) | 2 |
| Connection type | Connection terminals, plug-in |
| Mechanical life | 10 x 10⁶ |
| Mounting type | TH 35 mounting rail (EN IEC 60715) |
| Degree of protection | Terminals IP20 / housing IP40 |
| Ambient temperature | 0 to 50 °C |
| Material | |
| Housing | Polycarbonate (PC) |
| Number of switching cycles | |
| ≤ 1 A at 24 V DC | max. 75000 1/y |
| ≤ 0.1 A at 24 V DC | max. 96000 1/y |
| ≤ 3 A at 24 V DC | max. 18000 1/y |
| Mission time | 20 y (This value is dependent on the number of switching cycles and the switching current.) |
| Monitoring of the guard position with>2 read heads, with serial wiring | |
| Category | 1 (This value is dependent on the number of switching cycles and the switching current.) |
| Performance Level | PL c (This value is dependent on the number of switching cycles and the switching current.) |
| PFHD | 1.1 x 10-6(This value is dependent on the number of switching cycles and the switching current.) |
| in compliance with | EN ISO 13849-1: 2015 ; EN 50178: 1997 ; EN 60204-1: 2006/A1: 2009 ; EN ISO 14119: 2013; EN 6100-6-2: 2005; EN 6100-6-3: 2007/A1:2011; EN 60947-5-3: 2013 |
Declarations of conformity
Instructions
Operating Instructions Evaluation Unit CMS-E-AR
Safety information
Approvals and certificates
Approval
TUEV Sued Italia
c UL us
Magnetically Coded Safety Switches CMS
Show CAD data for TraceParts
| Item designation | CMS-E-AR |
| Gross weight | 0,171kg |
| Customs tariff number | 85364110 |
| ECLASS | 27-27-24-02 Safety-related magnetic proximity switch |