Phoenix Contact REL-MR-60DC/21 Plug-in Relay 60 V DC

Description

REL-MR-60DC/21: plug-in miniature relay, 60 V DC coil, 1 changeover contact

The Phoenix Contact REL-MR-60DC/21 (order no. 2961118) has the same 5 mm wide housing and single changeover contact as the 24 V relay 2961105, but its coil is made for 60 V DC. The input voltage range is 36 to 165 V DC. It is intended for control circuits that run at higher DC voltages than 24 V.

Seven Star LLC supplies the REL-MR-60DC/21 as an independent supplier in Muscat for projects in Oman and the GCC, quoted against the exact part number shown here.

Technical specifications of the REL-MR-60DC/21

Parameter Specification
Manufacturer / part number Phoenix Contact REL-MR-60DC/21 (order no. 2961118)
Nominal input (coil) voltage 60 V DC
Input voltage range 36 V DC – 165 V DC
Typical input current 3 mA
Coil resistance 20500 Ω ±15 % (at 20 °C)
Response / release time 5 ms
Contact configuration 1 changeover contact
Contact material AgSnO
Maximum switching voltage 250 V AC/DC
Limiting continuous current 6 A
Maximum inrush current 10 A (4 s)
Minimum switching current 10 mA (at 12 V)
Interrupting rating, ohmic load 140 W (at 24 V DC); 20 W (at 48 V DC); 18 W (at 60 V DC); 23 W (at 110 V DC); 40 W (at 220 V DC); 1500 VA (for 250 V AC)
Mechanical service life 2x 107 cycles
Test voltage winding/contact 4 kV AC (50 Hz, 1 min., winding/contact)
Ambient temperature (operation) -40 °C – 85 °C
Degree of protection RT III
Switching capacity 2 A (at 24 V, DC13); 0.2 A (at 110 V, DC13); 0.1 A (at 220 V, DC13); 3 A (at 24 V, AC15); 3 A (at 120 V, AC15); 3 A (at 230 V, AC15)
Motor load (UL 508) 1/4 HP, 240 – 277 V AC (N/O contact); 1/6 HP, 240 – 277 V AC (N/C contact)
Dimensions (W x H x D) 5 x 28 x 15 mm

How the REL-MR-60DC/21 works

The REL-MR-60DC/21 is a plug-in miniature power relay: a coil that attracts an armature and moves one or two changeover contacts. When the coil is energised within the input range in the table, the common terminal changes from the normally closed to the normally open contact. The coil and the contacts are isolated from each other, with the winding/contact test voltage shown in the table, so a low-voltage control signal can switch a mains-level load. The relay has no socket of its own and is designed to be plugged into a compatible base, for instance a socket module.

The higher coil voltage lowers the current: a typical 3 mA, with a coil resistance of 20500 ohms. Response and release times are 5 ms and 2.5 ms. Contacts are AgSnO, 6 A continuous, 250 V AC/DC.

Where the REL-MR-60DC/21 fits in a system

REL-MR relays are the replaceable switching element in many Phoenix Contact relay modules and in customer-built relay sockets. Ordering the relay alone is typical for spares or when a socket is already fitted. Family members differ by coil voltage, number of contacts, contact material and current rating, so the part number decides compatibility with the socket in your panel. Always check that the relay fits the socket series installed.

Use the REL-MR-60DC/21 when your control voltage is 48 to 60 V DC, as in telecom-style supplies, or where a relay has to ride out a wide voltage range of up to 165 V DC.

Selection and ordering checklist

  • Confirm the coil voltage of the REL-MR-60DC/21 against the control signal and its tolerance.
  • Check the number of changeover contacts and the pin pattern of the socket.
  • Check the load current and inrush against the contact data in the table.
  • Use gold-plated contacts only for low-level signals, and power contacts for loads.
  • Confirm the dimensions fit the socket and the DIN-rail space.
  • Verify the ambient temperature.

Installation, commissioning and maintenance of the REL-MR-60DC/21

Plug the REL-MR-60DC/21 firmly into a compatible socket, never into a socket designed for a different coil voltage. Check that the relay latches mechanically or sits fully in the retaining clip. Observe the mounting position: the datasheet permits any position. Replace the relay as a whole; do not attempt to clean or open it.

Check the socket supports the coil voltage; many sockets are keyed or marked for a specific coil. Confirm the rated protection circuit in the socket if the coil is switched by inductive paths.

Typical applications in Oman and the GCC

In Oman and the GCC, plug-in relays are used in pump and valve controls, compressor panels, HVAC and lighting control and as spare parts in maintenance stores. Keeping a few spare relays per coil voltage shortens repair times considerably.

DC distribution at 48 to 60 V is found in telecom shelters and some rail-style installations in the GCC.

Comparison with related REL-MR plug-in relays

Device Distinguishing data
REL-MR-24DC/21 (2961105) 1 CO, 24 V DC, 6 A, AgSnO, 5 mm wide
REL-MR-60DC/21 (2961118) 1 CO, 60 V DC coil, 6 A, 5 mm wide
REL-MR-24DC/21AU (2961121) 1 CO, 24 V DC, gold contacts, 50 mA
REL-MR-24DC/21-21 (2961192) 2 CO, 24 V DC, 8 A, 12.7 mm wide
REL-MR-24DC/21HC (2961312) 1 CO, 24 V DC, 16 A high continuous current
REL-MR-230AC/21-21/MS (2987972) 2 CO, 230 V AC, test button and LED

Information to send with an RFQ

  • Full part number REL-MR-60DC/21 and quantity.
  • Socket or relay module in which it will be used.
  • Coil voltage and load details.
  • Operating temperature and duty.
  • Delivery location and date.

Documents and quotation

Send us the part number REL-MR-60DC/21 and the quantity you need, and we will confirm which official documents are available for this device. Seven Star LLC is an independent supplier in Muscat and quotes for projects across Oman and the GCC; we do not act on behalf of the manufacturer.

Please also tell us the delivery location and required timeline so that availability can be checked before you commit to a project schedule.

Other Models in the Phoenix Rel Mr Range

Seven Star LLC supplies models from the Phoenix Rel Mr range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.

ModelCategory
Phoenix Contact REL-MR-24DC/21 Plug-in Relay 24 V DCPLC & I/O CardsView details
Phoenix Contact REL-MR-60DC/21 Plug-in Relay 60 V DCPLC & I/O CardsYou are viewing this model
Phoenix Contact REL-MR-24DC/21AU Plug-in Relay Gold ContactPLC & I/O CardsView details
Phoenix Contact REL-MR-24DC/21-21 Plug-in Relay 2 COPLC & I/O CardsView details
Phoenix Contact REL-MR-24DC/21HC Plug-in Relay 16 APLC & I/O CardsView details
Phoenix Contact REL-MR-230AC/21-21/MS Plug-in Relay 230 VPLC & I/O CardsView details
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About brand

Phoenix Contact is a German, family-owned manufacturer of electrical connection technology and industrial automation, founded in 1923 in Essen by Hugo Knümann. It began as a sales company, and in 1928 Knümann developed the modular terminal block mounted on a rail, the product the company is still best known for. Phoenix Contact is headquartered in Blomberg, North Rhine-Westphalia.

Seven Star LLC lists Phoenix Contact surge protection, power supplies and safety relays, and sources these components by order number for panel builders and maintenance teams in Oman.

Phoenix Contact company profile

Founded 1923, Essen, Germany, by Hugo Knümann, as Phönix Elektro- und Industrie-Bedarfsgesellschaft
Headquarters Blomberg, Germany
Ownership Family-owned (Eisert and Stührenberg families)
Key invention The modular terminal block on a DIN rail, 1928
Product families CLIPLINE terminal blocks, PCB terminals and connectors, QUINT and TRIO power supplies, relay modules, surge protection, signal conditioners, Ethernet switches and PLCnext controllers

Milestones

  • 1923: Hugo Knümann founds the company in Essen.
  • 1928: The first modular terminal block is developed.
  • Later: Headquarters move to Blomberg, Ostwestfalen-Lippe.

Phoenix Contact parts listed on this page

The TTC-6-2X1-24DC-UT (order number 2906799) is a surge protection device with screw connection for two 24 V DC signal wires that share a common reference potential. The QUINT-PS/1AC/24DC/10 is a single-phase DIN rail power supply delivering 24 V DC at 10 A. The PSR-SCP-24DC/ESP4/2X1/1X2 (order number 2981020) is a single-channel PSR safety relay for emergency stop and safety door monitoring, with two enabling current paths and plug-in screw terminals.

Phoenix Contact products we list

Family Examples
Isolator & Barrier 2906799 TTC-6-2X1-24DC-UT Surge Protector, MACX MCR-EX-SL-RPSSI-I Signal Isolator, MINI MCR-2-UI-UI 3-Way Signal Conditione…, PLT-SEC-T3-230-FM Type 3 Surge Protectio…
Power Modules QUINT-PS/1AC/24DC/10 QUINT Power Supply, QUINT4-PS/1AC/24DC/10 Power Supply, TRIO-PS-2G/1AC/24DC/10 Power Supply, UNO-PS/1AC/24DC/100W Power Supply
Automation Accessories PLC-RSC-24DC/21 Relay Module, PSR-SCP-24DC/ESP4/2X1/1X2 Safety Relay (…

Ordering Phoenix Contact components: what we need

Phoenix Contact items are ordered by a seven-digit order number together with the type designation, both printed on the side of the module. Send both, plus the quantity. If the number is unreadable, send the type text and a photo. For power supplies, state input voltage, output current and whether the unit runs in parallel or with a redundancy module. For buyers in the GCC replacing an older unit, we check the manufacturer's documentation for the listed successor type.

Facts checked against Phoenix Contact's own company history (phoenixcontact.com), October 2026.

FAQ

Questions about the Phoenix Contact REL-MR-60DC/21 Plug-in Relay 60 V DC

Answers from our engineering team on installation, compatibility and integration.

01What coil voltage does it use?
60 V DC, with a range of 36 to 165 V DC.
02What is the coil resistance?
20500 ohms with a tolerance of 15 %.
03What is the typical coil current?
3 mA.
04What is the contact rating?
6 A continuous, 250 V AC/DC.
05How wide is it?
5 mm.